10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

[

For the fiscal year ended December 25, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from            to           

Commission file number 0-18914

DORMAN PRODUCTS, INC.

(Exact name of registrant as specified in its charter)

Pennsylvania	23-2078856
(State or other jurisdiction of incorporation or organization)	(I.R.S Employer Identification No.)

3400 East Walnut Street, Colmar, Pennsylvania 18915

(Address of principal executive offices) (Zip Code)

(215) 997-1800

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class:                               Trading Symbol(s)	Name of each exchange on which registered:
Common Stock, $0.01 Par Value                             DORM	The NASDAQ Global Select Market

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ☒  No ☐

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ☐   No ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes ☒  No ☐ 

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).  Yes ☒  No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Indicate by check mark whether the registrant has filed a report on an attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issues its audit report.    ☒

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes ☐       No ☒

The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 26, 2021 was $2,214,395,974.

As of February 17, 2022, the registrant had 31,545,603 shares of common stock, $0.01 par value, outstanding.   

DOCUMENTS INCORPORATED BY REFERENCE

Certain portions of the registrant's definitive proxy statement, in connection with its 2022 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission within 120 days after December 25, 2021, are incorporated by reference into PART III of this Annual Report on Form 10-K.

DORMAN PRODUCTS, INC.

INDEX TO ANNUAL REPORT ON FORM 10-K

DECEMBER 25, 2021

		Page
	PART I
ITEM 1.	Business	3
ITEM 1A.	Risk Factors	10
ITEM 1B.	Unresolved Staff Comments	25
ITEM 2.	Properties	25
ITEM 3.	Legal Proceedings	26
ITEM 4.	Mine Safety Disclosures	26
ITEM 4.1	Information about Our Executive Officers	26
	PART II
ITEM 5.	Market for Registrant's Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities	28
ITEM 6.	[Reserved]	29
ITEM 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	30
ITEM 7A.	Quantitative and Qualitative Disclosures about Market Risk	39
ITEM 8.	Financial Statements and Supplementary Data	39
ITEM 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	66
ITEM 9A.	Controls and Procedures	66
ITEM 9B.	Other Information	69
ITEM 9C.	Disclosure Regarding Foreign Jurisdictions that Prevent Inspections	69
	PART III
ITEM 10.	Directors, Executive Officers and Corporate Governance	70
ITEM 11.	Executive Compensation	70
ITEM 12.	Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters	70
ITEM 13.	Certain Relationships and Related Transactions, and Director Independence	71
ITEM 14.	Principal Accounting Fees and Services	71
	PART IV
ITEM 15.	Exhibits and Financial Statement Schedules	72
ITEM 16.	Form 10-K Summary	72

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The Company’s fiscal year ends on the last Saturday of the calendar year.

References to	Refers to the year ended
Fiscal 2019	December 28, 2019
Fiscal 2020	December 26, 2020
Fiscal 2021	December 25, 2021

As used herein, unless the context otherwise requires, “Dorman,” “the Company,” “we,” “us,” or “our” refers to Dorman Products, Inc. and its subsidiaries.

This Annual Report on Form 10-K contains the registered and unregistered trademarks or service marks that are the property of Dorman Products, Inc. and/or its affiliates. This Annual Report on Form 10-K also may contain additional trade names, trademarks or service marks belonging to other companies. We do not intend our use or display of other parties’ trademarks, trade names or service marks to imply, and such use or display should not be construed to imply, a relationship with, or endorsement or sponsorship of us by these parties.

Statement Regarding Forward-Looking Statements

Certain statements in this document constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995, including statements related to the global coronavirus pandemic (“COVID-19”), net sales, diluted earnings per share, gross profit, gross margin, selling, general and administrative expenses, income tax expense, income before income taxes, net income, cash and cash equivalents, indebtedness, liquidity, the Company’s share repurchase program, the Company’s outlook, the Company’s growth opportunities and future business prospects, operational costs and productivity initiatives, inflation, customs duties and mitigation of tariffs, long-term value, acquisitions and acquisition opportunities, investments, cost offsets, quarterly fluctuations, new product development, customer concessions, and fluctuations in foreign currency. Words such as “may,” “believe,” “demonstrate,” “expect,” “estimate,” “forecast,” “project,” “plan,” “anticipate,” “intend,” “should,” “will” and “likely” and similar expressions identify forward-looking statements. However, the absence of these words does not mean the statements are not forward-looking. In addition, statements that are not historical should also be considered forward-looking statements. Readers are cautioned not to place undue reliance on those forward-looking statements, which speak only as of the date the statement was made. Such forward-looking statements are based on current expectations that involve a number of known and unknown risks, uncertainties and other factors (many of which are outside of our control) which may cause actual events to be materially different from those expressed or implied by such forward-looking statements. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. For information concerning factors that could cause actual results to differ materially from the information contained in this report, reference is made to the information in PART I, ITEM 1A, “Risk Factors.” The Company is under no obligation to (and expressly disclaims any such obligation to) update any of the information in this report if any forward-looking statement later turns out to be inaccurate whether as a result of new information, future events or otherwise.

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PART I

ITEM 1. Business.

General

We are one of the leading suppliers of replacement parts and fasteners for passenger cars and light-, medium-, and heavy-duty trucks in the automotive aftermarket industry. As of December 25, 2021, we marketed approximately 118,000 distinct parts compared to approximately 81,000 as of December 26, 2020, many of which we designed and engineered. This number excludes private label stock keeping units and other variations in how we market, package and distribute our products, includes distinct parts of acquired companies and reflects distinct parts that have been discontinued at the end of their lifecycle. The increase in the number of distinct parts in 2021 was largely driven by our acquisition of Dayton Parts. We are one of the leading aftermarket suppliers of original equipment (“OE”) “dealer exclusive” parts. Original equipment “dealer exclusive” parts are those which were traditionally available to professional installers and consumers only from original equipment manufacturers or used parts from salvage yards and include, among other parts, leaf springs, intake manifolds, exhaust manifolds, window regulators, radiator fan assemblies, tire pressure monitor sensors, exhaust gas recirculation (EGR) coolers and complex electronics modules. Fasteners include such items as oil drain plugs, wheel bolts, and wheel lug nuts. For fiscal 2021, approximately 73% of our products were sold under brands that we own, and the remainder of our products were sold for resale under customers' private labels, other brands or in bulk. Our products are sold primarily in the United States through automotive aftermarket retailers, including through their online platforms; national, regional and local warehouse distributors; and specialty markets, and salvage yards. We also distribute automotive aftermarket parts internationally, with sales primarily into Canada and Mexico, and to a lesser extent, Europe, the Middle East, and Australia.

The Automotive Aftermarket Industry

The automotive aftermarket industry has two distinct sectors: parts for passenger cars and light trucks, which according to the 2022 Auto Care Association Factbook, accounted for projected industry sales of approximately $324.8 billion in 2021, and parts for medium and heavy-duty trucks, which accounted for projected industry sales of approximately $94.4 billion in 2021. We sell products into both sectors, with a majority of our products being designed for the passenger car and light truck sector. Our acquisition of Dayton Parts in 2021 increased our product offerings in the medium and heavy-duty truck sector.

Two distinct groups of end-users buy replacement vehicle parts for passenger cars and light trucks: (i) individual consumers, who purchase parts to perform "do-it-yourself" repairs on their own vehicles; and (ii) professional installers, which include vehicle repair shops and dealership service departments. Individual consumers typically are supplied through retailers and the retail arms of warehouse distributors. Vehicle repair shops generally purchase parts through local independent parts wholesalers and national parts distributors. Automobile dealership service departments generally obtain parts through the distribution systems of vehicle manufacturers and specialized national and regional parts distributors.

The largest purchasers of medium- and heavy-duty vehicle aftermarket parts are OE manufacturers, independent distributors, including organizations associated with large buying groups and other distributors, as well as independent component specialists and rebuilders, and auto parts stores. The service work performed on medium- and heavy-duty vehicles is generally completed by end user businesses that utilize these vehicles in their operations, fleets, and independent garages and distributors, who buy parts from the purchasers above or in some instances directly from suppliers like us.

Spending in the aftermarket for parts for passenger cars and light trucks, as well as medium and heavy-duty trucks, generally can be grouped into three categories: discretionary, maintenance, and repair. Discretionary, such as accessories and performance, tends to move in-line with consumer discretionary spending. Maintenance is composed of products and services, such as oil and oil changes, and tends to be

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less correlated with discretionary spending. Repair consists mainly of replacement parts that fail over time and tends to be less cyclical as it is largely comprised of parts necessary for a vehicle to function properly or safely. The majority of our products fall into the repair category.

The increasing complexity and the number of different makes and models of automobiles have resulted in a significant increase in the number of products required to service the domestic and foreign automotive fleets. Accordingly, the number of parts required to be carried by retailers and wholesale distributors has increased substantially, which is reflected in the increase in the number of distinct parts we marketed in 2021 as compared to 2020. The requirement to include more products in inventory and the significant consolidation among distributors of automotive replacement parts have in turn resulted in larger distributors. See ITEM 1A, “Risk Factors – Risks Related to Our Business – Our Industry, Operations and Competition” for information regarding the potential impacts of consolidation on our business.

Retailers and others who purchase automotive aftermarket parts for resale are constrained to a finite amount of space in which to display and stock products. Thus, the reputation for quality, customer service, and line profitability that a supplier provides are significant factors in a retailer’s or other reseller’s decision as to which product lines to carry in the limited space available. Further, because of the efficiencies achieved through the ability to order all or part of a complete line of products from one supplier (with possible volume discounts), as opposed to satisfying the same requirements through a variety of different sources, retailers and other resellers of automotive aftermarket parts often seek to purchase products from fewer but stronger suppliers.

Brands and Products

We market our products under the DORMAN^® and Dayton Parts^® brand names and several sub-brands, which identify products that address specific segments of the automotive aftermarket industry. In addition, across all our sub-brands, customers can find a subset of products that have been branded DORMAN^® OE FIX™ products.

Some of our most popular brands include:

DORMAN^® OE Solutions^® - A wide variety of replacement parts we introduced to the automotive aftermarket, covering many product categories across all areas of the vehicle, including fluid reservoirs, variable valve timing components, complex electronics, and integrated door lock actuators.

DORMAN^® OE FIX™ - Dorman’s distinct repair innovations that you cannot get from original equipment manufacturers, all designed to save time, money or hassle.

DORMAN^® HD Solutions™ - Heavy-duty aftermarket parts for class 4-8 vehicles. These products include lighting, cooling, engine management, wheel hardware, air tanks and cab products.

DORMAN^® HELP!^® - Broad assortment of small automotive replacement parts that are primarily sold in retail store fronts such as door handles, keyless remotes and cases and door hinge repair parts.

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DORMAN^® Conduct-Tite^® - A wide array of electrical components for common repairs as well as for enthusiasts to customize and upgrade their vehicles.

Dayton Parts® - Complete product offering of brake, spring, steering, suspension, driveline and hitch & coupling product lines.

We group our products into four major classes: powertrain, chassis, automotive body, and hardware. The following table represents each of the four classes as a percentage of net sales for each of the last three fiscal years:

	Percentage of Net Sales
	Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Powertrain		40	%		40	%		40	%
Chassis		34	%		30	%		30	%
Automotive Body		22	%		25	%		25	%
Hardware		4	%		5	%		5	%
Total		100	%		100	%		100	%

Our powertrain product line includes intake and exhaust manifolds, cooling products, harmonic balancers, fluid lines, fluid reservoirs, connectors, 4-wheel drive components and axles, drain plugs, and other engine, transmission and axle components. Chassis products include control arms, ball joints, tie-rod ends, brake hardware and hydraulics, wheel and axle hardware, suspension arms, knuckles, links, bushings, leaf springs, and other suspension, steering, and brake components. Our line of automotive body products includes door handles and hinges, window lift motors, window regulators, switches and handles, wiper components, lighting, electrical, and other interior and exterior automotive body components. Hardware products include threaded bolts and auto body fasteners, automotive and home electrical wiring components, and other hardware assortments and merchandise.

We warrant our products against certain defects in material and workmanship when used as designed on the vehicle on which it was originally installed. We offer a limited lifetime warranty on most of our products. Our standard warranty limits the end-user’s remedy to the repair or replacement of the part that is defective.

Product Development

Product development and continuous innovation are central to our business. The development of a broad range of products, many of which are not conveniently or economically available elsewhere, historically has enabled us to grow and is an important driver for our future growth. Our product strategy has been to design and engineer products, many of which we believe are better and easier to install and/or use than the original parts they replace, and to commercialize automotive parts for the broadest possible range of uses. All new product ideas are reviewed by our product management staff and a cross-functional in-house team to determine potential improvements and inclusions that will create a better user experience. The following table represents the number of distinct parts we introduced for each of the last three fiscal years: 

	Year Ended
	December 25, 2021		December 26, 2020		December 28, 2019
New to the aftermarket		990		1,433		1,625
Line extensions		3,325		2,046		3,614
Total distinct parts introduced		4,315		3,479		5,239

In 2021, we introduced several new product categories to the aftermarket including: a new upgraded Dorman® OE FIX™ aluminum oil filter housing solution, aftermarket-exclusive hub rotor and caliper bracket bolt kits, and new complex electronic solutions, such as cruise control distance sensors, blind spot

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detection modules and other advanced driver assistance system (ADAS) products. Each of these solutions gives installers and consumers additional choice when searching for reliable, affordable replacements.

Other innovative technologies we released in 2021 include diesel exhaust fluid (DEF) emission components, including heaters and pumps, and new electronic power steering rack solutions. We also continued our efforts to find ways to further simplify customer installation efforts through new combination solutions, such as pre-pressed axle and bearing assemblies.

Our product teams also grow and expand existing categories by introducing new products that are designed to fit more vehicles, providing enhanced opportunities for aftermarket service providers to serve their customers. In 2021, we extended our lines in strategic core categories such as window regulators, chassis and control arms, valve covers, manifolds, and drive shafts.

Some of our most popular innovations are those that provide vehicle owners significant savings over other repair alternatives, such as rust repair solutions. Our truck bed floor supports, differential covers and fuel tank crossmembers often eliminate the need to replace entire truck beds, axles and other large vehicle sections by facilitating direct repair of corroded components.

We also grew our lines of heavy-duty solutions in fiscal 2021 through the acquisition of Dayton Parts, which lines include leaf springs, brake drums, and various other steering and suspension products. In addition to these new solutions from Dayton Parts, we also introduced hundreds of new products into our Dorman® HD Solutions™ line, including a new Diesel Decoder™ tool that enables scanning of engine diagnostics, new exhaust gas recirculation (EGR) valves, and various new engine and emission sensors. 

Sales and Marketing

We market our products to three groups of purchasers who in turn supply individual consumers and professional installers. Our products are also available in our customers’ retail stores, on our customers’ websites, and through warehouse distributors. For the year ended December 25, 2021:

(i) approximately 56% of our net sales was generated from sales to automotive aftermarket retailers, including major chains such as Advance, AutoZone and O'Reilly;

(ii) approximately 33% of our net sales was generated from sales to warehouse distributors, such as NAPA, which may be local, regional or national in scope, and which also may engage in retail sales; and

(iii) approximately 11% of our net sales was generated from our heavy-duty channel including through national, regional, and local warehouse distributors, such as FleetPride, and specialty service shops, and sales to other markets, which include, among others, salvage yards and the parts distribution systems of OE parts manufacturers as well as mass merchants, such as Walmart, for our home electrical wiring components.

As of December 25, 2021, we had a sales and sales support team of over 120 people selling our products either directly to our customers or, with respect to certain select customers, indirectly through independent manufacturers’ representative agencies worldwide.

Our sales efforts are not directed merely at selling individual products, but more broadly towards selling our entire product portfolio. Our sales strategy includes increasing sales not only by securing new customers, but also by adding new product lines and expanding product selection within existing customers in an effort to make our customers a destination for new-to-the-aftermarket products.

We use catalogs, application guides, digital marketing tools, training materials, videos and additional content to describe and sell our products and other applications as well as to train our customers' sales teams. Our primary website, www.dormanproducts.com, provides a search engine that can be used to search our extensive catalog. The information on the website is not and should not be considered part of this Form 10-K and is not incorporated by reference in this Form 10-K.

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As of December 25, 2021, we serviced more than 4,500 active accounts. During fiscal 2021, three customers each accounted for more than 10% of net sales and in the aggregate accounted for approximately 54% of net sales.

Manufacturing and Procurement

Most of our products are manufactured by third parties. We engage third-party manufacturers around the world to develop and manufacture products according to our performance and design requirements, oftentimes using tooling that we own. In fiscal 2021, as a percentage of our total dollar volume of purchases, approximately 26% of our products were purchased from various suppliers throughout the United States and the balance of our products were purchased directly from suppliers outside of the United States. Our global supplier network provides access to a broad array of manufacturing capabilities and technologies while limiting our dependency on any single source of supply. While our supplier selection and sourcing programs will continue to leverage our strategic manufacturers for a substantial portion of our product portfolio, we also have qualified alternative sources available to provide additional support and capacity, if needed. We make a concerted effort to build and nurture strong, healthy relationships with our suppliers. In fiscal 2021, we purchased automotive products in substantial volumes from over 250 suppliers, and no single supplier accounted for more than 10% of our total product purchases in fiscal 2021. 

Packaging, Inventory and Shipping

Finished products acquired from third-party suppliers are received at one or more of our facilities, depending on the type of part. It is our practice to inspect samples of shipments based upon supplier performance. If cleared, these shipments of finished parts are logged into our computerized production tracking systems and staged for packaging, if necessary.

We employ a variety of custom-designed packaging machines which include blister sealing, skin film sealing, clamshell sealing, bagging and boxing lines. Packaged product generally contains our label (or a private label), a part number, a universal packaging bar code suitable for electronic scanning, a description of the part and, if appropriate, installation instructions. Products are also sold in bulk to automotive parts manufacturers and packagers. Computerized tracking systems, mechanical counting devices and experienced workers combine to help ensure that the proper variety and numbers of parts meet the correct packaging materials at the appropriate places and times to produce the required quantities of finished products.

Packaged inventory is either stocked in the warehouse portions of our facilities or in distribution centers maintained by our third-party logistics providers and is organized to facilitate the most efficient methods of retrieving product to fill customer orders. We strive to maintain a level of inventory to adequately meet current customer order demand with additional inventory to satisfy new customer orders and special programs.

We ship our products by contract carrier, common carrier or parcel service. Products are generally shipped to each customer's main warehouses for redistribution within its network. In certain circumstances, at the request of a customer, we ship directly to that customer's warehouses, stores or other locations either via smaller direct ship orders or consolidated store orders that are cross docked.

Remanufacturing and Recycling Parts

Certain products we sell contain parts that can be recycled, or as more commonly referred to in our industry, remanufactured. We refer to the used product that is ultimately remanufactured as core. A used core is remanufactured and sold to the customer as a replacement for a unit on a vehicle. Customers and end-users that purchase a remanufactured replacement part will generally return the used core to us, which we then use in the remanufacturing process to make another finished good. Our core inventory consists of used cores purchased and held in our facilities, used cores that are in the process of being returned from our customers and end-users, and remanufactured cores held in finished goods inventory at our facilities. Our

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products that utilize cores include electronic control modules, hybrid batteries and complex mechatronics. We believe our remanufactured parts offer end-users an economical and safe way to maintain their cars on the road, while also reducing the impact to environment.

Competition

The automotive aftermarket industry is highly competitive. Competitive factors affecting the automotive aftermarket include price, product quality, breadth of product line, range of applications, customer service and the growth of e-commerce. Substantially all our products are subject to competition with similar products offered by other providers of automotive aftermarket repair and replacement parts. Some of these competitors are divisions and subsidiaries of companies much larger than us who possess a longer history of operations and greater financial and other resources than we do. We also face competition from OE manufacturers who sell through their dealerships many of the same replacement parts that we sell, although these manufacturers generally sell parts only for cars they produce. Our customers may also be successful in sourcing some of our products directly from our suppliers. Further, some of our private label customers also compete with us. For more information on risks relating to our competition, see ITEM 1A, “Risk Factors – Risks Related to Our Business – Our Industry, Operations and Competition.”

Seasonality

Our business can be affected by weather conditions. Extremely hot or cold weather generally results in an increase in automotive parts failure at an accelerated rate, which generally leads to an increase in our sales for the duration of the extreme weather event.

Impact of COVID-19

While COVID-19 did not adversely affect demand for our products for the year ended December 25, 2021, during the year we did experience pandemic-related pressures in the global supply network that caused logistical issues, including higher freight costs, supplier lead time delays of products and inflation with respect to materials and labor costs, which impacted our results. As countries continue to combat COVID-19, and as government-imposed regulations regarding, among other things, COVID-19 testing, vaccine mandates and related workplace restrictions change around the world, there is still a risk that the pandemic may impact the overall demand environment as well as our ability to maintain staffing at our facilities, to source parts and other materials to meet demand levels, to maintain inventory levels and to fulfill contractual requirements. We will continue to closely monitor updates regarding the spread of COVID-19 and its variants, the distribution of vaccines developed to combat COVID-19, and applicable vaccine mandates, and we will adjust our operations according to guidelines from local, state and federal officials. In light of the foregoing, we may take actions that alter our business operations or that we determine are in the best interests of our employees, customers, suppliers and shareholders.

For a more detailed discussion of the impact of COVID-19 on our business, see “Human Capital Resources” below and ITEM 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations – Impacts of COVID-19.”

Patents, Trademarks and Other Intellectual Property

We own a number of patents important to our business, and we expect to continue to file patent applications to protect our research and development investments in new products. As of December 25, 2021, we held 74 patents and 14 pending patent applications, including foreign counterpart patents and foreign applications. For the United States, patents may last 20 years from the date of the patent's filing, depending upon term adjustments made by the patent office. In addition, we hold numerous trademarks in the United States and other countries. We also have licenses to intellectual property for the manufacture, use and sale of certain of our products.

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We obtain patent and other intellectual property rights used in connection with our business when practicable and appropriate. Historically, we have done so both organically, through commercial relationships and in connection with acquisitions.

For more information concerning the risks related to patents, trademarks and other intellectual property, see ITEM 1A, "Risk Factors – Risks Related to Our Business – Our Intellectual Property and Information Security.”

Human Capital Resources

General

As of December 25, 2021, we had 3,360 employees worldwide, substantially all of whom were employed full-time. Our employees are categorized by various functions. “Operations” consists of employees engaged in production, product distribution and inventory quality control. “Product Development” includes employees involved in product development and purchasing. “Quality and Engineering” consists of employees involved in internal and external quality management, manufacturing engineering, design, and testing. “Sales” includes employees employed in sales and customer service. “Administration” includes executive officers and individuals employed in finance, legal, information technology, human resources and other functions supporting our business. The following table shows employees by function and region.

	December 25, 2021
	U.S.		Non-U.S.		Total
Operations		2,534		78		2,612
Product Development		162		2		164
Quality and Engineering		162		39		201
Sales		161		14		175
Administration		208		—		208
Total Employees		3,227		133		3,360

None of our global employees is covered by a collective bargaining agreement. We consider our relations with our employees to be generally good.

Health and Safety

We maintain a safety culture grounded on the premise of eliminating workplace incidents, risks and hazards. We have created and implemented processes to help eliminate safety events and reduce their frequency and severity. We also review and monitor our performance closely. In 2021, we adopted an environmental, health and safety policy outlining our commitment to policies and practices that support the health and safety of our employees, contractors and the community, and the protection of the environment in the communities where we operate. We also implemented a human rights policy for the organization outlining our commitment to operating with respect for human rights.

In response to COVID-19, we implemented and continue to maintain enhanced safety measures in all our facilities to promote the health and welfare of our employees. We provided employees with communications and education programs designed to encourage employees to get vaccinated against COVID-19 when eligible and provided on-site vaccination clinics at our facilities. In addition, we maintain a COVID-19 sick leave policy providing continued salary and benefits to eligible employees.

Diversity and Inclusion

We embrace the diversity of our employees, including their unique backgrounds, experiences, thoughts and talents. Employees are valued and appreciated for their distinct contributions to the growth and sustainability of our business. We strive to cultivate a culture and vision that supports and enhances our ability to recruit, develop and retain diverse talent at every level. As part of our commitment to diversity,

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in 2021, we appointed our first Vice President of Development and Diversity, responsible for leading our diversity and inclusion strategy. Moreover, in 2021, we launched our “All In” initiative, a summit focused on inviting our employees to think and engage more with ideas such as diversity and inclusion to foster a collaborative environment.

As part of our commitment to a culture of inclusion, our Contributor Resource Group ("CRG") Program broadens and enhances company-wide interaction opportunities for our employees. Our CRG is open to all and involves activities for employees whose background is the focus of the CRG and those who are supportive of the groups that have been formed. These company-wide networks build on and coordinate with local teams that are already active in our operations and include groups such as those focused on the experiences of Women, Veteran’s, Multi-Cultural and Early Career Employees.

Talent and Development

Our talent strategy is focused on attracting the best talent, developing their skillsets and experiences and rewarding their performance. We focus significant attention on attracting and retaining talented and experienced individuals to manage and support our operations, and our leadership team routinely reviews employee turnover rates at various levels of the organization. Leadership also reviews employee engagement surveys to monitor employee morale and receive feedback on a variety of issues.

Compensation

We pay our employees competitively and offer a broad range of company-paid benefits, which we believe are competitive with others in our industry and in the geographies in which we compete for talent. We conduct an executive compensation benchmarking review annually to help ensure we are providing market-based compensation including base salary, short-term incentive and long-term incentives. We also participate in annual compensation surveys for all positions and strive to compensate our top talent and key roles competitively. Moreover, we believe our long-term incentives are structured in a manner to provide time-based vesting schedules that are retentive.

For information on risks relating to our human capital resources, see ITEM 1A, “Risk Factors – General Risk Factors – Losing the services of our executive officers or other highly qualified and experienced employees, or failing to attract and retain any of such officers or employees, could adversely affect our business.”

Available Information

Our Internet address is www.dormanproducts.com. The information on the website is not and should not be considered part of this Form 10-K and is not incorporated by reference in this Form 10-K. The website is, and is only intended to be, for reference purposes only. We make available free of charge on or through our website our Annual Report on Form 10-K, quarterly reports on Form 10-Q and current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as soon as reasonably practicable after we electronically file such material with, or furnish it to, the Securities and Exchange Commission (the “SEC”). In addition, we will provide, at no cost, paper or electronic copies of our reports and other filings made with the SEC. Requests should be directed to: Attention: Secretary, Dorman Products, Inc., 3400 East Walnut Street, Colmar, Pennsylvania 18915.

ITEM 1A. Risk Factors

In addition to the other information set forth in this report, you should carefully consider the following factors, which could materially affect our business, financial condition or future results. The risks described below are not the only risks we face. Additional risks and uncertainties not currently known to us or that

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we currently deem to be immaterial also may materially affect our business, financial conditions or results of operations. The risks are listed below in no particular order.

Risks Related to Our Business

Our Industry, Operations and Competition

Our business is impacted by the age, condition and number of vehicles that need servicing and by improvements in the quality of new vehicle parts.

The size of the automobile aftermarket industry depends, in part, upon the number of vehicles on the road, average vehicle age, change in total miles driven per year, new or modified environmental and vehicle safety regulations, including fuel-efficiency and emissions reduction standards, pricing of new cars and new car quality and related warranties. We believe the automobile aftermarket industry has been negatively impacted by the fact that the quality of more recent automotive vehicles and their component parts (and related warranties) has improved, thereby lengthening the repair cycle. Generally, if parts last longer, there will be less demand for our products, and the average useful life of automobile parts has been steadily increasing in recent years due to innovations in products and technology. In addition, the introduction by original equipment manufacturers of increased warranty and maintenance initiatives has the potential to decrease the demand for our products. These factors could have a material adverse effect upon our business, financial condition and results of operations.

Our industry is highly competitive, and our success depends on our ability to compete with suppliers of automotive aftermarket products, some of which may have substantially greater financial, marketing and other resources than we do.

The automotive aftermarket industry is highly competitive, and our success depends on our ability to compete with domestic and international suppliers of automotive aftermarket products. Due to the diversity of our product offering, we compete against a large cross section of aftermarket companies and brands, including, but not limited to, Cardone Industries, Inc., Standard Motor Products, Inc., Tenneco, Inc., Bosch Auto Parts, First Brands Group, LLC, Gates Corporation, Continental Automotive Systems, Inc. (VDO), MevoTech LP, ACDelco (owned by General Motors Company), Motorcraft (owned by Ford Motor Company), Meritor, Inc., Automann Inc. and numerous category specific competitors. In addition, we face competition from original equipment manufacturers, which, through their automotive dealerships, supply many of the same types of replacement parts we sell. Further, some of our private label customers also compete with us.

Some of our competitors may have larger customer bases and significantly greater financial, technical and marketing resources than we do. These factors may allow our competitors to:

• respond more quickly than we can to new or emerging technologies and changes in customer requirements by devoting greater resources than we can to the development, promotion and sale of automotive aftermarket products;

•engage in more extensive research and development;

•sell products at lower prices than we do;

•undertake more extensive marketing campaigns; and

• make more attractive offers to existing and potential customers and strategic partners.

We cannot assure you that our competitors will not develop products or services that are equal or superior to our products or that achieve greater market acceptance than our products or that in the future other companies involved in the automotive aftermarket industry will not expand their operations into product lines produced and sold by us. We also cannot assure you that additional entrants will not enter the automotive aftermarket industry or that companies in the aftermarket industry will not consolidate. Any such competitive pressures could cause us to lose market share or could result in significant price decreases and could have a material adverse effect upon our business, financial condition and results of operations.

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The loss or decrease in sales among one of our top customers, or a material change in the terms on which they are willing to buy from us, could have a substantial negative impact on our sales and operating results.

A significant percentage of our sales has been, and is expected to be, concentrated among a relatively small number of customers. During fiscal 2021, three customers each accounted for more than 10% of net sales and in the aggregate accounted for approximately 54% of net sales. We anticipate that this concentration of sales among these customers will continue in the future. The loss of a significant customer or a substantial decrease in sales to such a customer could have a material adverse effect on our sales and operating results. In addition, any consolidation among our key customers may further increase our customer concentration risk.

Also, while we may enter into long-term agreements with certain of our significant customers, those agreements generally do not contain purchase commitments, which instead are set forth in individual purchase orders submitted by customers based on their then-current or projected needs. We have in the past, and may in the future, lose customers or lose a particular product line of a customer due to the highly competitive conditions in the automotive aftermarket industry, consolidation of customers and customer initiatives to buy direct from foreign suppliers or other business considerations. A decision by any significant customer, whether motivated by competitive conditions, financial difficulties or otherwise, to materially decrease the amount of products purchased from us or the number of our product lines they choose to carry, to change their manner of doing business with us, or to stop doing business with us, could have a material adverse effect on our business, financial condition and results of operations.

Because our sales are concentrated, and the market in which we operate is very competitive, we are under ongoing pressure from our customers to offer lower prices, extend payment terms, increase marketing and transportation allowances, provide enhanced rebates, discounts, rights of return and credits and offer other terms more favorable to these customers. These customer demands have put continued pressure on our operating margins and profitability and in the future could have a material adverse effect upon our business, financial condition and results of operations.

There is substantial price competition in our industry, and our success and profitability will depend on our ability to maintain a competitive cost and price structure.

There is substantial price competition in our industry, and our success and profitability will depend on our ability to maintain a competitive cost and price structure. This is the result of a number of industry trends, including the consolidated purchasing power of large customers, the growth of e-commerce and actions taken by some of our competitors in an effort to attract new business, including efforts to enhance their online presence. Price reductions may be required to remain competitive in light of such industry trends, and such reductions may impact our sales and profit margins. Our future profitability will depend in part upon our ability to respond to changes in product and distribution channel mix, to continue to improve our manufacturing and distribution efficiencies, to generate cost reductions, including reductions in the cost of components purchased from outside suppliers, and to maintain a cost structure that will enable us to offer competitive prices. Our inability to maintain a competitive cost structure or to pass through increases in costs to our customers could have a material adverse effect upon our business, financial condition and results of operations.

Limited shelf space and the inability of our customers to expand into new locations may adversely affect our ability to grow.

Since the amount of space available to a retailer and other purchasers of our products is limited, our products compete with other automotive aftermarket products, some of which are entirely dissimilar and otherwise non-competitive (such as car waxes and engine oil), for shelf and floor space. Moreover, our growth depends, in part, on the ability of our customers to open and operate new locations in which our products may be sold. No assurance can be given that additional space will be available in our customers'

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existing locations or that our customers will be able to expand into new locations that would support growth in the number of products and product lines that we offer. Any failure to maintain and/or grow our shelf or floor space, and any failure of our customers to maintain and/or grow their number of locations, could have a material adverse effect upon our business, financial condition and results of operations.

Customer consolidation in the automotive aftermarket industry may lead to customer contract terms less favorable to us, which may negatively impact our financial results.

The automotive aftermarket industry has been consolidating over the past several years. As a result of such consolidations, many of our customers have grown larger and therefore have more leverage in the arms-length negotiations of agreements with us for the sale of our products. Customers may require us to provide extended payment terms, issue customer credits and accept returns of slow-moving product to obtain new, or retain existing, business. While we attempt to avoid or minimize such concessions, in some cases payment terms to customers have been extended, enhanced customer credits have been issued and returns of product have exceeded historical levels. The product returns and customer credits primarily affect our net sales and profit levels while payment term extensions and additional factoring costs generally reduce operating cash flow and require additional capital to finance our business. We expect these trends to continue for the foreseeable future.

Our business, results of operations and financial condition could be materially adversely affected by the effects of widespread public health epidemics, including COVID-19, that are beyond our control.

Any outbreaks of contagious diseases, public health epidemics and other adverse public health developments in countries where we, our customers and suppliers, operate could have a material and adverse effect on our business, results of operations and financial condition. The COVID-19 pandemic has adversely impacted, and is expected to continue to adversely impact, our business, and the nature and extent of the impact may be highly uncertain and beyond our control. Uncertain factors relating to COVID-19 include the duration, spread and severity of the virus, the impact of mutations to the virus, the efficacy and distribution of vaccines and treatments designed to combat COVID-19, the effects of the COVID-19 pandemic on our customers, vendors, suppliers and employees, and the actions, or perception of actions that may be taken, to contain or treat its impact, including declarations of states of emergency, workplace mandates, business closures, manufacturing restrictions and a prolonged period of travel, commercial and/or other similar restrictions and limitations.

COVID-19 and the measures designed to contain its spread may negatively impact demand for our products, which could have a material and adverse effect on our business, results of operations and financial condition. Similarly, our suppliers may not have the materials, capacity, or capability to manufacture our products according to our schedule and specifications. If our suppliers’ operations are impacted, we may need to seek alternate suppliers, which may be more expensive, may not be available or may result in delays in shipments to us and subsequently to our customers, each of which would affect our results of operations. Further, in the event any members of our workforce, or those of our suppliers, contract COVID-19 or are otherwise compelled to quarantine, or refuse to comply with any COVID-19 workplace mandates, we may experience shortages in labor and services that we require for our operations. Our increased use of remote work environments and virtual platforms in response to the COVID-19 pandemic may also increase our risk of cyber-attacks and data security breaches.

The duration of the disruption to our customers, our supply chain and our employees, and the related financial and operational impacts to us, cannot be estimated at this time. Should any such disruption continue for an extended period of time, the impact could have a material adverse effect on our business, results of operations and financial condition.

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If we fail to maintain sufficient inventory to meet current customer demands, or if we fail to anticipate future changes in customer demands, our financial results could be adversely affected.

We must maintain sufficient in-stock inventory and anticipate future changes in customer demands in order to be successful. If we fail to do so, our financial results could be adversely affected. Fluctuations in demand may result from a number of factors, including, but not limited to, global economic conditions, COVID-19, the age, condition and number of vehicles that need servicing, automotive parts failure rates, loss of market share and improvements in product designs that result in enhanced quality and reliability of new vehicle parts. As a result of these and other factors, we have experienced and expect to continue to experience fluctuating levels of demand that require us to monitor, and, where appropriate, adjust our operations, including our inventory levels and staffing at our facilities. If we are unable to forecast accurately future reductions in demand, we may accumulate excess or obsolete inventory and be forced to reduce hours or layoff or furlough employees. Conversely, if we are unable to forecast accurately future increases in demand, we may have inventory shortfalls or inadequate staffing levels to meet demand, which may result in our inability to fill orders on a timely basis or at all and could result in penalties owed to our customers and the loss of net sales.

Our profitability may be materially adversely affected as a result of overstock inventory-related returns by our customers in excess of anticipated amounts.

In certain instances, we permit overstock returns of inventory that may be either new or non-defective or non-obsolete. To the extent our customer agreements permit overstock returns, those customers are generally limited to returning overstocked inventory according to a specified percentage of their annual purchases from us. We accrue for overstock returns as a percentage of sales, after giving consideration to recent historical returns. While we believe that we make reasonable estimates for overstock returns in accordance with our revenue recognition policies, actual returns may differ from our estimates. To the extent that overstocked returns are materially in excess of our projections, our business, results of operations and financial condition may be materially adversely affected.

Our operations would be materially and adversely affected if we are unable to purchase raw materials, finished goods, equipment, manufactured components, or “core” products from our suppliers.

Because we purchase various types of raw materials, finished goods, equipment, and manufactured component parts from suppliers, we may be materially and adversely affected by the failure of those suppliers to perform as expected. This non-performance may consist of delivery delays or failures caused by production issues or delivery of non-conforming products. The risk of non-performance may also result from the insolvency or bankruptcy of one or more of our suppliers. Our suppliers’ ability to supply products to us is also subject to a number of risks, including availability and cost of raw materials, destruction of their facilities, natural disasters, work stoppages or health crises. For example, the automotive industry is currently experiencing a shortage in the supply of semi-conductors. We utilize semi-conductors in our products and, to date, have not encountered a material shortage in semi-conductors. However, if we are unable to source semi-conductors on a timely basis or at all, we may be unable to produce some of our products, which could adversely affect our ability to develop new products and fill orders on existing products. The COVID-19 pandemic may have a lasting impact on global production and industrial supply chains. For example, certain suppliers in China have been or may in the future be impacted by power shortages and rolling blackouts as a result of increased demand on factories that export products from China to economies beginning to reopen after following COVID-19 closures. In addition, our failure to promptly pay, or order sufficient quantities of inventory from our suppliers may increase the cost of products we purchase or may lead to suppliers refusing to sell products to us at all.

Furthermore, because certain products we sell contain parts that can be recycled and remanufactured, which parts are more commonly referred to in our industry as “core,” our ability to sell those products may

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be materially and adversely affected if we are unable to obtain those core parts from our suppliers on favorable terms, if at all.

Our efforts to protect against and to minimize these risks may not always be effective. If any of our key suppliers fail to meet our needs or if our relationships with any of our key suppliers are not maintained, it may not be possible to replace such supplier without disruptions in our operations. For example, we may experience delays in supply of manufacturing as new suppliers are qualified or as tooling is moved or replaced. Furthermore, replacement of a key supplier is often at higher prices, which could result in lower profit margins and could have a material adverse effect upon our business, financial condition and results of operations.

Our operating results are sensitive to the availability and cost of third-party transportation providers, which are important in the manufacture and transport of our products.

We depend upon third-party transportation providers for shipments to and from our suppliers and for delivery of our products to us and to our customers. Our access to third-party transportation providers is not guaranteed, and, even if we have access to transportation providers, we may be unable to transport our products at economically attractive rates in certain circumstances, particularly in cases of adverse market conditions or disruptions to transportation infrastructure. Fluctuations in demand for third-party transportation providers and other events impacting transportation capacity and costs, such as strikes, political events, international trade disputes, war, terrorism, natural disasters, adverse weather conditions, congestion, increases in fuel prices, public health issues, including the COVID-19 pandemic, and other events, may impact the availability of third-party transportation providers to ship our products or the cost to ship our products. For example, during 2021, like many other companies, we experienced significantly higher freight and transportation costs as a result of global transportation and logistics constraints primarily resulting from the COVID-19 pandemic, which also impacted our ability to readily transport our products. Our business, financial position, results of operations or cash flows could be materially and adversely affected if we are unable to pass along increased transportation costs to our customers, or if third-party transportation capacity were to decline significantly or otherwise become unavailable.

Significant inflation could adversely affect our business and financial results.

Inflation can adversely affect us by increasing our operating costs, including our materials, freight and labor costs, which could have an adverse impact on our business or financial results. Inflation also can have a negative impact on customers’ willingness to purchase our products. In a highly inflationary environment, we may be unable to raise the sales prices of our products at or above the rate of inflation, which could reduce our profit margins.

Changes in U.S. trade policy, including the imposition of tariffs and the resulting consequences, could adversely affect our results of operations.

In fiscal 2021, approximately 74% of our products were purchased from suppliers in a variety of non-U.S. countries. The U.S. government has adopted a new approach to trade policy and in some cases has attempted to renegotiate or terminate certain existing bilateral or multi-lateral trade agreements. It has also imposed tariffs on certain foreign goods, including steel and certain commercial vehicle parts, which have resulted in increased costs for goods imported into the United States. In response to these tariffs, a number of U.S. trading partners have imposed retaliatory tariffs on a wide range of U.S. products. If we are unable to pass price increases on to our customer base or otherwise mitigate the costs, or if demand for our products decreases due to the higher cost, our results of operations could be materially adversely affected. In addition, further tariffs have been proposed by the United States and its trading partners and additional trade restrictions could be implemented on a broader range of products or raw materials. The resulting environment of retaliatory trade or other practices could have a material adverse effect upon our business, financial condition, results of operations, customers, suppliers and the global economy.

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Product Development, Acceptance and Quality

If we do not continue to develop new products and bring them to market, our business, financial condition and results of operations could be materially impacted.

Our historical growth and profitability have depended, in part, on the introduction of new parts to the automotive aftermarket industry. We invest in research and development to sustain or enhance our existing product portfolio. In certain circumstances, there may be a lengthy period between commencing these development initiatives and bringing new or improved products to market. In other instances, factors beyond our control may impact our ability to further our research and development activities. For example, new product activity was adversely impacted in the first half of 2020 due to COVID-19. Although new product development and commercialization rebounded towards the end of 2020, we ended 2020 with lower new product introductions than the prior year. During any period of delay in research and development activities, technology advancements, customer demand and the markets for our products may move in directions that we had not anticipated. There is no guarantee that our new products, or enhancements to existing products, will achieve market acceptance or that the timing of market adoption will be as predicted. As a result, there is a significant possibility that some of our development decisions, including significant expenditures on acquisitions, research and development, or investments in technologies, will not meet our expectations, and that our investment in some projects will be unprofitable. There is also a possibility that we may miss a market opportunity because we failed to invest or invested too late in a technology, product or enhancement sought by our customers or the markets into which we sell. If we fail to make the right investments or fail to make them at the right time, competing solutions may be more attractive in the market. As a result, our competitive position may suffer, and our revenue and profitability could be adversely affected.

The development and production of any new products is often accompanied by design and production delays and related costs. While we expect and plan for such delays and related costs, we cannot predict with precision the time and expense required to overcome these initial problems so that the products comply with specifications. Moreover, as a supplier in the automotive aftermarket industry, we may face additional challenges in designing and producing replacement products as original equipment manufacturers design parts that contain enhanced technology features or that are required to interface with other vehicle systems in order to work properly. There is a risk that we may not be able to introduce or bring to full-scale production new products as quickly as we expected in our product introduction plans, which could have a material adverse effect upon our business, financial condition, and results of operations.

We may be adversely impacted by changes in, or restrictions on access to, automotive technology.

The automotive aftermarket industry is experiencing a period of significant technological change as a result of the trends toward the integration of advanced electronics into traditional products and the increase in the number of vehicles powered by fuel cells or electricity. Software, firmware, and hardware increasingly are becoming functionally integrated with, and inseparable from, physical automotive parts. While, traditionally, repair shops and car owners could diagnose and repair their automobiles with mechanical adjustments, today they often need access to vehicles’ control units using laptops, complex diagnostic tools and software. Restrictions on access to testing and diagnostic tools, software, telematics, data and repair information imposed by the original vehicle manufacturers or by governmental regulations may force vehicle owners to rely on dealers to perform maintenance and repairs. This in turn could limit our ability to design, manufacture and sell new products and could have a material adverse effect upon our business, financial condition and results of operations.

These trends have led to an increase in the significance of technology to our current and future products and the amount of capital we need to invest to develop these new technologies, as well as an increase in the amount of competition we face from technology focused new market entrants. If we misjudge the amount of capital to invest or are otherwise unable to continue providing products that meet our customers’ needs in this environment of rapid technological change, our market competitiveness could

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be adversely affected, which could have a material adverse effect upon our business, financial condition and results of operations.

Design and quality problems with our products could damage our reputation and adversely affect our business.

We have experienced, and in the future may experience, reliability, quality, or compatibility problems in products after their production and sale to customers. Product design and quality problems and any associated product recalls could result in damage to our reputation, loss of customers, a decrease in revenue, litigation, unexpected expenses, and a loss of market share. We have invested and will continue to invest in our engineering, design, and quality infrastructure to help reduce these problems; however, there can be no assurance that we can successfully remedy these issues. To the extent we experience significant quality problems in the future, it could have a material adverse effect upon our business, financial condition and results of operations.

Our Intellectual Property and Information Security

Cyber-attacks or other breaches of information technology security could adversely impact our business and operations.

Cyber-attacks or other breaches of network or information technology security may cause equipment failure, disruption to our operations or the loss or theft of sensitive data relating to our Company and our employees, customers, suppliers, and business partners, including intellectual property, proprietary business information, and other sensitive material. Such attacks, which include the use of malware, encryption, computer viruses and other means for disruption or unauthorized access, on companies have increased in frequency, scope and potential harm in recent years. We take preventive actions to reduce the risk of cyber incidents and protect our information technology and networks, including the data that is maintained within them. However, such preventative actions may be insufficient to repel a cyber-attack or other network breach in the future. Furthermore, because the techniques used to carry out cyber-attacks change frequently and in many instances are not recognized until after they are used against a target, we may be unable to anticipate these changes or implement adequate preventative measures. Moreover, we utilize third-party vendors that provide information technology services for various areas, including human resources functions (e.g., payroll). While we generally require these vendors to monitor and protect their information technology systems against cyber-attacks and other breaches, their efforts may not be effective. To the extent that any cyber-attack or other security breach of one of our vendors’ systems causes a disruption in its operations or results in a loss or damage to our data, loss or theft of our intellectual property, or unauthorized disclosure of confidential information, including information regarding our customers and the ultimate purchasers of our products, it could disrupt our operations or cause significant damage to our reputation, affect our relationship with our customers, suppliers and employees, and lead to claims against us and ultimately harm our business. Moreover, intruders that gain access to our intellectual property and trade secrets may attempt to use that information to harm our business, by developing competing or counterfeit products. Additionally, we may be required to incur significant costs to protect against damage caused by these disruptions or security breaches in the future. Any such cyber-attacks and loss or theft of our intellectual property or unauthorized disclosure of confidential information could have a material adverse effect upon our business, financial condition and results of operations.

We are dependent, in part, on our intellectual property. If we are not able to protect our proprietary rights or if those rights are invalidated or circumvented, our business may be adversely affected.

Our business is dependent, in part, on our ability to innovate, and, as a result, we are reliant on our intellectual property. We generally protect our intellectual property through patents, trademarks, trade secrets, confidentiality and nondisclosure agreements and other measures to the extent our budget permits. There can be no assurance that patents will be issued from pending applications that we have filed or that our patents will be sufficient to protect our key technology from misappropriation or falling into the public domain, nor can assurances be made that any of our patents, patent applications, trademarks or our other

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intellectual property or proprietary rights will not be challenged, invalidated or circumvented. In addition, the level of protection of our proprietary technology varies by country and may be particularly uncertain in countries that do not have well developed judicial systems or laws that adequately protect intellectual property rights. Patent litigation and other challenges to our patents and other proprietary rights are costly and unpredictable and may prevent us from marketing and selling a product in a particular geographic area. Financial considerations also preclude us from seeking patent protection in every country where infringement litigation could arise. Our inability to predict our intellectual property requirements in all geographies and affordability constraints also impact our intellectual property protection investment decisions. If we are unable to protect our proprietary rights, we may be at a disadvantage to others who do not incur the substantial time and expense we incur to create our products. Preventing unauthorized use or infringement of our intellectual property is inherently difficult. Moreover, it may be difficult or practically impossible to detect theft or unauthorized use of our intellectual property. Any of the foregoing could have a material adverse effect upon our business, financial condition and results of operations.

Claims of intellectual property infringement by original equipment manufacturers and others could adversely affect our business and negatively impact our ability to develop new products.

From time to time in the ordinary course of our business we are subject to claims that we are infringing the intellectual property rights of original equipment manufacturers or others. An adverse finding against us in these or similar intellectual property disputes may have a material adverse effect on our business, financial condition and results of operations if we are not able to successfully develop or license non-infringing alternatives. In addition, an unfavorable ruling in intellectual property litigation could subject us to significant liability, increased legal expense, and require us to cease developing or selling the affected products or using the affected works of authorship or trademarks. Any significant restriction that impedes our ability to develop and commercialize our products could have a material adverse effect upon our business, financial condition and results of operations.

Failure to maintain the value of our brands could have an adverse effect on our reputation, cause us to incur significant costs and negatively impact our business.

Our brands are an important component of our value proposition and serve to distinguish our products from those of our competitors. We believe that our success depends, in part, on maintaining and enhancing the value of our brands and executing our brand strategies, which are designed to drive end-user demand for our products and make us a valued business partner to our customers through the support of their marketing initiatives. A decline in the reputation of our brands as a result of events, such as deficiencies or defects in the design or manufacture of our products, or from legal proceedings, product recalls or warranty claims resulting from such deficiencies or defects, may harm our reputation, reduce demand for our products and adversely affect our business. Moreover, our business may be adversely affected if we fail to develop adequate branding strategies following acquisitions of companies with their own established brands. In addition to the foregoing, certain of our customer agreements require us to supply them with private-label branded products. To the extent we use our own products to promote the brands of our customers over our own brands, our business may be adversely affected.

Risks Related to Our Capital Structure and Finances

Our business may be negatively impacted by foreign currency fluctuations and our dependence on foreign suppliers.

In fiscal 2021, approximately 74% of our products were purchased from suppliers in a variety of non-U.S. countries, with the largest portion of our overseas purchases being made in China. The products generally are purchased through purchase orders with the purchase price specified in U.S. dollars. Accordingly, we generally do not have exposure to fluctuations in the relationship between the U.S. dollar and various foreign currencies between the time of execution of the purchase order and payment for the product. To the extent that the U.S. dollar changes in value relative to those foreign currencies in the future,

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the prices charged by our suppliers under new purchase orders may change in equivalent U.S. dollars. For example, the Chinese yuan to U.S. dollar exchange rate has fluctuated over the past several years. Any future changes in the value of the Chinese yuan relative to the U.S. dollar may result in a change in the cost of products that we purchase from China in the future.

As a result of the magnitude of our foreign sourcing, our business may be subject to various risks, including the following:

• uncertainty caused by the elimination of import quotas and the possible imposition of additional quotas or antidumping or countervailing duties, tariffs, or other retaliatory or punitive trade measures;

• imposition of duties, tariffs, taxes and other charges on imports;

• significant devaluation of the U.S. dollar against foreign currencies;

• restrictions on the transfer of funds to or from foreign countries;

• political instability, military conflict or terrorism involving the United States or any of the countries where our products are manufactured or sold, which could cause labor shortages, a delay in transportation or an increase in costs of transportation, labor, raw materials or finished product or otherwise disrupt our business operations; and

• disease, epidemics and health-related concerns could result in closed factories, reduced workforces, scarcity of raw materials and scrutiny and embargoing of goods produced in infected areas.

If these risks limit or prevent us from acquiring products from foreign suppliers or significantly increase the cost of our products, our operations could be seriously disrupted until alternative suppliers are found, which could have a material adverse effect upon our business, financial condition and results of operations.

We extend credit to our customers, some of whom may be unable to pay in the future.

We regularly extend credit to our customers. A significant percentage of our accounts receivable have been, and are expected to continue to be, concentrated among a relatively small number of automotive retailers and automotive parts distributors in the United States. Our four largest customers accounted for 71% of total accounts receivable as of December 25, 2021 and 82% of total accounts receivable as of December 26, 2020. In the ordinary course of business, management monitors, among other things, credit terms and credit limits for these and other customers. In addition, from time to time, some of our customers request increases in their credit limits. Such requests may pose incremental risks to us, either by increasing the credit limit for a customer and accepting additional financial risk of non-payment or maintaining the credit limit and risking the customer redirecting business to another supplier offering better credit terms. If any of our customers were unable to pay, or if any of those customers redirect their business to other suppliers offering better credit terms, it could have a material adverse effect upon our business, financial condition and results of operations.

Increasing our indebtedness could negatively affect our financial health.

We have a credit agreement with Bank of America, N.A., as administrative agent, which provides for a $600 million revolving credit facility. As of December 25, 2021, there was $239.4 million in outstanding borrowings under the credit agreement and two outstanding letters of credit for $0.8 million in the aggregate.

Borrowings under our credit agreement are at variable rates of interest and expose us to interest rate risk. If interest rates increase, our debt service obligations on the variable rate indebtedness will increase even though the amount borrowed remains the same, and, as a result, our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease.

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Furthermore, our outstanding indebtedness and any additional indebtedness we incur may have negative consequences on our business, including, among others: requiring us to use cash to pay the principal of and interest on our indebtedness, thereby reducing the amount of cash available for other purposes; limiting our ability to obtain additional financing for working capital, capital expenditures, acquisitions, stock repurchases, and general corporate or other purposes; and limiting our flexibility in planning for, or reacting to, changes in our business, industries or the market.

Our ability to make payments of principal and interest on our indebtedness depends upon our future performance, which is subject to economic and political conditions, industry cycles and financial, business and other factors, many of which are beyond our control. If we are unable to generate sufficient cash flow from operations to service our indebtedness, we may be required to, among other things: refinance or restructure all or a portion of our indebtedness; reduce or delay planned capital or operating expenditures; reduce, suspend or eliminate our stock repurchase program; or sell selected assets. Such measures might not be sufficient to enable us to service our indebtedness. In addition, any such refinancing, restructuring or sale of assets might not be available on economically favorable terms or at all, and if prevailing interest rates at the time of any such refinancing or restructuring are higher than our current rates, interest expense related to such refinancing or restructuring would increase. The occurrence of any of such events could have a material adverse effect upon our business, financial condition, results of operations.

Our credit agreement contains covenants that will restrict our operational flexibility. If we cannot comply with these covenants, we may be in default under our credit agreement.

Our credit agreement contains affirmative and negative covenants, including with regard to requirements that we maintain specified financial ratios, which limit and restrict our operations and may hamper our ability to engage in activities that may be in our long-term best interests. Events beyond our control could affect our ability to meet these and other covenants under the credit agreement. Moreover, our credit agreement is guaranteed by our material domestic subsidiaries and is supported by a security interest in substantially all of our and their personal property and assets, subject to certain exceptions.

Our failure to comply with our covenants and other obligations under the credit agreement may result in an event of default thereunder. A default, if not cured or waived, may permit acceleration of our indebtedness and provide our lenders with the ability to foreclose on the collateral securing their loans. If our indebtedness is accelerated, we cannot be certain that we will have sufficient funds available to pay down the indebtedness (together with accrued interest and fees), or that we will have the ability to refinance the accelerated indebtedness on terms favorable to us or at all. This could have a material adverse effect upon our business, financial condition and results of operations.

We are exposed to risks related to accounts receivable sales agreements.

We have entered into several customer sponsored programs administered by unrelated financial institutions that permit us to sell certain accounts receivable at discounted rates to the financial institutions without recourse. These agreements permit us to recover on our accounts receivable sooner than if they were not in place and help reduce the risk of non-payment by customers. Certain of our customers, however, do not offer the ability to participate in such sponsored programs. If we do not enter into these agreements, our financial condition, results of operations and cash flows could be materially and adversely affected by delays or failures in collecting trade accounts receivables. In addition, if any of the financial institutions with which we have these agreements experiences financial difficulties or otherwise modifies or terminates these agreements, we may experience material and adverse economic losses due to the loss of such arrangements and the impact of such loss on our liquidity. The modification, termination or other loss of these arrangements could have a material and adverse effect upon our financial condition, results of operations and cash flows. The utility of these arrangements also depends upon LIBOR, as it is a component of the discount rate applicable to each arrangement. If LIBOR increases such that the cost of these arrangements becomes more than the cost of servicing our receivables with existing debt, we may

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not be able to rely on such arrangements, which could have a material adverse effect upon our business, financial condition and results of operations.

The phaseout of the London Interbank Offered Rate (LIBOR), or the replacement of LIBOR with a different reference rate, may have an adverse effect on our business.

The U.K. Financial Conduct Authority, which regulates LIBOR, has announced that, after specified dates, LIBOR settings will cease to be provided by any administrator or will no longer be representative of the underlying market and economic reality that such settings are intended to measure. Accordingly, many existing LIBOR obligations will transition to another benchmark after June 30, 2023. Regulators have also stated that, for certain purposes, market participants should transition away from U.S. dollar LIBOR sooner.

It is unclear whether new methods of calculating LIBOR will be established or if alternative rates or benchmarks will be adopted. Our credit agreement and all our accounts receivable sales agreements utilize LIBOR as a benchmark for calculating the applicable interest rate. Changes in the method of calculating LIBOR, the elimination of LIBOR or the replacement of LIBOR with an alternative rate or benchmark may require us to renegotiate or amend these facilities, loans and programs, which may adversely affect interest rates and result in higher borrowing costs. This could materially and adversely affect our results of operations, cash flows and liquidity. We cannot predict the effect of the potential changes to or elimination of LIBOR or the establishment and use of alternative rates or benchmarks and the corresponding effects upon our cost of capital.

Dorman’s Executive Chairman and his family members own a significant portion of the Company.

As of February 17, 2022, Steven L. Berman, our Executive Chairman, and his family members beneficially owned approximately 17% of the Company’s outstanding common stock. As such, Mr. Berman and his family members can influence matters requiring approval of shareholders, including the election of the Board of Directors and the approval of significant transactions. Such concentration of ownership may have the effect of delaying, preventing or deterring a change in control of the Company, could deprive shareholders of an opportunity to receive a premium for their common stock as part of a sale of the Company and might ultimately affect the market price of our common stock. Moreover, sales of substantial amounts of the shares beneficially owned by Mr. Berman and his family members, including shares held in family trusts and foundations, or the perception that such sales could occur, may lower the prevailing market price of our common stock.

General Risk Factors

Unfavorable economic conditions may adversely affect our business.

Adverse changes in economic conditions, including inflation, recession, increases in fuel prices, decreased transportation capacity, tariffs, labor shortages and unemployment levels, availability of consumer credit, taxation or instability in the financial markets or credit markets may either lower demand for our products or increase our operational costs, or both. Such conditions may also materially impact our customers, suppliers and other parties with whom we do business. Our revenue will be adversely affected if demand for our products declines. The impact of unfavorable economic conditions may also impair the ability of our customers to pay for products they have purchased. As a result, reserves for doubtful accounts and write-offs of accounts receivables may increase and failure to collect a significant portion of amounts due on those receivables could have a material adverse effect upon our business, financial condition and results of operations.

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Our operations, revenues and operating results, and the operations of our third-party manufacturers, suppliers, warehouse and distribution providers, and customers, may be subject to quarter over quarter fluctuations and disruptions from events beyond our or their control.

Our operations, revenues and operating results, as well as the operations of our third-party manufacturers, suppliers, warehouse and distribution providers, and customers, may be subject to quarter over quarter fluctuations and disruptions from a variety of causes outside of our or their control, including work stoppages, market volatility, fuel and transportation prices, acts of war, terrorism, cyber incidents, pandemics, power outages, fire, earthquake, flooding, changes in weather patterns, weather or seasonal fluctuations or other climate-based changes, including hurricanes or tornadoes, or other natural disasters. If a major disruption were to occur at our operations or the operations of our third-party manufacturers, suppliers, warehouse and distribution providers, or customers, it could result in harm to people or the natural environment, delays in shipments of products to customers or suspension of operations. In addition, such events could result in our inability to fill orders on a timely basis or at all and result in penalties owed to our customers and the loss of net sales. Any of the foregoing could have a material adverse effect upon our business, financial condition and results of operations.

We rely extensively on computer systems to manage inventory, process transactions and timely provide products to our customers. These systems are subject to damage or interruption from power outages, telecommunications failures, computer viruses, security breaches, cyber-attacks or other catastrophic events. If these systems are damaged or fail to function properly, we may experience loss of critical data and interruptions or delays in our ability to manage inventories or process customer transactions. Such a disruption to these systems could negatively impact revenue and could have a material adverse effect upon our business, financial condition and results of operations.

Unfavorable results of legal proceedings could materially adversely affect us.

We are subject to various legal proceedings and claims that arise out of the ordinary course of our business, such as those involving contracts, employment matters, competitive practices, intellectual property infringement and product liability claims. Legal proceedings and claims and associated internal investigations may be time-consuming and expensive to prosecute, defend or conduct. This may be true whether they are with or without merit and whether they are covered by insurance or not. They also may divert management’s attention and other resources; inhibit our ability to sell our products; result in adverse judgments for damages, injunctive relief, penalties and fines; and negatively affect our reputation, business, financial condition and results of operations. There can be no assurance regarding the outcome of current or future legal proceedings, claims or investigations.

The market price of our common stock may be volatile and could expose us to securities class action litigation.

The stock market and the price of our common stock may be subject to wide fluctuations based upon general economic and market conditions. The market price for our common stock also may be affected by our ability to meet analysts’ expectations. Failure to meet such expectations, even slightly, could have an adverse effect on the market price of our common stock. In addition, stock market volatility has had a significant effect on the market prices of securities issued by many companies for reasons unrelated to the operating performance of these companies. Downturns in the stock market may cause the price of our common stock to decline.

Following periods of volatility in the market price of a company’s securities, securities class action litigation has often been instituted against such companies. If similar litigation were instituted against us, it could result in substantial costs and a diversion of our management’s attention and resources, which could have a material adverse effect upon our business, financial condition and results of operations.

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Losing the services of our executive officers or other highly qualified and experienced employees or failing to attract and retain any of such officers or employees could adversely affect our business.

Our future success depends upon the continued contributions of our executive officers and senior management, many of whom have numerous years of experience and would be extremely difficult to replace. We must also attract and retain experienced and highly skilled engineering, sales and marketing, finance, logistics, information technology and operations personnel. Although we periodically conduct compensation benchmarking and surveys, competition for qualified personnel is often intense, our compensation programs may not be adequately designed, and we may not be successful in hiring and retaining these people. In addition, we have seen increased demand and competition for qualified workers in our manufacturing and distribution centers, where we have experienced labor shortages resulting from COVID-19 and other economic factors. To the extent such increase in demand or competitive conditions drives higher wages for those roles, our ability to attract talent and maintain a competitive cost structure may be challenged. If we lose the services of our key employees, cannot attract and retain other qualified personnel or cannot maintain a competitive cost structure as a result of any of the foregoing, it could have a material adverse effect upon our business, financial condition and results of operations.

Our growth may be impacted by acquisitions. We may not be able to identify suitable acquisition candidates, complete acquisitions or integrate acquisitions successfully.

Our future growth is likely to depend to some degree on our ability to acquire and successfully integrate new businesses. We may not be able to identify suitable acquisition candidates, complete acquisitions, or integrate acquisitions, such as Dayton Parts, successfully. We may seek additional acquisition opportunities, both to further diversify our businesses and to penetrate or expand important product offerings, geographies or markets. There are no assurances, however, that we will be able to successfully identify suitable candidates, negotiate appropriate terms, obtain financing on acceptable terms, complete proposed acquisitions, successfully integrate acquired businesses, or expand into new geographies or markets. Once acquired, operations may not achieve anticipated levels of revenues or profitability. Acquisitions involve risks, including difficulties in the integration of the operations, technologies, services and products of the acquired companies and the diversion of management's attention from other business concerns. Although our management will endeavor to evaluate the risks inherent in any particular transaction, there are no assurances that we will properly ascertain all such risks. Difficulties encountered with acquisitions could have a material adverse effect upon our business, financial condition and results of operations.

Changes in tax laws or exposure to additional income tax liabilities could have a material adverse effect upon our business, financial condition and results of operations.

We are subject to income taxes, as well as non-income-based taxes, at the federal, state and local levels. We are subject to tax audits in various jurisdictions. Tax authorities may disagree with certain positions we have taken and assess additional taxes. We regularly assess the likely outcomes of these audits in order to determine the appropriateness of our tax provision. However, there can be no assurance that we will accurately predict the outcomes of these audits, and the actual outcomes of these audits could have a material adverse effect upon our business, financial condition and results of operations. Additionally, changes in tax laws or tax rulings could materially impact our effective tax rate.

Global climate change and related regulations could negatively affect our business.

The effects of climate change, such as extreme weather conditions, create financial risks to our business. For example, the demand for our products may be affected by unseasonable weather conditions. The effects of climate change could also disrupt our operations by impacting the availability and cost of materials needed for manufacturing and could increase insurance and other operating costs. We could also face indirect financial risks passed through the supply chain and disruptions that could result in increased prices for our products and the resources needed to produce them.

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Climate change is continuing to receive ever increasing attention worldwide. Many scientists, legislators and others attribute climate change to increased levels of greenhouse gases, including carbon dioxide, which could lead to additional legislative and regulatory efforts to limit greenhouse gas emissions. For example, new federal or state restrictions on emissions of carbon dioxide that may be imposed on vehicles and automobile fuels could adversely affect demand for vehicles, annual miles driven or the products we sell or lead to changes in automotive technology. Compliance with any new or more stringent laws or regulations, or stricter interpretations of existing laws, could require increased capital expenditures to improve our product portfolio to meet such new laws, regulations and standards. While we have been committed to continuous improvements to our product portfolio to meet and exceed anticipated regulatory standard levels, there can be no assurance that our commitments will be successful, that our products will be accepted by the market, that proposed regulation or deregulation will not have a negative competitive impact or that economic returns will reflect our investments in new product development.

We could be adversely affected by violations of the U.S. Foreign Corrupt Practices Act and similar anti-bribery laws around the world.

The U.S. Foreign Corrupt Practices Act (the "FCPA") and similar anti-bribery laws in other jurisdictions generally prohibit companies and their intermediaries from making improper payments to government officials or other persons for the purpose of obtaining or retaining business. Recent years have seen a substantial increase in anti-bribery law enforcement activity, with more frequent and aggressive investigations and enforcement proceedings by both U.S. and non-U.S. regulators, and increases in criminal and civil proceedings brought against companies and individuals. Our policies mandate compliance with these anti-bribery laws. We operate in parts of the world that are recognized as having governmental and commercial corruption and local customs and practices that can be inconsistent with anti-bribery laws. We cannot assure you that our internal control policies and procedures will always protect us from reckless or criminal acts committed by our employees or third-party intermediaries. In the event that we believe or have reason to believe that our employees or agents have or may have violated applicable anti-corruption laws, or if we are subject to allegations of any such violations, we may be required to investigate or have outside counsel investigate the relevant facts and circumstances, which can be expensive and require significant time and attention from senior management. Violations of these laws may result in criminal or civil sanctions, which could disrupt our business and result in a material adverse effect on our reputation, business, financial condition and results of operations. In addition, we could be subject to commercial impacts such as lost revenue from customers who decline to do business with us as a result of such compliance matters, or we could be subject to lawsuits brought by private litigants, each of which could have a material adverse effect on our reputation, business, financial condition, and results of operations.

Our products are subject to import and export controls in jurisdictions in which we distribute or sell our products. Import and export controls and economic sanctions laws and regulations include restrictions and prohibitions on the sale or supply of certain products and on our transfer of parts, components, and related technical information and know-how to certain countries, regions, governments, persons and entities.

Various countries regulate the importation of certain products through import permitting and licensing requirements and have enacted laws that could limit our ability to distribute our products. The exportation, re-exportation, transfers within foreign countries and importation of our products, including by our suppliers and vendors, must comply with these laws and regulations, and any violations may result in reputational harm, government investigations and penalties, and a denial or curtailment of importing or exporting activities. Complying with export control and sanctions laws for a particular sale may be time consuming, may increase our costs, and may result in the delay or loss of sales opportunities. If we are found to be in violation of U.S. sanctions or export control laws, or similar laws in other jurisdictions, we and the individuals working for us could incur substantial fines and penalties. Changes in export, sanctions or import laws or regulations may delay the introduction and sale of our products in the U.S. and international markets, require us to spend resources to seek necessary government authorizations or to

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develop different versions of our products, or, in some cases, prevent the export or import of our products to certain countries, regions, governments, persons or entities, which could adversely affect our business, financial condition and operating results.

ITEM 1B. Unresolved Staff Comments.

None

ITEM 2. Properties.

Facilities

As of December 25, 2021, we had 28 warehouse and office facilities located throughout the United States, Canada, China, Taiwan and India. Five of these facilities are owned and the remainder are leased. Our principal facilities are as follows:

Location	Description	Size			Ownership
Portland, TN	Warehouse and office		997,310	sq. ft.	Leased
Warsaw, KY	Warehouse and office		710,500	sq. ft.	Owned
Colmar, PA	Corporate headquarters Warehouse and office		342,000	sq. ft.	Leased	(1)
Shiremanstown, PA	Warehouse and office		318,872	sq. ft.	Leased
Durant, OK	Warehouse and office		208,000	sq. ft.	Owned
Lewisberry, PA	Warehouse and office		170,500	sq. ft.	Leased	(2)
Florence, KY	Warehouse		101,250	sq. ft.	Leased
Harrisburg, PA	Manufacturing Facility		101,132	sq. ft.	Owned
Lewisville, TX	Warehouse and office		101,029	sq. ft.	Leased
Franklin, KY	Warehouse		100,000	sq. ft.	Leased
Louisiana, MO	Warehouse and office		90,000	sq. ft.	Owned
Las Vegas, NV	Warehouse and office		89,728	sq. ft.	Leased
Reno, NV	Warehouse and office		54,354	sq. ft.	Leased
Kankakee, IL	Manufacturing Facility		53,574	sq. ft.	Owned
Sanford, NC	Warehouse and office		52,000	sq. ft.	Leased
Edmonton, AB	Warehouse and office		48,400	sq. ft.	Leased
St-Leonard, QC	Warehouse		47,747	sq. ft.	Leased
Mississauga, ON	Warehouse and office		43,524	sq. ft.	Leased
Virginia Beach, VA	Warehouse and office		20,000	sq. ft.	Leased
Surrey, BC	Manufacturing Facility		19,201	sq. ft.	Leased
Shanghai, China	Office		16,000	sq. ft.	Leased
Springfield, MO	Warehouse and office		10,000	sq. ft.	Leased
Magnolia, TX	Warehouse and office		9,600	sq. ft.	Leased

(1) We lease the Colmar facility from a partnership of which our Executive Chairman, Steven L. Berman, and certain of his family members are owners. Under this lease agreement, we paid rent of $4.87 per square foot ($1.7 million per year) in fiscal 2021. The rent payment will be adjusted on January 1 of each year to reflect annual changes in the Consumer Price Index for All Urban Consumers - U.S. City Average, All Items. This lease was renewed during November 2016, effective as of January 1, 2018, and will expire on December 31, 2022.

(2) We lease one of our two Lewisberry facilities (consisting of approximately 142,500 square feet) from a limited liability company of which our Executive Chairman, Steven L. Berman, and certain of his family members are owners. Under this lease agreement, we paid rent of $4.68 per square foot ($0.7 million per year) in fiscal 2021. The rent payable will be increased by 3% on July 1^st of each year. This lease commenced in September 2020 and will expire on December 31, 2027.

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ITEM 3. Legal Proceedings.

The information set forth under the heading “Other Contingencies” appearing in Note 10. “Commitments and Contingencies,” to the Notes to Consolidated Financial Statements contained in PART IV, ITEM 15 of this report is incorporated herein by reference.

ITEM 4. Mine Safety Disclosures.

Not Applicable

ITEM 4.1. Information about Our Executive Officers.

The following table sets forth certain information with respect to our executive officers as of February 22, 2022:

Name	Age	Position with the Company
Steven L. Berman	62	Executive Chairman
Kevin M. Olsen	50	President and Chief Executive Officer
Joseph P. Braun	47	Senior Vice President, General Counsel and Secretary
Jeffrey L. Darby	54	Senior Vice President, Sales and Marketing
David M. Hession	53	Senior Vice President, Chief Financial Officer and Treasurer
Michael B. Kealey	47	Executive Vice President, Commercial

Steven L. Berman became the Executive Chairman of the Company in September 2015. Additionally, Mr. Berman has served as a director of the Company since its inception in 1978. From January 2011 to September 2015, Mr. Berman served as Chairman of the Board and Chief Executive Officer of the Company and from October 2007 to January 2011, Mr. Berman served as President of the Company. Prior to October 2007, Mr. Berman served as Executive Vice President of the Company.

Kevin M. Olsen joined the Company in July 2016 as Senior Vice President and Chief Financial Officer. He became Executive Vice President, Chief Financial Officer in June 2017, President and Chief Operating Officer in August 2018 and President and Chief Executive Officer in January 2019. Prior to joining the Company, Mr. Olsen was Chief Financial Officer of Colfax Fluid Handling, a division of Colfax Corporation, a diversified global manufacturing and engineering company that provides gas and fluid-handling and fabrication technology products and services to commercial and governmental customers around the world, from January 2013 through June 2016. Prior to joining Colfax, he served in progressively responsible management roles at the Forged Products Aero Turbine Division of Precision Castparts Corp, Crane Energy Flow Solutions, a division of Crane Co., Netshape Technologies, Inc., and Danaher Corporation. Prior thereto, Mr. Olsen performed public accounting work at PricewaterhouseCoopers LLP.

Joseph P. Braun joined the Company in April 2019 as Senior Vice President and General Counsel, and he was appointed Corporate Secretary in May 2019. Prior to joining the Company, Mr. Braun served as Chief Legal Officer and Corporate Secretary of Avantor, Inc., a leading, global provider of mission-critical products and services to customers in the life sciences and advanced technologies and applied materials industries. Prior to joining Avantor, he worked at Tyco International plc (now known as Johnson Controls International plc), a leading global provider of security, fire detection and suppression, and life safety products and services, where he served in positions of increasing responsibility, including, most recently, as Vice President, Mergers & Acquisitions. Mr. Braun began his legal career in private practice at various law firms, where he advised public and private companies on mergers and acquisitions and securities and corporate governance matters.

Jeffrey L. Darby joined the Company in November 1998 as a National Account Manager. He became Senior Vice President, Sales and Marketing in February 2011. He previously held the positions of Group Vice President from 2008 to 2010 and Vice President of Sales – Traditional and Key Accounts from 2006 to 2008. Prior to joining the Company, Mr. Darby worked for Federal Mogul Corporation/Moog

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Automotive, an automotive parts supplier, beginning in 1990 and held positions in sales and marketing management.

David M. Hession joined the Company in February 2019 and was appointed to serve as the Company’s Senior Vice President and Chief Financial Officer effective March 2019. Mr. Hession was also appointed Treasurer in May 2019. Mr. Hession was Vice President, Chief Financial Officer of Johnsonville, LLC, a privately held manufacturer of sausage and other protein products, from May 2013 to January 2019. Prior to that time, Mr. Hession worked at McCormick & Company, Inc., a global leader in the manufacture, marketing and distribution of spices, seasonings and flavors to the entire food industry, where he served in various positions of increasing responsibility including, most recently, as Vice President Finance & Administration. Mr. Hession also previously held positions with Tradeout, Inc., a business-to-business Internet exchange for surplus inventory and fixed assets, and Xylum Corporation, a development stage medical device manufacturer, and he performed management consulting work for Ernst & Young, LLP and Peterson Consulting LP.

Michael B. Kealey joined the Company in November 2002, as a Product Manager. He became Executive Vice President, Commercial in June 2017. He previously held the positions of Senior Vice President, Product from February 2011 through May 2017, Vice President – Product from January 2007 through January 2011, and Director – Product Management from April 2003 through December 2006. Prior to joining the Company, Mr. Kealey was employed by Eastern Warehouse Distributors, Inc., a distributor of automotive replacement parts, most recently as Vice President – Purchasing.

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PART II

ITEM 5. Market for Registrant's Common Equity, Related Shareholder Matters and Issuer Purchases of Equity Securities.

Our shares of common stock are traded publicly on the NASDAQ Global Select Market under the ticker symbol “DORM”. At February 17, 2022, there were 210 holders of record of our common stock.

We do not anticipate paying cash dividends on our common stock in the foreseeable future. Any payment of dividends in the future will be at the discretion of our board of directors and will depend upon, among other things, our earnings, financial condition, capital requirements, level of indebtedness, provisions of our existing credit agreement and other factors that our board of directors deems relevant.

For the information regarding our equity compensation plans, see PART III ITEM 12, “Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters.”

Stock Performance Graph. Below is a line graph comparing the cumulative total shareholder return for our common stock with the cumulative total shareholder return for the NASDAQ US Benchmark Auto Parts TR index and the NASDAQ Composite Market Index for the period from December 31, 2016 to December 25, 2021. The NASDAQ US Benchmark Auto Parts TR index replaces the Morningstar Auto Parts Index used previously by the Company in this analysis, as Morningstar has changed its methodology for its index.

The NASDAQ US Benchmark Auto Parts TR index is comprised of 27 public companies and the information was furnished by Zacks Investment Research, Inc. The graph assumes $100 invested on December 31, 2016 in our common stock and each of the indices, and that dividends were reinvested when and as paid. In calculating the cumulative total shareholder returns, the companies included are weighted according to the stock market capitalization of such companies. The Morningstar Auto Parts Index is comprised of 140 public companies and the information was furnished by Morningstar, Inc.

The stock price performance shown in the graph is not necessarily indicative of future price performance.

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The performance graph and the information set forth therein shall not be deemed to be filed for purposes of Section 18 of the Exchange Act and shall not be deemed to be incorporated by reference in any filing made by us with the U.S. Securities and Exchange Commission, except as shall be expressly set forth by specific reference in such a filing.

Stock Repurchases

During the three months ended December 25, 2021, we purchased shares of our common stock as follows:

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (4)		Maximum Number (or Approximate Dollar Value) of Shares that May Yet Be Purchased Under the Plans or Programs (4)
September 26, 2021 through October 23, 2021 (1)		34,661	$	98.20		32,000	$	149,849,852
October 24, 2021 through November 20, 2021 (2)		21,945	$	107.45		19,471	$	147,745,660
November 21, 2021 through December 25, 2021 (3)		25,586	$	111.04		19,650	$	145,566,100
Total		82,192				71,121	$	145,566,100

(1) Includes 121 shares of our common stock withheld from participants for income tax withholding purposes in connection with the vesting of restricted stock awards (“RSAs”) during the period. The RSAs were granted to participants in prior periods pursuant to our 2008 Stock Option and Stock Incentive Plan (the “2008 Plan”). Also includes 2,540 shares purchased from the Dorman Products, Inc. 401(k) Plan and Trust (as described in Note 12, Capital Stock, to the Notes to Consolidated Financial Statements included in this Annual Report on Form 10-K “401(k) Plan”).

(2) Includes 148 shares of our common stock withheld from participants for income tax withholding purposes in connection with the vesting of RSAs during the period. The RSAs were granted to participants in prior periods pursuant to our 2018 Stock Option and Stock Incentive Plan (the “2018 Plan”). Also includes 2,326 shares purchased from the 401(k) Plan.

(3) Includes 3,918 shares of our common stock withheld from participants for income tax withholding purposes in connection with the vesting of RSAs during the period. The RSAs were granted to participants in prior periods pursuant to the 2008 Plan and 2018 Plan. Also includes 2,018 shares purchased from the 401(k) Plan.

(4) On December 12, 2013 we announced that our Board of Directors authorized a share repurchase program, authorizing the repurchase of up to $10 million of our outstanding common stock by the end of 2014. Through several expansions and extensions, our Board of Directors has expanded the program to $500 million and extended the program through December 31, 2022. Under this program, share repurchases may be made from time to time depending on market conditions, share price, share availability and other factors at our discretion.

ITEM 6. [Reserved]

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ITEM 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

“Management’s Discussion and Analysis of Financial Condition and Results of Operations” should be read in conjunction with the Consolidated Financial Statements and related notes thereto included in PART II, ITEM 8 of this Annual Report on Form 10-K. The matters discussed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contain certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve significant risks and uncertainties. See the “Statement Regarding Forward-Looking Statements” above and PART I, ITEM 1A, “Risk Factors” in this Annual Report on Form 10-K for additional information regarding forward-looking statements and the factors that could cause actual results to differ materially from those anticipated in the forward-looking statements. In ITEM 7, we discuss fiscal 2021 and 2020 results and comparisons of fiscal 2021 results to fiscal 2020 results. Discussions of fiscal 2019 results and comparisons of fiscal 2020 results to fiscal 2019 results can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in PART II, ITEM 7 of the Company’s Annual Report on Form 10-K for the fiscal year ended December 26, 2020.

Overview

We are one of the leading suppliers of replacement parts and fasteners for passenger cars and light-, medium-, and heavy-duty trucks in the automotive aftermarket industry. As of December 25, 2021, we marketed approximately 118,000 distinct parts compared to approximately 81,000 as of December 26, 2020, many of which we designed and engineered. This number excludes private label stock keeping units and other variations in how we market, package and distribute our products, includes distinct parts of acquired companies and reflects distinct parts that have been discontinued at the end of their lifecycle. Our products are sold under our various brand names, under our customers’ private label brands or in bulk. We are one of the leading aftermarket suppliers of OE “dealer exclusive” parts. OE “dealer exclusive” parts are those parts that were traditionally available to consumers only from OE manufacturers or salvage yards. These parts include, among other parts, leaf springs, intake manifolds, exhaust manifolds, window regulators, radiator fan assemblies, tire pressure monitor sensors, exhaust gas recirculation (EGR) coolers, and complex electronics modules.

We generate the majority of our net sales from customers in the North American automotive aftermarket industry, primarily in the United States. Our products are sold primarily through automotive aftermarket retailers, including through their on-line platforms; national, regional and local warehouse distributors and specialty markets; and salvage yards. We also distribute automotive aftermarket parts outside the United States, with sales primarily into Canada and Mexico, and to a lesser extent, Europe, the Middle East and Australia.

We may experience significant fluctuations from quarter to quarter in our results of operations due to the timing of orders placed by our customers as well as our ability and the ability of our suppliers to deliver products ordered by our customers. The introduction of new products and product lines to customers, as well as business acquisitions, may also cause significant fluctuations from quarter to quarter.

We operate on a 52-53-week period ended on the last Saturday of the calendar year. The fiscal years ended December 25, 2021 (“fiscal 2021”), December 26, 2020 (“fiscal 2020”) and December 28, 2019 (“fiscal 2019”) were 52-week periods.

Business Performance Summary

Net sales increased 23% to $1,345.2 million in fiscal 2021 from $1,092.7 million in fiscal 2020, while net income increased 23% to $131.5 million in fiscal 2021 from $106.9 million in fiscal 2020. Additionally, in fiscal 2021 we generated cash flows from operations of $100.3 million and repurchased 605,628 common shares under our share repurchase program for $61.6 million.

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Impacts of COVID-19

In late March 2020, we began experiencing softening customer demand as a result of government-imposed restrictions designed to slow the spread of COVID-19. While customer orders dropped significantly early in the second quarter of 2020 due to government-imposed restrictions, we saw a rapid recovery as the second quarter progressed with June orders up above June 2019 levels.

While COVID-19 did not adversely affect demand for our products for the year ended December 25, 2021, during the period we did experience pandemic-related pressures in the global supply network that caused logistical issues, including higher freight costs, supplier lead time delays of products, and inflation with respect to materials and labor costs, which impacted our results. We currently expect those pressures to continue to exist into fiscal 2022. As countries continue to combat COVID-19, and as government-imposed regulations regarding, among other things, COVID-19 testing, vaccine mandates and related workplace restrictions change around the world, there is still a risk that the pandemic may impact the overall demand environment as well as our ability to maintain staffing at our facilities, to source parts and other materials to meet demand levels, to maintain inventory levels and to fulfill contractual requirements. We will continue to closely monitor updates regarding the spread of COVID-19 and its variants, the distribution of vaccines developed to combat COVID-19, and applicable vaccine mandates, and we will adjust our operations according to guidelines from local, state and federal officials. In light of the foregoing, we may take actions that alter our business operations or that we determine are in the best interests of our employees, customers, suppliers and shareholders.

New Product Development

New product development is an important success factor for us and traditionally has been our primary vehicle for growth. We have made incremental investments to increase our new product development efforts to grow our business and strengthen our relationships with our customers. The investments primarily have been in the form of increased product development resources, increased customer and end-user awareness programs, and customer service improvements. These investments historically have enabled us to provide an expanding array of new product offerings and grow revenues at levels that generally have exceeded market growth rates.

In fiscal 2021, we introduced 4,315 new distinct parts to our customers and end-users, including 990 “New-to-the-Aftermarket” parts. Please see ITEM 1, “Business – Product Development” for a year-over-year comparison of new product introductions.

One area of focus has been our complex electronics program, which capitalizes on the growing number of electronic components being utilized on today’s OE platforms. New vehicles contain an average of approximately 35 electronic modules, with some high-end luxury vehicles containing over 100 modules. Our complex electronics products are designed and developed in-house and tested to help ensure consistent performance, and our product portfolio is focused on further developing our leadership position in the category.

Another area of focus has been on Dorman^® HD Solutions™, a line of products we market for the medium- and heavy-duty truck sector of the automotive aftermarket industry. We believe that this sector provides many of the same opportunities for growth that the passenger car and light truck sector of the automotive aftermarket industry has provided us. Through Dorman^® HD Solutions™, we specialize in what formerly were “dealer exclusive” parts similar to how we have approached the passenger car and light-duty truck sector. During fiscal 2021, we introduced 87 distinct parts in this product line. We expect to continue to invest in the medium- and heavy-duty product category, as evidenced by our acquisition of Dayton Parts in fiscal 2021.

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Acquisitions

Our growth is also impacted by acquisitions. For example, on August 10, 2021, we acquired Dayton Parts, a manufacturer of chassis and other parts designed to serve the heavy-duty vehicle sector of the aftermarket. See Note 2, Business Acquisitions and Investments under Notes to Consolidated Financial Statements for additional information. We may acquire businesses in the future to supplement our financial growth, increase our customer base, add to our distribution capabilities or enhance our product development resources, among other reasons.

Economic Factors

The Company’s financial results are also impacted by various economic and industry factors, including, but not limited to the number, age and condition of vehicles in operation at any one time, and miles driven by those vehicles.

Vehicles in Operation

The Company’s products are primarily purchased and installed on a subsegment of the passenger and light duty vehicles in operation in the United States (“VIO”), specifically weighted towards vehicles aged 8 to 13 years old. Each year, the United States seasonally adjusted annual rate (“US SAAR”) of new vehicles purchased adds a new year to the VIO. According to data from the Auto Care Association (“Auto Care”), the US SAAR experienced a decline from 2008 to 2011 as consumers purchased fewer new vehicles as a result of the Great Recession of 2008. We believe that the declining US SAAR during that period resulted in a follow-on decline in our primary VIO subsegment (8 to 13-year-old vehicles) commencing in 2016. However, following 2011 and the impact of the Great Recession of 2008, U.S. consumers began to increase their purchases of new vehicles which over time caused the US SAAR to recover and return to more historical levels. Consequently, subject to any potential impacts from COVID-19, we expect the VIO for vehicles aged 8 to 13 years old to continue to recover over the next several years.

In addition, we believe that vehicle owners generally are operating their current vehicles longer than they did several years ago, performing necessary repairs and maintenance to keep those vehicles well maintained. We believe this trend has resulted in an increase in VIO. According to data published by Polk, a division of IHS Automotive, the average age of VIO increased to 12.2 years as of October 2021 from 12.0 years as of October 2020 despite increasing new car sales. Additionally, while the number of VIO in the United States increased 4% in 2021 to 291.9 million from 279.8 million in 2020, the number of VIO that are 11 years old or older decreased from 60% in 2020 to 57% in 2021.

Miles Driven

The number of miles driven is another important statistic that impacts our business. According the U.S. Department of Transportation, the number of miles driven through October 2021 increased 11.2% year over year. Generally, as vehicles are driven more miles, the more likely it is that parts will fail and there will be increased demand for replacement parts, including our parts.

Brand Protection

We operate in a highly competitive market. As a result, we are continuously evaluating our approach to brand, pricing and terms to our different customers and channels. For example, in the third quarter of 2019, we modified our brand protection policy, which is designed to ensure that certain products bearing the Dorman name are not advertised below certain approved pricing levels.

Discounts, Allowances, and Incentives

We offer a variety of customer discounts, rebates, defective and slow-moving product returns and other incentives. We may offer cash discounts for paying invoices in accordance with the specified discount terms of the invoice. In addition, we may offer pricing discounts based on volume purchased from us or other pricing discounts related to programs under a customer’s agreement. These discounts can be in the

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form of “off-invoice” discounts and are immediately deducted from sales at the time of sale. For those customers that choose to receive a payment on a quarterly or annual basis instead of “off-invoice,” we accrue for such payments as the related sales are made and reduce sales accordingly. Finally, rebates and discounts are provided to customers to support promotional activities such as advertising and sales force allowances.

Our customers, particularly our larger retail customers, regularly seek more favorable pricing and product return provisions, and extended payment terms when negotiating with us. We attempt to avoid or minimize these concessions as much as possible, but we have granted pricing concessions, indemnification rights, extended customer payment terms, and allowed a higher level of product returns in certain cases. These concessions impact net sales as well as our profit levels and may require additional capital to finance the business. We expect our customers to continue to exert pressure on our margins.

New Customer Acquisition Costs

New customer acquisition costs refer to arrangements under which we incur change-over costs to induce a customer to switch from a competitor’s brand. Change-over costs include the costs related to removing the new customer’s inventory and replacing it with our inventory, which is commonly referred to as a stock lift. New customer acquisition costs are recorded as a reduction to revenue when incurred.

Product Warranty and Overstock Returns

Many of our products carry a lifetime limited warranty, which generally covers defects in materials or workmanship and failure to meet specifications. In addition to warranty returns, we also may permit our customers to return new, undamaged products to us within customer-specific limits if they have overstocked their inventories. At the time products are sold, we accrue a liability for product warranties and overstock returns as a percentage of sales based upon estimates established using historical information on the nature, frequency and average cost of the claim and the probability of the customer return. Significant judgments and estimates must be made and used in connection with establishing the sales returns and other allowances in any accounting period. Revision to these estimates is made when necessary, based upon changes in these factors. We regularly study trends of such claims.

Foreign Currency

Our products are purchased from suppliers in the United States and a variety of non-U.S. countries. The products generally are purchased through purchase orders with the purchase price specified in U.S. dollars. Accordingly, we generally do not have exposure to fluctuations in the relationship between the U.S. dollar and various foreign currencies between the time of execution of the purchase order and payment for the product.

To the extent that the U.S. dollar changes in value relative to those foreign currencies in the future, the prices charged by our suppliers for products under new purchase orders may change in equivalent U.S. dollars. The largest portion of our overseas purchases comes from China. The Chinese yuan to U.S. dollar exchange rate has fluctuated over the past several years. Any future changes in the value of the Chinese yuan relative to the U.S. dollar may result in a change in the cost of products that we purchase from China. However, the cost of the products we procure is also affected by other factors including raw material availability, labor cost, and transportation costs.

Since our consolidated financial statements are denominated in U.S. dollars, the assets, liabilities, net sales, and expenses which are denominated in currencies other than the U.S. dollar must be converted into U.S. dollars using exchange rates for the current period. As a result, fluctuations in foreign currency exchange rates may impact our financial results.

Impact of Labor Market and Inflationary Costs

We have experienced broad-based inflationary impacts during the year ended December 25, 2021, due primarily to global transportation and logistics constraints, which have resulted in significantly higher

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transportation costs; tariffs; material costs; and wage inflation from an increasingly competitive labor market. We expect increased freight, higher labor costs and material inflation costs to continue to negatively impact our results through fiscal 2022. We attempt to offset inflationary pressures with cost saving initiatives, price increases to customers and the use of alternative suppliers. Although we have implemented pass-through price increases to offset inflationary cost impacts, the price increases have often been implemented after we have experienced higher costs resulting in a lag effect to the full recovery of these costs. Furthermore, pricing increases that we implemented to pass through the increased costs had no added profit dollars and consequently resulted in lower gross and operating margin percentages. There can be no assurance that we will be successful in implementing pricing increases in the future to recover increased inflationary costs.

Impact of Tariffs

In the third quarter of 2018, the Office of the United States Trade Representative (USTR) began imposing additional tariffs on products imported from China, including many of our products, ranging from 7.5% to 25%. The tariffs enacted to date increase the cost of many of the products that are manufactured for us in China. We have taken several actions to mitigate the impact of the tariffs including, but not limited to, price increases to our customers and cost concessions from our suppliers. We expect to continue mitigating the impact of tariffs primarily through selling price increases to offset the higher tariffs incurred. Tariffs are not expected to have a material impact on our net income but are expected to increase net sales and lower our gross and operating profit margins to the extent that these additional costs are passed through to customers.

In January 2020, the USTR granted temporary tariff relief for certain categories of products being imported from China. The tariff relief granted by the USTR expired on most categories of products being imported from China at the end of 2020. However, the USTR has publicly stated that it is considering reinstating temporary tariff relief on a subset of the previously exempt categories of products imported from China after October 12, 2021 following its review of public comments submitted to the USTR prior to December 1, 2021. As of the date of this filing, the USTR has not reinstated exemptions from tariffs on the subset of previously exempt categories of products imported from China. We expect that we will reverse tariff-related price increases previously passed along to our customers and cost concessions previously received from our suppliers as tariffs are reduced or tariff relief is granted.

Results of Operations

The following table sets forth, for the periods indicated, the dollar value and percentage of net sales represented by certain items in our Consolidated Statements of Operations:

	For the Fiscal Year Ended
(in thousands, except percentage data)	December 25, 2021					December 26, 2020
Net sales	$	1,345,249		100.0	%	$	1,092,748		100.0	%
Cost of goods sold		882,333		65.6	%		709,632		64.9	%
Gross profit		462,916		34.4	%		383,116		35.1	%
Selling, general and administrative expenses		291,365		21.7	%		249,743		22.9	%
Income from operations		171,551		12.8	%		133,373		12.2	%
Interest expense, net		2,162		0.2	%		599		0.1	%
Other income, net		(377	)	0.0	%		(2,962	)	-0.3	%
Income before income taxes		169,766		12.6	%		135,736		12.4	%
Provision for income taxes		38,234		2.8	%		28,866		2.6	%
Net income	$	131,532		9.8	%	$	106,870		9.8	%

* Percentage of sales information may not add due to rounding

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Fiscal Year Ended December 25, 2021 Compared to Fiscal Year Ended December 26, 2020

Net sales increased 23% to $1,345.2 million in fiscal 2021 from $1,092.7 million in fiscal 2020. The increase in net sales reflected the addition of Dayton Parts as well as robust customer demand across all our product channels. Year-over-year net sales growth excluding Dayton Parts for fiscal 2021 was 16%. The absence of the government imposed shut-downs that negatively impacted fiscal 2020 was also a significant contributor to the year-over-year growth.

Gross profit margin was 34.4% of net sales in fiscal 2021 compared to 35.1% of net sales in fiscal 2020. Gross margin contraction was driven by broad-based inflationary impacts due to global transportation and logistics constraints and higher costs from fair value adjustments to inventory recorded in connection with the Dayton Parts acquisition in fiscal 2021. These factors were partially offset by cost saving initiatives and price increases. Additionally, we benefitted from the absence of out-of-pocket costs incurred due to the COVID-19 pandemic in fiscal 2020.

Selling, general and administrative expenses were $291.4 million, or 21.7% of net sales, in fiscal 2021 compared to $249.7 million, or 22.9% of net sales, in fiscal 2020. The decrease in SG&A as a percentage of net sales was due to the operating leverage from the $252.5 million increase in net sales in fiscal 2021 as compared to fiscal 2020. Additionally, we saw benefits in SG&A as a percentage of net sales from the absence of out-of-pocket costs related to the COVID-19 pandemic incurred in fiscal 2020. These benefits were partially offset by wage and benefits inflation and costs related to the completion of the Dayton Parts acquisition and subsequent integration activities in fiscal 2021.

Our effective tax rate increased to 22.5% in fiscal 2021 from 21.3% in fiscal 2020. The higher effective tax rate for fiscal 2021 was the result of higher state tax expense and nondeductible transaction costs related to the Dayton Parts acquisition. The lower fiscal 2020 effective tax rate was the result of a nontaxable book gain and the write-off of a deferred tax liability in connection with our acquisition of the controlling interest in Power Train Industries, Inc. (“PTI”) in January 2020, and a foreign tax credit carry-back claim.

Liquidity and Capital Resources

Historically, our primary sources of liquidity have been our invested cash and the cash flow we generate from our operations, including accounts receivable sales programs provided by certain customers. Cash and cash equivalents at December 25, 2021 decreased to $58.8 million from $155.6 million at December 26, 2020. Working capital was $411.5 million at December 25, 2021 compared to $600.3 million at December 26, 2020. Shareholders’ equity was $932.7 million at December 25, 2021 and $853.6 million at December 26, 2020. Based on our current operating plan, we believe that our sources of available capital are adequate to meet our ongoing cash needs for at least the next twelve months. However, our liquidity could be negatively affected by extending payment terms to customers, a decrease in demand for our products, the outcome of contingencies or other factors. See Note 10, “Commitments and Contingencies”, in the accompanying consolidated financial statements for additional information regarding commitments and contingencies that may affect our liquidity.

Tariffs

Tariffs increase our uses of cash since we pay for the tariffs upon the arrival of our goods in the United States but collect the cash on any passthrough price increases from our customers on a delayed basis according to the payment terms negotiated with our customers.

Payment Terms and Accounts Receivable Sales Programs

Over the past several years we have continued to extend payment terms to certain customers as a result of customer requests and market demands. These extended terms have resulted in increased accounts receivable levels and significant uses of cash flows. We participate in accounts receivable sales programs with several customers that allow us to sell our accounts receivable to financial institutions to offset the

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negative cash flow impact of these payment terms extensions. However, any sales of accounts receivable through these programs ultimately result in us receiving a lesser amount of cash than if we collected those accounts receivable ourselves in due course. Moreover, to the extent that any of these accounts receivable sales programs bear interest rates tied to the London Inter-Bank Offered Rate (“LIBOR”), as LIBOR rates increase our cost to sell our receivables also increases. See ITEM 7A, “Quantitative and Qualitative Disclosures about Market Risk” for more information. During fiscal 2021 and fiscal 2020, we sold approximately $935.8 million and $740.0 million, respectively, under these programs. If receivables had not been sold, $598.8 million and $505.1 million of additional receivables would have been outstanding at December 25, 2021 and December 26, 2020, respectively, based on standard payment terms. We had capacity to sell more accounts receivable under these programs if the needs of the business warranted. Further extensions of customer payment terms would result in additional uses of cash flow or increased costs associated with the sales of accounts receivable.

Credit Agreement

On August 10, 2021, in connection with the acquisition of Dayton Parts, we entered into a new credit agreement that provides for a $600 million revolving credit facility, including a letter of credit sub-facility of up to $60 million (the “New Facility”). The New Facility replaced our previous $100 million revolving credit facility. The New Facility matures on August 10, 2026, is guaranteed by the Company’s material domestic subsidiaries (together with the Company, the “Credit Parties”) and is supported by a security interest in substantially all of the Credit Parties’ personal property and assets, subject to certain exceptions.

Borrowings under the New Facility bear interest at a rate per annum equal to, at the Company’s option, either a LIBOR rate (subject to a 0.00% floor) or a base rate, in each case plus an applicable margin of, initially (i) in the case of LIBOR rate, 1.250% or (ii) in the case of base rate loans, 0.250%. The applicable margin for (i) base rate loans ranges from 0.000% to 1.000% per annum and (ii) for LIBOR loans ranges from 1.000% to 2.000% per annum, in each case, based on the Total Net Leverage Ratio (as defined in the New Facility). The interest rate at December 25, 2021 was LIBOR plus 125 basis points (1.35%). The commitment fee is initially equal to 0.150% and thereafter ranges from 0.125% to 0.250% based on the Total Net Leverage Ratio.

The New Facility contains affirmative and negative covenants, including, but not limited to, covenants regarding capital expenditures, share repurchases, and financial covenants related to the ratio of consolidated interest expense to consolidated EBITDA and the ratio of total net indebtedness to consolidated EBITDA, each as defined by the New Facility.

As of December 25, 2021, we were not in default with respect to the credit agreement. As of December 25, 2021, there was $239.4 million in outstanding borrowings under the New Facility and two outstanding letters of credit for $0.8 million in the aggregate which were issued to secure ordinary course of business transactions. Net of outstanding borrowings and letters of credit, we had $359.8 million available under the New Facility at December 25, 2021.

Cash Flows

Below is a table setting forth the key lines of our Consolidated Statements of Cash Flows:

	For the Fiscal Year Ended
(in thousands)	December 25, 2021			December 26, 2020
Cash provided by operating activities	$	100,338		$	151,966
Cash used in investing activities		(365,323	)		(30,258	)
Cash provided by (used in) financing activities		168,235			(34,485	)
Effect of foreign exchange on cash and cash equivalents		(44	)		—
Net (decrease) increase in cash and cash equivalents	$	(96,794	)	$	87,223

 During fiscal 2021, cash provided by operating activities was $100.3 million compared to $152.0 million during fiscal 2020. The $51.7 million decrease was driven by higher inventory purchases in the

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current year to maintain customer fill rates and meet continued strong demand, partially offset by higher proceeds from accounts receivable due to higher sales of accounts receivable during the year.

Investing activities used $365.3 million and $30.3 million of cash in fiscal 2021 and 2020, respectively.

• Capital spending in fiscal 2021 primarily consisted of $5.0 million in tooling associated with new products, $5.7 million in enhancements and upgrades to our information systems and infrastructure, scheduled equipment replacements, certain facility improvements and other capital projects.

• Capital spending in fiscal 2020 primarily consisted of $5.6 million in tooling associated with new products, $5.9 million in enhancements and upgrades to our information systems and infrastructure, scheduled equipment replacements, certain facility improvements and other capital projects.

• During fiscal 2021, we used $345.5 million to acquire Dayton Parts, net of cash acquired, and during fiscal 2020, we used $14.8 million to acquire the remaining 60% of the outstanding equity of PTI, net of cash acquired.

Financing activities provided cash of $168.2 million in fiscal 2021 and used cash of $34.5 million in fiscal 2020.

• During fiscal 2021, we borrowed $252.4 million under the New Facility to help fund the acquisition of Dayton Parts in August 2021, and subsequently repaid $13.0 million of that borrowing during fiscal 2021. Additionally, during fiscal 2021, we paid $61.5 million to repurchase 604,628 common shares under our share repurchase plan.

• In fiscal 2020, we paid $36.8 million to repurchase 439,275 common shares under the program.

• The remaining uses of cash from financing activities in each period results from stock compensation plan activity and the repurchase of shares of our common stock held in a fund under our 401(k) Plan. 401(k) Plan participants can no longer purchase shares of Dorman common stock as an investment option under the 401(k) Plan. Shares are generally purchased from the 401(k) Plan when participants sell units as permitted by the 401(k) Plan or elect to leave the 401(k) Plan upon retirement, termination or other reasons.

Off-Balance Sheet Arrangements

Off-balance sheet arrangements are transactions, agreements, or other contractual arrangements with an unconsolidated entity for which we have an obligation to the entity that is not recorded in our consolidated financial statements. We historically have not utilized off-balance sheet financial instruments, and currently do not plan to utilize off-balance sheet arrangements in the future to fund our working capital requirements, operations or growth plans.

We may issue stand-by letters of credit under our credit agreement. Letters of credit totaling $0.8 million were outstanding at both December 25, 2021 and December 26, 2020. Those letters of credit are issued primarily to satisfy the requirements of workers compensation, general liability and other insurance policies. Each of the outstanding letters of credit has a one-year term from the date of issuance.

We do not have any off-balance sheet financing that has, or is reasonably likely to have, a material, current or future effect on our financial condition, revenues, expenses, cash flows, results of operations, liquidity, capital expenditures or capital resources.

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Related-Party Transactions

We have two non-cancelable operating leases for operating facilities from companies in which Steven L. Berman, our Executive Chairman, and his family members are owners. Total annual rental payments each year to those companies under the lease arrangements were $2.3 million and $1.8 million in fiscal 2021 and fiscal 2020, respectively.

We are a partner in a joint venture with one of our suppliers and we own a minority interest in two other suppliers. Purchases from these companies, since we acquired our investment interests were $18.9 million in fiscal 2021 and $10.7 million in fiscal 2020.

Critical Accounting Policies

Our discussion and analysis of our financial condition and results of operations are based upon the Consolidated Financial Statements, which have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent liabilities and the reported amounts of revenues and expenses. We regularly evaluate our estimates and judgments, including those related to revenue recognition, customer rebates and returns, inventories, long-lived assets and purchase accounting. Estimates and judgments are based upon historical experience and on various other assumptions believed to be accurate and reasonable under the circumstances. Actual results may differ materially from these estimates due to different assumptions or conditions. We believe the following critical accounting policies affect our more significant estimates and judgments used in the preparation of our Consolidated Financial Statements.

Revenue Recognition and Accrued Customer Rebates and Returns. Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer and collection is reasonably assured. We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits, and other discounts in the period of the sale ("Customer Credits"). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns, which is included in current liabilities. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Historically, actual Customer Credits have not differed materially from estimated amounts. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold.

Excess and Obsolete Inventory Reserves. We must make estimates of potential future excess and obsolete inventory costs. We provide reserves for discontinued and excess inventory based upon historical demand, forecasted usage, estimated customer requirements and product line updates. We maintain contact with our customer base to understand buying patterns, customer preferences and the life cycle of our products. Changes in customer requirements are factored into the reserves, as needed.

Purchase Accounting. The purchase price of an acquired business is allocated to the underlying tangible and intangible assets acquired and liabilities assumed based upon their respective fair market values, with any excess recorded as goodwill. Such fair market value assessments require judgments and estimates which may change over time and may cause the final amounts to differ materially from original estimates. Any adjustments to fair value assessments are recorded to goodwill over the purchase price allocation period which cannot exceed twelve months from the date of acquisition. Refer to Note 2 to the Consolidated Financial Statements for additional information.

New and Recently Adopted Accounting Pronouncements

None noted.

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ITEM 7A. Quantitative and Qualitative Disclosures about Market Risk.

Our market risk is the potential loss arising from adverse changes in interest rates. All our available credit and accounts receivable sales programs bear interest at rates tied to LIBOR or alternative discount rates. Under the terms of our credit agreement, a change in either the lender’s base rate or, LIBOR would affect the rate at which we could borrow funds thereunder. A one percentage point increase in LIBOR or base rate would have increased our interest expense on our variable rate debt under our credit agreement by approximately $1.1 million in fiscal 2021.

Under the terms of our customer sponsored programs to sell accounts receivable, a change in either LIBOR or the discount rates would affect the amount of financing costs we incur, and the amount of cash we receive upon the sales of accounts receivable under these programs. A one percentage point increase in LIBOR or the discount rates on the accounts receivable sales programs would have increased our financing costs by approximately $6.7 million, $5.1 million and $4.4 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively.

These estimates assume that our variable rate debt balance and the level of sales of accounts receivable remains constant for an annual period and the interest rate change occurs at the beginning of the period. The hypothetical changes and assumptions may be different from what actually occurs in the future. See ITEM 1A, “Risk Factors – Risks Related to Our Capital Structure and Finances” for information regarding the risks relating to our indebtedness, our accounts receivable sales agreements and LIBOR.

Historically we have not used, and currently do not intend to use, derivative financial instruments for trading or to speculate on changes in interest rates or commodity prices. We are not exposed to any significant market risks, foreign currency exchange risks, or interest rate risks from the use of derivative instruments. We did not hold any derivative instruments at December 25, 2021.

ITEM 8. Financial Statements and Supplementary Data.

Our financial statement schedule that is filed with this Annual Report on Form 10-K is listed in PART IV –ITEM 15, “Exhibits, Financial Statement Schedules.”

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Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors
Dorman Products, Inc.:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Dorman Products, Inc. and subsidiaries (the Company) as of December 25, 2021 and December 26, 2020, the related consolidated statements of operations and comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended December 25, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 25, 2021 and December 26, 2020, and the results of its operations and its cash flows for each of the years in the three-year period ended December 25, 2021, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of December 25, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated February 22, 2022 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

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Accrual for customer credits for defective product returns

As disclosed in Notes 1 and 11 to the consolidated financial statements, the Company estimates customer credits for defective product returns and other items. The accrual for customer credits to be issued for defective product returns includes assumptions about the length of time between when a sale occurs and a credit is issued. The provision for customer credits is reflected in the consolidated financial statements as a reduction from gross sales and accruals for customer credits are a portion of accrued customer rebates and returns. At December 25, 2021, accrued customer rebates and returns were $188,080 thousand.

We identified the evaluation of the accrual for customer credits for defective product returns as a critical audit matter. Subjective auditor judgment was required to evaluate the Company’s determination of the impact of market conditions on the length of time between when a sale occurs and a credit is issued for defective product returns.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company’s process to record the accrual for customer credits for defective product returns. This included a control related to the determination of the impact of market conditions on the length of time between when a sale occurs and a credit is issued for defective product returns. We assessed the Company’s accrual for customer credits for defective product returns by evaluating (1) the historical relationship between sales and customer credits for defective product returns (2) the Company’s internal data, (3) certain external market data, and (4) a sample of executed third-party contracts. We inquired of personnel within the Company’s quality control department regarding the impact of current market conditions on the length of time between when a sale occurs and a credit is issued for defective product returns. We analyzed a sample of customer credits issued after year-end and evaluated their effect on the accrual.

Fair value of customer relationships intangible asset

As discussed in Note 2 to the consolidated financial statements, on August 10, 2021, the Company acquired 100% of the equity interests of Dayton Parts (“Dayton”), in a business combination. The Company acquired a customer relationships intangible asset associated with the generation of future income from Dayton’s existing customers. The estimated acquisition-date fair value for the customer relationships intangible asset was approximately $124,100 thousand. The Company used a multiperiod excess earnings valuation methodology to determine the estimated fair value of the customer relationships intangible asset.

We identified the evaluation of the estimated fair value of the customer relationships intangible asset acquired in the Dayton business combination as a critical audit matter. There was a high degree of subjective auditor judgment related to certain assumptions used in the valuation model. These assumptions included the forecasted revenue growth rates, customer attrition rate, and the discount rate applied. In addition, valuation professionals with specialized skill and knowledge were also required to perform sensitivity analyses to assist us in determining the significant assumptions used to value the customer relationships intangible asset, assess certain assumptions, and evaluate evidence obtained.

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The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the Company’s acquisition-date valuation process, including controls related to the development of the above assumptions. We evaluated the amount and timing of forecasted revenue growth rates used by the Company by comparing them to publicly available information for comparable companies, industry reports, and historical results. We involved valuation professionals with specialized skills and knowledge, who assisted in: 

• performing sensitivity analyses over the Company’s assumptions used to determine the estimated fair value of the customer relationships intangible asset to assess the impact of changes in those assumptions on the Company’s determination of fair value

• evaluating the expected customer attrition rate used in the determination of fair value, by comparing it to an independently developed attrition rate using historical sales data

• assessing the discount rate used in the determination of fair value, by comparing it to a discount rate that was independently developed using publicly available market data for comparable entities.

/s/ KPMG LLP

We have served as the Company’s auditor since 2002.

Philadelphia, Pennsylvania
February 22, 2022

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DORMAN PRODUCTS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME

	For the Year Ended
(in thousands, except per share data)	December 25, 2021			December 26, 2020			December 28, 2019
Net sales	$	1,345,249		$	1,092,748		$	991,329
Cost of goods sold		882,333			709,632			651,504
Gross profit		462,916			383,116			339,825
Selling, general and administrative expenses		291,365			249,743			233,997
Income from operations		171,551			133,373			105,828
Interest expense, net		2,162			599			231
Other income, net		(377	)		(2,962	)		(210	)
Income before income taxes		169,766			135,736			105,807
Provision for income taxes		38,234			28,866			22,045
Net income	$	131,532		$	106,870		$	83,762
Other comprehensive income:
Change in foreign currency translation adjustment	$	(1,440	)	$	—		$	—
Comprehensive Income	$	130,092		$	106,870		$	83,762
Earnings per share:
Basic	$	4.13		$	3.31		$	2.57
Diluted	$	4.12		$	3.30		$	2.56
Weighted average shares outstanding:
Basic		31,810			32,280			32,606
Diluted		31,961			32,373			32,688

See accompanying Notes to Consolidated Financial Statements.

43

DORMAN PRODUCTS, INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)	December 25, 2021			December 26, 2020
Assets
Current assets:
Cash and cash equivalents	$	58,782		$	155,576
Accounts receivable, less allowance for doubtful accounts of $1,326 and $1,260		472,764			460,878
Inventories		531,988			298,719
Prepaids and other current assets		13,048			7,758
Total current assets		1,076,582			922,931
Property, plant and equipment, net		114,864			91,009
Operating lease right-of-use assets		59,029			39,002
Goodwill		197,332			91,080
Intangible assets, net		178,809			25,207
Deferred tax asset, net		—			12,450
Other assets		46,503			38,982
Total assets	$	1,673,119		$	1,220,661
Liabilities and shareholders' equity
Current liabilities:
Accounts payable	$	177,389		$	117,878
Accrued compensation		26,636			19,711
Accrued customer rebates and returns		188,080			155,751
Revolving credit facility		239,360			—
Other accrued liabilities		33,583			29,305
Total current liabilities		665,048			322,645
Long-term operating lease liabilities		52,443			37,083
Other long-term liabilities		4,916			3,555
Deferred tax liabilities, net		17,976			3,819
Commitments and contingencies (Note 10)
Shareholders' equity:
Common stock, par value $0.01; authorized 50,000,000 shares; issued and outstanding 31,607,509 and 32,168,740 shares in 2021 and 2020, respectively		316			322
Additional paid-in capital		77,451			64,085
Retained earnings		856,409			789,152
Accumulated other comprehensive loss		(1,440	)		—
Total shareholders' equity		932,736			853,559
Total liabilities and shareholders' equity	$	1,673,119		$	1,220,661

See accompanying Notes to Consolidated Financial Statements.

44

DORMAN PRODUCTS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY

	Common Stock						Additional						Accumulated Other
(in thousands, except share data)	Shares Issued			Par Value			Paid-In Capital			Retained Earnings			Comprehensive Loss			Total
Balance at December 29, 2018		33,004,861		$	330		$	47,861		$	679,432		$	—		$	727,623
Exercise of stock options		14,227			—			123			—			—			123
Compensation expense under Incentive Stock Plan		—			—			3,077			—			—			3,077
Purchase and cancellation of common stock		(521,944	)		(5	)		(939	)		(40,395	)		—			(41,339	)
Issuance of non-vested stock, net of cancellations		69,826			1			1,376			—			—			1,377
Other stock related activity, net of tax		(10,707	)		—			1,107			(2,146	)		—			(1,039	)
Net income		—			—			—			83,762			—			83,762
Balance at December 28, 2019		32,556,263			326			52,605			720,653			—			773,584
Exercise of stock options		27,787			—			1,184			—			—			1,184
Compensation expense under Incentive Stock Plan		—			—			7,586			—			—			7,586
Purchase and cancellation of common stock		(462,635	)		(5	)		(833	)		(37,838	)		—			(38,676	)
Issuance of non-vested stock, net of cancellations		53,572			1			3,462			—			—			3,463
Other stock related activity, net of tax		(6,247	)		—			81			(533	)		—			(452	)
Net income		—			—			—			106,870			—			106,870
Balance at December 26, 2020		32,168,740			322			64,085			789,152			—			853,559
Exercise of stock options		41,700			—			2,455			—			—			2,455
Compensation expense under Incentive Stock Plan		—			—			8,228			—			—			8,228
Purchase and cancellation of common stock		(617,080	)		(6	)		(1,111	)		(61,639	)		—			(62,756	)
Issuance of non-vested stock, net of cancellations		28,914			—			3,261			—			—			3,261
Other stock related activity, net of tax		(14,765	)		—			533			(2,636	)		—			(2,103	)
Other comprehensive loss		—			—			—			—			(1,440	)		(1,440	)
Net income		—			—			—			131,532			—			131,532
Balance at December 25, 2021		31,607,509		$	316		$	77,451		$	856,409		$	(1,440	)	$	932,736

See accompanying Notes to Consolidated Financial Statements.

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DORMAN PRODUCTS, INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Cash Flows from Operating Activities:
Net income	$	131,532		$	106,870		$	83,762
Adjustments to reconcile net income to cash provided by    operating activities:
Depreciation, amortization and accretion		35,193			32,307			25,915
Gain on equity method investment		—			(2,498	)		—
Provision for doubtful accounts		181			316			39
(Benefit) provision from deferred income taxes		(11,970	)		(9,599	)		1,058
Provision for stock-based compensation		8,228			7,586			3,077
Payment of contingent consideration		(2,418	)		—			—
Changes in assets and liabilities:
Accounts receivable		10,918			(67,369	)		8,810
Inventories		(153,823	)		(12,334	)		(10,956	)
Prepaids and other current assets		(2,680	)		5,353			(7,659	)
Other assets		(5,004	)		(3,975	)		1,672
Accounts payable		47,000			25,251			(19,079	)
Accrued customer rebates and returns		31,275			49,849			9,016
Accrued compensation and other liabilities		11,906			20,209			(349	)
Cash provided by operating activities		100,338			151,966			95,306
Cash Flows from Investing Activities:
Acquisitions, net of cash acquired		(345,483	)		(14,808	)		—
Property, plant and equipment additions		(19,840	)		(15,450	)		(29,560	)
Cash used in investing activities		(365,323	)		(30,258	)		(29,560	)
Cash Flows from Financing Activities:
Proceeds of revolving credit line		252,360			99,000			—
Payments of revolving credit line		(13,000	)		(99,000	)		—
Payment of contingent consideration		(7,982	)		—			—
Payment of debt issuance costs		(4,215	)		—			—
Other stock related activity		1,266			3,007			365
Proceeds from exercise of stock options		2,455			1,184			123
Purchase and cancellation of common stock		(62,649	)		(38,676	)		(41,339	)
Cash provided by (used in) financing activities		168,235			(34,485	)		(40,851	)
Effect of exchange rate changes on Cash and Cash Equivalents		(44	)		—			—
Net (Decrease) Increase in Cash and Cash Equivalents		(96,794	)		87,223			24,895
Cash and Cash Equivalents, Beginning of Period		155,576			68,353			43,458
Cash and Cash Equivalents, End of Period		58,782		$	155,576		$	68,353
Supplemental Cash Flow Information
Cash paid for interest expense	$	1,782		$	753		$	338
Cash paid for income taxes	$	46,225		$	28,341		$	28,923

See accompanying Notes to Consolidated Financial Statements.

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DORMAN PRODUCTS, INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

DECEMBER 25, 2021

1. Summary of Significant Accounting Policies

Dorman Products, Inc. ("Dorman", the "Company", “we”, “us”, or “our”) is a supplier of replacement parts and fasteners for passenger cars and light-, medium-, and heavy-duty trucks in the automotive aftermarket industry.

We operate on a 52-53-week period ending on the last Saturday of the calendar year. The fiscal years ended December 25, 2021 (“fiscal 2021”), December 26, 2020 (“fiscal 2020”) and December 28, 2019 (“fiscal 2019”) were each 52-week periods.

Principles of Consolidation. The Consolidated Financial Statements include our accounts and the accounts of our wholly owned subsidiaries. All material intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents. We consider all highly liquid short-term investments with original maturities of three months or less to be cash equivalents.

Sales of Accounts Receivable. We have entered into several customer-sponsored programs administered by unrelated financial institutions that permit us to sell certain accounts receivable at discounted rates to the financial institutions. Transactions under these programs were accounted for as sales of accounts receivable and were removed from our Consolidated Balance Sheet at the time of the sales transactions. During fiscal 2021, fiscal 2020 and fiscal 2019, we sold $935.8 million, $740.0 million and $676.4 million, respectively, under these programs. Selling, general and administrative expenses include financing costs associated with these accounts receivable sales programs of $11.7 million, $13.2 million and $16.7 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. Financing costs are impacted both by interest rates and the timing of when accounts receivable are sold in comparison to the original due dates of those accounts receivable.

Inventories. Inventories are stated at the lower of cost or net realizable value. Cost is determined by the first-in, first-out method. Inventories include the cost of material, freight, direct labor and overhead utilized in the processing of our products. We provide reserves for discontinued and excess inventory based upon historical demand, forecasted usage, estimated customer requirements and product line updates.

Property, Plant and Equipment. Property, plant and equipment are recorded at cost and depreciated over the estimated useful lives, which range from 3 to 39 years, using the straight-line method for financial statement reporting purposes and accelerated methods for income tax purposes. The costs of maintenance and repairs are expensed as incurred. Renewals and betterments are capitalized. Gains and losses on disposals are included in operating results.

Estimated useful lives by major asset category are as follows:

Buildings and building improvements	10 to 39 years
Machinery, equipment and tooling	3 to 7 years
Software and computer equipment	3 to 10 years
Furniture, fixtures and leasehold improvements	7 to 39 years

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Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets. Long-lived assets, including property, plant, and equipment and amortizable identifiable intangibles, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. The impairment review is a two-step process. First, recoverability is measured by comparing the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount exceeds the estimated undiscounted future cash flows, the second step of the impairment test is performed, and an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds its fair value. The assets and liabilities of a disposal group classified as held for sale would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated.

Goodwill is reviewed for impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value of the goodwill may be impaired. For the annual test, we have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If we determine it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. During fiscal 2021 and fiscal 2020, we assessed the qualitative factors which could affect the fair values of our reporting unit and determined that it was not more likely than not that the fair value of our reporting unit was less than its carrying amount.

Purchase Accounting. The purchase price of an acquired business is allocated to the underlying tangible and intangible assets acquired and liabilities assumed based upon their respective fair market values, with the excess recorded as goodwill. Such fair market value assessments require judgments and estimates which may change over time and may cause the final amounts to differ materially from their original estimates. These adjustments to fair value assessments are recorded to goodwill over the purchase price allocation period which cannot exceed 12 months from the date of acquisition.

Other Assets. Other assets include primarily long-term core inventory, deposits, and equity method investments.

Certain products we sell contain parts that can be recycled, or as more commonly referred to in our industry, remanufactured. We refer to these parts as cores. A used core is remanufactured and sold to the customer as a replacement for a unit inside a vehicle. Customers and end-users that purchase remanufactured products will generally return the used core to us, which we then use in the remanufacturing process to make another finished good. Our core inventory consists of used cores purchased and held in our facilities, used cores that are in the process of being returned from our customers and end-users, and remanufactured cores held in finished goods inventory at our facilities. Our products that utilize a core primarily include instrument clusters, hybrid batteries, radios, and climate control modules.

Long-term core inventory was $20.8 million and $19.6 million as of December 25, 2021 and December 26, 2020, respectively. Long-term core inventory is recorded at the lower of cost or net realizable value. Cost is determined based on actual purchases of core inventory. We believe that the most appropriate classification of core inventory is a long-term asset. According to guidance provided under the Financial Accounting Standards Board Accounting Standards Codification (“ASC”), current assets are defined as “assets or resources commonly identified as those which are reasonably expected to be realized in cash or sold or consumed during the normal operating cycle of the business.” The determination of the long-term classification is based on our view that the value of the cores is not expected to be consumed or realized in cash during our normal annual operating cycle.

We have investments that we account for according to the equity method of accounting. The total book value of these investments was $9.4 million and $8.5 million as of December 25, 2021 and December 26, 2020, respectively. These investments provided us $4.6 million, $1.3 million and $3.2 million of income during fiscal 2021, fiscal 2020, and fiscal 2019, respectively. In January 2020, we

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acquired the remaining 60% of the outstanding stock of Power Train Industries, Inc. (“PTI”), a privately-held supplier of parts to the automotive aftermarket, based in Reno, Nevada of which we held equity investments with a fair value of $12.3 million. Additionally, we have an investment that we account for according to the cost method of accounting. The carrying book value of this investment was $5.0 million as of both December 25, 2021 and December 26, 2020.

Other Accrued Liabilities. Other accrued liabilities include primarily accrued commissions, accrued income taxes, insurance liabilities, product warranties, and other current liabilities. We warrant our products against certain defects in material and workmanship when used as designed on the vehicle on which it was originally installed. We offer a limited lifetime warranty on most of our products. Our warranty limits the end-user’s remedy to the repair or replacement of the part that is defective. Product warranty reserves were immaterial as of December 25, 2021 and December 26, 2020 and are based upon experience and forecasts using the best historical and current claim information available. Provisions and payments related to end-user product warranty reserves were not material in fiscal 2021, fiscal 2020 or fiscal 2019.

Revenue Recognition and Accrued Customer Rebates and Returns. Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer and collection is reasonably assured. We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits, and other discounts in the period of the sale ("Customer Credits"). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns, which is included in current liabilities. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Actual Customer Credits have not differed materially from estimated amounts. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold.

As noted above, Customer Credits include core return deposits which are an estimate of the amount we believe we will refund to our customers when used cores are returned to us. The price we invoice to customers for remanufactured cores contains both the amount we charge to remanufacture the part and a deposit for the core. We charge a core deposit to encourage the customer to return the used core to us so that it can be used in our remanufacturing process. We allow our customers up to twenty-four months to return the used core to us. Core return deposits are reserved based on the expected deposits to be issued to customers based on historical returns.

Research and Development. Research and development costs are expensed as incurred. Research and development costs totaling $23.1 million, $20.7 million and $21.0 million have been recorded in selling, general and administrative expenses in the Consolidated Statements of Operations for fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

Stock-Based Compensation. At December 25, 2021 and December 26, 2020, we had awards outstanding under two stock-based employee compensation plans, which are described more fully in Note 12, Capital Stock. We record compensation expense for all awards granted. The value of restricted stock awards (“RSAs”) and restricted stock units (“RSUs”) issued was based on the fair value of our common stock on the grant date. For performance-based RSAs tied to growth in adjusted pre-tax income, compensation costs related to the stock is recognized over the performance period and is calculated using the closing price per share of our common stock on the grant date and an estimate of the probable outcome of the performance conditions as of the reporting date. The fair value of performance-based RSUs, for which the performance measure is total shareholder return, is determined using a Monte Carlo simulation model. The fair value of stock options granted is determined using the Black-Scholes option valuation model on the grant date.

Income Taxes. We follow the asset and liability method of accounting for deferred income taxes. Deferred tax assets and liabilities are determined based on the difference between the financial statement

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and tax bases of assets and liabilities. Deferred tax assets or liabilities at the end of each period are determined using the enacted tax rate expected to be in effect when taxes are paid or recovered.

Unrecognized income tax benefits represent income tax positions taken on income tax returns that have not been recognized in the consolidated financial statements. The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, we accrue interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the Consolidated Statements of Operations. The Company does not anticipate material changes in the amount of unrecognized income tax benefits over the next year.

Concentrations of Risk. Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents and accounts receivable. All cash equivalents are managed within established guidelines which limit the amount that may be invested with one issuer. A significant percentage of our accounts receivable have been, and will continue to be, concentrated among a relatively small number of automotive retailers and warehouse distributors in the United States. Our four largest customers accounted for 71% and 82% of net accounts receivable as of December 25, 2021 and December 26, 2020, respectively. We continually monitor the credit terms and credit limits to these and other customers.

In fiscal 2021 and fiscal 2020, approximately 74% and 77%, respectively, of our products were purchased from suppliers located in a variety of foreign countries, with the largest portion coming from China.

Fair Value Disclosures. The carrying value of financial instruments such as cash and cash equivalents, accounts receivable, accounts payable, and other current assets and liabilities approximate their fair value based on the short-term nature of these instruments. Additionally, the fair value of assets acquired and liabilities assumed are determined at the date of acquisition. Contingent consideration associated with an acquisition is recorded at fair value at the acquisition date and is adjusted to fair value at each reporting period.

2. Business Acquisitions and Investments

DPL Holding Corporation (“Dayton Parts”)

On August 10, 2021, we acquired 100% of the equity interests of Dayton Parts, a manufacturer of chassis and other parts designed to serve the heavy-duty vehicle sector of the aftermarket for a purchase price of $344.9 million in cash (net of $8.8 million of acquired cash), after certain customary post-acquisition purchase price adjustments.

The acquisition was funded by cash on hand as well as through the refinancing of our revolving credit facility discussed further in Note 7.

The transaction was accounted for as a business combination under the acquisition method of accounting. We have allocated the purchase price to tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values.

During the year ended December 25, 2021, we recorded measurement and period adjustments of approximately $2.1 million to decrease goodwill, $0.6 million to decrease the purchase price due to customary net working capital adjustments, $0.1 million to increase other current liabilities, and $1.6 million to decrease deferred tax liabilities. Our measurement period adjustments for Dayton Parts were complete as of December 25, 2021.

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The table below details the fair values of the assets acquired and the liabilities assumed at the acquisition date, including applicable measurement period adjustments:

(in thousands)
Accounts receivable	$	23,216
Inventories		79,625
Prepaids and other current assets		2,302
Property, plant and equipment		29,900
Goodwill		106,816
Identifiable intangible assets		160,400
Operating lease right-of-use assets		21,248
Other assets		848
Accounts payable		(11,970	)
Accrued compensation		(2,784	)
Other current liabilities		(7,604	)
Long-term operating lease liabilities		(18,444	)
Deferred tax liabilities		(38,665	)
Net cash consideration	$	344,888

The estimated valuation of the intangible assets acquired, and related amortization periods are as follows:

(in thousands)	Fair Value		Amortization Period (in years)
Customer relationships	$	124,100		20
Product portfolio		25,300		20
Trade names		11,000		10
Total	$	160,400

The fair values assigned to intangible assets were estimated by discounting expected cash flows based on the relief from royalty and multi-period excess earnings valuation methodologies. These valuation methods rely on management judgment, including expected future cash flows resulting from existing customer relationships, customer attrition rates, contributory effects of other assets utilized in the business, royalty rates and other factors.

The goodwill recognized is attributable primarily to strategic and synergistic opportunities related to the Company’s and Dayton Parts’ existing automotive aftermarket businesses, the assembled workforce of Dayton Parts and other factors. The goodwill is not expected to be deductible for tax purposes.

The financial results of the acquisition have been included in the consolidated financial statements since the date of acquisition. The net sales and net income of Dayton Parts included in the consolidated financial statements for the fiscal year ended December 25, 2021 were $78.0 million and $0.0 million, respectively.

The unaudited pro forma information for the periods set forth below gives effect to the Dayton Parts acquisition as if it had occurred as of December 28, 2019, the beginning of the fiscal 2020 period.

The pro forma information is presented for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved had the acquisition been consummated as of that time.

	For the Year Ended
(in thousands, unaudited)	December 25, 2021		December 26, 2020
Net sales	$	1,468,415	$	1,260,077
Net income	$	147,090	$	100,334
Diluted earnings per share	$	4.60	$	3.10

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The fiscal 2021 unaudited pro forma net income set forth above was adjusted to exclude the impact of acquisition date fair value adjustments to inventory, and to also remove acquisition-related transaction costs. The 2020 unaudited pro forma net income was adjusted to include the impact of these items.

Power Train Industries, Inc.

On January 2, 2020, we acquired the remaining 60% of the outstanding stock of PTI. The total purchase price for PTI was approximately $30.7 million, which included $18.4 million paid for the remaining 60% of the outstanding stock, subject to customary purchase price adjustments, and $12.3 million which represents the fair value of the previously held 40% equity interest in PTI that was acquired by the Company in 2016. As a result of the acquisition, we recorded a gain of approximately $2.5 million in other income (expense), net during the year ended December 26, 2020 from the increase in fair value of the previously owned 40% interest in PTI. We previously accounted for our 40% interest as an equity-method investment.

The transaction was accounted for as a business combination under the acquisition method of accounting. Accordingly, the assets acquired, and liabilities assumed were recorded at fair value, with the remaining purchase price recorded as goodwill.

In connection with this acquisition, we recorded $16.7 million in goodwill, $7.3 million of identified intangibles, and $6.7 million of other assets, net, consisting of $3.5 million of cash, $2.0 million of accounts receivable, $5.6 million of inventory, and ($4.4 million) of net other assets and liabilities.

Our measurement period adjustments for PTI were complete as of December 26, 2020.

The valuation of the intangible assets acquired and related amortization periods are as follows:

(in thousands)	Valuation		Amortization Period (in years)
Customer relationships	$	4,600		15
Trade names		700		5
Technology		1,800		8
Other		190		5
Total	$	7,290

The fair values of the customer relationships and trade names were estimated using an income approach based on the present value of future cash flows.

The goodwill recognized is attributable primarily to strategic and synergistic opportunities related to existing automotive aftermarket businesses, the assembled workforce of PTI and other factors. The goodwill is not expected to be deductible for tax purposes.

The financial results of the acquisition have been included in the Consolidated Financial Statements since the date of acquisition.

3. Inventories

Inventories were as follows:

(in thousands)	December 25, 2021		December 26, 2020
Raw materials	$	12,746	$	—
Bulk product		225,879		136,726
Finished product		287,415		157,484
Packaging materials		5,948		4,509
Total	$	531,988	$	298,719

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4. Property, Plant and Equipment

Property, plant and equipment include the following:

(in thousands)	December 25, 2021			December 26, 2020
Buildings	$	58,788		$	37,676
Machinery, equipment and tooling		146,999			131,853
Furniture, fixtures and leasehold improvements		7,303			5,468
Software and computer equipment		90,471			84,922
Total		303,561			259,919
Less-accumulated depreciation and amortization		(188,697	)		(168,910	)
Property, plant and equipment, net	$	114,864		$	91,009

Depreciation and amortization expenses associated with property, plant, and equipment were $26.3 million, $26.6 million, and $25.4 million in fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

5. Leases

We determine whether an arrangement is a lease at inception. This determination generally depends on whether the arrangement conveys the right to control the use of an identified fixed asset explicitly or implicitly for a period of time in exchange for consideration. Control of an underlying asset is conveyed if we obtain the rights to direct the use of the asset and to obtain substantially all of the economic benefit from its use. We have operating leases for distribution centers, sales offices and certain warehouse and office equipment. Our operating leases have remaining lease terms of 1 to 10 years, many of which include one or more renewal options. We consider these renewal options in determining the lease term used to establish our right-of-use assets and lease liabilities when it is determined that it is reasonably certain that the renewal option will be exercised. Substantially all of our equipment leases and some of our real estate leases have terms of less than one year. Some of our operating lease agreements include variable lease costs, primarily taxes, insurance, common area maintenance or increases in rental costs related to inflation.

Operating leases are included in the right-of-use lease assets, other current liabilities and long-term lease liabilities on the Consolidated Balance Sheet. Right-of-use assets and lease liabilities are recognized at each lease’s commencement date based on the present values of its lease payments over its respective lease term. When a borrowing rate is not explicitly available for a lease, our incremental borrowing rate is used based on information available at the lease’s commencement date to determine the present value of its lease payments. The incremental borrowing rate is not commonly quoted and is derived through a combination of inputs including our credit rating and the impact of full collateralization. The incremental borrowing rate is based on our collateralized borrowing capabilities over a similar term of the lease payments. We utilized the consolidated group borrowing rate for all leases as we operate a centralized treasury operation. Operating lease payments are recognized on a straight-line basis over the lease term. We had no material finance leases as of December 25, 2021 or December 26, 2020.

Practical Expedients and Accounting Policy Elections

We have made certain accounting policy elections and are using certain practical expedients permitted under GAAP, as follows:

• Include both lease and non-lease components as a single lease component, as non-lease components of contracts have not historically been material.

• Account for leases with terms of one year or less as short-term leases and, as such, are not included in the right-of-use assets or lease liabilities.

As of December 25, 2021 and December 26, 2020 there were no material variable lease costs or sublease income. Cash paid for operating leases was $9.2 million, $7.7 million and $6.0 million during

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fiscal 2021, fiscal 2020 and fiscal 2019, respectively, which are classified in operating activities on the Consolidated Statements of Cash Flows. The following table summarizes the lease expense:

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Operating lease expense	$	9,549	$	7,732	$	7,362
Short-term lease expense		3,172		3,647		4,547
Total lease expense	$	12,721	$	11,379	$	11,909

Supplemental balance sheet information related to our operating leases is as follows:

(in thousands)	December 25, 2021			December 26, 2020
Operating lease right-of-use assets	$	59,029		$	39,002
Other accrued liabilities	$	10,065		$	5,470
Long-term operating lease liabilities		52,443			37,083
Total operating lease liabilities	$	62,508		$	42,553
Weighted average remaining lease term (years)		7.55			8.94
Weighted average discount rate		3.73	%		5.55	%

The following table summarizes the maturities of our lease liabilities for all operating leases as of December 25, 2021:

(in thousands)	December 25, 2021
2022	$	12,097
2023		10,388
2024		8,933
2025		7,374
2026		7,293
Thereafter		26,867
Total lease payments		72,952
Less: Imputed interest		(10,444	)
Present value of lease liabilities	$	62,508

In February of 2022, we signed a binding letter of intent for warehouse and distribution services that increases future lease payments for operating leases by a total of approximately $53 million over 12 years.

6. Goodwill and Intangible Assets

Goodwill

Goodwill included the following:

(in thousands)	December 25, 2021			December 26, 2020
Balance at beginning of period	$	91,080		$	74,458
Goodwill acquired		108,945			16,622
Measurement period adjustments for Dayton acquisition		(2,130	)		—
Foreign currency translation		(563	)		—
Balance at end of period	$	197,332		$	91,080

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Intangible Assets

Intangible assets, subject to amortization, included the following:

			December 25, 2021						December 26, 2020
Intangible assets subject to amortization	Weighted Average Amortization Period (years)		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
(dollars in thousands)
Customer relationships		18.6	$	149,150	$	12,139	$	137,011	$	25,050	$	7,141	$	17,909
Trade names		10.0		17,760		2,592		15,168		6,760		1,585		5,175
Product Portfolio		19.9		25,300		460		24,840		—		—		—
Technology		6.9		2,167		571		1,596		2,167		323		1,844
Other		2.7		430		236		194		430		151		279
Total			$	194,807	$	15,998	$	178,809	$	34,407	$	9,200	$	25,207

Amortization expense associated with intangible assets was $6.5 million, $3.4 million and $2.6 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The estimated future amortization expense for intangible assets as of December 25, 2021, is summarized as follows:

(in thousands)
2022	$	11,954
2023		11,954
2024		11,810
2025		11,453
2026		10,418
Thereafter		121,220
Total	$	178,809

7. Long-Term Debt

On August 10, 2021, in connection with the acquisition of Dayton Parts, we entered into a new credit agreement that provides for a $600 million revolving credit facility, including a letter of credit sub-facility of up to $60 million (the “New Facility”). The New Facility replaced our previous $100 million revolving credit facility. The New Facility matures on August 10, 2026 and is guaranteed by the Company’s material domestic subsidiaries (together with the Company, the “Credit Parties”) and is supported by a security interest in substantially all of the Credit Parties’ personal property and assets, subject to certain exceptions.

Borrowings under the New Facility bear interest at a rate per annum equal to, at the Company’s option, either a LIBOR rate (subject to a 0.00% floor) or a base rate, in each case plus an applicable margin of, initially (i) in the case of LIBOR rate, 1.250% or (ii) in the case of base rate loans, 0.250%. The applicable margin for (i) base rate loans ranges from 0.000% to 1.000% per annum and (ii) for LIBOR loans ranges from 1.000% to 2.000% per annum, in each case, based on the Total Net Leverage Ratio (as defined in the New Facility). The commitment fee is initially equal to 0.150% and thereafter ranges from 0.125% to 0.250% based on the Total Net Leverage Ratio. As of December 25, 2021, the interest rate on the outstanding borrowings under the New Facility was 1.35% and the commitment fee was 0.15%.

The New Facility contains affirmative and negative covenants, including, but not limited to, covenants regarding capital expenditures, share repurchases, and financial covenants related to the ratio of consolidated interest expense to consolidated EBITDA and the ratio of total net indebtedness to consolidated EBITDA, each as defined by the New Facility. As of December 25, 2021, we were not in default with respect to the New Facility.

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8. Related Party Transactions

We lease our Colmar, PA facility and a portion of our Lewisberry, PA facility from entities in which Steven L. Berman, our Executive Chairman, and certain of his family members are owners. Each lease is a non-cancelable operating lease. Total rental payments to those entities under these lease arrangements were $2.3 million, $1.8 million, and $1.6 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The lease for our corporate headquarters in Colmar, PA was renewed during November 2016, effective as of January 1, 2018, and will expire on December 31, 2022. The lease for our Lewisberry, PA operating facility was signed in September 2020 and will expire on December 31, 2027.

We are a partner in a joint venture with one of our suppliers and own a minority interest in two other suppliers. Purchases from these companies, and from PTI prior to our full acquisition on January 2, 2020 were $18.9 million, $10.7 million and $23.2 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively.

9. Income Taxes

The components of the income tax provision (benefit) are as follows:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Current:
Federal	$	43,374		$	33,698		$	19,090
State		5,755			4,276			2,091
Foreign		1,075			491			(194	)
		50,204			38,465			20,987
Deferred:
Federal		(9,609	)		(8,475	)		2,084
State		(1,368	)		(893	)		(280	)
Foreign		(993	)		(231	)		(746	)
		(11,970	)		(9,599	)		1,058
Total	$	38,234		$	28,866		$	22,045

The following is a reconciliation of income taxes at the statutory tax rate to the Company's effective tax rate:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Federal taxes at statutory rate		21.0	%		21.0	%		21.0	%
State taxes, net of federal tax benefit		2.1			2.0			1.3
Research and development tax credit		(0.4	)		(0.6	)		(0.5	)
Federal permanent items		—			(0.2	)		(0.3	)
Effect of foreign operations		(0.2	)		0.1			(1.1	)
Other		—			(1.0	)		0.4
Effective tax rate		22.5	%		21.3	%		20.8	%

At December 25, 2021, we had $1.2 million of unrecognized tax benefits, all of which would affect our effective tax rate if recognized.

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The following table summarizes the change in unrecognized tax benefits for the three years ended December 25, 2021:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Balance at beginning of year	$	1,060		$	2,301		$	2,390
Reductions due to lapses in statutes of limitations		—			—			(200	)
Reductions due to tax positions settled		—			(1,308	)		—
Reductions due to reversals of prior year positions		(30	)		(202	)		(28	)
Additions based on tax positions taken during the current period		174			269			139
Balance at end of year	$	1,204		$	1,060		$	2,301

We recognize interest and penalties related to unrecognized tax benefits in income tax expense. As of December 25, 2021, accrued interest and penalties related to unrecognized tax benefits were immaterial.

Deferred income taxes result from timing differences in the recognition of revenue and expense between tax and financial statement purposes. The sources of temporary differences are as follows: 

(in thousands)	December 25, 2021			December 26, 2020
Assets:
Inventories	$	13,689		$	11,346
Accounts receivable		18,589			16,452
Operating lease liability		14,526			9,352
Accrued expenses		7,515			3,671
Net operating losses		1,892			304
Foreign tax credits		469			631
State tax credits		819			625
Capital loss carryforward		467			—
Total deferred tax assets		57,966			42,381
Valuation allowance		(1,837	)		(1,256	)
Net deferred tax assets		56,129			41,125
Liabilities:
Depreciation		14,541			10,586
Goodwill and intangible assets		45,522			12,419
Operating lease right of use asset		13,733			8,560
Other		309			929
Gross deferred tax liabilities		74,105			32,494
Net deferred tax (liabilities) assets	$	(17,976	)	$	8,631

 A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. When determining the amount of net deferred tax assets that are more likely than not to be realized, the Company assesses all positive and negative evidence. This evidence includes, but is not limited to, prior earnings history, expected future earnings, carryback and carryforward periods and the feasibility of ongoing tax strategies that could potentially enhance the likelihood of the realization of the deferred tax asset. Management has determined it was necessary to establish a valuation allowance against the foreign tax credits, various state tax credits and a capital loss from investment.

Based on our history of taxable income and our projection of future earnings, we believe that it is more likely than not that sufficient taxable income will be generated in the foreseeable future to realize the remaining net deferred tax assets.

During the year, we adjusted the valuation allowance against the deferred tax assets noted above by $0.6 million primarily due to the increase in capital loss carryforward.

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As of December 25, 2021, the Company has tax-effected net operating loss carryforwards of $1.7 million and $0.2 million for U.S federal and state jurisdictions, respectively. Tax-effected federal net operating losses of $0.1 million begin to expire in 2035. The remaining federal net operating losses do not expire. The state net operating loss carryforwards expire in various years starting in 2037.

We file income tax returns in the United States, Canada, China, India, and Mexico. All years before 2017 are closed for U.S. federal tax purposes. Tax years before 2017 are closed for the states in which we file. Tax years before 2018 are closed for tax purposes in Canada. Tax years before 2018 are closed for tax purposes in China. Tax years before 2016 are closed for tax purposes in Mexico. All tax years remain open for India.

The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020 in response to the COVID-19 pandemic. The CARES Act, among other things, allows net operating losses incurred in 2018, 2019, and 2020 to be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. The CARES Act also includes provisions relating to increased interest expense deductibility, refundable payroll tax credits, deferment of employer social security payments, and technical corrections to tax depreciation methods for qualified improvement property. Most significant to the Company is the accelerated depreciation on qualified improvement property. The Company continues to monitor Coronavirus-related federal and state relief opportunities. 

10. Commitments and Contingencies

Shareholders’ Agreement. A shareholders’ agreement was entered into in September 1990 and amended and restated on July 1, 2006. Under the agreement, each of the late Richard Berman, Steven Berman, Jordan Berman, Marc Berman, Fred Berman, Deanna Berman and additional shareholders named in the agreement has, among other things, granted the others of them rights of first refusal, exercisable on a pro rata basis or in such other proportions as the exercising shareholders may agree, to purchase shares of our common stock which any of them, or upon their deaths their respective estates, proposes to sell to third parties. We have agreed with these shareholders that, upon their deaths, to the extent that any of their shares are not purchased by any of these surviving shareholders and may not be sold without registration under the Securities Act of 1933, as amended (the "1933 Act"), we will use our best efforts to cause those shares to be registered under the 1933 Act. The expenses of any such registration will be borne by the estate of the deceased shareholder. The additional shareholders that are a party to the agreement are trusts affiliated with the late Richard Berman, Steven Berman, Jordan Berman, Marc Berman or Fred Berman, or each person’s respective spouse or children.

CBP Matter. During 2019, we commenced a voluntary disclosure process in which we committed to disclosing to U.S. Customs & Border Protection (“CBP”) certain product misclassifications and reimbursing CBP for any resulting underpayment of duties that were identified as part of a voluntary internal review conducted by the Company. The Company recorded an estimated liability of $2.8 million in its Statement of Operations for the year ended December 28, 2019, which represents the Company’s estimated underpayment of duties, after deducting its estimated overpayment of duties, to CBP due to misclassifications over the prior five-year period, which is the applicable statute of limitations, plus applicable interest.

In June 2020, we completed our internal review and submitted our prior disclosure statement to CBP, along with payment of $2.8 million for underpaid duties and interest. We have cooperated with CBP in connection with its review of our prior disclosure submission, including providing additional information as requested. CBP has not yet communicated that its review of our prior disclosure submission is completed.

Acquisitions. We have contingent consideration related to certain of our prior acquisitions due to the uncertainty of the ultimate amount of payment which will become due as earnout payments if performance targets are achieved. During the fiscal year ended December 25, 2021, we paid $10.4 million in contingent consideration in connection with prior acquisitions based upon performance targets. As of December 26,

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2020, we had accrued approximately $8.0 million, which represented our estimate at the time of the fair value of the estimated payments that would have become due in connection with these prior acquisitions if performance targets are achieved. Changes in the accrual balance during fiscal 2020 and fiscal 2019 were included in Selling, General and Administrative expenses in each of the respective periods. If the remaining performance targets are fully achieved, the maximum additional contingent payments to be made under the related acquisition agreements would be $3.6 million.

Other Contingencies. We are a party to or otherwise involved in legal proceedings that arise in the ordinary course of business, such as various claims and legal actions involving contracts, employment claims, competitive practices, intellectual property infringement, product liability claims and other matters arising out of the conduct of our business. In the opinion of management, none of the actions, individually or in the aggregate, taking into account relevant insurance coverage, would likely have a material financial impact on the Company and we believe the range of reasonably possible losses from current matters, taking into account relevant insurance coverage, is immaterial. However, legal matters are subject to inherent uncertainties and there exists the possibility that the ultimate resolution of any of these matters could have a material adverse impact on the Company’s cash flows, financial position and results of operations in the period in which any such effects are recorded.

11. Revenue Recognition

Business Description

We are a supplier of replacement parts and fasteners for passenger cars and light-, medium- and heavy-duty trucks in the automotive aftermarket. We group our products into four major classes: powertrain, automotive body, chassis, and hardware. Our products are sold primarily in the United States through automotive aftermarket retailers, including through their online platforms, national and regional local warehouse distributors and specialty markets, and salvage yards. We also distribute automotive replacement parts internationally, with sales primarily into Canada, Mexico, Europe, the Middle East, and Australia.

Our primary source of revenue is from contracts with and purchase orders from customers. In most instances, our contract with a customer is the customer’s purchase order. Upon acceptance of the purchase order, a contract exists with a customer as a sales agreement indicates approval and commitment of the parties, identifies the rights of both parties, identifies the payment terms, and has commercial substance. At this point, we believe it is probable that we will collect the consideration to which we will be entitled in exchange for the goods transferred to the customer.

For certain customers, we may also enter into a sales agreement that outlines pricing considerations as well as the framework of terms and conditions which apply to future purchase orders for that customer. In these situations, our contract with the customer is both the sales agreement as well as the specific customer purchase order. As our contract with a customer is typically for a single transaction or customer purchase order, the duration of the contract is typically one year or less. As a result, we have elected to apply certain practical expedients and omit certain disclosures of remaining performance obligations for contracts that have an initial term of one year or less as permitted by GAAP.

Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer, and collection is reasonably assured. We estimate the transaction price at the inception of a contract or upon fulfilling a purchase order, including any variable consideration, and will update the estimate for changes in circumstances.

We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits and other discounts in the period the related product revenue is recognized (“Customer Credits”). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Actual Customer Credits have not differed materially from estimated amounts for each

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period presented. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold. We have concluded that our estimates of variable consideration are not constrained according to the definition in the standard.

All of our revenue was recognized under the point of time approach during fiscal 2021, fiscal 2020 and fiscal 2019. Also, we do not have significant financing arrangements with our customers. Our credit terms are all less than one year. Lastly, we do not receive noncash consideration (such as materials or equipment) from our customers to facilitate the fulfillment of our contracts.

Practical Expedients and Accounting Policy Elections

We have made certain accounting policy elections and are using certain practical expedients permitted under GAAP, as follows:

• Not adjust the promised amount of consideration for the effects of a significant financing component as we expect, at contract inception, that the period between when we transfer a promised good or service to the customer and when the customer pays for that good or service will be one year or less.

• Expense costs to obtain a contract as incurred when the expected period of benefit, and therefore the amortization period, is one year or less.

• Exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by the entity for a customer, including sales, use, value-added, excise and various other taxes.

• Account for shipping and handling activities that occur after the customer has obtained control of a good as a fulfilment activity rather than a separate performance obligation.

Disaggregated Revenue

The following tables present our disaggregated net sales by type of major good / product line, and geography.

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Powertrain	$	539,235	$	442,221	$	395,975
Chassis		458,986		324,399		297,350
Automotive Body		288,599		266,699		251,506
Hardware		58,429		59,429		46,498
Net Sales	$	1,345,249	$	1,092,748	$	991,329

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Net Sales to U.S. Customers	$	1,269,050	$	1,031,183	$	929,908
Net Sales to Non-U.S. Customers		76,199		61,565		61,421
Net Sales	$	1,345,249	$	1,092,748	$	991,329

During fiscal 2021 and fiscal 2020, three customers each accounted for more than 10% of net sales and in the aggregate accounted for 54% and 56% of net sales in fiscal 2021 and fiscal 2020, respectively. In fiscal 2019, four customers each accounted for more than 10% of net sales and in the aggregate accounted for approximately 66% of net sales. 

12. Capital Stock

Controlling Interest by Officers, Directors and Family Members. As of December 25, 2021 and December 26, 2020, Steven Berman, the Executive Chairman of the Company, and members of his family

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beneficially owned approximately 17% and 18% of the outstanding shares of our common stock, respectively and could influence matters requiring approval of shareholders, including the election of the Board of Directors and the approval of significant transactions.

Undesignated Stock. We have 50,000,000 shares authorized of undesignated capital stock for future issuance. The designation, rights and preferences of such shares will be determined by our Board of Directors.

Incentive Stock Plan. Prior to May 16, 2018, we issued stock compensation grants under our 2008 Stock Option and Stock Incentive Plan. On May 16, 2018, our shareholders approved our 2018 Stock Option and Stock Incentive Plan (the “2018 Plan” or the “Plan”), which supersedes our 2008 Stock Option and Stock Incentive Plan. All future stock compensation grants will be issued under the 2018 Plan. Under the terms of the Plan, our Board of Directors may grant up to 1,200,000 shares of common stock in the form of shares of restricted stock, restricted stock units, stock appreciation rights and stock options, or combinations thereof, to officers, directors, employees, consultants and advisors. Grants under the Plan must be made within ten years of the date the Plan was approved. Stock options are exercisable upon the terms set forth in each grant agreement approved by the Board of Directors, but in no event more than ten years from the date of grant. Restricted stock and restricted stock units vest in accordance with the terms set forth in each applicable award agreement approved by our Board of Directors. At December 25, 2021, 727,834 shares were available for grant under the Plan.

Restricted Stock Awards (“RSAs”) and Restricted Stock Units (“RSUs”)

Prior to March 2020, we issued RSAs to certain employees and members of our Board of Directors. Grants were made in the form of time-based RSAs and performance-based RSAs. For all RSAs, we retain the restricted stock, and any dividends paid thereon, until the vesting restrictions have been met. For time-based RSAs, compensation cost is recognized on a straight-line basis over the vesting period and is calculated using the closing price per share of our common stock on the grant date. Prior to 2019, we issued performance-based RSAs tied to growth in adjusted pre-tax income. Compensation costs related to those awards is recognized over the performance period and is calculated using the closing price per share of our common stock on the grant date and an estimate of the probable outcome of the performance conditions as of the reporting date. In 2019, we introduced performance-based RSAs that vest based on our total shareholder return ranking relative to the S&P Mid-Cap 400 Growth Index over a three-year performance period. For those awards, compensation cost is recognized on a straight-line basis over the performance period and is calculated using the simulated fair value per share of our common stock based on the application of a Monte Carlo simulation model. This valuation technique includes estimating the movement of stock prices and the effects of volatility, interest rates and dividends.

Beginning in March 2020, we began issuing RSUs to certain employees and members of our Board of Directors. For time-based RSUs, compensation cost is recognized on a straight-line basis over the vesting period and is calculated using the closing price per share of our common stock on the grant date. Also, in March 2020, we began issuing performance-based RSUs that vest based on our total shareholder return ranking relative to the S&P Mid-Cap 400 Growth Index over a three-year performance period. For performance-based RSUs tied to total shareholder return, compensation cost is recognized on a straight-line basis over the performance period and is calculated using the simulated fair value per share of our common stock based on the application of a Monte Carlo simulation model as discussed in the paragraph above.

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The following table summarizes the weighted average valuation assumptions used to calculate the fair value of total shareholder return performance-based RSAs and performance-based RSUs granted:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Share price	$	101.45		$	61.68		$	82.03
Expected dividend yield		0.0	%		0.0	%		0.0	%
Expected stock price volatility		38.9	%		31.5	%		27.7	%
Risk-free interest rate		0.2	%		0.9	%		2.5	%
Expected life	2.8 years			2.8 years			2.8 years

The share price is the company’s closing share price as of the valuation date. The risk-free rate is based on the U.S. Treasury security with terms equal to the expected time of vesting as of the grant date. The weighted-average grant-date fair value of total shareholder return performance-based RSAs and RSU’s granted during fiscal 2021, fiscal 2020, and fiscal 2019 were $131.02, $65.09, and $81.44, respectively.

Compensation cost related to performance-based and time-based RSAs and RSUs was $6.1 million, $3.2 million and $2.1 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively, and was included in selling, general and administrative expense in the Consolidated Statements of Operations. No cost was capitalized during fiscal 2021, fiscal 2020 or fiscal 2019.

The following table summarizes our RSA and RSU activity for the three years ended December 25, 2021: 

	Shares			Weighted Average Fair Value
Balance at December 29, 2018		170,737		$	63.94
Granted		92,396		$	81.92
Vested		(41,586	)	$	55.72
Canceled		(44,056	)	$	58.03
Balance at December 28, 2019		177,491		$	76.70
Granted		83,875		$	64.66
Vested		(27,477	)	$	71.25
Canceled		(16,154	)	$	76.44
Balance at December 26, 2020		217,735		$	72.77
Granted		81,694		$	106.23
Vested		(45,970	)	$	70.62
Canceled		(46,782	)	$	74.85
Balance at December 25, 2021		206,677		$	85.97

As of December 25, 2021, there was approximately $9.7 million of unrecognized compensation cost related to unvested RSAs and RSUs, which is expected to be recognized over a weighted-average period of approximately 2.3 years.

Cash flows resulting from tax deductions in excess of the tax effect of compensation cost recognized in the financial statements are classified as operating cash flows. The excess tax benefit generated from RSAs and RSUs was immaterial for all periods presented.

Stock Options

We grant stock options to certain employees. We expense the grant-date fair value of stock options as compensation cost over the vesting or performance period. Compensation cost charged against income for stock options was $1.3 million, $1.0 million and $0.7 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively, and was included in selling, general and administrative expense in the Consolidated Statements of Operations. No cost was capitalized during fiscal 2021, fiscal 2020 or fiscal 2019.

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We used the Black-Scholes option valuation model to estimate the fair value of stock options granted. Expected volatility and expected dividend yield are based on the actual historical experience of our common stock. The expected life represents the period of time that options granted are expected to be outstanding and was calculated using historical option exercise data. The risk-free rate is based on the U.S. Treasury security with terms equal to the expected time of exercise as of the grant date.

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of options granted and the associated weighted-average grant-date fair values:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Expected dividend yield		0	%		0	%		0	%
Expected stock price volatility		34	%		29	%		28	%
Risk-free interest rate		0.7	%		0.8	%		2.3	%
Expected life of options	5.3 years			5.3 years			5.4 years
Weighted-average grant-date fair value	$	31.68		$	17.84		$	24.32

The following table summarizes our stock option activity for the three years ended December 25, 2021:

	Shares			Option Price per Share	Weighted Average Price		Weighted Average Remaining Terms (years)		Aggregate Intrinsic Value (in thousands)
Balance at December 29, 2018		188,469		$7.74 – $82.94	$	66.14
Granted		44,025		$73.72 – $84.93	$	81.84
Exercised		(38,009	)	$7.74 – $78.76	$	58.96
Canceled		(12,773	)	$41.59 – $82.94	$	75.52
Balance at December 28, 2019		181,712		$41.59 – $82.94	$	70.78
Granted		109,352		$61.68 – $83.06	$	63.25
Exercised		(31,521	)	$41.59 – $82.94	$	50.77
Canceled		(8,764	)	$61.68 – $74.21	$	65.24
Balance at December 26, 2020		250,779		$41.59 – $84.93	$	70.21
Granted		59,578		$95.98 – $103.61	$	101.36
Exercised		(67,504	)	$41.59 – $82.94	$	70.04
Canceled		(9,457	)	$61.68 – $101.45	$	79.02
Balance at December 25, 2021		233,396		$61.68 – $103.61	$	77.85		5.5	$	6,664
Exercisable at December 25, 2021		70,488		$61.68 – $84.93	$	73.40		4.1	$	2,328

As of December 25, 2021, there was approximately $1.7 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of approximately 2.3 years.

Cash received from option exercises was $2.5 million, $1.2 million, and $0.1 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The tax benefit generated from option exercises was immaterial for all periods presented.

Employee Stock Purchase Plan. In May 2017, our shareholders approved the Dorman Products, Inc. Employee Stock Purchase Plan (the “ESPP”), which makes available 1,000,000 shares of our common stock for sale to eligible employees. The purpose of the ESPP, which is qualified under Section 423 of the Internal Revenue Service Code of 1986, as amended, is to encourage stock ownership through payroll deductions and limited cash contributions by our employees. These contributions are used to purchase shares of the Company’s common stock at a 15% discount from the lower of the market price at the beginning or end of the purchase window. Beginning in March 2018, share purchases under the plan were

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made twice annually, with the purchase windows being April to September and October to March. In 2021, the decision was made to modify the timing of those two purchase windows to align them with the calendar year. As a result, beginning January 2022, the two purchase windows are January to June and July to December. In order to effectuate that alignment, the purchase window beginning in October 2021 was shortened from six months to three months and ended December 2021. There were 40,303 shares, 79,089 shares and 21,200 shares purchased under this plan during fiscal 2021, fiscal 2020 and fiscal 2019, respectively. Compensation cost under the ESPP plan was $0.9 million, $3.3 million and $0.3 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The tax benefit generated from ESPP purchases was immaterial in fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

Common Stock Repurchases. We periodically repurchase, at the then current market price, and cancel common stock issued to the Dorman Products, Inc. 401(k) Plan and Trust (the “401(k) Plan”). 401(k) Plan participants can no longer purchase shares of Dorman common stock as an investment option under the 401(k) Plan. Shares are generally purchased from the 401(k) Plan when participants sell units as permitted by the 401(k) Plan or elect to leave the 401(k) Plan upon retirement, termination or other reasons. The following table summarizes the repurchase and cancellation of common stock:

	For the Year Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		11,452		23,360		22,380
Total cost of shares repurchased and canceled (in thousands)	$	1,172	$	1,895	$	1,953
Average price per share	$	102.38	$	81.12	$	87.26

At December 25, 2021, the 401(k) Plan held 183,916 shares of our common stock.

Share Repurchase Program. On December 12, 2013 we announced that our Board of Directors authorized a share repurchase program, authorizing the repurchase of up to $10 million of our outstanding common stock by the end of 2014. Through several expansions and extensions, our Board of Directors has expanded the program up to $500 million and extended the program through December 31, 2022. Under this program, share repurchases may be made from time to time depending on market conditions, share price, share availability and other factors at our discretion. The share repurchase program does not obligate us to acquire any specific number of shares. At December 25, 2021, $145.6 million was available for repurchase under this program.

The following table summarizes the repurchase and cancellation of common stock:

	For the Years Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		605,628		439,275		499,564
Total cost of shares repurchased and canceled (in thousands)	$	61,583	$	36,781	$	39,387
Average price per share	$	101.68	$	83.73	$	78.84

401(k) Retirement Plans. The 401(k) Plan and the Dayton Parts, LLC 401(k) Savings Plan (the “Dayton 401(k) Plan”) are both defined contribution profit sharing and 401(k) plans that together cover substantially all of our employees as of December 25, 2021. Annual company contributions under both the 401(k) Plan and Dayton 401(k) Plan are discretionary in nature, in accordance with the respective plan documents. Total expense related to the 401(k) Plan and Dayton 401(k) Plan were $6.3 million, $5.7 million and $4.5 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. 

13. Earnings Per Share

Basic earnings per share was calculated by dividing our net income by the weighted average number of common shares outstanding during the period, excluding unvested RSAs which are considered to be contingently issuable. To calculate diluted earnings per share, common share equivalents are added to the

64

weighted average number of common shares outstanding. Common share equivalents are calculated using the treasury stock method and are computed based on outstanding stock-based awards. Stock-based awards of approximately 14,250 shares, 35,975 shares and 92,000 shares were excluded from the calculation of diluted earnings per share for fiscal 2021, fiscal 2020 and fiscal 2019, respectively, as their effect would have been anti-dilutive.

The following table sets forth the computation of basic earnings per share and diluted earnings per share:  

	For the Year Ended
(in thousands, except per share data)	December 25, 2021		December 26, 2020		December 28, 2019
Numerator:
Net income	$	131,532	$	106,870	$	83,762
Denominator:
Weighted average basic shares outstanding		31,810		32,280		32,606
Effect of compensation awards		151		93		82
Weighted average diluted shares outstanding		31,961		32,373		32,688
Earnings Per Share:
Basic	$	4.13	$	3.31	$	2.57
Diluted	$	4.12	$	3.30	$	2.56

14. Business Segments

We have determined that our business comprises a single reportable operating segment, namely, the sale of replacement parts and fasteners for passenger cars and, light-, medium-, and heavy-duty trucks in the automotive aftermarket industry.

Net sales to countries outside the United States, primarily to Canada and Mexico, and to a lesser extent into Europe, the Middle East, and Australia, in fiscal 2021, fiscal 2020 and fiscal 2019 were $76.2 million, $61.6 million and $61.4 million, respectively.

Net long-lived assets outside the United States, consisting of net property, plant and equipment was $1.0 million as of December 25, 2021. There were no long-lived assets outside of the United States as of December 26, 2020. 

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ITEM 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.

None

ITEM 9A. Controls and Procedures.

Conclusion Regarding the Effectiveness of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to provide reasonable assurance that information required to be disclosed in reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms and accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosures.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, conducted an evaluation, as of the end of the period covered by this report, of the effectiveness of our disclosure controls and procedures, as such term is defined in Exchange Act Rule 13a-15(e). Based on this evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that, as of the end of the period covered by this report, our disclosure controls and procedures, as defined in Rule 13a-15(e), were effective at the reasonable assurance level.

On August 10, 2021, we completed our acquisition of DPL Holding Corporation (“Dayton Parts”). We are in the process of evaluating the existing controls and procedures of Dayton Parts and integrating Dayton Parts into our internal control over financial reporting. In accordance with SEC Staff guidance permitting a company to exclude an acquired business from management’s assessment of the effectiveness of internal control over financial reporting for one year following the date on which the acquisition is completed, we have excluded Dayton Parts from our assessment of the effectiveness of internal control over financial reporting as of December 25, 2021. Dayton Parts represented approximately 26% of the Company’s consolidated total assets as of December 25, 2021, and approximately 6% of the Company’s consolidated net sales for the year ended December 25, 2021. Refer to Note 2 to the Consolidated Financial Statements for additional information.

Management's Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Exchange Act Rule 13a-15(f). Management, with the participation of our Chief Executive Officer and Chief Financial Officer, conducted an evaluation, as of December 25, 2021, of the effectiveness of our internal control over financial reporting based on the framework in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this evaluation, management concluded that our internal control over financial reporting was effective as of December 25, 2021.

Our independent registered public accounting firm, KPMG LLP, has issued an attestation report on our internal control over financial reporting. Their report appears below.

Changes in Internal Control Over Financial Reporting

Except for the acquisition of Dayton Parts noted above, there was no change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the quarter ended December 25, 2021, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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Report of Independent Registered Public Accounting Firm

To the Shareholders and Board of Directors

Dorman Products, Inc.:

Opinion on Internal Control Over Financial Reporting

We have audited Dorman Products, Inc. and subsidiaries' (the Company) internal control over financial reporting as of December 25, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 25, 2021, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheets of the Company as of December 25, 2021 and December 26, 2020, the related consolidated statement of operations and comprehensive income, shareholders’ equity, and cash flows for each of the years in the three-year period ended December 25, 2021, and the related notes and financial statement schedule II (collectively, the consolidated financial statements), and our report dated February 22, 2022 expressed an unqualified opinion on those consolidated financial statements.

The Company acquired DPL Holding Corporation during 2021, and management excluded from its assessment of the effectiveness of the Company’s internal control over financial reporting as of December 25, 2021, DPL Holding Corporation’s internal control over financial reporting associated with 26% of total assets and 6% of total net sales included in the consolidated financial statements of the Company as of and for the year ended December 25, 2021. Our audit of internal control over financial reporting of the Company also excluded an evaluation of the internal control over financial reporting of DPL Holding Corporation.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audit also included performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation

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of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ KPMG LLP

Philadelphia, Pennsylvania

February 22, 2022

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ITEM 9B. Other Information.

None

ITEM 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections.

None

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PART III

ITEM 10. Directors, Executive Officers and Corporate Governance.

Except for the information provided in PART I – ITEM 4.1, “Executive Officers of the Registrant” and as set forth below, the required information is incorporated by reference from our definitive proxy statement for our 2022 Annual Meeting of Shareholders, including, but not necessarily limited to, the sections entitled “Proposal I: Election of Directors,” “Committees of the Board of Directors – Audit Committee” and “Security Ownership of Certain Beneficial Owners and Management – Delinquent Section 16(a) Reports.”

We have adopted a written code of ethics, the “Dorman Products, Inc. Code of Ethics and Business Conduct” that is applicable to our directors, officers and employees. We have also adopted a written code of ethics, “Code of Ethics for Senior Financial Officers,” which applies to our Chief Executive Officer, Chief Financial Officer, Principal Accounting Officer, Controller and any other person performing similar functions (the “Code”). Each of these codes is posted on our website www.dormanproducts.com. Dorman will provide to any person without charge, upon request, a copy of the Code. Requests for copies of the Code should be directed to: Attn: Secretary, Dorman Products, Inc., 3400 East Walnut Street, Colmar, PA 18915. We intend to disclose any changes in or waivers from the Code on our website at www.dormanproducts.com. The information on the website is not and should not be considered part of this Form 10-K and is not incorporated by reference in this Form 10-K.

ITEM 11. Executive Compensation.

The required information is incorporated by reference from our definitive proxy statement for our 2022 Annual Meeting of Shareholders, including, but not necessarily limited to, the sections entitled “Director Compensation,” “Executive Compensation: Compensation Discussion and Analysis,” “Executive Compensation: Compensation Tables,” “Risk Assessment in Compensation Policies and Practices for Employees,” and “Compensation Committee Interlocks and Insider Participation.”

ITEM 12. Security Ownership of Certain Beneficial Owners and Management and Related Shareholder Matters.

Except for the information set forth below, the required information is incorporated by reference from our definitive proxy statement for our 2022 Annual Meeting of Shareholders, including, but not necessarily limited to, the section entitled “Security Ownership of Certain Beneficial Owners and Management – Security Ownership Table.”

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Equity Compensation Plan Information

The following table details information regarding our existing equity compensation plans as of December 25, 2021:

					(c)
Plan Category	(a) Number of securities to be issued upon exercise of outstanding options, warrants and rights		(b) Weighted- average exercise price of outstanding options, warrants and rights		Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a))
Equity compensation plans approved by    security holders
2008 Stock Option and Stock Incentive Plan		84,322	$	71.31		—
2018 Stock Option and Stock Incentive Plan		166,457	$	69.69		853,471
Dorman Products, Inc. Employee Stock Purchase Plan		—		—		878,536
Equity compensation plans not approved by    security holders		—		—		—
Total		250,779				1,732,007

ITEM 13. Certain Relationships and Related Transactions, and Director Independence.

The required information is incorporated by reference from our definitive proxy statement for our 2022 Annual Meeting of Shareholders, including, but not necessarily limited to, the sections entitled “Certain Relationships and Related Transactions” and “Corporate Governance - The Board of Directors and Director Independence.”

ITEM 14. Principal Accounting Fees and Services.

The required information is incorporated by reference from our definitive proxy statement for our 2022 Annual Meeting of Shareholders, including, but not necessarily limited to, the sections entitled “Principal Accountant Fees and Services” and “Pre-Approval Policies and Procedures.”

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PART IV

ITEM 15. Exhibits, Financial Statement Schedules.

(a)(1) Consolidated Financial Statements. Our Consolidated Financial Statements and related documents are provided in PART II - ITEM 8, “Financial Statements and Supplementary Data” of this Annual Report on Form 10-K:

Report of Independent Registered Public Accounting Firm (PCAOB ID: 185).

Consolidated Statements of Operations for the fiscal years ended December 25, 2021, December 26, 2020 and December 28, 2019.

Consolidated Balance Sheets as of December 25, 2021 and December 26, 2020.

Consolidated Statements of Shareholders' Equity for the fiscal years ended December 25, 2021, December 26, 2020 and December 28, 2019.

Consolidated Statements of Cash Flows for the fiscal years ended December 25, 2021, December 26, 2020, and December 28, 2019.

Notes to Consolidated Financial Statements.

(a)(2) Consolidated Financial Statement Schedules. The following consolidated financial statement schedule of the Company and related documents are filed with this Annual Report on Form 10-K:

Schedule II - Valuation and Qualifying Accounts.

(a)(3) Exhibits. Reference is made to ITEM 15(b) below.

(b) Exhibits. The Exhibit Index, which immediately precedes the signature page, is incorporated by reference into this Report.

(c) Financial Statement Schedule. Reference is made to ITEM 15(a)(2) above.

ITEM 16. Form 10-K Summary

None

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Number	Title
2.1	Agreement and Plan of Merger, dated June 25, 2021, by and among Dorman Products, Inc., Senators Merger Sub, Inc., DPL Holding Corporation and SBF II Representative Corp., solely in its capacity as Equityholder Representative. Incorporated by reference to Exhibit 2.1 to the company’s Current Report on Form 8-K filed on June 28, 2021.
3.1	Amended and Restated Articles of Incorporation, as amended. Incorporated by reference to Exhibit 3.1 to the Company’s Current Report on Form 8-K filed on May 19, 2017.
3.2	Dorman Products, Inc. Amended and Restated By-Laws, as amended April 7, 2020. Incorporated by reference to Exhibit 3.2 to the Company's Current Report on Form 8-K filed on April 9, 2020.
4.1	Specimen Common Stock Certificate of the Company. Incorporated by reference to Exhibit 4.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).
4.2	Amended and Restated Shareholders' Agreement dated as of July 1, 2006. Incorporated by reference to Exhibit 4.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 27, 2008.
4.3	Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934. Incorporated by reference to Exhibit 4.3 to the Company’s Current Report on Form 10-K filed on February 22, 2021.
10.1	Lease Agreement, dated December 29, 2012, between the Company and BREP I, for premises located at 3400 East Walnut Street, Colmar, Pennsylvania. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on November 16, 2012.
10.1.1	Lease Renewal Notice, dated November 14, 2016, between the Company and BREP I, for premises located at 3400 East Walnut Street, Colmar, Pennsylvania. Incorporated by reference to Exhibit 10.1 filed with the Company’s Current Report on Form 8-K filed on November 14, 2016.
10.2	Credit Agreement dated as of December 7, 2017, by and between the Company and Wells Fargo Bank, National Association. Incorporated by reference to Exhibit 10.1 to the Company's Current Report on Form 8-K filed on December 8, 2017.
10.3	Credit Agreement, dated August 10, 2021 by and among Dorman Products, Inc., the lenders from time to time party thereto, and Bank of American, N.A., as administrative agent. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on August 10, 2021.
10.4†	Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).
10.4.1†	Form of Incentive Stock Option Agreement pursuant to the Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).

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Number	Title
10.4.2†	Form of Non-Qualified Stock Option Agreement for Officers and Other Key Employees pursuant to the Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).
10.4.3†	Form of Non-Qualified Stock Option Agreement for Outside Directors and Important Consultants and/or Advisors pursuant to the Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).
10.4.4†	Form of Restricted Stock Agreement pursuant to the Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Registration Statement on Form S-8 (Registration No. 333-160979).
10.4.5†	Amendment No. 1 to the Dorman Products, Inc. 2008 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 28, 2013.
10.4.6†	Amendment No. 2 to the Dorman Products, Inc. 2008 Stock Option Plan and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on May 20, 2014.
10.5†	Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit A of the Company’s Definitive Proxy Statement filed on Schedule 14A on March 22, 2018.
10.5.1†	Form of Non-Qualified Stock Option Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on May 14, 2018.
10.5.2†	Form of Incentive Stock Option Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on May 14, 2018.
10.5.3†	Form of Restricted Stock Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on May 14, 2018.
10.5.4†	Form of Performance Restricted Stock Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.4 to the Company’s Current Report on Form 8-K filed on May 14, 2018.
10.5.5†	Form of Restricted Stock Unit Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.5 to the Company’s Current Report on Form 8-K filed on May 14, 2018.
10.5.6†	Form of Performance Restricted Stock Unit Award for grants under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.6 to the Company’s Current Report on Form 8-K filed on May 14, 2018.

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Number	Title
10.5.7†	Form of 2019 Chief Executive Officer Restricted Stock Award Agreement under the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 25, 2019.
10.5.8†	Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 2, 2020.
10.5.9†	Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on March 2, 2020.
10.5.10†	Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.3 to the Company’s Current Report on Form 8-K filed on March 2, 2020.
10.5.11†	Form of Dorman Products, Inc. Restricted Stock Unit Award for Non-Employee Directors Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 10-Q for the quarter ended June 27, 2020.
10.5.12†	Amended Form of Dorman Products, Inc. Non-Qualified Stock Option Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.
10.5.13†	Amended Form of Dorman Products, Inc. Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.
10.5.14†	Amended Form of Dorman Products, Inc. Performance Restricted Stock Unit Award Pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan.
10.6†	Dorman Products, Inc. Nonqualified Deferred Compensation Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 11, 2011.
10.7†	Dorman Products, Inc. 2018 Cash Bonus Plan. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 22, 2018.
10.8†	Amended and Restated Employment Agreement, dated December 28, 2015, between the Company and Steven Berman. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on December 28, 2015.
10.9†	Offer Letter, dated May 2, 2016, between the Company and Kevin Olsen. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on May 25, 2016.
10.10†	Employment Agreement, dated January 10, 2019, between the Company and Kevin Olsen. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 11, 2019.

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Number	Title
10.11†	Amended and Restated Employment Agreement between the Company and Kevin M. Olsen dated December 13, 2021. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on December 13, 2021.
10.12†	Offer Letter, dated January 24, 2019, between the Company and David Hession. Incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on February 19, 2019.
10.13†	Separation Agreement, dated February 25, 2011, between the Company and Jeffrey Darby. Incorporated by reference to Exhibit 10.10 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 28, 2013.
10.14†	Offer Letter, dated April 8, 2019, between the Company and Joseph P. Braun. Incorporated by reference to Exhibit 10.17 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 28, 2019.
10.15†	Dorman Products, Inc. Executive Severance Plan. Incorporated by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K filed on December 13, 2021.
10.16†	Non-Disclosure, Invention Assignment and Restrictive Covenant Agreement – Michael B. Kealey.
21	Subsidiaries of the Company.
23	Consent of Independent Registered Public Accounting Firm.
31.1	Certification of Chief Executive Officer as required by Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer as required by Section 302 of the Sarbanes-Oxley Act of 2002.
32	Certification of Chief Executive and Chief Financial Officer as required by Section 906 of the Sarbanes-Oxley Act of 2002.
101	The financial statements from the Dorman Products, Inc. Annual Report on Form 10-K for the year ended December 25, 2021, formatted Inline XBRL (eXtensible Business Reporting Language): (i) the Consolidated Statements of Operations for the years ended December 25, 2021, December 26, 2020 and December 28, 2019; (ii) the Consolidated Balance Sheets as of December 25, 2021 and December 26, 2020; (iii) the Consolidated Statements of Shareholders’ Equity for the years ended December 25, 2021, December 26, 2020 and December 28, 2019; (iv) the Consolidated Statements of Cash Flows for the years ended December 25, 2021, December 26, 2020 and December 28, 2019; and (v) the Notes to Consolidated Financial Statements.
104	The cover page from the Company’s Annual Report on Form 10-K as of and for the fiscal year ended  December 25, 2021, formatted in Inline XBRL (included as Exhibit 101).

† Management Contracts and Compensatory Plans, Contracts or Arrangements.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	Dorman Products, Inc.
	By: /s/ Kevin M. Olsen
Date: February 22, 2022	Kevin M. Olsen President and Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ Kevin M. Olsen	President, Chief Executive Officer and Director	February 22, 2022
Kevin M. Olsen	(principal executive officer)
/s/ David M. Hession	Senior Vice President, Chief Financial Officer and Treasurer	February 22, 2022
David M. Hession	(principal financial and accounting officer)
/s/ Steven L. Berman	Executive Chairman	February 22, 2022
Steven L. Berman /s/ Lisa M. Bachmann Lisa M. Bachmann	Director	February 22, 2022
/s/ John J. Gavin	Director
John J. Gavin		February 22, 2022
/s/ Paul R. Lederer	Director
Paul R. Lederer		February 22, 2022
/s/ Richard T. Riley	Director
Richard T. Riley		February 22, 2022
/s/ Kelly A. Romano	Director
Kelly A. Romano		February 22, 2022
/s/ G. Michael Stakias	Director
G. Michael Stakias		February 22, 2022
/s/ J. Darrell Thomas	Director
J. Darrell Thomas		February 22, 2022

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SCHEDULE II: Valuation and Qualifying Accounts

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Allowance for doubtful accounts:
Balance, beginning of period	$	1,260		$	957		$	982
Provision		177			315			39
Charge-offs		(111	)		(111	)		(64	)
Acquisitions and other		—			99			—
Balance, end of period	$	1,326		$	1,260		$	957
Allowance for customer credits:
Balance, beginning of period	$	155,751		$	105,950		$	90,596
Provision		334,615			308,783			274,243
Charge-offs		(302,286	)		(258,982	)		(258,889	)
Balance, end of period	$	188,080		$	155,751		$	105,950

78

EX-10.5.12

Exhibit 10.5.12

DORMANPRODUCTS,INC.

NON-QUALIFIED STOCK OPTION AWARD PURSUANT TO THEDORMANPRODUCTS,INC.2018STOCKOPTIONANDSTOCKINCENTIVEPLAN

*****

Participant:ShallmeanthepersontowhomthisAwardismadepursuanttothetermsofthePlan(definedbelow).

Grant Date:Shall be the date set forth under “Award Information” on the “Award Acceptance”page in Participant’s personal web portal award administered by Equiniti Trust Company (EQ),whichpageis incorporated herein(the“AcceptancePage”).

*****

THIS NON-QUALIFIED STOCK OPTION AWARD (this “Award”) dated as ofthe Grant Date is entered into by and between Dorman Products, Inc. (the “Company”) andParticipant.

1.Grant of Non-Qualified Stock Option.Effective as of the Grant Date,pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”),the Company hereby grants to Participant a Non-Qualified Option to purchase such number ofshares of Common Stock (the “Option”) at such price (the “Exercise Price”) as set forth on theAcceptance Page, subject to the terms and conditions set forth in this Award and the Plan. [ThisAwardisinconsiderationforParticipant’sacceptanceofandagreementtotherestrictivecovenantsset forth in Section 10 ofthis Award.]

2. Vestingof Option.

(a)Subject to the provisions of Sections 2(b) and (c), the Option shallvest [    ]% on [date][each [    ] anniversary of the Grant Date beginning on the [    ] anniversary of the Grant Date] (each a “Vesting Date”), provided that Participant remains employed by orproviding service to the Company on such Vesting Date.The vesting of portions of the Optionshall be cumulative, but shall not exceed 100% of the Shares subject to the Option.If theforegoing schedule would produce fractional Shares, the number of Shares that vest shall berounded down to the nearest whole Share and the fractional Shares will be accumulated so thattheresultingwholeSharewillbeincluded inthenumberofSharesthat becomevestedonthelastVestingDate.

(b)Upon a Change in Control, 100% of the unvested portion of theOptionshall vest and becomeexercisable.

(c)UponParticipant’sterminationofemploymentorserviceforanyofthe following reasons, the unvested portion of the Option shall vest and become exercisable asindicated:

(i) 100%asofthedateof Participant’sdeath; or

(ii) 100%as ofthedate ofParticipant’s termination of employment

orserviceduetoDisability.

Except as provided above, upon the termination of employment or service ofParticipant, any unvested portion of the Option will immediately and automatically, without anyactionon thepart oftheCompany,beforfeited and cancelled.

3. TerminationoftheOption.

(a)The Option shall remain exercisable until the expiration date setforth on the Acceptance Page (the “Expiration Date”), unless it is terminated at an earlier datepursuantto theprovisions ofthis Award orthePlan.

(b)IntheeventofterminationofParticipant’semploymentorservices,the Option, to the extent vested as of the date thereof (including pursuant to Sections 2(b) or 2(c)above)shallterminateimmediatelyafterthefirsttooccurof:(i)theExpirationDate;(ii)oneyearafterterminationofParticipant’semploymentorserviceonaccountofdeathorDisability;(iii)90daysafterterminationofParticipant’semploymentorserviceforanyreasonotherthanonaccountofdeath,DisabilityorforCause;and(iv)immediatelyuponterminationofParticipant’semployment or service for Cause.In the event that Participant’s termination of employment orservice by the Company is for Cause, upon a determination by the Committee, Participant shallautomatically forfeit all Shares otherwise subject to delivery upon exercise of an Option but forwhichtheCompanyhasnotyetdeliveredtheShares,uponrefundbytheCompanyoftheExercisePrice(to theextent paid).

4.Automatic Exercise.If the Option remains unexercised, in whole or inpart, immediately before the time at which the Option is scheduled to expire in accordance withthe terms and conditions of this Award and the Plan, the Option shall be deemed automaticallyexercised in accordance with and subject to the terms and conditions set forth in Section 7(i)(ii)ofthePlan.

5.Method of Exercise.Participant may exercise the Option by providingwritten notice to the Company through the Acceptance Page.Each such exercise shall beirrevocablewhengiven.

6.Payment for Shares.Full payment for Shares purchased upon the exerciseofanOptionmaybemadeinanycombinationof,inaccordancewithSection7(g)ofthePlan:

(i) cash, (ii) by check payable to the order of the Company; (iii) by the delivery of Shares thenownedbyParticipant(orbyattestationofsuchownership); or(iv)viacashless exercise.

7. TaxWithholding;SecuritiesLaws.

(a)AllobligationsoftheCompanyunderthisAwardshallbesubjecttothe rights of the Company as set forth in the Plan to withhold amounts required by law for anyFederal Insurance Contributions Act (FICA), federal income, state, local or other tax liabilities(“Withholding Taxes”). Whenever the Company proposes or is required to deliver or transferSharesinconnectionwiththeexerciseoftheOption,theCompanyshallhavetherightto

(i) withholdSharessubjecttoParticipant’sexerciseoftheOptionasprovidedinSection7(g)(iv)

Page2of6

 

and15 of the Plan to satisfy any Withholding Taxes, (ii) require Participant to remit to theCompany an amount sufficient to satisfy any Withholding Taxes prior to the delivery or transferof such Shares or (iii) take whatever action it deems necessary to protect its interests with respecttotaxliabilities.

(b)The obligation of the Company to deliver Shares shall also besubject to the condition that if at any time the Company shall determine in its discretion that thelisting, registration or qualification of the Shares upon any securities exchange or under any stateor federal law, or the consent or approval of any governmental regulatory body is necessary ordesirable as a condition of, or in connection with, the issuance of Shares, the Shares may not beissued in whole or in part unless such listing, registration, qualification, consent or approval shallhavebeen effected orobtained freeofanyconditions not acceptabletotheCompany.

8.Assignments,TransfersandSuccessorsandAssigns.Therightsandinterests of Participant under this Award may not be assigned, sold, exchanged, transferred,pledged,hypothecatedor otherwise disposedofexceptby willor thelawsof descentanddistribution.Therightsandprotections oftheCompanyhereundershall extendtoanysuccessorsor assigns of the Company and to the Company’s parent(s) and each of its Affiliates. This Awardmaybeassigned bytheCompanywithout Participant’s consent.

9. Miscellaneous.

(a)This Award shall not confer upon Participant any right to continuein the service as an employee, officer, director, consultant or advisor of the Company or anySubsidiaryCompany.

(b)The address for Participant to which notice, demands and othercommunications to be given or delivered under or by reason of the provisions hereof shall beParticipant’s address as reflected in the Company’s personnel records, or such other address asParticipant mayprovideto theCompanybywritten notice.

(c)The validity, performance, construction and effect of this Awardshall be governed by the laws of the Commonwealth of Pennsylvania, without giving effect toprinciplesofconflicts oflaw.

(d)ParticipantherebyirrevocablyandunconditionallyconsentstosubmittotheexclusivejurisdictionofthecourtsoftheCommonwealthofPennsylvaniaandoftheUnitedStatesofAmerica,ineachcaselocatedinPhiladelphia,Pennsylvania,foranyactions,suitsor proceedings arising out of or relating to this Award and the transactions contemplated hereby(“Litigation”) and agrees not to commence any Litigation except in any such court, and furtheragrees that service of process, summons, notice or document by U.S. registered mail to hisrespective address shall be effective service of process for any Litigation brought against him inany such court.Each party hereby irrevocably and unconditionally waives any objection to thelaying of venue of any Litigation in the courts of the Commonwealth of Pennsylvania or of theUnited States of America, in each case located in Philadelphia, Pennsylvania, and hereby furtherirrevocablyandunconditionallywaivesandagreesnottopleadorclaiminanysuchcourtthatanyLitigationbrought in anysuch court has beenbrought in aninconvenient forum.

Page3of6

 

10. [RestrictiveCovenants.

(a)As a condition of receiving this Award, Participant hereby acknowledges and agrees that during the period in which Participant is employed by, or providing service to, any member of the Company and its Affiliates (the “Company Group”) for the twelve (12) month-period following  termination of Participant’s employment or service for any reason (the “Restrictions Period”), Participant shall comply with the restrictive covenants set forth herein applicable to the Company Group.

(b)During the Restrictions Period, Participant shall not anywhere in the Territory on behalf of Participant, or through or on behalf of any other person or entity (other than the Company), whether as an officer, director, employee, equityholder, consultant or otherwise, as applicable:

(1)directly or indirectly, engage, participate, make any financial investment in, own any financial or beneficial interest in, operate, or become employed by or provide services to any business, corporation, firm, person, or other entity (together with its affiliates and subsidiaries, the “Competing Enterprise”) which is engaged, directly or indirectly, during Participant’s employment in competition with the Company Group in the Business anywhere in the Territory; [provided, in either case, that the Businesses of the Competing Enterprise account for more than ten percent (10%) of the gross sales of the Competing Enterprise for its most recently completed fiscal year and Participant does not work for, advise or provide consulting services to such Businesses.] / [provided, in each case, that the aggregated gross revenue of the potentially Competing Enterprise for the last 12 months derived from all products, parts or services that are directly competitive to those products, parts or services offered by the Company Group (or proposed to be offered in the next 12 months) is greater than 5% of the consolidated net sales of the Company Group as reported in the audited financial statements of the Company Group for the then most recent fiscal year.]Notwithstanding the foregoing, Participant shall not be prohibited from owning or acquiring securities in any publicly traded company as long as Participant’s ownership does not exceed 1% of such publicly traded company’s outstanding securities;

(2)encourage, induce, attempt to induce, solicit or attempt to solicit any employee, director, officer, associate, consultant, agent or independent contractor to terminate his or her employment with or engagement by the Company Group in order to become employed or engaged by any person, firm, corporation or other business enterprise other than a member of the Company Group, except in the furtherance of Participant’s responsibility while Participant is employed by the Company Group, or hire or retain, or attempt to hire or retain, any employee, director, officer, associate, consultant, agent or independent contractor of the Company Group; provided that nothing in this Award prohibits Participant from hiring an individual who responds to a job posting made available to the general public so long as Participant does not solicit or otherwise initiate such contact during the one year following termination of Participant’s employment or service; or

(3)encourage, induce, attempt to induce, solicit or attempt to solicit, any customer, distributor, supplier, vendor, marketer or sponsor of the Company Group to cease its customer, distributor, supplier, vendor, marketer or sponsor relationship with the Company Group.

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(c)The restrictions contained in this Section are necessary for the protection of the business and goodwill of the Company Group and are considered by Participant to be reasonable for such purpose. Participant acknowledges that a breach of any of the covenants contained in this Award may cause irreparable damage to the Company, the exact amount of which would be difficult to ascertain, and that the remedies at law for any such breach or threatened breach would be inadequate.  Accordingly, Participant agrees that if Participant breaches or threatens to breach any of the covenants contained in this Award, in addition to any other remedy which may be available to the Company at law or in equity, the Company shall be entitled (i) to the extent permitted by applicable law, to cease or withhold any payment of Shares to Participant pursuant to this Award, including the return of any previously delivered Shares or proceeds recognized upon any sale or other disposition of those Shares; and/or (ii) to institute and prosecute proceedings in any court of competent jurisdiction for specific performance and injunctive relief to prevent the breach or any threatened breach thereof without bond or other security or a showing that monetary damages will not provide an adequate remedy.  Participant further acknowledges that the restrictions and limitations set forth in this Award will not materially interfere with Participant’s ability to earn a living following the termination of Participant’s employment with the Company and that Participant’s ability to earn a livelihood without violating such restrictions is a material condition to Participant’s employment with the Company.  Participant agrees to disclose in advance the existence and terms of the restrictions and covenants contained in this Award to any employer or service recipient by whom Participant might be employed or retained during the Restrictions Period.

(d) ForpurposesofthisSection:

(1)“Business” means a supplier of automotive replacement parts, brake parts and fasteners to the automotive aftermarket (including, without limitation, the light, medium and heavy duty truck aftermarket) or a supplier of home fasteners and electrical wiring components to mass merchandisers, or any [other business activities of the Company Group accounting for more than ten percent (10%) of its gross sales in the most recently completed fiscal year or reasonably expected to do so in the current fiscal year, in the United States and in any foreign jurisdiction in which the Company Group operates or, at the end of Participant’s employment, proposes to operate.] / [business that engages in any business activity of the Company Group.]

(2)“Territory”means any state, jurisdiction or territory in the world in which the Company is engaged in business during the Restrictions Period.

(e)The terms “employee,” “director,” “officer,” “associate,” “consultant,” “agent,” and “independent contractor” shall include any person with such status at any time during the twelve (12) months prior to the termination of Participant’s employment and for twelve (12) months following termination of Participant’s employment.  Participant shall not be deemed to have violated the provisions of this Section 10 by reason of an isolated act, or failure to act, not taken in bad faith.]

11.Incorporation of Plan Terms and Conflict with Other Agreements.

(a)This Award is subject to the terms andconditionsofthePlan,including,butnotlimitedto,thosepertainingto(i)changeincapitalizationoftheCompany,(ii)

Page5of6

 

clawbackandrecoupment,(iii)theCommittee’sauthoritytoamend,interpret,and administer the Award and the Plan, and (iv) issuance of Shares upon Option exercise andpaymenttherefor.SuchtermsandconditionsofthePlanareincorporatedintoandmadeapartofthis Award by reference.In the event of any conflicts between the provisions of this Award andthe terms of the Plan, the terms of the Plan will control.Capitalized terms used but not defined in thisAward shall have the meanings set forth in the Plan unless the context clearly requires analternativemeaning.

(b)In the event of any conflictbetweentheprovisionsofthisAwardandtheprovisionsofanyemployment,service, restrictive covenantor change-in-control agreement between the Company and Participant, the provisions of such employment, service, restrictive covenant or change-in-control agreement shall prevail. For the avoidance of doubt, to the extent Participant has agreed to the terms of conditions of the Dorman Products, Inc. Executive Severance Plan (the “Severance Plan”), the restrictive covenants in that Severance Plan shall prevail over the restrictive covenants in Section 10 of this Award, both with respect to time and scope, if applicable.

PleaseconfirmyouracceptanceofthisAwardelectronicallybyfollowingtheinstructionsonyour personal web portal at Equiniti Trust Company (EQ).Your electronic signatureindicatesyouragreementto beboundbythetermsofthis Award.

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EX-10.5.13

Exhibit 10.5.13

DORMAN PRODUCTS, INC.
RESTRICTED STOCK UNIT AWARD PURSUANT TO THE
DORMAN PRODUCTS, INC. 2018 STOCK OPTION AND STOCK INCENTIVE PLAN

* * * * *

Participant: Shall mean the person to whom this Award is made pursuant to the terms of the Plan (defined below).

Grant Date: Shall be the date set forth under “Award Information” on the “Award Acceptance” page in Participant’s personal web portal award administered by Equiniti Trust Company (EQ), which page is incorporated herein (the “Acceptance Page”).

* * * * *

THIS RESTRICTED STOCK UNIT AWARD (this “Award”) dated as of the Grant Date is entered into by and between Dorman Products, Inc. (the “Company”) and Participant.

1.Grant of Restricted Stock Units. Effective as of the Grant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan (the “Plan”), the Company hereby grants to Participant the number of Restricted Stock Units set forth on the Acceptance Page (the “RSUs”), subject to the terms and conditions set forth in this Award and the Plan. [This Award is in consideration for Participant’s acceptance of and agreement to the restrictive covenants set forth in Section 8 of this Award.]

2.Dividend Equivalents.

(a)The RSUs are granted with dividend equivalent rights. If the Company declares a cash dividend on the Shares, an amount equivalent to such dividend will be credited to an unfunded bookkeeping account with respect to each outstanding and unvested RSU (the “Dividend Equivalent Amount”) on the record date of such dividend.

(b)The Dividend Equivalent Amount will be credited as cash, without interest, and will not be converted to Shares. The Dividend Equivalent Amount will be payable in cash, but only upon the applicable vesting date(s) of the underlying RSUs as determined in accordance with Section 3 below, and will be cancelled and forfeited if the underlying RSUs are cancelled or forfeited as determined in accordance with Section 3 below.

3.Vesting of RSUs.

(a)Subject to the provisions of Sections 3(b) and (c), the RSUs shall vest [    ]% on [date][each [    ] anniversary of the Grant Date beginning on the [    ] anniversary of the Grant Date] (each a “Vesting Date”), provided that Participant remains employed by or providing service to the Company on such Vesting Date. The vesting of the RSUs shall be cumulative, but shall not exceed 100% of the RSUs. If the foregoing schedule would produce fractional RSUs, the number of RSUs that vest shall be rounded down to the nearest whole RSU and the fractional RSU will be accumulated so that the resulting whole RSU will be included in the number of RSUs that become vested on the last Vesting Date .

Page 1 of 6

(b)Upon a Change in Control, 100% of the unvested portion of the RSUs shall vest.

(c)Upon Participant’s termination of employment or service for any of the following reasons, the unvested portion of the RSUs shall vest as indicated:

(i)100% as of the date of Participant’s death; or

(ii)100% as of the date of Participant’s termination of employment or service due to Disability.

Except as provided above, upon the termination of employment or service of Participant, any unvested RSUs will immediately and automatically, without any action on the part of the Company, be forfeited and cancelled.

4.Delivery of Shares; Tax Withholding; Securities Laws.

(a)Within thirty (30) days of a Vesting Date, the Company shall (i) pay the Dividend Equivalent Amount (if any) and (ii) deliver Shares issuable with respect to any vested RSUs.

(b)All obligations of the Company to deliver Shares shall be subject to the rights of the Company to withhold amounts required by law for any Federal Insurance Contributions Act (FICA), federal income, state, local and other tax liabilities (“Withholding Taxes”). By accepting this Award, Participant hereby: (i) elects, effective on the date Participant accepts this Award, to sell Shares in an amount having an aggregate Fair Market Value equal to the Withholding Taxes, and to allow the designated broker (the “Broker”) to remit the cash proceeds of such sale to the Company (a “Sell to Cover”); (ii) directs the Company to make a cash payment to satisfy the Withholding Taxes from the cash proceeds of such sale directly to the appropriate taxing authorities; and (iii) represents and warrants that (1) on the date Participant accepts this Award he or she is not aware of any material, nonpublic information with respect to the Company or any securities of the Company, is not subject to any legal, regulatory or contractual restriction that would prevent the Broker from conducting sales, does not have, and will not attempt to exercise, authority, influence or control over any sales of Shares effected by the Broker pursuant to this Award, (2) is entering into the Award and this election to Sell to Cover in good faith and not as part of a plan or scheme to evade the prohibitions of Rule 10b5-1 (regarding trading of the Company’s securities on the basis of material nonpublic information) under the 1934 Act, and (3) it is Participant’s intent that this election to Sell to Cover comply with the requirements of Rule 10b5-1(c)(1) under the 1934 Act and be interpreted to comply with the requirements of Rule 10b5-1(c) under the 1934 Act. Participant further acknowledges that by accepting this Award, Participant is adopting a 10b5-1 Plan to permit Participant to conduct a Sell to Cover sufficient to satisfy the Withholding Taxes. All obligations to pay any Dividend Equivalent Amount will be paid net of any Withholding Taxes.

(c)The obligation of the Company to deliver Shares shall also be subject to the condition that if at any time the Company shall determine in its discretion that the listing, registration or qualification of the Shares upon any securities exchange or under any state or federal law, or the consent or approval of any governmental regulatory body is necessary or

Page 2 of 6

desirable as a condition of, or in connection with, the issuance of Shares, the Shares may not be issued in whole or in part unless such listing, registration, qualification, consent or approval shall have been effected or obtained free of any conditions not acceptable to the Company.

5.Assignments, Transfers and Successors and Assigns. The rights and interests of Participant under this Award may not be assigned, sold, exchanged, transferred, pledged, hypothecated or otherwise disposed of except by will or the laws of descent and distribution. The rights and protections of the Company hereunder shall extend to any successors or assigns of the Company and to the Company’s parent(s) and each of its Affiliates. This Award may be assigned by the Company without Participant’s consent.

6.Section 409A. This Award is intended to be exempt from or otherwise comply with the provisions of Section 409A. If the RSUs constitute “deferred compensation” under Section 409A and the RSUs become vested and settled upon Participant’s termination of employment or service, payment with respect to the RSUs shall be delayed for a period of six months after the termination if Participant is a “specified employee” as defined under Section 409A and if required pursuant to Section 409A. If payment is delayed, the RSUs shall be settled and paid within thirty (30) days after the date that is six (6) months following Participant’s termination of employment or service. Payments with respect to the RSUs may only be paid in a manner and upon an event permitted by Section 409A, and each payment under this Award shall be treated as a separate payment, and the right to a series of installment payments shall be treated as a right to a series of separate payments. In no event shall Participant, directly or indirectly, designate the calendar year of payment. The Company may change or modify the terms of this Award without Participant’s consent or signature if the Company determines, in its sole discretion, that such change or modification is necessary for purposes of compliance with or exemption from the requirements of Section 409A.

7.Miscellaneous.

(a)This Award shall not confer upon Participant any right to continue in the service as an employee, officer, director, consultant or advisor of the Company or any Subsidiary Company.

(b)The address for Participant to which notice, demands and other communications to be given or delivered under or by reason of the provisions hereof shall be Participant’s address as reflected in the Company’s personnel records, or such other address as Participant may provide to the Company by written notice.

(c)The validity, performance, construction and effect of this Award shall be governed by the laws of the Commonwealth of Pennsylvania, without giving effect to principles of conflicts of law.

(d)Participant hereby irrevocably and unconditionally consents to submit to the exclusive jurisdiction of the courts of the Commonwealth of Pennsylvania and of the United States of America, in each case located in Philadelphia, Pennsylvania, for any actions, suits or proceedings arising out of or relating to this Award and the transactions contemplated hereby (“Litigation”) and agrees not to commence any Litigation except in any such court, and further

Page 3 of 6

agrees that service of process, summons, notice or document by U.S. registered mail to his respective address shall be effective service of process for any Litigation brought against him in any such court. Each party hereby irrevocably and unconditionally waives any objection to the laying of venue of any Litigation in the courts of the Commonwealth of Pennsylvania or of the United States of America, in each case located in Philadelphia, Pennsylvania, and hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any Litigation brought in any such court has been brought in an inconvenient forum.

8.[Restrictive Covenants.

(a)As a condition of receiving this Award, Participant hereby acknowledges and agrees that during the period in which Participant is employed by, or providing service to, any member of the Company and its Affiliates (the “Company Group”) for the twelve (12) month-period following  termination of Participant’s employment or service for any reason (the “Restrictions Period”), Participant shall comply with the restrictive covenants set forth herein applicable to the Company Group.

(b)During the Restrictions Period, Participant shall not anywhere in the Territory on behalf of Participant, or through or on behalf of any other person or entity (other than the Company), whether as an officer, director, employee, equityholder, consultant or otherwise, as applicable:

(1)directly or indirectly, engage, participate, make any financial investment in, own any financial or beneficial interest in, operate, or become employed by or provide services to any business, corporation, firm, person, or other entity (together with its affiliates and subsidiaries, the “Competing Enterprise”) which is engaged, directly or indirectly, during Participant’s employment in competition with the Company Group in the Business anywhere in the Territory; [provided, in either case, that the Businesses of the Competing Enterprise account for more than ten percent (10%) of the gross sales of the Competing Enterprise for its most recently completed fiscal year and Participant does not work for, advise or provide consulting services to such Businesses.] / [provided, in each case, that the aggregated gross revenue of the potentially Competing Enterprise for the last 12 months derived from all products, parts or services that are directly competitive to those products, parts or services offered by the Company Group (or proposed to be offered in the next 12 months) is greater than 5% of the consolidated net sales of the Company Group as reported in the audited financial statements of the Company Group for the then most recent fiscal year.]Notwithstanding the foregoing, Participant shall not be prohibited from owning or acquiring securities in any publicly traded company as long as Participant’s ownership does not exceed 1% of such publicly traded company’s outstanding securities;

(2)encourage, induce, attempt to induce, solicit or attempt to solicit any employee, director, officer, associate, consultant, agent or independent contractor to terminate his or her employment with or engagement by the Company Group in order to become employed or engaged by any person, firm, corporation or other business enterprise other than a member of the Company Group, except in the furtherance of Participant’s responsibility while Participant is employed by the Company Group, or hire or retain, or attempt to hire or retain, any employee, director, officer, associate, consultant, agent or independent contractor of the Company

Page 4 of 6

Group; provided, that nothing in this Award prohibits Participant from hiring an individual who responds to a job posting made available to the general public so long as Participant does not solicit or otherwise initiate such contact during the one year following termination of Participant’s employment or service; or

(3)encourage, induce, attempt to induce, solicit or attempt to solicit, any customer, distributor, supplier, vendor, marketer or sponsor of the Company Group to cease its customer, distributor, supplier, vendor, marketer or sponsor relationship with the Company Group.

(c)The restrictions contained in this Section are necessary for the protection of the business and goodwill of the Company Group and are considered by Participant to be reasonable for such purpose. Participant acknowledges that a breach of any of the covenants contained in this Award may cause irreparable damage to the Company, the exact amount of which would be difficult to ascertain, and that the remedies at law for any such breach or threatened breach would be inadequate. Accordingly, Participant agrees that if Participant breaches or threatens to breach any of the covenants contained in this Award, in addition to any other remedy which may be available to the Company at law or in equity, the Company shall be entitled (i) to the extent permitted by applicable law, to cease or withhold any payment of Shares to Participant pursuant to this Award, including the return of any previously delivered Shares or proceeds recognized upon any sale or other disposition of those Shares; and/or (ii) to institute and prosecute proceedings in any court of competent jurisdiction for specific performance and injunctive relief to prevent the breach or any threatened breach thereof without bond or other security or a showing that monetary damages will not provide an adequate remedy.  Participant further acknowledges that the restrictions and limitations set forth in this Award will not materially interfere with Participant’s ability to earn a living following the termination of Participant’s employment with the Company and that Participant’s ability to earn a livelihood without violating such restrictions is a material condition to Participant’s employment with the Company.  Participant agrees to disclose in advance the existence and terms of the restrictions and covenants contained in this Award to any employer or service recipient by whom Participant might be employed or retained during the Restrictions Period.

(d)For purposes of this Section:

(1)“Business” means a supplier of automotive replacement parts, brake parts and fasteners to the automotive aftermarket (including, without limitation, the light, medium and heavy duty truck aftermarket) or a supplier of home fasteners and electrical wiring components to mass merchandisers, or any [other business activities of the Company Group accounting for more than ten percent (10%) of its gross sales in the most recently completed fiscal year or reasonably expected to do so in the current fiscal year, in the United States and in any foreign jurisdiction in which the Company Group operates or, at the end of Participant’s employment, proposes to operate.]/ [business that engages in any business activity of the Company Group.]

(2)“Territory” means any state, jurisdiction or territory in the world in which the Company is engaged in business during the Restrictions Period.

Page 5 of 6

(e)The terms “employee,” “director,” “officer,” “associate,” “consultant,” “agent,” and “independent contractor” shall include any person with such status at any time during the twelve (12) months prior to the termination of Participant’s employment and for twelve (12) months following termination of Participant’s employment.  Participant shall not be deemed to have violated the provisions of this Section 8by reason of an isolated act, or failure to act, not taken in bad faith.]

9.Incorporation of Plan Terms and Conflict with Other Agreements.

(a)This Award is subject to the terms andconditionsofthePlan,including,butnotlimitedto,thosepertainingto(i)changeincapitalizationoftheCompany,(ii)clawbackandrecoupment,(iii)theCommittee’sauthoritytoamend,interpret,and administer the Award and the Plan, and (iv) issuance of Shares upon Option exercise andpaymenttherefor.SuchtermsandconditionsofthePlanareincorporatedintoandmadeapartof this Award by reference.In the event of any conflicts between the provisions of this Award andthe terms of the Plan, the terms of the Plan will control. Capitalized terms used but not defined in this Award shall have the meanings set forth in the Plan unless the context clearly requires analternativemeaning.

(b)In the event of any conflictbetweentheprovisionsofthisAwardandtheprovisionsofanyemployment,service, restrictive covenantor change-in-control agreement between the Company and Participant, the provisions of such employment, service, restrictive covenant or change-in-control agreement shall prevail.  For the avoidance of doubt, to the extent Participant has agreed to the terms of conditions of the Dorman Products, Inc. Executive Severance Plan (the “Severance Plan”), the restrictive covenants in that Severance Plan shall prevail over the restrictive covenants in Section 8 of this Award, both with respect to time and scope, if applicable.

Please confirm your acceptance of this Award electronically by following the instructions on your personal web portal at Equiniti Trust Company (EQ). Your electronic signature indicates your agreement to be bound by the terms of this Award.

Page 6 of 6

EX-10.5.14

Exhibit 10.5.14

DORMANPRODUCTS,INC.

PERFORMANCE RESTRICTED STOCK UNIT AWARD PURSUANT TO THEDORMANPRODUCTS,INC.2018STOCKOPTIONANDSTOCKINCENTIVEPLAN

*****

Participant:ShallmeanthepersontowhomthisAwardismadepursuanttothetermsofthePlan(definedbelow).

Grant Date:Shall be the date set forth under “Award Information” on the “Award Acceptance”page in Participant’s personal web portal award administered by Equiniti Trust Company (EQ),whichpageis incorporated herein(the“AcceptancePage”).

*****

THISPERFORMANCERESTRICTEDSTOCKUNITAWARD(this“Award”)

datedasoftheGrantDateisenteredintobyandbetweenDormanProducts,Inc.(the“Company”)andParticipant.

1.Grant of Performance-Based Restricted Stock Units.Effective as of theGrant Date, pursuant to the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan(the“Plan”),theCompanyherebygrantstoParticipantthenumberofperformance-basedRestricted Stock Units set forth on the Acceptance Page (the “PSUs”), subject to the terms andconditions set forth in this Award and the Plan. [This Award is in consideration for Participant’sacceptanceofandagreement totherestrictivecovenants setforthinSection 8ofthisAward.]

2. DividendEquivalents.

(a)ThePSUsaregrantedwithdividendequivalentrights.IftheCompany declares a cash dividend on the Shares, an amount equivalent to such dividend will becredited to an unfunded bookkeeping account with respect to each outstanding and unvested PSU(the“Dividend Equivalent Amount”)on therecorddateofsuch dividend.

(b)The Dividend Equivalent Amount will be credited as cash, withoutinterest,andwillnotbeconvertedtoShares.TheDividendEquivalentAmountwillbepayableincash, but only upon the applicable vesting date(s) of the underlying PSUs as determined inaccordance with Section 3 below, and will be cancelled and forfeited if the underlying PSUs arecancelledorforfeited asdetermined in accordancewith Section 3below.

3. VestingofPSUs.

(a)SubjecttotheprovisionsofSections3(b)and (c),thevestingofthePSUs is contingent upon (i) the Company’s achievement of the performance target(s) set forth onExhibit A hereto (“Performance Target(s)”) during the performance period set forth on Exhibit Ahereto (“Performance Period”), and (ii) Participant’s continued employment by or provision ofservicestotheCompanyoraSubsidiariesCompanythroughthe end ofthe PerformancePeriod.

(b)Upon a Change in Control, 100% of the unvested portion of thePSUs(assumingthemaximum performancelevel)shallvest.

(c)If Participant’s employment or service terminates prior to the lastdayofthePerformancePeriodonaccountofdeathorDisability,aprorataportionofParticipant’sPSUs will vest at the end of the Performance Period to the extent the Performance Target(s) forthePerformancePeriodaremet.TheprorataportionwillbedeterminedbymultiplyingthePSUsthat would have vested at the end of the Performance Period pursuant to Section 3 and Exhibit Aif Participant’s employment or service had not terminated prior to the last day of the PerformancePeriod by a fraction, the numerator of which is the number of Participant’s completed months ofservice during the Performance Period and the denominator of which is the number of months inthe Performance Period.Thereafter, the number of Shares deliverable shall be rounded up to thenearestwholeShare.AnySharesdeliverableunderthisSection3(c)shallbedeliveredatthesametimelong-termincentiveawardsarenormallypaidand/ordeliveredaftertheendofthePerformancePeriod.

Except as provided above, upon the termination of employment or service ofParticipantpriortoPSUsvestinginaccordancewithExhibitA,anyunvestedPSUswillimmediately and automatically, without any action on the part of the Company, be forfeited andcancelled.

4. DeliveryofShares;Tax Withholding;SecuritiesLaws.

(a)Withinthirty(30)daysofaVestingDate,theCompanyshall(i)paytheDividendEquivalentAmount(ifany)and(ii)deliverSharesissuablewithrespecttoanyvestedPSUs.

(b)AllobligationsoftheCompanytodeliverSharesshallbesubjecttothe rights of the Company to withhold amounts required by law for any Federal InsuranceContributions Act (FICA), federal income, state, local and other tax liabilities (“WithholdingTaxes”).By accepting this Award, Participant hereby: (i) elects, effective on the date Participantaccepts this Award, to sell Shares in an amount having an aggregate Fair Market Value equal tothe Withholding Taxes, and to allow the designated broker (the “Broker”) to remit the cashproceedsofsuchsaletotheCompany(a“SelltoCover”);(ii)directstheCompanytomakeacashpayment to satisfy the Withholding Taxes from the cash proceeds of such sale directly to theappropriate taxing authorities; and (iii) represents and warrants that (1) on the date Participantaccepts this Award he or she is not aware of any material, nonpublic information with respect totheCompanyoranysecuritiesoftheCompany,isnotsubjecttoanylegal,regulatoryorcontractualrestrictionthatwouldpreventtheBrokerfromconductingsales,doesnothave,andwillnotattempttoexercise,authority,influenceorcontroloveranysalesofShareseffectedbytheBrokerpursuantto this Award, (2) is entering into the Award and this election to Sell to Cover in good faith andnot as part of a plan or scheme to evade the prohibitions of Rule 10b5-1 (regarding trading of theCompany’ssecuritiesonthebasisofmaterialnonpublicinformation)underthe1934Act,and(3)it is Participant’s intent that this election to Sell to Cover comply with the requirements of Rule10b5-1(c)(1)underthe1934ActandbeinterpretedtocomplywiththerequirementsofRule10b5-1(c)underthe1934Act.ParticipantfurtheracknowledgesthatbyacceptingthisAward,Participantisadoptinga10b5-1PlantopermitParticipanttoconductaSelltoCoversufficientto

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satisfytheWithholdingTaxes.AllobligationstopayanyDividendEquivalentAmountwillbepaid net ofanyWithholdingTaxes.

(c)The obligation of the Company to deliver Shares shall also besubject to the condition that if at any time the Company shall determine in its discretion that thelisting, registration or qualification of the Shares upon any securities exchange or under any stateor federal law, or the consent or approval of any governmental regulatory body is necessary ordesirable as a condition of, or in connection with, the issuance of Shares, the Shares may not beissued in whole or in part unless such listing, registration, qualification, consent or approval shallhavebeen effected orobtained freeofanyconditions not acceptabletotheCompany.

5.Assignments,TransfersandSuccessorsandAssigns.Therightsandinterests of Participant under this Award may not be assigned, sold, exchanged, transferred,pledged,hypothecatedor otherwise disposedofexceptby willor thelawsof descentanddistribution.Therightsandprotections oftheCompanyhereundershall extendtoanysuccessorsor assigns of the Company and to the Company’s parent(s) and each of its Affiliates. This Awardmaybeassigned bytheCompanywithout Participant’s consent.

6.Section 409A.This Award is intended to be exempt from or otherwisecomply with the provisions of Section 409A.If the PSUs constitute “deferred compensation”under Section 409A and the PSUs become vested and settled upon Participant’s termination ofemployment or service, payment with respect to the PSUs shall be delayed for a period of sixmonths after the termination if Participant is a “specified employee” as defined under Section409A and if required pursuant to Section 409A.If payment is delayed, the PSUs shall be settledand paid within thirty (30) days after the date that is six (6) months following Participant’stermination of employment or service.Payments with respect to the PSUs may only be paid in amanner and upon an event permitted by Section 409A, and each payment under this Award shallbe treated as a separate payment, and the right to a series of installment payments shall be treatedas a right to a series of separate payments.In no event shall Participant, directly or indirectly,designate the calendar year of payment.The Company may change or modify the terms of thisAwardwithoutParticipant’sconsentorsignatureiftheCompanydetermines,initssolediscretion,thatsuchchangeormodificationisnecessaryforpurposesofcompliancewithorexemptionfromtherequirements ofSection 409A.

7. Miscellaneous.

(a)This Award shall not confer upon Participant any right to continuein the service as an employee, officer, director, consultant or advisor of the Company or anySubsidiaryCompany.

(b)The address for Participant to which notice, demands and othercommunications to be given or delivered under or by reason of the provisions hereof shall beParticipant’s address as reflected in the Company’s personnel records, or such other address asParticipant mayprovideto theCompanybywritten notice.

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(c)The validity, performance, construction and effect of this Awardshall be governed by the laws of the Commonwealth of Pennsylvania, without giving effect toprinciplesofconflicts oflaw.

(d)ParticipantherebyirrevocablyandunconditionallyconsentstosubmittotheexclusivejurisdictionofthecourtsoftheCommonwealthofPennsylvaniaandoftheUnitedStatesofAmerica,ineachcaselocatedinPhiladelphia,Pennsylvania,foranyactions,suitsor proceedings arising out of or relating to this Award and the transactions contemplated hereby(“Litigation”) and agrees not to commence any Litigation except in any such court, and furtheragrees that service of process, summons, notice or document by U.S. registered mail to hisrespective address shall be effective service of process for any Litigation brought against him inany such court.Each party hereby irrevocably and unconditionally waives any objection to thelaying of venue of any Litigation in the courts of the Commonwealth of Pennsylvania or of theUnited States of America, in each case located in Philadelphia, Pennsylvania, and hereby furtherirrevocablyandunconditionallywaivesandagreesnottopleadorclaiminanysuchcourtthatanyLitigationbrought in anysuch court has beenbrought in an inconvenientforum.

8. [RestrictiveCovenants.

(a)As a condition of receiving this Award, Participant hereby acknowledges and agrees that during the period in which Participant is employed by, or providing service to, any member of the Company and its Affiliates (the “Company Group”) for the twelve (12) month-period following termination of Participant’s employment or service for any reason (the “Restrictions Period”), Participant shall comply with the restrictive covenants set forth herein applicable to the Company Group.

(b)During the Restrictions Period, Participant shall not anywhere in the Territory on behalf of Participant, or through or on behalf of any other person or entity (other than the Company), whether as an officer, director, employee, equityholder, consultant or otherwise, as applicable:

(1)directly or indirectly, engage, participate, make any financial investment in, own any financial or beneficial interest in, operate, or become employed by or provide services to any business, corporation, firm, person, or other entity (together with its affiliates and subsidiaries, the “Competing Enterprise”) which is engaged, directly or indirectly, during Participant’s employment in competition with the Company Group in the Business anywhere in the Territory; [provided, in either case, that the Businesses of the Competing Enterprise account for more than ten percent (10%) of the gross sales of the Competing Enterprise for its most recently completed fiscal year and Participant does not work for, advise or provide consulting services to such Businesses.] / [provided, in each case, that the aggregated gross revenue of the potentially Competing Enterprise for the last 12 months derived from all products, parts or services that are directly competitive to those products, parts or services offered by the Company Group (or proposed to be offered in the next 12 months) is greater than 5% of the consolidated net sales of the Company Group as reported in the audited financial statements of the Company Group for the then most recent fiscal year.]Notwithstanding the foregoing, Participant shall not be prohibited from owning or acquiring securities in any publicly traded company as long as Participant’s ownership does not exceed 1% of such publicly traded company’s outstanding securities;

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(2)encourage, induce, attempt to induce, solicit or attempt to solicit any employee, director, officer, associate, consultant, agent or independent contractor to terminate his or her employment with or engagement by the Company Group in order to become employed or engaged by any person, firm, corporation or other business enterprise other than a member of the Company Group, except in the furtherance of Participant’s responsibility while Participantis employed by the Company Group, or hire or retain, or attempt to hire or retain, any employee, director, officer, associate, consultant, agent or independent contractor of the Company Group; provided, that nothing in this Award prohibits Participant from hiring an individual who responds to a job posting made available to the general public so long as Participant does not solicit or otherwise initiate such contact during the one year following termination of Participant’s employment or service; or

(3)encourage, induce, attempt to induce, solicit or attempt to solicit, any customer, distributor, supplier, vendor, marketer or sponsor of the Company Group to cease its customer, distributor, supplier, vendor, marketer or sponsor relationship with the Company Group.

(c)The restrictions contained in this Section are necessary for the protection of the business and goodwill of the Company Group and are considered by Participant to be reasonable for such purpose. Participant acknowledges that a breach of any of the covenants contained in this Award may cause irreparable damage to the Company, the exact amount of which would be difficult to ascertain, and that the remedies at law for any such breach or threatened breach would be inadequate.  Accordingly, Participant agrees that if Participant breaches or threatens to breach any of the covenants contained in this Award, in addition to any other remedy which may be available to the Company at law or in equity, the Company shall be entitled (i) to the extent permitted by applicable law, to cease or withhold any payment of Shares to Participant pursuant to this Award, including the return of any previously delivered Shares or proceeds recognized upon any sale or other disposition of those Shares; and/or (ii) to institute and prosecute proceedings in any court of competent jurisdiction for specific performance and injunctive relief to prevent the breach or any threatened breach thereof without bond or other security or a showing that monetary damages will not provide an adequate remedy.  Participant further acknowledges that the restrictions and limitations set forth in this Award will not materially interfere with Participant’s ability to earn a living following the termination of Participant’s employment with the Company and that Participant’s ability to earn a livelihood without violating such restrictions is a material condition to Participant’s employment with the Company. Participant agrees to disclose in advance the existence and terms of the restrictions and covenants contained in this Award to any employer or service recipient by whom Participant might be employed or retained during the Restrictions Period.

(d) ForpurposesofthisSection:

(1)“Business” means a supplier of automotive replacement parts, brake parts and fasteners to the automotive aftermarket (including, without limitation, the light, medium and heavy duty truck aftermarket) or a supplier of home fasteners and electrical wiring components to mass merchandisers, or any [other business activities of the Company Group accounting for more than ten percent (10%) of its gross sales in the most recently completed fiscal year or reasonably expected to do so in the current fiscal year, in the United States and in any foreign jurisdiction in which the Company Group operates or, at the end of Participant’s

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employment, proposes to operate.] / [business that engages in any business activity of the Company Group.]

(2)“Territory”meansany state, jurisdiction orterritory in theworldin which theCompanyis engagedin business duringtheRestrictionsPeriod.

(e)The terms “employee,” “director,” “officer,” “associate,” “consultant,” “agent,” and “independent contractor” shall include any person with such status at any time during the twelve (12) months prior to the termination of Participant’s employment and for twelve (12) months following termination of Participant’s employment.  Participant shall not be deemed to have violated the provisions of this Section 8 by reason of an isolated act, or failure to act, not taken in bad faith.]

9. Incorporation of Plan Terms and Conflict with Other Agreements.

(a)This Award is subject to the terms andconditionsofthePlan,including,butnotlimitedto,thosepertainingto(i)changeincapitalizationoftheCompany,(ii)clawbackandrecoupment,(iii)theCommittee’sauthoritytoamend,interpret,and administer the Award and the Plan, and (iv) issuance of Shares upon Option exercise andpaymenttherefor.SuchtermsandconditionsofthePlanareincorporatedintoandmadeapartof this Award by reference.In the event of any conflicts between the provisions of this Award andthe terms of the Plan, the terms of the Plan will control. Capitalized terms used but not defined in this Award shall have the meanings set forth in the Plan unless the context clearly requires analternativemeaning.

(b)In the event of any conflictbetweentheprovisionsofthisAwardandtheprovisionsofanyemployment,service, restrictive covenantor change-in-control agreement between the Company and Participant, the provisions of such employment, service, restrictive covenant or change-in-control agreement shall prevail.  For the avoidance of doubt, to the extent Participant has agreed to the terms of conditions of the Dorman Products, Inc. Executive Severance Plan (the “Severance Plan”), the restrictive covenants in that Severance Plan shall prevail over the restrictive covenants in Section 8 of this Award, both with respect to time and scope, if applicable.

PleaseconfirmyouracceptanceofthisAwardelectronicallybyfollowingtheinstructionsonyour personal web portal at Equiniti Trust Company (EQ).Your electronic signatureindicatesyouragreementto beboundbythetermsofthis Award.

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EXHIBITA

[Performance Standard]	Payout
Less than [Threshold]	0
[Threshold]	[     ]
[Target Performance]	[     ]
[Maximum] or greater	[     ]

For purposes of this Award:

(a) “Performance Standard” means [one or more of the following performance criteria, either individually, alternatively or in any combination, applied either to the Company as a whole or to a business segment or unit, and measured either annually or cumulatively over a period of years, on an absolute basis or relative to a pre-established target, to a previous year’s results or to a designated comparison group, in each case as specified by the Committee in the agreement evidencing the award of restricted shares: sales, revenue, net income, net earnings, earnings per share, return on the total capital, total shareholder return, return on equity, cash flow, operating profit and margin rate. The Committee may adjust the Performance Standard during a given Performance Period to exclude the impact of any of the following events or occurrences which the Committee determines should appropriately be excluded: (a) asset write-downs and discontinued operations; (b) litigation, claims, judgments or settlements; (c) the effect of changes in tax law or other such laws or regulations affecting reported results; (d) acquisitions, mergers or restructuring costs; and (e) any other extraordinary or unusual items or events applied on a consistent basis. The Committee also may adjust the designated comparison group to account for members that cease to be a public company during the Performance Period (whether by merger, consolidation, liquidation or otherwise) and include additional companies consistent with previously approved methodology for selecting a designated comparison group. Any determination by the Committee pursuant to this Exhibit A will be binding upon each Participant and the Company.]

(b) “Performance Period” means [_________________].

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EX-10.16

Exhibit 10.16

EXECUTION VERSION

NON-DISCLOSURE, INVENTION ASSIGNMENT AND

RESTRICTIVE COVENANT AGREEMENT – MICHAEL B. KEALEY

As a condition of and in consideration for: (i) my eligibility to participate in and receive the 2022 annual equity grants in March under the Stock Plan (as defined below); (ii) my continued employment with Dorman Products, Inc. (the “Company”); and (iii) the Company’s agreement to supersede and replace all other non-competition and non-solicitation restrictive covenants I may be subject to with the Company with the non-competition and non-solicitation restrictive covenants contained herein at Paragraph 6, I agree to the terms and conditions of this Non-Disclosure, Invention Assignment and Restrictive Covenant Agreement (the “Non-Disclosure Agreement”).  

The “Stock Plan” means the Dorman Products, Inc. 2018 Stock Option and Stock Incentive Plan, as amended from time to time (or any successor plan thereto adopted by the Company).

1. Employment with Company.

1.1 It is understood and agreed that I am an employee at will and that either party may terminate my employment without cause on notice. Any notice of termination shall be in writing, given personally or by Certified Mail, Return Receipt Requested.

1.2 During the term of my employment with the Company, I agree to devote my entire time and attention and to give my best and undivided efforts and service to the business and the interests of the Company and its subsidiaries (hereinafter referred to as the “Company Group”) in such capacities and in performance of such duties as the Company may from time to time direct, which may include but not be limited to improving, developing and/or inventing processes, products, assays and analytic methods.

2. Nondisclosure

2.1 Recognition of Company’s Rights; Nondisclosure.  At all times during my employment by the Company and thereafter, I will hold in strictest confidence and will not disclose, use, lecture upon, or publish any of the Company Group’s Proprietary Information (defined below), except as such disclosure, use, lecture, or publication may be required in connection with my work for the Company, or unless an officer or other authorized representative of the Company Group (other than me) expressly authorizes such in writing.  I will obtain the Company Group’s prior written approval before publishing or submitting for publication any material (written, oral, or otherwise) that relates to my work at the Company or incorporates any Proprietary Information.  Notwithstanding the foregoing, disclosure of any Proprietary Information shall not be prohibited if such disclosure is directly related to a valid and existing order of a court or other governmental body or agency within the United States; provided, however, that I shall have first given prompt notice to the Company of any possible or prospective order and the Company shall have been afforded a reasonable opportunity to prevent or limit any such disclosure.  I hereby assign to the Company Group any rights I may have or acquire in any Proprietary Information and recognize that all Proprietary Information shall be the sole property of the Company Group and its assigns.

2.2 Proprietary Information.  The term “Proprietary Information” means any and all confidential or proprietary knowledge, data or information of the Company Group.  By way of illustration but not limitation, “Proprietary Information” includes:  (a) developments, inventions, ideas, data, programs,

other works of authorship, designs and techniques, trade secrets, mask works, processes, formulas, source and object codes, algorithms, compositions of matter, methods (including, without limitation, methods of use or delivery), know-how, technology, improvements and discoveries (hereinafter collectively referred to as “Inventions”); (b) information regarding plans for research, development, new services or products, marketing and selling, business plans, budgets and unpublished financial statements, licenses, prices and costs, clients, customers, and suppliers; and (c) information regarding the skills and compensation of the employees and/or consultants of the Company Group.  For purposes of this Non-Disclosure Agreement, the term “Proprietary Information” shall not include information which is or becomes publicly available without breach of:  (i) this Non-Disclosure Agreement; (ii) any other agreement or instrument to which the Company Group is a party or a beneficiary; or (iii) any duty owed to the Company Group by me or by any third party; provided, however, that if I shall seek to disclose, use, lecture upon, or publish any Proprietary Information, I shall bear the burden of proving that any such information shall have become publicly available without any such breach.

2.3 Third Party Information.  I understand that the Company Group has received and in the future will receive from third parties confidential or proprietary information (“Third Party Information”) subject to a duty to maintain the confidentiality of such information and to use it only for certain limited purposes.  During the term of my employment by the Company and thereafter, I will hold Third Party Information in the strictest confidence and will not disclose to anyone (other than personnel of the Company Group who need to know such information in connection with their work for the Company Group) or use, except in connection with my work for the Company Group, Third Party Information unless expressly authorized by an officer or other authorized representative of the Company Group (other than me) in writing.  I hereby assign to the Company Group any rights I may have or acquire in any Third Party Information during my employment with the Company.

2.4 No Improper Use of Information of Prior Employers and Others.  During my employment by the Company, I will not improperly use or disclose any confidential information or trade secrets, if any, of any former employer or any other person to whom I have an obligation of confidentiality, and I will not bring onto the premises of the Company Group any unpublished documents or any property belonging to any former employer or any other person to whom I have an obligation of confidentiality unless consented to in writing by that former employer or person.  I will use in the performance of my duties to the Company Group only information which is generally known and used by persons with training and experience comparable to my own, which is common knowledge in the industry or otherwise legally in the public domain, or which is otherwise provided or developed by, or on behalf of, the Company Group.

2.5 Reports to Government Entities.  Nothing in this Non-Disclosure Agreement restricts or prohibits me from initiating communications directly with, responding to inquiries from, providing testimony before, providing confidential information to, reporting possible violations of law or regulation to, or from filing a claim or assisting with an investigation directly with a self-regulatory authority or a government agency or entity, including without limitation, the U.S. Equal Employment Opportunity Commission, the Department of Labor, the National Labor Relations Board, the U.S. Department of Justice, the U.S. Securities and Exchange Commission, the U.S. Commodities Futures Trading Commission, the Financial Industry Regulatory Authority, the Occupational Safety and Health Administration,  the U.S. Congress, any other federal, state, or local government agency or commission, and any agency Inspector General (collectively, the “Regulators”), or from making other disclosures that are protected under the whistleblower provisions of federal, state, or local law or regulation. I do not need the prior authorization of the Company to engage in conduct protected by this paragraph, and I do not need to notify the Company that I have engaged in such conduct.  This Non-Disclosure

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Agreement does not limit my right to receive an award from any Regulator that provides awards for providing information relating to a potential violation of the law.  However, to the maximum extent permitted by law, I am waiving my right to receive any individual monetary relief from the Company Group resulting from such claims or conduct, regardless of whether I or another party filed the claim or reported the conduct.  I recognize and agree that, in connection with any such activity outlined above, I must inform the Regulators, my attorney, a court or a government official that the information I am providing is confidential.  Despite the foregoing, I am not permitted to reveal to any third-party, including any governmental, law enforcement, or regulatory authority, information I came to learn during the course of my employment with the Company that is protected from disclosure by any applicable privilege, including but not limited to the attorney-client privilege and/or attorney work product doctrine.  The Company does not waive any applicable privileges or the right to continue to protect its privileged attorney-client information, attorney work product, and other privileged information.

2.6 Defend Trade Secrets Act.  Pursuant to 18 U.S.C. § 1833(b), I will not be held criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade secret of the Company Group that (a) I make (i) in confidence to a federal, state, or local government official, either directly or indirectly, or to my attorney and (ii) solely for the purpose of reporting or investigating a suspected violation of law; or (b) I make in a complaint or other document that is filed under seal in a lawsuit or other proceeding.  If I file a lawsuit for retaliation by the Company Group for reporting a suspected violation of law, I may disclose any such trade secret to my attorney and use any such trade secret information in the court proceeding, if I (x) file any document containing any such trade secret under seal, and (y) do not disclose any such trade secret, except pursuant to court order.  Nothing in this Non-Disclosure Agreement is intended to conflict with 18 U.S.C. § 1833(b) or create liability for disclosures of trade secrets that are expressly allowed by 18 U.S.C. § 1833(b).  

3. Assignment of Inventions

3.1 Proprietary Rights.  The term “Proprietary Rights” means all trade secret, patent, copyright, mask work and other intellectual property rights throughout the world.

3.2 Prior Inventions.  Any and all Inventions (whether patented or unpatented) that I have, alone or jointly with others, conceived, developed or reduced to practice, or caused to be conceived, developed or reduced to practice, prior to the commencement of my employment with the Company (collectively referred to as “Prior Inventions”) are either my property or the property of third parties and are excluded from the scope of this Non-Disclosure Agreement, except if and to the extent the provisions set forth below in this Section 3.2 are made expressly applicable to Prior Inventions.  To preclude any possible uncertainty, I have set forth on Exhibit 1(Prior Inventions) attached hereto a list of Prior Inventions.  If disclosure of any Prior Invention would cause me to violate any prior confidentiality agreement, I understand that I am not to disclose such Prior Invention or to list such Prior Inventions in Exhibit 1 but am only to disclose a cursory name for each such invention, a listing of the party or parties to whom it belongs, and the fact that full disclosure as to such inventions has not been made for that reason. A space is provided on Exhibit 1 for such purpose.  If I do not attach such disclosure, I am representing thereby that there are no Prior Inventions.  Notwithstanding the foregoing provisions of this Section 3.2 that provide that Prior Inventions are excluded from the scope of this Non-Disclosure Agreement, I agree that I will not incorporate, or permit to be incorporated, Prior Inventions in any Company Inventions (as defined in Section 3.3 below), or any product, process or machine of the Company Group, without the Company’s prior written consent.  If, in the course of my employment with the Company, I incorporate a Prior Invention into any Company Inventions or into a product, process or machine of the Company

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Group, then, notwithstanding the foregoing provisions of this Section 3.2 that provide that Prior Inventions are excluded from the scope of this Non-Disclosure Agreement, the Company is hereby granted and shall have a nonexclusive, royalty free, irrevocable, perpetual, worldwide license (with rights to sublicense through multiple tiers of sublicensees) to make, cause to be made, modify, cause to be modified, use, cause to be used and sell or cause to be sold such Prior Invention.  In addition, and notwithstanding anything express or implied in the foregoing provisions of this Section 3.2 to the contrary, any Invention that would otherwise be a Prior Invention for purposes of this Section 3.2 shall not be deemed or treated as a Prior Invention for purposes of this Section 3.2 if the Company Group acquires ownership of such Invention, or if the Company Group licenses such Invention, pursuant to the provisions of a separate agreement entered into by the Company Group with me or any other person.  

3.3 Assignment of Inventions.  Subject to this Section 3.3 and to Sections 3.5 and 3.6, I hereby assign to the Company Group all my right, title and interest in and to any and all Inventions (and all Proprietary Rights with respect thereto), whether or not patentable or registrable under copyright or similar statutes that are made, conceived, reduced to practice or learned by me, either alone or jointly with others, whether or not during regular business hours, if: (i) such Invention is made, conceived, reduced to practice, or learned by me during the term of my employment with the Company or within one year after my resignation or termination from the Company; and (ii) such Invention arises out of, is based upon, or results from the use of, any Proprietary Information or Third Party Information made available to me or to which I had access as an employee of the Company.  Inventions assigned pursuant to this Section 3 to the Company, or to a third party as directed by the Company pursuant to Section 3.5 below, are hereinafter referred to as “Company Inventions.”  At the request of the Company at any time and from time to time, I will execute and deliver any and all instruments, documents and agreements reasonably requested by the Company for purposes of confirming my assignment to the Company of all of my right, title and interest in and to any and all Company Inventions (and all Proprietary Rights with respect thereto), including, without limitation, at any time when any such Company Inventions (or any Proprietary Rights with respect thereto) are first reduced to practice or first fixed in a tangible medium, as applicable.

3.4 For the avoidance of doubt, notwithstanding any contrary provision contained herein, nothing contained in this Non-Disclosure Agreement shall require the assignment of any Invention (or Proprietary Right with respect thereto) made or conceived by me during the period of my employment with the Company to the extent such assignment is prohibited by any applicable state or federal law.  

3.5 Obligation to Keep Company Informed.  During the period of my employment with the Company and thereafter, I will promptly disclose to the Company fully and in writing all Company Inventions authored, conceived or reduced to practice by me, either alone or jointly with others.  In addition, during the period of my employment with the Company, I will promptly disclose to the Company all patent applications filed by me or on my behalf that claim any Company Invention.

3.6 Works for Hire.  I acknowledge that all original works of authorship which are made by me (solely or jointly with others) within the scope of my employment with the Company and which are protectable by copyright are “works made for hire,” pursuant to the United States Copyright Act (17 U.S.C., Section 101).

3.7 Enforcement of Proprietary Rights.  I will assist the Company in every proper way in obtaining, and from time to time enforcing, United States and foreign Proprietary Rights relating to Company Inventions in any and all countries.  To that end I will promptly execute, verify and deliver such

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documents and perform such other acts (including appearances as a witness) as the Company may reasonably request for use in applying for, obtaining, perfecting, evidencing, sustaining and enforcing such Proprietary Rights and the assignment thereof.  In addition, I will promptly execute, verify and deliver assignments of such Proprietary Rights to the Company or its designee.  My obligation to assist the Company with respect to Proprietary Rights relating to such Company Inventions in any and all countries shall continue beyond the termination of my employment with the Company, but the Company shall compensate me at a reasonable rate after my termination for the time actually spent by me at the Company’s request on such assistance.

In the event the Company is unable for any reason, after reasonable effort, to secure my signature on any document needed in connection with the actions specified in the preceding paragraph, I hereby irrevocably designate and appoint the Company and its duly authorized officers and agents as my agents and attorneys-in-fact, subject to full power of substitution and resubstitution, which appointment is coupled with an interest, to act for and in my behalf to execute, verify and file any such documents and to do all other lawfully permitted acts to further the purposes of the preceding paragraph with the same legal force and effect as if executed by me.  I hereby waive and quitclaim to the Company any and all claims, of any nature whatsoever, which I now or may hereafter have for infringement of any Proprietary Rights assigned hereunder to the Company.

4. Records.I agree to keep and maintain adequate and current records (in the form of notes, memoranda, sketches, drawings and in any other form that may be required by the Company) of all Proprietary Information and all Company Inventions made, conceived, developed or reduced to practice by me, which records shall be available to and remain the sole property of the Company at all times.

5. No Conflicting Obligation.  I represent that my performance of all the terms of this Non-Disclosure Agreement and as an employee of the Company has not breached, and does not and will not breach, any agreement to keep in confidence information acquired by me in confidence or in trust prior to, or outside the scope of, my employment by the Company and any agreement not to compete with the business of any third party.  I have not entered into, and I agree I will not enter into, any agreement, either written or oral, in conflict herewith.

6. Restrictive Covenants.  

6.1 I hereby acknowledge and agree that during the period in which I am employed by, or providing service to, any member of the Company Group and for the twelve (12) month-period following my termination of employment or service for any reason (including my resignation) (the “Restrictions Period”), I shall comply with the restrictive covenants set forth herein applicable to the Company Group.  

6.1.1 During the Restrictions Period, I shall not anywhere in the Territory for myself, or through or on behalf of any other person or entity (other than the Company), whether as an officer, director, employee, equityholder, consultant or otherwise, as applicable:

directly or indirectly, engage, participate, make any financial investment in, own any financial or beneficial interest in, operate, or become employed by or provide services to any business, corporation, firm, person, or other entity (together with its affiliates and subsidiaries, the “Competing Enterprise”) which is engaged, directly or indirectly, during my employment in competition with the Company Group in the Business anywhere in the Territory; provided, in each case, that the aggregated gross revenue of the potentially Competing Enterprise for the last 12

5

months derived from all products, parts or services that are directly competitive to those products, parts or services offered by the Company Group (or proposed to be offered in the next 12 months) is greater than 5% of the consolidated net sales of the Company Group as reported in the audited financial statements of the Company Group for the then most recent fiscal year.

Notwithstanding the foregoing, I shall not be prohibited from owning or acquiring securities in any publicly traded company as long as my ownership does not exceed 1% of such publicly traded company’s outstanding securities;

6.1.1.1 encourage, induce, attempt to induce, solicit or attempt to solicit, any employee, director, officer, associate, consultant, agent or independent contractor to terminate his or her employment with or engagement by the Company Group in order to become employed or engaged by any person, firm, corporation or other business enterprise other than a member of the Company Group, except in the furtherance of my responsibility while I am employed by the Company Group, or hire or retain, or attempt to hire or retain, any employee, director, officer, associate, consultant, agent or independent contractor of the Company Group; provided, that nothing in this Non-Disclosure Agreement prohibits me from hiring an individual who responds to a job posting made available to the general public so long as I do not solicit or otherwise initiate such contact during the one year following termination of my employment or service; or

6.1.1.2 encourage, induce, attempt to induce, solicit or attempt to solicit, any customer, distributor, supplier, vendor, marketer or sponsor of the Company Group to cease its customer, distributor, supplier, vendor, marketer or sponsor relationship with the Company Group.  

6.1.2 The restrictions contained in this Section are necessary for the protection of the business and goodwill of the Company Group and are considered by me to be reasonable for such purpose. I acknowledge that a breach of any of the covenants contained in this Non-Disclosure Agreement may cause irreparable damage to the Company, the exact amount of which would be difficult to ascertain, and that the remedies at law for any such breach or threatened breach would be inadequate.  Accordingly, I agree that if I breach or threaten to breach any of the covenants contained in this Non-Disclosure Agreement, in addition to any other remedy which may be available to the Company at law or in equity, the Company shall be entitled (i) to the extent permitted by applicable law, to cease or withhold any payments or equity rights owed to me, whether in connection with my employment or otherwise, including, without limitation, any equity rights I am otherwise entitled to receive under the Stock Plan; and/or (ii) to institute and prosecute proceedings in any court of competent jurisdiction for specific performance and injunctive relief to prevent the breach or any threatened breach thereof without bond or other security or a showing that monetary damages will not provide an adequate remedy. I further acknowledge that the restrictions and limitations set forth in this Non-Disclosure Agreement will not materially interfere with my ability to earn a living following the termination of my employment with the Company and that my ability to earn a livelihood without violating such restrictions is a material condition to my employment with the Company. I agree to disclose in advance the existence and terms of the restrictions and covenants contained in this Non-Disclosure

6

Agreement to any employer or service recipient by whom I might be employed or retained during the Restrictions Period.

6.1.3 For purposes of this Section:

6.1.3.1 “Business” means a supplier of automotive replacement parts, brake parts and fasteners to the automotive aftermarket (including, without limitation, the light, medium and heavy duty truck aftermarket) or a supplier of home fasteners and electrical wiring components to mass merchandisers, or any business that engages in any business activity of the Company Group.

6.1.3.2 “Territory” means any state, jurisdiction or territory in the world in which the Company is engaged in business during the Restrictions Period.

6.1.3.3 The terms “employee,” “director,” “officer,” “associate,” “consultant,” “agent,” and “independent contractor” shall include any person with such status at any time during the twelve (12) months prior to the termination of my employment and for twelve (12) months following my termination of employment.  I shall not be deemed to have violated the provisions of this Section 6.1 by reason of an isolated act, or failure to act, not taken in bad faith.

6.1.4 The restrictive covenants set forth herein shall supersede and replace all other non-competition and non-solicitation restrictive covenants I may be subject to with the Company Group.

7. Non-Disparagement.  Subject to Sections 2.5 and 2.6, I agree that I will not, through any medium including, but not limited to, the press, Internet or any other form of communication, disparage, defame, or otherwise damage or assail the reputation, integrity or professionalism of any member of the Company Group. Nothing in this Section 7 is intended to restrict or impede your participation in proceedings or investigations brought by or before the United States Equal Employment Opportunity Commission, National Labor Relations Board, or other federal, state or local government agencies, or otherwise exercising protected rights to the extent that such rights cannot be waived by agreement, including Section 7 rights under the National Labor Relations Act.

8. Return of Company Documents.  When I leave the employ of the Company, I will deliver to the Company any and all notes, memoranda, specifications, drawings, devices, formulas, and documents, together with all copies thereof, and any other material containing or disclosing any Company Inventions, Third Party Information or Proprietary Information of the Company.  I further agree that, during the term of my employment with the Company or at any time thereafter, any property situated on the premises of the Company Group, including disks and other storage media, filing cabinets or other work areas, is subject to inspection by Company personnel at any time with or without notice.  

9. Legal and Equitable Remedies.  Because my services are personal and unique and because I may have access to and become acquainted with the Proprietary Information of the Company, the Company shall have the right to enforce this Non-Disclosure Agreement and any of its provisions by injunction, specific performance, monetary damages (e.g., disgorgement of profits or recoupment or forfeiture of any payments or benefits received under the Stock Plan, and/or forfeiture of any present or future equity rights under the Stock Plan) or other equitable relief which may be available, without bond

7

and without prejudice to any other rights and remedies that the Company may have for a breach or threatened breach of this Non-Disclosure Agreement.  The seeking or availability of such equitable relief shall not affect the Company’s right to seek and obtain damages or other relief from a court of competent jurisdiction on account of any actual or threatened breach by me of this Non-Disclosure Agreement.  In the event that the Company enforces the provisions of Section 6 hereof through a court order, I agree that the restrictions contained in Section 6 as the case may be, shall remain in effect for a period of one year from the effective date of such court order.  

10. Cooperation.  I agree that, following any termination of my employment, I will continue to provide reasonable cooperation with the Company and/or any other member of the Company Group and its or their respective counsel in connection with any investigation, administrative proceeding, or litigation relating to any matter that occurred during my employment in which I was involved or of which I have knowledge.  As a condition to such cooperation, the Company shall reimburse me for reasonable out-of-pocket expenses incurred at the request of the Company with respect to my compliance with this Section.  I also agree that, in the event I am subpoenaed by any person or entity (including, but not limited to, a Regulator) to give testimony or provide documents (in a deposition, court proceeding or otherwise), that in any way relates to my employment by the company and/or any other member of the Company Group, I will give prompt notice of such request to the Company and will make no disclosure until the Company and/or the other member of the Company Group has had a reasonable opportunity to contest the right of the requesting person or entity to such disclosure.

11. Notices.  Any notices required or permitted hereunder shall be given to the appropriate party at the address specified below or at such other address as the party shall specify in writing.  Such notice shall be deemed given upon personal delivery to the appropriate address, one (1) business day after dispatch if sent by nationally recognized courier or overnight delivery service, on the date of dispatch if sent by facsimile or electronic mail for which confirmation of transmission is provided or, if sent by certified or registered mail, three (3) business days after the date of mailing.

12. General Provisions

12.1 Governing Law; Consent to Personal Jurisdiction; Waiver of Jury Trial.  This Non-Disclosure Agreement will be governed by and construed according to the laws of Pennsylvania, as such laws are applied to agreements entered into and to be performed entirely within Pennsylvania between Pennsylvania residents. I hereby expressly consent to the personal jurisdiction of the state and federal courts located in Pennsylvania for any lawsuit filed there against me by the Company arising from or related to this Non-Disclosure Agreement.  BY EXECUTION OF THIS NON-DISCLOSURE AGREEMENT, I HEREBY WAIVE ANY RIGHT TO TRIAL BY JURY IN CONNECTION WITH ANY SUIT, ACTION OR PROCEEDING UNDER OR IN CONNECTION WITH THIS NON-DISCLOSURE AGREEMENT

12.2 Independence; Severability.  Each of the rights enumerated in this Non-Disclosure Agreement shall be independent of the others and shall be in addition to and not in lieu of any other rights and remedies available to the Company Group at law or in equity.  In the event any provision or portion of this Non-Disclosure Agreement may be held to be invalid, prohibited or unenforceable for any reason, unless such provision is narrowed by judicial construction, this Agreement shall be construed as if such provision has been more narrowly drawn so as not to be invalid, prohibited or unenforceable. If, notwithstanding the foregoing, any provision may nevertheless be held to be invalid, prohibited or unenforceable for any reason then, and to that extent only, such provision shall be ineffective without

8

affecting or invalidating the remaining portion of such provision or the other provisions of this Non-Disclosure Agreement.

12.3 Successors and Assigns.  This Non-Disclosure Agreement will be binding upon my heirs, executors, administrators and other legal representatives and will be for the benefit of the Company, its successors, and its assigns.  Without limiting the generality of the foregoing, if I become an employee of any subsidiary or controlled affiliate of the Company, then (i) such subsidiary or controlled affiliate shall be deemed and treated as an intended third party beneficiary of this Non-Disclosure Agreement to the same extent as if such subsidiary or controlled affiliate were a party to this Non-Disclosure Agreement and (ii) each reference in this Non-Disclosure Agreement to the term “Company” shall be deemed to be a reference to whichever of Dorman Products, Inc. and/or such subsidiary or controlled affiliate is my employer.  I expressly acknowledge and agree that this Non-Disclosure Agreement may be assigned by the Company without my consent to any purchaser of all or substantially all of the assets or stock of the Company, whether by purchase, merger or other similar corporate transaction.

12.4 Survival.  The provisions of this Non-Disclosure Agreement shall survive the termination of my employment with the Company and the assignment of this Non-Disclosure Agreement by the Company to any successor in interest or other assignee.

12.5 Employment.  I agree and understand that nothing in this Non-Disclosure Agreement shall confer any right on me or the Company with respect to continuation of my employment with the Company, nor shall it interfere in any way with my right or the Company’s right to terminate my employment at any time, with or without cause.

12.6 Waiver.  No waiver by the Company of any breach of this Non-Disclosure Agreement shall be valid unless in writing and signed by the party giving such waiver and no such waiver shall be a waiver of any preceding or succeeding breach.  No waiver by the Company of any right under this Non-Disclosure Agreement shall be construed as a waiver of any other right.  The Company shall not be required to give notice to enforce strict adherence to all terms of this Non-Disclosure Agreement.

12.7 Entire Agreement. This Non-Disclosure Agreement is the final, complete and exclusive agreement of the parties with respect to the subject matter hereof and supersedes all prior agreements relating to the subject matter hereof and merges all prior discussions between us.  No modification of or amendment to this Non-Disclosure Agreement, nor any waiver of any rights under this Non-Disclosure Agreement, will be effective unless in writing and signed by the party to be charged.

12.8 Counterparts.  This Non-Disclosure Agreement may be signed in counterparts, each shall be deemed an original and shall together constitute one agreement.

12.9 Acknowledgement.  I acknowledge that that I have had a full and adequate opportunity to read, understand and discuss with my advisors, including legal counsel, the terms and conditions contained in this Non-Disclosure Agreement prior to signing hereunder.

[Signature Page Follows]

9

By signing this Non-DisclosureAgreement below, (1) I agree to be bound by each of its terms, (2) I acknowledge that I have read and understand this Non-DisclosureAgreement and the important restrictions it imposes upon me, which continue after the termination of my employment for any reason, and (3) I represent and warrant to the Company that I have had ample and reasonable opportunity to consult with legal counsel of my own choosing to review this Non-Disclosure Agreement and understand its terms including that it places significant restrictions on me.

EMPLOYEE:

By /s/ Michael Kealey

Name:  MICHAEL KEALEY

Address:

Date:02/15/2022

Accepted by Company:

DORMAN PRODUCTS, INC.

By: /s/ Kevin M. Olsen

Name: Kevin M. Olsen

Title: President & CEO

Date: 02/18/2022

[Signature page to Non-Disclosure, Invention Assignment and Restrictive Covenant Agreement]

EXHIBIT 1

Excluded Information:

[Securely attach additional pages if necessary]

[If this exhibit is left blank, the employee shall be deemed to represent that he/she does not have any Excluded Information.]

EX-21

Exhibit 21

Significant Subsidiaries of Dorman Products, Inc.

Subsidiary	Jurisdiction
RB Distribution, Inc.	Pennsylvania
RB Management, Inc. DPL Holding Corporation DPL Acquisition Corporation Dayton Parts, LLC	Pennsylvania Delaware Delaware Delaware

EX-23

Exhibit 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-157150, 333-160979, 033-52946, 333-219547, and 333-225020) on Form S-8 of Dorman Products, Inc. of our report dated February 22, 2022, with respect to the consolidated financial statements and financial statement schedule II of Dorman Products, Inc. and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

Philadelphia, PA
February 22, 2022

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Kevin M. Olsen, certify that:

1. I have reviewed this annual report on Form 10-K of Dorman Products, Inc. (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and  

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 22, 2022

/s/ Kevin M. Olsen

Kevin M. Olsen

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, David M. Hession, certify that:

1. I have reviewed this annual report on Form 10-K of Dorman Products, Inc. (the “registrant”);

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e)and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and  

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: February 22, 2022

/s/ David M. Hession

David M. Hession

Senior Vice President and

Chief Financial Officer

EX-32

Exhibit 32

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES‑OXLEY ACT OF 2002

This Certification is intended to accompany the Annual Report of Dorman Products, Inc. (the "Company") on Form 10‑K for the period ended December 25, 2021 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), and is given solely for the purpose of satisfying the requirements of 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002. To the best of their knowledge, the undersigned, in their respective capacities as set forth below, hereby certify that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The  information  contained  in the  Report  fairly  presents,  in all material  respects,  the  financial condition and results of operations of the Company.

/s/ Kevin M. Olsen

Kevin M. Olsen

President and Chief Executive Officer

Date: February 22, 2022

/s/ David M. Hession

David M. Hession

Senior Vice President and

Chief Financial Officer

Date: February 22, 2022

XML

Document and Entity Information - USD ($)

12 Months Ended

Dec. 25, 2021

Feb. 17, 2022

Jun. 26, 2021

Cover [Abstract]

Document Type

10-K

Amendment Flag

false

Document Period End Date

Dec. 25, 2021

Document Fiscal Year Focus

2021

Document Fiscal Period Focus

FY

Trading Symbol

DORM

Title of 12(b) Security

Common Stock, $0.01 Par Value

Security Exchange Name

NASDAQ

Entity Registrant Name

DORMAN PRODUCTS, INC.

Entity Central Index Key

0000868780

Current Fiscal Year End Date

--12-25

Entity Well-known Seasoned Issuer

Yes

Entity Current Reporting Status

Yes

Entity Voluntary Filers

No

Entity Interactive Data Current

Yes

Entity Filer Category

Large Accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

Entity Shell Company

false

ICFR Auditor Attestation Flag

true

Entity File Number

0-18914

Entity Incorporation, State or Country Code

PA

Entity Tax Identification Number

23-2078856

Entity Address, Address Line One

3400 East Walnut Street

Entity Address, City or Town

Colmar

Entity Address, State or Province

PA

Entity Address, Postal Zip Code

18915

City Area Code

215

Local Phone Number

997-1800

Entity Common Stock, Shares Outstanding

31,545,603

Entity Public Float

$ 2,214,395,974

Document Annual Report

true

Document Transition Report

false

Auditor Name

KPMG LLP

Auditor Location

Philadelphia, Pennsylvania

Auditor Firm ID

185

Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Certain portions of the registrant's definitive proxy statement, in connection with its 2022 Annual Meeting of Shareholders, to be filed with the Securities and Exchange Commission within 120 days after December 25, 2021, are incorporated by reference into PART III of this Annual Report on Form 10-K.

XML

Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Income Statement [Abstract]
Net sales	$ 1,345,249	$ 1,092,748	$ 991,329
Cost of goods sold	882,333	709,632	651,504
Gross profit	462,916	383,116	339,825
Selling, general and administrative expenses	291,365	249,743	233,997
Income from operations	171,551	133,373	105,828
Interest expense, net	2,162	599	231
Other income, net	(377)	(2,962)	(210)
Income before income taxes	169,766	135,736	105,807
Provision for income taxes	38,234	28,866	22,045
Net income	131,532	106,870	83,762
Other comprehensive income:
Change in foreign currency translation adjustment	(1,440)
Comprehensive Income	$ 130,092	$ 106,870	$ 83,762
Earnings per share:
Basic	$ 4.13	$ 3.31	$ 2.57
Diluted	$ 4.12	$ 3.30	$ 2.56
Weighted average shares outstanding:
Basic	31,810	32,280	32,606
Diluted	31,961	32,373	32,688

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Current assets:
Cash and cash equivalents	$ 58,782	$ 155,576
Accounts receivable, less allowance for doubtful accounts of $1,326 and $1,260	472,764	460,878
Inventories	531,988	298,719
Prepaids and other current assets	13,048	7,758
Total current assets	1,076,582	922,931
Property, plant and equipment, net	114,864	91,009
Operating lease right-of-use assets	59,029	39,002
Goodwill	197,332	91,080
Intangible assets, net	178,809	25,207
Deferred tax asset, net		12,450
Other assets	46,503	38,982
Total assets	1,673,119	1,220,661
Current liabilities:
Accounts payable	177,389	117,878
Accrued compensation	26,636	19,711
Accrued customer rebates and returns	188,080	155,751
Revolving credit facility	239,360
Other accrued liabilities	33,583	29,305
Total current liabilities	665,048	322,645
Long-term operating lease liabilities	52,443	37,083
Other long-term liabilities	4,916	3,555
Deferred tax liabilities, net	17,976	3,819
Commitments and contingencies (Note 10)
Shareholders' equity:
Common stock, par value $0.01; authorized 50,000,000 shares; issued and outstanding 31,607,509 and 32,168,740 shares in 2021 and 2020, respectively	316	322
Additional paid-in capital	77,451	64,085
Retained earnings	856,409	789,152
Accumulated other comprehensive loss	(1,440)
Total shareholders' equity	932,736	853,559
Total liabilities and shareholders' equity	$ 1,673,119	$ 1,220,661

XML

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts and customer credits	$ 1,326	$ 1,260
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	31,607,509	32,168,740
Common stock, shares outstanding	31,607,509	32,168,740

XML

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 29, 2018	$ 727,623	$ 330	$ 47,861	$ 679,432
Beginning Balance, Shares at Dec. 29, 2018		33,004,861
Exercise of stock options	123		123
Exercise of stock options, shares		14,227
Compensation expense under Incentive Stock Plan	3,077		3,077
Purchase and cancellation of common stock	(41,339)	$ (5)	(939)	(40,395)
Purchase and cancellation of common stock, Shares		(521,944)
Issuance of non-vested stock, net of cancellations	1,377	$ 1	1,376
Issuance of non-vested stock, net of cancellations, Shares		69,826
Other stock related activity, net of tax	(1,039)		1,107	(2,146)
Other stock related activity, net of tax, Shares		(10,707)
Net income	83,762			83,762
Ending Balance at Dec. 28, 2019	773,584	$ 326	52,605	720,653
Ending Balance, Shares at Dec. 28, 2019		32,556,263
Exercise of stock options	1,184		1,184
Exercise of stock options, shares		27,787
Compensation expense under Incentive Stock Plan	7,586		7,586
Purchase and cancellation of common stock	(38,676)	$ (5)	(833)	(37,838)
Purchase and cancellation of common stock, Shares		(462,635)
Issuance of non-vested stock, net of cancellations	3,463	$ 1	3,462
Issuance of non-vested stock, net of cancellations, Shares		53,572
Other stock related activity, net of tax	(452)		81	(533)
Other stock related activity, net of tax, Shares		(6,247)
Net income	106,870			106,870
Ending Balance at Dec. 26, 2020	$ 853,559	$ 322	64,085	789,152
Ending Balance, Shares at Dec. 26, 2020	32,168,740	32,168,740
Exercise of stock options	$ 2,455		2,455
Exercise of stock options, shares		41,700
Compensation expense under Incentive Stock Plan	8,228		8,228
Purchase and cancellation of common stock	(62,756)	$ (6)	(1,111)	(61,639)
Purchase and cancellation of common stock, Shares		(617,080)
Issuance of non-vested stock, net of cancellations	3,261		3,261
Issuance of non-vested stock, net of cancellations, Shares		28,914
Other stock related activity, net of tax	(2,103)		533	(2,636)
Other stock related activity, net of tax, Shares		(14,765)
Other comprehensive loss	(1,440)				$ (1,440)
Net income	131,532			131,532
Ending Balance at Dec. 25, 2021	$ 932,736	$ 316	$ 77,451	$ 856,409	$ (1,440)
Ending Balance, Shares at Dec. 25, 2021	31,607,509	31,607,509

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Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Cash Flows from Operating Activities:
Net income	$ 131,532	$ 106,870	$ 83,762
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation, amortization and accretion	35,193	32,307	25,915
Gain on equity method investment		(2,498)
Provision for doubtful accounts	181	316	39
(Benefit) provision from deferred income taxes	(11,970)	(9,599)	1,058
Provision for stock-based compensation	8,228	7,586	3,077
Payment of contingent consideration	(2,418)
Changes in assets and liabilities:
Accounts receivable	10,918	(67,369)	8,810
Inventories	(153,823)	(12,334)	(10,956)
Prepaids and other current assets	(2,680)	5,353	(7,659)
Other assets	(5,004)	(3,975)	1,672
Accounts payable	47,000	25,251	(19,079)
Accrued customer rebates and returns	31,275	49,849	9,016
Accrued compensation and other liabilities	11,906	20,209	(349)
Cash provided by operating activities	100,338	151,966	95,306
Cash Flows from Investing Activities:
Acquisitions, net of cash acquired	(345,483)	(14,808)
Property, plant and equipment additions	(19,840)	(15,450)	(29,560)
Cash used in investing activities	(365,323)	(30,258)	(29,560)
Cash Flows from Financing Activities:
Proceeds of revolving credit line	252,360	99,000
Payments of revolving credit line	(13,000)	(99,000)
Payment of contingent consideration	(7,982)
Payment of debt issuance costs	(4,215)
Other stock related activity	1,266	3,007	365
Proceeds from exercise of stock options	2,455	1,184	123
Purchase and cancellation of common stock	(62,649)	(38,676)	(41,339)
Cash provided by (used in) financing activities	168,235	(34,485)	(40,851)
Effect of exchange rate changes on Cash and Cash Equivalents	(44)
Net (Decrease) Increase in Cash and Cash Equivalents	(96,794)	87,223	24,895
Cash and Cash Equivalents, Beginning of Period	155,576	68,353	43,458
Cash and Cash Equivalents, End of Period	58,782	155,576	68,353
Supplemental Cash Flow Information
Cash paid for interest expense	1,782	753	338
Cash paid for income taxes	$ 46,225	$ 28,341	$ 28,923

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 25, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

1. Summary of Significant Accounting Policies

Dorman Products, Inc. ("Dorman", the "Company", “we”, “us”, or “our”) is a supplier of replacement parts and fasteners for passenger cars and light-, medium-, and heavy-duty trucks in the automotive aftermarket industry.

We operate on a 52-53-week period ending on the last Saturday of the calendar year. The fiscal years ended December 25, 2021 (“fiscal 2021”), December 26, 2020 (“fiscal 2020”) and December 28, 2019 (“fiscal 2019”) were each 52-week periods.

Principles of Consolidation. The Consolidated Financial Statements include our accounts and the accounts of our wholly owned subsidiaries. All material intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents. We consider all highly liquid short-term investments with original maturities of three months or less to be cash equivalents.

Sales of Accounts Receivable. We have entered into several customer-sponsored programs administered by unrelated financial institutions that permit us to sell certain accounts receivable at discounted rates to the financial institutions. Transactions under these programs were accounted for as sales of accounts receivable and were removed from our Consolidated Balance Sheet at the time of the sales transactions. During fiscal 2021, fiscal 2020 and fiscal 2019, we sold $935.8 million, $740.0 million and $676.4 million, respectively, under these programs. Selling, general and administrative expenses include financing costs associated with these accounts receivable sales programs of $11.7 million, $13.2 million and $16.7 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. Financing costs are impacted both by interest rates and the timing of when accounts receivable are sold in comparison to the original due dates of those accounts receivable.

Inventories. Inventories are stated at the lower of cost or net realizable value. Cost is determined by the first-in, first-out method. Inventories include the cost of material, freight, direct labor and overhead utilized in the processing of our products. We provide reserves for discontinued and excess inventory based upon historical demand, forecasted usage, estimated customer requirements and product line updates.

Property, Plant and Equipment. Property, plant and equipment are recorded at cost and depreciated over the estimated useful lives, which range from 3 to 39 years, using the straight-line method for financial statement reporting purposes and accelerated methods for income tax purposes. The costs of maintenance and repairs are expensed as incurred. Renewals and betterments are capitalized. Gains and losses on disposals are included in operating results.

Estimated useful lives by major asset category are as follows:

Buildings and building improvements	10 to 39 years
Machinery, equipment and tooling	3 to 7 years
Software and computer equipment	3 to 10 years
Furniture, fixtures and leasehold improvements	7 to 39 years

Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets. Long-lived assets, including property, plant, and equipment and amortizable identifiable intangibles, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. The impairment review is a two-step process. First, recoverability is measured by comparing the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount exceeds the estimated undiscounted future cash flows, the second step of the impairment test is performed, and an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds its fair value. The assets and liabilities of a disposal group classified as held for sale would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated.

Goodwill is reviewed for impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value of the goodwill may be impaired. For the annual test, we have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If we determine it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. During fiscal 2021 and fiscal 2020, we assessed the qualitative factors which could affect the fair values of our reporting unit and determined that it was not more likely than not that the fair value of our reporting unit was less than its carrying amount.

Purchase Accounting. The purchase price of an acquired business is allocated to the underlying tangible and intangible assets acquired and liabilities assumed based upon their respective fair market values, with the excess recorded as goodwill. Such fair market value assessments require judgments and estimates which may change over time and may cause the final amounts to differ materially from their original estimates. These adjustments to fair value assessments are recorded to goodwill over the purchase price allocation period which cannot exceed 12 months from the date of acquisition.

Other Assets. Other assets include primarily long-term core inventory, deposits, and equity method investments.

Certain products we sell contain parts that can be recycled, or as more commonly referred to in our industry, remanufactured. We refer to these parts as cores. A used core is remanufactured and sold to the customer as a replacement for a unit inside a vehicle. Customers and end-users that purchase remanufactured products will generally return the used core to us, which we then use in the remanufacturing process to make another finished good. Our core inventory consists of used cores purchased and held in our facilities, used cores that are in the process of being returned from our customers and end-users, and remanufactured cores held in finished goods inventory at our facilities. Our products that utilize a core primarily include instrument clusters, hybrid batteries, radios, and climate control modules.

Long-term core inventory was $20.8 million and $19.6 million as of December 25, 2021 and December 26, 2020, respectively. Long-term core inventory is recorded at the lower of cost or net realizable value. Cost is determined based on actual purchases of core inventory. We believe that the most appropriate classification of core inventory is a long-term asset. According to guidance provided under the Financial Accounting Standards Board Accounting Standards Codification (“ASC”), current assets are defined as “assets or resources commonly identified as those which are reasonably expected to be realized in cash or sold or consumed during the normal operating cycle of the business.” The determination of the long-term classification is based on our view that the value of the cores is not expected to be consumed or realized in cash during our normal annual operating cycle.

We have investments that we account for according to the equity method of accounting. The total book value of these investments was $9.4 million and $8.5 million as of December 25, 2021 and December 26, 2020, respectively. These investments provided us $4.6 million, $1.3 million and $3.2 million of income during fiscal 2021, fiscal 2020, and fiscal 2019, respectively. In January 2020, we

acquired the remaining 60% of the outstanding stock of Power Train Industries, Inc. (“PTI”), a privately-held supplier of parts to the automotive aftermarket, based in Reno, Nevada of which we held equity investments with a fair value of $12.3 million. Additionally, we have an investment that we account for according to the cost method of accounting. The carrying book value of this investment was $5.0 million as of both December 25, 2021 and December 26, 2020.

Other Accrued Liabilities. Other accrued liabilities include primarily accrued commissions, accrued income taxes, insurance liabilities, product warranties, and other current liabilities. We warrant our products against certain defects in material and workmanship when used as designed on the vehicle on which it was originally installed. We offer a limited lifetime warranty on most of our products. Our warranty limits the end-user’s remedy to the repair or replacement of the part that is defective. Product warranty reserves were immaterial as of December 25, 2021 and December 26, 2020 and are based upon experience and forecasts using the best historical and current claim information available. Provisions and payments related to end-user product warranty reserves were not material in fiscal 2021, fiscal 2020 or fiscal 2019.

Revenue Recognition and Accrued Customer Rebates and Returns. Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer and collection is reasonably assured. We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits, and other discounts in the period of the sale ("Customer Credits"). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns, which is included in current liabilities. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Actual Customer Credits have not differed materially from estimated amounts. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold.

As noted above, Customer Credits include core return deposits which are an estimate of the amount we believe we will refund to our customers when used cores are returned to us. The price we invoice to customers for remanufactured cores contains both the amount we charge to remanufacture the part and a deposit for the core. We charge a core deposit to encourage the customer to return the used core to us so that it can be used in our remanufacturing process. We allow our customers up to twenty-four months to return the used core to us. Core return deposits are reserved based on the expected deposits to be issued to customers based on historical returns.

Research and Development. Research and development costs are expensed as incurred. Research and development costs totaling $23.1 million, $20.7 million and $21.0 million have been recorded in selling, general and administrative expenses in the Consolidated Statements of Operations for fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

Stock-Based Compensation. At December 25, 2021 and December 26, 2020, we had awards outstanding under two stock-based employee compensation plans, which are described more fully in Note 12, Capital Stock. We record compensation expense for all awards granted. The value of restricted stock awards (“RSAs”) and restricted stock units (“RSUs”) issued was based on the fair value of our common stock on the grant date. For performance-based RSAs tied to growth in adjusted pre-tax income, compensation costs related to the stock is recognized over the performance period and is calculated using the closing price per share of our common stock on the grant date and an estimate of the probable outcome of the performance conditions as of the reporting date. The fair value of performance-based RSUs, for which the performance measure is total shareholder return, is determined using a Monte Carlo simulation model. The fair value of stock options granted is determined using the Black-Scholes option valuation model on the grant date.

Income Taxes. We follow the asset and liability method of accounting for deferred income taxes. Deferred tax assets and liabilities are determined based on the difference between the financial statement

and tax bases of assets and liabilities. Deferred tax assets or liabilities at the end of each period are determined using the enacted tax rate expected to be in effect when taxes are paid or recovered.

Unrecognized income tax benefits represent income tax positions taken on income tax returns that have not been recognized in the consolidated financial statements. The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, we accrue interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the Consolidated Statements of Operations. The Company does not anticipate material changes in the amount of unrecognized income tax benefits over the next year.

Concentrations of Risk. Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents and accounts receivable. All cash equivalents are managed within established guidelines which limit the amount that may be invested with one issuer. A significant percentage of our accounts receivable have been, and will continue to be, concentrated among a relatively small number of automotive retailers and warehouse distributors in the United States. Our four largest customers accounted for 71% and 82% of net accounts receivable as of December 25, 2021 and December 26, 2020, respectively. We continually monitor the credit terms and credit limits to these and other customers.

In fiscal 2021 and fiscal 2020, approximately 74% and 77%, respectively, of our products were purchased from suppliers located in a variety of foreign countries, with the largest portion coming from China.

Fair Value Disclosures. The carrying value of financial instruments such as cash and cash equivalents, accounts receivable, accounts payable, and other current assets and liabilities approximate their fair value based on the short-term nature of these instruments. Additionally, the fair value of assets acquired and liabilities assumed are determined at the date of acquisition. Contingent consideration associated with an acquisition is recorded at fair value at the acquisition date and is adjusted to fair value at each reporting period.

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Business Acquisitions and Investments

12 Months Ended

Dec. 25, 2021

Business Combinations [Abstract]

Business Acquisitions and Investments

2. Business Acquisitions and Investments

DPL Holding Corporation (“Dayton Parts”)

On August 10, 2021, we acquired 100% of the equity interests of Dayton Parts, a manufacturer of chassis and other parts designed to serve the heavy-duty vehicle sector of the aftermarket for a purchase price of $344.9 million in cash (net of $8.8 million of acquired cash), after certain customary post-acquisition purchase price adjustments.

The acquisition was funded by cash on hand as well as through the refinancing of our revolving credit facility discussed further in Note 7.

The transaction was accounted for as a business combination under the acquisition method of accounting. We have allocated the purchase price to tangible and identifiable intangible assets acquired and liabilities assumed based on their estimated fair values.

During the year ended December 25, 2021, we recorded measurement and period adjustments of approximately $2.1 million to decrease goodwill, $0.6 million to decrease the purchase price due to customary net working capital adjustments, $0.1 million to increase other current liabilities, and $1.6 million to decrease deferred tax liabilities. Our measurement period adjustments for Dayton Parts were complete as of December 25, 2021.

The table below details the fair values of the assets acquired and the liabilities assumed at the acquisition date, including applicable measurement period adjustments:

(in thousands)
Accounts receivable	$	23,216
Inventories		79,625
Prepaids and other current assets		2,302
Property, plant and equipment		29,900
Goodwill		106,816
Identifiable intangible assets		160,400
Operating lease right-of-use assets		21,248
Other assets		848
Accounts payable		(11,970	)
Accrued compensation		(2,784	)
Other current liabilities		(7,604	)
Long-term operating lease liabilities		(18,444	)
Deferred tax liabilities		(38,665	)
Net cash consideration	$	344,888

The estimated valuation of the intangible assets acquired, and related amortization periods are as follows:

(in thousands)	Fair Value		Amortization Period (in years)
Customer relationships	$	124,100		20
Product portfolio		25,300		20
Trade names		11,000		10
Total	$	160,400

The fair values assigned to intangible assets were estimated by discounting expected cash flows based on the relief from royalty and multi-period excess earnings valuation methodologies. These valuation methods rely on management judgment, including expected future cash flows resulting from existing customer relationships, customer attrition rates, contributory effects of other assets utilized in the business, royalty rates and other factors.

The goodwill recognized is attributable primarily to strategic and synergistic opportunities related to the Company’s and Dayton Parts’ existing automotive aftermarket businesses, the assembled workforce of Dayton Parts and other factors. The goodwill is not expected to be deductible for tax purposes.

The financial results of the acquisition have been included in the consolidated financial statements since the date of acquisition. The net sales and net income of Dayton Parts included in the consolidated financial statements for the fiscal year ended December 25, 2021 were $78.0 million and $0.0 million, respectively.

The unaudited pro forma information for the periods set forth below gives effect to the Dayton Parts acquisition as if it had occurred as of December 28, 2019, the beginning of the fiscal 2020 period.

The pro forma information is presented for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved had the acquisition been consummated as of that time.

	For the Year Ended
(in thousands, unaudited)	December 25, 2021		December 26, 2020
Net sales	$	1,468,415	$	1,260,077
Net income	$	147,090	$	100,334
Diluted earnings per share	$	4.60	$	3.10

The fiscal 2021 unaudited pro forma net income set forth above was adjusted to exclude the impact of acquisition date fair value adjustments to inventory, and to also remove acquisition-related transaction costs. The 2020 unaudited pro forma net income was adjusted to include the impact of these items.

Power Train Industries, Inc.

On January 2, 2020, we acquired the remaining 60% of the outstanding stock of PTI. The total purchase price for PTI was approximately $30.7 million, which included $18.4 million paid for the remaining 60% of the outstanding stock, subject to customary purchase price adjustments, and $12.3 million which represents the fair value of the previously held 40% equity interest in PTI that was acquired by the Company in 2016. As a result of the acquisition, we recorded a gain of approximately $2.5 million in other income (expense), net during the year ended December 26, 2020 from the increase in fair value of the previously owned 40% interest in PTI. We previously accounted for our 40% interest as an equity-method investment.

The transaction was accounted for as a business combination under the acquisition method of accounting. Accordingly, the assets acquired, and liabilities assumed were recorded at fair value, with the remaining purchase price recorded as goodwill.

In connection with this acquisition, we recorded $16.7 million in goodwill, $7.3 million of identified intangibles, and $6.7 million of other assets, net, consisting of $3.5 million of cash, $2.0 million of accounts receivable, $5.6 million of inventory, and ($4.4 million) of net other assets and liabilities.

Our measurement period adjustments for PTI were complete as of December 26, 2020.

The valuation of the intangible assets acquired and related amortization periods are as follows:

(in thousands)	Valuation		Amortization Period (in years)
Customer relationships	$	4,600		15
Trade names		700		5
Technology		1,800		8
Other		190		5
Total	$	7,290

The fair values of the customer relationships and trade names were estimated using an income approach based on the present value of future cash flows.

The goodwill recognized is attributable primarily to strategic and synergistic opportunities related to existing automotive aftermarket businesses, the assembled workforce of PTI and other factors. The goodwill is not expected to be deductible for tax purposes.

The financial results of the acquisition have been included in the Consolidated Financial Statements since the date of acquisition.

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Inventories

12 Months Ended

Dec. 25, 2021

Inventory Disclosure [Abstract]

Inventories

3. Inventories

Inventories were as follows:

(in thousands)	December 25, 2021		December 26, 2020
Raw materials	$	12,746	$	—
Bulk product		225,879		136,726
Finished product		287,415		157,484
Packaging materials		5,948		4,509
Total	$	531,988	$	298,719

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Property, Plant and Equipment

12 Months Ended

Dec. 25, 2021

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

4. Property, Plant and Equipment

Property, plant and equipment include the following:

(in thousands)	December 25, 2021			December 26, 2020
Buildings	$	58,788		$	37,676
Machinery, equipment and tooling		146,999			131,853
Furniture, fixtures and leasehold improvements		7,303			5,468
Software and computer equipment		90,471			84,922
Total		303,561			259,919
Less-accumulated depreciation and amortization		(188,697	)		(168,910	)
Property, plant and equipment, net	$	114,864		$	91,009

Depreciation and amortization expenses associated with property, plant, and equipment were $26.3 million, $26.6 million, and $25.4 million in fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

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Leases

12 Months Ended

Dec. 25, 2021

Leases [Abstract]

Leases

5. Leases

We determine whether an arrangement is a lease at inception. This determination generally depends on whether the arrangement conveys the right to control the use of an identified fixed asset explicitly or implicitly for a period of time in exchange for consideration. Control of an underlying asset is conveyed if we obtain the rights to direct the use of the asset and to obtain substantially all of the economic benefit from its use. We have operating leases for distribution centers, sales offices and certain warehouse and office equipment. Our operating leases have remaining lease terms of 1 to 10 years, many of which include one or more renewal options. We consider these renewal options in determining the lease term used to establish our right-of-use assets and lease liabilities when it is determined that it is reasonably certain that the renewal option will be exercised. Substantially all of our equipment leases and some of our real estate leases have terms of less than one year. Some of our operating lease agreements include variable lease costs, primarily taxes, insurance, common area maintenance or increases in rental costs related to inflation.

Operating leases are included in the right-of-use lease assets, other current liabilities and long-term lease liabilities on the Consolidated Balance Sheet. Right-of-use assets and lease liabilities are recognized at each lease’s commencement date based on the present values of its lease payments over its respective lease term. When a borrowing rate is not explicitly available for a lease, our incremental borrowing rate is used based on information available at the lease’s commencement date to determine the present value of its lease payments. The incremental borrowing rate is not commonly quoted and is derived through a combination of inputs including our credit rating and the impact of full collateralization. The incremental borrowing rate is based on our collateralized borrowing capabilities over a similar term of the lease payments. We utilized the consolidated group borrowing rate for all leases as we operate a centralized treasury operation. Operating lease payments are recognized on a straight-line basis over the lease term. We had no material finance leases as of December 25, 2021 or December 26, 2020.

Practical Expedients and Accounting Policy Elections

We have made certain accounting policy elections and are using certain practical expedients permitted under GAAP, as follows:

• Include both lease and non-lease components as a single lease component, as non-lease components of contracts have not historically been material.

• Account for leases with terms of one year or less as short-term leases and, as such, are not included in the right-of-use assets or lease liabilities.

As of December 25, 2021 and December 26, 2020 there were no material variable lease costs or sublease income. Cash paid for operating leases was $9.2 million, $7.7 million and $6.0 million during

fiscal 2021, fiscal 2020 and fiscal 2019, respectively, which are classified in operating activities on the Consolidated Statements of Cash Flows. The following table summarizes the lease expense:

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Operating lease expense	$	9,549	$	7,732	$	7,362
Short-term lease expense		3,172		3,647		4,547
Total lease expense	$	12,721	$	11,379	$	11,909

Supplemental balance sheet information related to our operating leases is as follows:

(in thousands)	December 25, 2021			December 26, 2020
Operating lease right-of-use assets	$	59,029		$	39,002
Other accrued liabilities	$	10,065		$	5,470
Long-term operating lease liabilities		52,443			37,083
Total operating lease liabilities	$	62,508		$	42,553
Weighted average remaining lease term (years)		7.55			8.94
Weighted average discount rate		3.73	%		5.55	%

The following table summarizes the maturities of our lease liabilities for all operating leases as of December 25, 2021:

(in thousands)	December 25, 2021
2022	$	12,097
2023		10,388
2024		8,933
2025		7,374
2026		7,293
Thereafter		26,867
Total lease payments		72,952
Less: Imputed interest		(10,444	)
Present value of lease liabilities	$	62,508

In February of 2022, we signed a binding letter of intent for warehouse and distribution services that increases future lease payments for operating leases by a total of approximately $53 million over 12 years.

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Goodwill and Intangible Assets

12 Months Ended

Dec. 25, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

6. Goodwill and Intangible Assets

Goodwill

Goodwill included the following:

(in thousands)	December 25, 2021			December 26, 2020
Balance at beginning of period	$	91,080		$	74,458
Goodwill acquired		108,945			16,622
Measurement period adjustments for Dayton acquisition		(2,130	)		—
Foreign currency translation		(563	)		—
Balance at end of period	$	197,332		$	91,080

Intangible Assets

Intangible assets, subject to amortization, included the following:

			December 25, 2021						December 26, 2020
Intangible assets subject to amortization	Weighted Average Amortization Period (years)		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
(dollars in thousands)
Customer relationships		18.6	$	149,150	$	12,139	$	137,011	$	25,050	$	7,141	$	17,909
Trade names		10.0		17,760		2,592		15,168		6,760		1,585		5,175
Product Portfolio		19.9		25,300		460		24,840		—		—		—
Technology		6.9		2,167		571		1,596		2,167		323		1,844
Other		2.7		430		236		194		430		151		279
Total			$	194,807	$	15,998	$	178,809	$	34,407	$	9,200	$	25,207

Amortization expense associated with intangible assets was $6.5 million, $3.4 million and $2.6 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The estimated future amortization expense for intangible assets as of December 25, 2021, is summarized as follows:

(in thousands)
2022	$	11,954
2023		11,954
2024		11,810
2025		11,453
2026		10,418
Thereafter		121,220
Total	$	178,809

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Long-Term Debt

12 Months Ended

Dec. 25, 2021

Debt Disclosure [Abstract]

Long-Term Debt

7. Long-Term Debt

On August 10, 2021, in connection with the acquisition of Dayton Parts, we entered into a new credit agreement that provides for a $600 million revolving credit facility, including a letter of credit sub-facility of up to $60 million (the “New Facility”). The New Facility replaced our previous $100 million revolving credit facility. The New Facility matures on August 10, 2026 and is guaranteed by the Company’s material domestic subsidiaries (together with the Company, the “Credit Parties”) and is supported by a security interest in substantially all of the Credit Parties’ personal property and assets, subject to certain exceptions.

Borrowings under the New Facility bear interest at a rate per annum equal to, at the Company’s option, either a LIBOR rate (subject to a 0.00% floor) or a base rate, in each case plus an applicable margin of, initially (i) in the case of LIBOR rate, 1.250% or (ii) in the case of base rate loans, 0.250%. The applicable margin for (i) base rate loans ranges from 0.000% to 1.000% per annum and (ii) for LIBOR loans ranges from 1.000% to 2.000% per annum, in each case, based on the Total Net Leverage Ratio (as defined in the New Facility). The commitment fee is initially equal to 0.150% and thereafter ranges from 0.125% to 0.250% based on the Total Net Leverage Ratio. As of December 25, 2021, the interest rate on the outstanding borrowings under the New Facility was 1.35% and the commitment fee was 0.15%.

The New Facility contains affirmative and negative covenants, including, but not limited to, covenants regarding capital expenditures, share repurchases, and financial covenants related to the ratio of consolidated interest expense to consolidated EBITDA and the ratio of total net indebtedness to consolidated EBITDA, each as defined by the New Facility. As of December 25, 2021, we were not in default with respect to the New Facility.

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Related Party Transactions

12 Months Ended

Dec. 25, 2021

Related Party Transactions [Abstract]

Related Party Transactions

8. Related Party Transactions

We lease our Colmar, PA facility and a portion of our Lewisberry, PA facility from entities in which Steven L. Berman, our Executive Chairman, and certain of his family members are owners. Each lease is a non-cancelable operating lease. Total rental payments to those entities under these lease arrangements were $2.3 million, $1.8 million, and $1.6 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The lease for our corporate headquarters in Colmar, PA was renewed during November 2016, effective as of January 1, 2018, and will expire on December 31, 2022. The lease for our Lewisberry, PA operating facility was signed in September 2020 and will expire on December 31, 2027.

We are a partner in a joint venture with one of our suppliers and own a minority interest in two other suppliers. Purchases from these companies, and from PTI prior to our full acquisition on January 2, 2020 were $18.9 million, $10.7 million and $23.2 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively.

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Income Taxes

12 Months Ended

Dec. 25, 2021

Income Tax Disclosure [Abstract]

Income Taxes

9. Income Taxes

The components of the income tax provision (benefit) are as follows:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Current:
Federal	$	43,374		$	33,698		$	19,090
State		5,755			4,276			2,091
Foreign		1,075			491			(194	)
		50,204			38,465			20,987
Deferred:
Federal		(9,609	)		(8,475	)		2,084
State		(1,368	)		(893	)		(280	)
Foreign		(993	)		(231	)		(746	)
		(11,970	)		(9,599	)		1,058
Total	$	38,234		$	28,866		$	22,045

The following is a reconciliation of income taxes at the statutory tax rate to the Company's effective tax rate:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Federal taxes at statutory rate		21.0	%		21.0	%		21.0	%
State taxes, net of federal tax benefit		2.1			2.0			1.3
Research and development tax credit		(0.4	)		(0.6	)		(0.5	)
Federal permanent items		—			(0.2	)		(0.3	)
Effect of foreign operations		(0.2	)		0.1			(1.1	)
Other		—			(1.0	)		0.4
Effective tax rate		22.5	%		21.3	%		20.8	%

At December 25, 2021, we had $1.2 million of unrecognized tax benefits, all of which would affect our effective tax rate if recognized.

The following table summarizes the change in unrecognized tax benefits for the three years ended December 25, 2021:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Balance at beginning of year	$	1,060		$	2,301		$	2,390
Reductions due to lapses in statutes of limitations		—			—			(200	)
Reductions due to tax positions settled		—			(1,308	)		—
Reductions due to reversals of prior year positions		(30	)		(202	)		(28	)
Additions based on tax positions taken during the current period		174			269			139
Balance at end of year	$	1,204		$	1,060		$	2,301

We recognize interest and penalties related to unrecognized tax benefits in income tax expense. As of December 25, 2021, accrued interest and penalties related to unrecognized tax benefits were immaterial.

Deferred income taxes result from timing differences in the recognition of revenue and expense between tax and financial statement purposes. The sources of temporary differences are as follows: 

(in thousands)	December 25, 2021			December 26, 2020
Assets:
Inventories	$	13,689		$	11,346
Accounts receivable		18,589			16,452
Operating lease liability		14,526			9,352
Accrued expenses		7,515			3,671
Net operating losses		1,892			304
Foreign tax credits		469			631
State tax credits		819			625
Capital loss carryforward		467			—
Total deferred tax assets		57,966			42,381
Valuation allowance		(1,837	)		(1,256	)
Net deferred tax assets		56,129			41,125
Liabilities:
Depreciation		14,541			10,586
Goodwill and intangible assets		45,522			12,419
Operating lease right of use asset		13,733			8,560
Other		309			929
Gross deferred tax liabilities		74,105			32,494
Net deferred tax (liabilities) assets	$	(17,976	)	$	8,631

 A valuation allowance, if needed, reduces deferred tax assets to the amount expected to be realized. When determining the amount of net deferred tax assets that are more likely than not to be realized, the Company assesses all positive and negative evidence. This evidence includes, but is not limited to, prior earnings history, expected future earnings, carryback and carryforward periods and the feasibility of ongoing tax strategies that could potentially enhance the likelihood of the realization of the deferred tax asset. Management has determined it was necessary to establish a valuation allowance against the foreign tax credits, various state tax credits and a capital loss from investment.

Based on our history of taxable income and our projection of future earnings, we believe that it is more likely than not that sufficient taxable income will be generated in the foreseeable future to realize the remaining net deferred tax assets.

During the year, we adjusted the valuation allowance against the deferred tax assets noted above by $0.6 million primarily due to the increase in capital loss carryforward.

As of December 25, 2021, the Company has tax-effected net operating loss carryforwards of $1.7 million and $0.2 million for U.S federal and state jurisdictions, respectively. Tax-effected federal net operating losses of $0.1 million begin to expire in 2035. The remaining federal net operating losses do not expire. The state net operating loss carryforwards expire in various years starting in 2037.

We file income tax returns in the United States, Canada, China, India, and Mexico. All years before 2017 are closed for U.S. federal tax purposes. Tax years before 2017 are closed for the states in which we file. Tax years before 2018 are closed for tax purposes in Canada. Tax years before 2018 are closed for tax purposes in China. Tax years before 2016 are closed for tax purposes in Mexico. All tax years remain open for India.

The Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law on March 27, 2020 in response to the COVID-19 pandemic. The CARES Act, among other things, allows net operating losses incurred in 2018, 2019, and 2020 to be carried back to each of the five preceding taxable years to generate a refund of previously paid income taxes. The CARES Act also includes provisions relating to increased interest expense deductibility, refundable payroll tax credits, deferment of employer social security payments, and technical corrections to tax depreciation methods for qualified improvement property. Most significant to the Company is the accelerated depreciation on qualified improvement property. The Company continues to monitor Coronavirus-related federal and state relief opportunities. 

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Commitments and Contingencies

12 Months Ended

Dec. 25, 2021

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

10. Commitments and Contingencies

Shareholders’ Agreement. A shareholders’ agreement was entered into in September 1990 and amended and restated on July 1, 2006. Under the agreement, each of the late Richard Berman, Steven Berman, Jordan Berman, Marc Berman, Fred Berman, Deanna Berman and additional shareholders named in the agreement has, among other things, granted the others of them rights of first refusal, exercisable on a pro rata basis or in such other proportions as the exercising shareholders may agree, to purchase shares of our common stock which any of them, or upon their deaths their respective estates, proposes to sell to third parties. We have agreed with these shareholders that, upon their deaths, to the extent that any of their shares are not purchased by any of these surviving shareholders and may not be sold without registration under the Securities Act of 1933, as amended (the "1933 Act"), we will use our best efforts to cause those shares to be registered under the 1933 Act. The expenses of any such registration will be borne by the estate of the deceased shareholder. The additional shareholders that are a party to the agreement are trusts affiliated with the late Richard Berman, Steven Berman, Jordan Berman, Marc Berman or Fred Berman, or each person’s respective spouse or children.

CBP Matter. During 2019, we commenced a voluntary disclosure process in which we committed to disclosing to U.S. Customs & Border Protection (“CBP”) certain product misclassifications and reimbursing CBP for any resulting underpayment of duties that were identified as part of a voluntary internal review conducted by the Company. The Company recorded an estimated liability of $2.8 million in its Statement of Operations for the year ended December 28, 2019, which represents the Company’s estimated underpayment of duties, after deducting its estimated overpayment of duties, to CBP due to misclassifications over the prior five-year period, which is the applicable statute of limitations, plus applicable interest.

In June 2020, we completed our internal review and submitted our prior disclosure statement to CBP, along with payment of $2.8 million for underpaid duties and interest. We have cooperated with CBP in connection with its review of our prior disclosure submission, including providing additional information as requested. CBP has not yet communicated that its review of our prior disclosure submission is completed.

Acquisitions. We have contingent consideration related to certain of our prior acquisitions due to the uncertainty of the ultimate amount of payment which will become due as earnout payments if performance targets are achieved. During the fiscal year ended December 25, 2021, we paid $10.4 million in contingent consideration in connection with prior acquisitions based upon performance targets. As of December 26,

2020, we had accrued approximately $8.0 million, which represented our estimate at the time of the fair value of the estimated payments that would have become due in connection with these prior acquisitions if performance targets are achieved. Changes in the accrual balance during fiscal 2020 and fiscal 2019 were included in Selling, General and Administrative expenses in each of the respective periods. If the remaining performance targets are fully achieved, the maximum additional contingent payments to be made under the related acquisition agreements would be $3.6 million.

Other Contingencies. We are a party to or otherwise involved in legal proceedings that arise in the ordinary course of business, such as various claims and legal actions involving contracts, employment claims, competitive practices, intellectual property infringement, product liability claims and other matters arising out of the conduct of our business. In the opinion of management, none of the actions, individually or in the aggregate, taking into account relevant insurance coverage, would likely have a material financial impact on the Company and we believe the range of reasonably possible losses from current matters, taking into account relevant insurance coverage, is immaterial. However, legal matters are subject to inherent uncertainties and there exists the possibility that the ultimate resolution of any of these matters could have a material adverse impact on the Company’s cash flows, financial position and results of operations in the period in which any such effects are recorded.

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Revenue Recognition

12 Months Ended

Dec. 25, 2021

Revenue From Contract With Customer [Abstract]

Revenue Recognition

11. Revenue Recognition

Business Description

We are a supplier of replacement parts and fasteners for passenger cars and light-, medium- and heavy-duty trucks in the automotive aftermarket. We group our products into four major classes: powertrain, automotive body, chassis, and hardware. Our products are sold primarily in the United States through automotive aftermarket retailers, including through their online platforms, national and regional local warehouse distributors and specialty markets, and salvage yards. We also distribute automotive replacement parts internationally, with sales primarily into Canada, Mexico, Europe, the Middle East, and Australia.

Our primary source of revenue is from contracts with and purchase orders from customers. In most instances, our contract with a customer is the customer’s purchase order. Upon acceptance of the purchase order, a contract exists with a customer as a sales agreement indicates approval and commitment of the parties, identifies the rights of both parties, identifies the payment terms, and has commercial substance. At this point, we believe it is probable that we will collect the consideration to which we will be entitled in exchange for the goods transferred to the customer.

For certain customers, we may also enter into a sales agreement that outlines pricing considerations as well as the framework of terms and conditions which apply to future purchase orders for that customer. In these situations, our contract with the customer is both the sales agreement as well as the specific customer purchase order. As our contract with a customer is typically for a single transaction or customer purchase order, the duration of the contract is typically one year or less. As a result, we have elected to apply certain practical expedients and omit certain disclosures of remaining performance obligations for contracts that have an initial term of one year or less as permitted by GAAP.

Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer, and collection is reasonably assured. We estimate the transaction price at the inception of a contract or upon fulfilling a purchase order, including any variable consideration, and will update the estimate for changes in circumstances.

We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits and other discounts in the period the related product revenue is recognized (“Customer Credits”). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Actual Customer Credits have not differed materially from estimated amounts for each

period presented. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold. We have concluded that our estimates of variable consideration are not constrained according to the definition in the standard.

All of our revenue was recognized under the point of time approach during fiscal 2021, fiscal 2020 and fiscal 2019. Also, we do not have significant financing arrangements with our customers. Our credit terms are all less than one year. Lastly, we do not receive noncash consideration (such as materials or equipment) from our customers to facilitate the fulfillment of our contracts.

Practical Expedients and Accounting Policy Elections

We have made certain accounting policy elections and are using certain practical expedients permitted under GAAP, as follows:

• Not adjust the promised amount of consideration for the effects of a significant financing component as we expect, at contract inception, that the period between when we transfer a promised good or service to the customer and when the customer pays for that good or service will be one year or less.

• Expense costs to obtain a contract as incurred when the expected period of benefit, and therefore the amortization period, is one year or less.

• Exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with a specific revenue-producing transaction and collected by the entity for a customer, including sales, use, value-added, excise and various other taxes.

• Account for shipping and handling activities that occur after the customer has obtained control of a good as a fulfilment activity rather than a separate performance obligation.

Disaggregated Revenue

The following tables present our disaggregated net sales by type of major good / product line, and geography.

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Powertrain	$	539,235	$	442,221	$	395,975
Chassis		458,986		324,399		297,350
Automotive Body		288,599		266,699		251,506
Hardware		58,429		59,429		46,498
Net Sales	$	1,345,249	$	1,092,748	$	991,329

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Net Sales to U.S. Customers	$	1,269,050	$	1,031,183	$	929,908
Net Sales to Non-U.S. Customers		76,199		61,565		61,421
Net Sales	$	1,345,249	$	1,092,748	$	991,329

During fiscal 2021 and fiscal 2020, three customers each accounted for more than 10% of net sales and in the aggregate accounted for 54% and 56% of net sales in fiscal 2021 and fiscal 2020, respectively. In fiscal 2019, four customers each accounted for more than 10% of net sales and in the aggregate accounted for approximately 66% of net sales. 

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Capital Stock

12 Months Ended

Dec. 25, 2021

Equity [Abstract]

Capital Stock

12. Capital Stock

Controlling Interest by Officers, Directors and Family Members. As of December 25, 2021 and December 26, 2020, Steven Berman, the Executive Chairman of the Company, and members of his family

beneficially owned approximately 17% and 18% of the outstanding shares of our common stock, respectively and could influence matters requiring approval of shareholders, including the election of the Board of Directors and the approval of significant transactions.

Undesignated Stock. We have 50,000,000 shares authorized of undesignated capital stock for future issuance. The designation, rights and preferences of such shares will be determined by our Board of Directors.

Incentive Stock Plan. Prior to May 16, 2018, we issued stock compensation grants under our 2008 Stock Option and Stock Incentive Plan. On May 16, 2018, our shareholders approved our 2018 Stock Option and Stock Incentive Plan (the “2018 Plan” or the “Plan”), which supersedes our 2008 Stock Option and Stock Incentive Plan. All future stock compensation grants will be issued under the 2018 Plan. Under the terms of the Plan, our Board of Directors may grant up to 1,200,000 shares of common stock in the form of shares of restricted stock, restricted stock units, stock appreciation rights and stock options, or combinations thereof, to officers, directors, employees, consultants and advisors. Grants under the Plan must be made within ten years of the date the Plan was approved. Stock options are exercisable upon the terms set forth in each grant agreement approved by the Board of Directors, but in no event more than ten years from the date of grant. Restricted stock and restricted stock units vest in accordance with the terms set forth in each applicable award agreement approved by our Board of Directors. At December 25, 2021, 727,834 shares were available for grant under the Plan.

Restricted Stock Awards (“RSAs”) and Restricted Stock Units (“RSUs”)

Prior to March 2020, we issued RSAs to certain employees and members of our Board of Directors. Grants were made in the form of time-based RSAs and performance-based RSAs. For all RSAs, we retain the restricted stock, and any dividends paid thereon, until the vesting restrictions have been met. For time-based RSAs, compensation cost is recognized on a straight-line basis over the vesting period and is calculated using the closing price per share of our common stock on the grant date. Prior to 2019, we issued performance-based RSAs tied to growth in adjusted pre-tax income. Compensation costs related to those awards is recognized over the performance period and is calculated using the closing price per share of our common stock on the grant date and an estimate of the probable outcome of the performance conditions as of the reporting date. In 2019, we introduced performance-based RSAs that vest based on our total shareholder return ranking relative to the S&P Mid-Cap 400 Growth Index over a three-year performance period. For those awards, compensation cost is recognized on a straight-line basis over the performance period and is calculated using the simulated fair value per share of our common stock based on the application of a Monte Carlo simulation model. This valuation technique includes estimating the movement of stock prices and the effects of volatility, interest rates and dividends.

Beginning in March 2020, we began issuing RSUs to certain employees and members of our Board of Directors. For time-based RSUs, compensation cost is recognized on a straight-line basis over the vesting period and is calculated using the closing price per share of our common stock on the grant date. Also, in March 2020, we began issuing performance-based RSUs that vest based on our total shareholder return ranking relative to the S&P Mid-Cap 400 Growth Index over a three-year performance period. For performance-based RSUs tied to total shareholder return, compensation cost is recognized on a straight-line basis over the performance period and is calculated using the simulated fair value per share of our common stock based on the application of a Monte Carlo simulation model as discussed in the paragraph above.

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of total shareholder return performance-based RSAs and performance-based RSUs granted:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Share price	$	101.45		$	61.68		$	82.03
Expected dividend yield		0.0	%		0.0	%		0.0	%
Expected stock price volatility		38.9	%		31.5	%		27.7	%
Risk-free interest rate		0.2	%		0.9	%		2.5	%
Expected life	2.8 years			2.8 years			2.8 years

The share price is the company’s closing share price as of the valuation date. The risk-free rate is based on the U.S. Treasury security with terms equal to the expected time of vesting as of the grant date. The weighted-average grant-date fair value of total shareholder return performance-based RSAs and RSU’s granted during fiscal 2021, fiscal 2020, and fiscal 2019 were $131.02, $65.09, and $81.44, respectively.

Compensation cost related to performance-based and time-based RSAs and RSUs was $6.1 million, $3.2 million and $2.1 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively, and was included in selling, general and administrative expense in the Consolidated Statements of Operations. No cost was capitalized during fiscal 2021, fiscal 2020 or fiscal 2019.

The following table summarizes our RSA and RSU activity for the three years ended December 25, 2021: 

	Shares			Weighted Average Fair Value
Balance at December 29, 2018		170,737		$	63.94
Granted		92,396		$	81.92
Vested		(41,586	)	$	55.72
Canceled		(44,056	)	$	58.03
Balance at December 28, 2019		177,491		$	76.70
Granted		83,875		$	64.66
Vested		(27,477	)	$	71.25
Canceled		(16,154	)	$	76.44
Balance at December 26, 2020		217,735		$	72.77
Granted		81,694		$	106.23
Vested		(45,970	)	$	70.62
Canceled		(46,782	)	$	74.85
Balance at December 25, 2021		206,677		$	85.97

As of December 25, 2021, there was approximately $9.7 million of unrecognized compensation cost related to unvested RSAs and RSUs, which is expected to be recognized over a weighted-average period of approximately 2.3 years.

Cash flows resulting from tax deductions in excess of the tax effect of compensation cost recognized in the financial statements are classified as operating cash flows. The excess tax benefit generated from RSAs and RSUs was immaterial for all periods presented.

Stock Options

We grant stock options to certain employees. We expense the grant-date fair value of stock options as compensation cost over the vesting or performance period. Compensation cost charged against income for stock options was $1.3 million, $1.0 million and $0.7 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively, and was included in selling, general and administrative expense in the Consolidated Statements of Operations. No cost was capitalized during fiscal 2021, fiscal 2020 or fiscal 2019.

We used the Black-Scholes option valuation model to estimate the fair value of stock options granted. Expected volatility and expected dividend yield are based on the actual historical experience of our common stock. The expected life represents the period of time that options granted are expected to be outstanding and was calculated using historical option exercise data. The risk-free rate is based on the U.S. Treasury security with terms equal to the expected time of exercise as of the grant date.

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of options granted and the associated weighted-average grant-date fair values:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Expected dividend yield		0	%		0	%		0	%
Expected stock price volatility		34	%		29	%		28	%
Risk-free interest rate		0.7	%		0.8	%		2.3	%
Expected life of options	5.3 years			5.3 years			5.4 years
Weighted-average grant-date fair value	$	31.68		$	17.84		$	24.32

The following table summarizes our stock option activity for the three years ended December 25, 2021:

	Shares			Option Price per Share	Weighted Average Price		Weighted Average Remaining Terms (years)		Aggregate Intrinsic Value (in thousands)
Balance at December 29, 2018		188,469		$7.74 – $82.94	$	66.14
Granted		44,025		$73.72 – $84.93	$	81.84
Exercised		(38,009	)	$7.74 – $78.76	$	58.96
Canceled		(12,773	)	$41.59 – $82.94	$	75.52
Balance at December 28, 2019		181,712		$41.59 – $82.94	$	70.78
Granted		109,352		$61.68 – $83.06	$	63.25
Exercised		(31,521	)	$41.59 – $82.94	$	50.77
Canceled		(8,764	)	$61.68 – $74.21	$	65.24
Balance at December 26, 2020		250,779		$41.59 – $84.93	$	70.21
Granted		59,578		$95.98 – $103.61	$	101.36
Exercised		(67,504	)	$41.59 – $82.94	$	70.04
Canceled		(9,457	)	$61.68 – $101.45	$	79.02
Balance at December 25, 2021		233,396		$61.68 – $103.61	$	77.85		5.5	$	6,664
Exercisable at December 25, 2021		70,488		$61.68 – $84.93	$	73.40		4.1	$	2,328

As of December 25, 2021, there was approximately $1.7 million of unrecognized compensation cost related to unvested stock options, which is expected to be recognized over a weighted-average period of approximately 2.3 years.

Cash received from option exercises was $2.5 million, $1.2 million, and $0.1 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The tax benefit generated from option exercises was immaterial for all periods presented.

Employee Stock Purchase Plan. In May 2017, our shareholders approved the Dorman Products, Inc. Employee Stock Purchase Plan (the “ESPP”), which makes available 1,000,000 shares of our common stock for sale to eligible employees. The purpose of the ESPP, which is qualified under Section 423 of the Internal Revenue Service Code of 1986, as amended, is to encourage stock ownership through payroll deductions and limited cash contributions by our employees. These contributions are used to purchase shares of the Company’s common stock at a 15% discount from the lower of the market price at the beginning or end of the purchase window. Beginning in March 2018, share purchases under the plan were

made twice annually, with the purchase windows being April to September and October to March. In 2021, the decision was made to modify the timing of those two purchase windows to align them with the calendar year. As a result, beginning January 2022, the two purchase windows are January to June and July to December. In order to effectuate that alignment, the purchase window beginning in October 2021 was shortened from six months to three months and ended December 2021. There were 40,303 shares, 79,089 shares and 21,200 shares purchased under this plan during fiscal 2021, fiscal 2020 and fiscal 2019, respectively. Compensation cost under the ESPP plan was $0.9 million, $3.3 million and $0.3 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. The tax benefit generated from ESPP purchases was immaterial in fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

Common Stock Repurchases. We periodically repurchase, at the then current market price, and cancel common stock issued to the Dorman Products, Inc. 401(k) Plan and Trust (the “401(k) Plan”). 401(k) Plan participants can no longer purchase shares of Dorman common stock as an investment option under the 401(k) Plan. Shares are generally purchased from the 401(k) Plan when participants sell units as permitted by the 401(k) Plan or elect to leave the 401(k) Plan upon retirement, termination or other reasons. The following table summarizes the repurchase and cancellation of common stock:

	For the Year Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		11,452		23,360		22,380
Total cost of shares repurchased and canceled (in thousands)	$	1,172	$	1,895	$	1,953
Average price per share	$	102.38	$	81.12	$	87.26

At December 25, 2021, the 401(k) Plan held 183,916 shares of our common stock.

Share Repurchase Program. On December 12, 2013 we announced that our Board of Directors authorized a share repurchase program, authorizing the repurchase of up to $10 million of our outstanding common stock by the end of 2014. Through several expansions and extensions, our Board of Directors has expanded the program up to $500 million and extended the program through December 31, 2022. Under this program, share repurchases may be made from time to time depending on market conditions, share price, share availability and other factors at our discretion. The share repurchase program does not obligate us to acquire any specific number of shares. At December 25, 2021, $145.6 million was available for repurchase under this program.

The following table summarizes the repurchase and cancellation of common stock:

	For the Years Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		605,628		439,275		499,564
Total cost of shares repurchased and canceled (in thousands)	$	61,583	$	36,781	$	39,387
Average price per share	$	101.68	$	83.73	$	78.84

401(k) Retirement Plans. The 401(k) Plan and the Dayton Parts, LLC 401(k) Savings Plan (the “Dayton 401(k) Plan”) are both defined contribution profit sharing and 401(k) plans that together cover substantially all of our employees as of December 25, 2021. Annual company contributions under both the 401(k) Plan and Dayton 401(k) Plan are discretionary in nature, in accordance with the respective plan documents. Total expense related to the 401(k) Plan and Dayton 401(k) Plan were $6.3 million, $5.7 million and $4.5 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. 

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Earnings Per Share

12 Months Ended

Dec. 25, 2021

Earnings Per Share [Abstract]

Earnings Per Share

13. Earnings Per Share

Basic earnings per share was calculated by dividing our net income by the weighted average number of common shares outstanding during the period, excluding unvested RSAs which are considered to be contingently issuable. To calculate diluted earnings per share, common share equivalents are added to the

weighted average number of common shares outstanding. Common share equivalents are calculated using the treasury stock method and are computed based on outstanding stock-based awards. Stock-based awards of approximately 14,250 shares, 35,975 shares and 92,000 shares were excluded from the calculation of diluted earnings per share for fiscal 2021, fiscal 2020 and fiscal 2019, respectively, as their effect would have been anti-dilutive.

The following table sets forth the computation of basic earnings per share and diluted earnings per share:  

	For the Year Ended
(in thousands, except per share data)	December 25, 2021		December 26, 2020		December 28, 2019
Numerator:
Net income	$	131,532	$	106,870	$	83,762
Denominator:
Weighted average basic shares outstanding		31,810		32,280		32,606
Effect of compensation awards		151		93		82
Weighted average diluted shares outstanding		31,961		32,373		32,688
Earnings Per Share:
Basic	$	4.13	$	3.31	$	2.57
Diluted	$	4.12	$	3.30	$	2.56

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Business Segments

12 Months Ended

Dec. 25, 2021

Segment Reporting [Abstract]

Business Segments

14. Business Segments

We have determined that our business comprises a single reportable operating segment, namely, the sale of replacement parts and fasteners for passenger cars and, light-, medium-, and heavy-duty trucks in the automotive aftermarket industry.

Net sales to countries outside the United States, primarily to Canada and Mexico, and to a lesser extent into Europe, the Middle East, and Australia, in fiscal 2021, fiscal 2020 and fiscal 2019 were $76.2 million, $61.6 million and $61.4 million, respectively.

Net long-lived assets outside the United States, consisting of net property, plant and equipment was $1.0 million as of December 25, 2021. There were no long-lived assets outside of the United States as of December 26, 2020. 

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Schedule II: Valuation and Qualifying Accounts

12 Months Ended

Dec. 25, 2021

Valuation And Qualifying Accounts [Abstract]

Schedule II: Valuation and Qualifying Accounts

SCHEDULE II: Valuation and Qualifying Accounts

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Allowance for doubtful accounts:
Balance, beginning of period	$	1,260		$	957		$	982
Provision		177			315			39
Charge-offs		(111	)		(111	)		(64	)
Acquisitions and other		—			99			—
Balance, end of period	$	1,326		$	1,260		$	957
Allowance for customer credits:
Balance, beginning of period	$	155,751		$	105,950		$	90,596
Provision		334,615			308,783			274,243
Charge-offs		(302,286	)		(258,982	)		(258,889	)
Balance, end of period	$	188,080		$	155,751		$	105,950

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Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 25, 2021

Accounting Policies [Abstract]

Principles of Consolidation

Principles of Consolidation. The Consolidated Financial Statements include our accounts and the accounts of our wholly owned subsidiaries. All material intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates in the Preparation of Financial Statements

Use of Estimates in the Preparation of Financial Statements. The preparation of financial statements in accordance with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

Cash and Cash Equivalents

Cash and Cash Equivalents. We consider all highly liquid short-term investments with original maturities of three months or less to be cash equivalents.

Sales of Accounts Receivable

Sales of Accounts Receivable. We have entered into several customer-sponsored programs administered by unrelated financial institutions that permit us to sell certain accounts receivable at discounted rates to the financial institutions. Transactions under these programs were accounted for as sales of accounts receivable and were removed from our Consolidated Balance Sheet at the time of the sales transactions. During fiscal 2021, fiscal 2020 and fiscal 2019, we sold $935.8 million, $740.0 million and $676.4 million, respectively, under these programs. Selling, general and administrative expenses include financing costs associated with these accounts receivable sales programs of $11.7 million, $13.2 million and $16.7 million in fiscal 2021, fiscal 2020 and fiscal 2019, respectively. Financing costs are impacted both by interest rates and the timing of when accounts receivable are sold in comparison to the original due dates of those accounts receivable.

Inventories

Inventories. Inventories are stated at the lower of cost or net realizable value. Cost is determined by the first-in, first-out method. Inventories include the cost of material, freight, direct labor and overhead utilized in the processing of our products. We provide reserves for discontinued and excess inventory based upon historical demand, forecasted usage, estimated customer requirements and product line updates.

Property, Plant and Equipment

Property, Plant and Equipment. Property, plant and equipment are recorded at cost and depreciated over the estimated useful lives, which range from 3 to 39 years, using the straight-line method for financial statement reporting purposes and accelerated methods for income tax purposes. The costs of maintenance and repairs are expensed as incurred. Renewals and betterments are capitalized. Gains and losses on disposals are included in operating results.

Estimated useful lives by major asset category are as follows:

Buildings and building improvements	10 to 39 years
Machinery, equipment and tooling	3 to 7 years
Software and computer equipment	3 to 10 years
Furniture, fixtures and leasehold improvements	7 to 39 years

Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets

Long-Lived Assets Including Goodwill and Other Acquired Intangible Assets. Long-lived assets, including property, plant, and equipment and amortizable identifiable intangibles, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. The impairment review is a two-step process. First, recoverability is measured by comparing the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount exceeds the estimated undiscounted future cash flows, the second step of the impairment test is performed, and an impairment charge is recognized in the amount by which the carrying amount of the asset exceeds its fair value. The assets and liabilities of a disposal group classified as held for sale would be separately presented in the balance sheet and reported at the lower of the carrying amount or fair value less costs to sell, and would no longer be depreciated.

Goodwill is reviewed for impairment on an annual basis or whenever events or changes in circumstances indicate the carrying value of the goodwill may be impaired. For the annual test, we have the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If we determine it is not more likely than not that the fair value of a reporting unit is less than its carrying amount, then performing the two-step impairment test is unnecessary. During fiscal 2021 and fiscal 2020, we assessed the qualitative factors which could affect the fair values of our reporting unit and determined that it was not more likely than not that the fair value of our reporting unit was less than its carrying amount.

Purchase Accounting

Purchase Accounting. The purchase price of an acquired business is allocated to the underlying tangible and intangible assets acquired and liabilities assumed based upon their respective fair market values, with the excess recorded as goodwill. Such fair market value assessments require judgments and estimates which may change over time and may cause the final amounts to differ materially from their original estimates. These adjustments to fair value assessments are recorded to goodwill over the purchase price allocation period which cannot exceed 12 months from the date of acquisition.

Other Assets

Other Assets. Other assets include primarily long-term core inventory, deposits, and equity method investments.

Certain products we sell contain parts that can be recycled, or as more commonly referred to in our industry, remanufactured. We refer to these parts as cores. A used core is remanufactured and sold to the customer as a replacement for a unit inside a vehicle. Customers and end-users that purchase remanufactured products will generally return the used core to us, which we then use in the remanufacturing process to make another finished good. Our core inventory consists of used cores purchased and held in our facilities, used cores that are in the process of being returned from our customers and end-users, and remanufactured cores held in finished goods inventory at our facilities. Our products that utilize a core primarily include instrument clusters, hybrid batteries, radios, and climate control modules.

Long-term core inventory was $20.8 million and $19.6 million as of December 25, 2021 and December 26, 2020, respectively. Long-term core inventory is recorded at the lower of cost or net realizable value. Cost is determined based on actual purchases of core inventory. We believe that the most appropriate classification of core inventory is a long-term asset. According to guidance provided under the Financial Accounting Standards Board Accounting Standards Codification (“ASC”), current assets are defined as “assets or resources commonly identified as those which are reasonably expected to be realized in cash or sold or consumed during the normal operating cycle of the business.” The determination of the long-term classification is based on our view that the value of the cores is not expected to be consumed or realized in cash during our normal annual operating cycle.

We have investments that we account for according to the equity method of accounting. The total book value of these investments was $9.4 million and $8.5 million as of December 25, 2021 and December 26, 2020, respectively. These investments provided us $4.6 million, $1.3 million and $3.2 million of income during fiscal 2021, fiscal 2020, and fiscal 2019, respectively. In January 2020, we

acquired the remaining 60% of the outstanding stock of Power Train Industries, Inc. (“PTI”), a privately-held supplier of parts to the automotive aftermarket, based in Reno, Nevada of which we held equity investments with a fair value of $12.3 million. Additionally, we have an investment that we account for according to the cost method of accounting. The carrying book value of this investment was $5.0 million as of both December 25, 2021 and December 26, 2020.

Other Accrued Liabilities

Other Accrued Liabilities. Other accrued liabilities include primarily accrued commissions, accrued income taxes, insurance liabilities, product warranties, and other current liabilities. We warrant our products against certain defects in material and workmanship when used as designed on the vehicle on which it was originally installed. We offer a limited lifetime warranty on most of our products. Our warranty limits the end-user’s remedy to the repair or replacement of the part that is defective. Product warranty reserves were immaterial as of December 25, 2021 and December 26, 2020 and are based upon experience and forecasts using the best historical and current claim information available. Provisions and payments related to end-user product warranty reserves were not material in fiscal 2021, fiscal 2020 or fiscal 2019.

Revenue Recognition and Accrued Customer Rebates and Returns

Revenue Recognition and Accrued Customer Rebates and Returns. Revenue is recognized from product sales when goods are shipped, title and risk of loss and control have been transferred to the customer and collection is reasonably assured. We record estimates for cash discounts, defective and slow-moving product returns, promotional rebates, core return deposits, and other discounts in the period of the sale ("Customer Credits"). The provision for Customer Credits is recorded as a reduction from gross sales and reserves for Customer Credits are shown as an increase of accrued customer rebates and returns, which is included in current liabilities. Customer Credits are estimated based on contractual provisions, historical experience, and our assessment of current market conditions. Actual Customer Credits have not differed materially from estimated amounts. Amounts billed to customers for shipping and handling are included in net sales. Costs associated with shipping and handling are included in cost of goods sold.

As noted above, Customer Credits include core return deposits which are an estimate of the amount we believe we will refund to our customers when used cores are returned to us. The price we invoice to customers for remanufactured cores contains both the amount we charge to remanufacture the part and a deposit for the core. We charge a core deposit to encourage the customer to return the used core to us so that it can be used in our remanufacturing process. We allow our customers up to twenty-four months to return the used core to us. Core return deposits are reserved based on the expected deposits to be issued to customers based on historical returns.

Research and Development

Research and Development. Research and development costs are expensed as incurred. Research and development costs totaling $23.1 million, $20.7 million and $21.0 million have been recorded in selling, general and administrative expenses in the Consolidated Statements of Operations for fiscal 2021, fiscal 2020, and fiscal 2019, respectively.

Stock-Based Compensation

Stock-Based Compensation. At December 25, 2021 and December 26, 2020, we had awards outstanding under two stock-based employee compensation plans, which are described more fully in Note 12, Capital Stock. We record compensation expense for all awards granted. The value of restricted stock awards (“RSAs”) and restricted stock units (“RSUs”) issued was based on the fair value of our common stock on the grant date. For performance-based RSAs tied to growth in adjusted pre-tax income, compensation costs related to the stock is recognized over the performance period and is calculated using the closing price per share of our common stock on the grant date and an estimate of the probable outcome of the performance conditions as of the reporting date. The fair value of performance-based RSUs, for which the performance measure is total shareholder return, is determined using a Monte Carlo simulation model. The fair value of stock options granted is determined using the Black-Scholes option valuation model on the grant date.

Income Taxes

Income Taxes. We follow the asset and liability method of accounting for deferred income taxes. Deferred tax assets and liabilities are determined based on the difference between the financial statement

and tax bases of assets and liabilities. Deferred tax assets or liabilities at the end of each period are determined using the enacted tax rate expected to be in effect when taxes are paid or recovered.

Unrecognized income tax benefits represent income tax positions taken on income tax returns that have not been recognized in the consolidated financial statements. The Company recognizes the benefit of an income tax position only if it is more likely than not (greater than 50%) that the tax position will be sustained upon tax examination, based solely on the technical merits of the tax position. Otherwise, no benefit is recognized. The tax benefits recognized are measured based on the largest benefit that has a greater than 50% likelihood of being realized upon ultimate settlement. Additionally, we accrue interest and related penalties, if applicable, on all tax exposures for which reserves have been established consistent with jurisdictional tax laws. Interest and penalties are classified as income tax expense in the Consolidated Statements of Operations. The Company does not anticipate material changes in the amount of unrecognized income tax benefits over the next year.

Concentrations of Risk

Concentrations of Risk. Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents and accounts receivable. All cash equivalents are managed within established guidelines which limit the amount that may be invested with one issuer. A significant percentage of our accounts receivable have been, and will continue to be, concentrated among a relatively small number of automotive retailers and warehouse distributors in the United States. Our four largest customers accounted for 71% and 82% of net accounts receivable as of December 25, 2021 and December 26, 2020, respectively. We continually monitor the credit terms and credit limits to these and other customers.

In fiscal 2021 and fiscal 2020, approximately 74% and 77%, respectively, of our products were purchased from suppliers located in a variety of foreign countries, with the largest portion coming from China.

Fair Value Disclosures

Fair Value Disclosures. The carrying value of financial instruments such as cash and cash equivalents, accounts receivable, accounts payable, and other current assets and liabilities approximate their fair value based on the short-term nature of these instruments. Additionally, the fair value of assets acquired and liabilities assumed are determined at the date of acquisition. Contingent consideration associated with an acquisition is recorded at fair value at the acquisition date and is adjusted to fair value at each reporting period.

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 25, 2021

Accounting Policies [Abstract]

Estimated Useful Lives by Major Asset

Estimated useful lives by major asset category are as follows:

Buildings and building improvements	10 to 39 years
Machinery, equipment and tooling	3 to 7 years
Software and computer equipment	3 to 10 years
Furniture, fixtures and leasehold improvements	7 to 39 years

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Business Acquisitions and Investments (Tables)

12 Months Ended

Dec. 25, 2021

Dayton Parts [Member]

Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed

The table below details the fair values of the assets acquired and the liabilities assumed at the acquisition date, including applicable measurement period adjustments:

(in thousands)
Accounts receivable	$	23,216
Inventories		79,625
Prepaids and other current assets		2,302
Property, plant and equipment		29,900
Goodwill		106,816
Identifiable intangible assets		160,400
Operating lease right-of-use assets		21,248
Other assets		848
Accounts payable		(11,970	)
Accrued compensation		(2,784	)
Other current liabilities		(7,604	)
Long-term operating lease liabilities		(18,444	)
Deferred tax liabilities		(38,665	)
Net cash consideration	$	344,888

Schedule of Valuation of Intangible Assets Acquired and Related Amortization Periods

The estimated valuation of the intangible assets acquired, and related amortization periods are as follows:

(in thousands)	Fair Value		Amortization Period (in years)
Customer relationships	$	124,100		20
Product portfolio		25,300		20
Trade names		11,000		10
Total	$	160,400

Summary of Unaudited Proforma Information

The pro forma information is presented for informational purposes only and is not necessarily indicative of the results of operations that would have been achieved had the acquisition been consummated as of that time.

	For the Year Ended
(in thousands, unaudited)	December 25, 2021		December 26, 2020
Net sales	$	1,468,415	$	1,260,077
Net income	$	147,090	$	100,334
Diluted earnings per share	$	4.60	$	3.10

Power Train Industries, Inc. [Member]

Schedule of Valuation of Intangible Assets Acquired and Related Amortization Periods

The valuation of the intangible assets acquired and related amortization periods are as follows:

(in thousands)	Valuation		Amortization Period (in years)
Customer relationships	$	4,600		15
Trade names		700		5
Technology		1,800		8
Other		190		5
Total	$	7,290

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Inventories (Tables)

12 Months Ended

Dec. 25, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories were as follows:

(in thousands)	December 25, 2021		December 26, 2020
Raw materials	$	12,746	$	—
Bulk product		225,879		136,726
Finished product		287,415		157,484
Packaging materials		5,948		4,509
Total	$	531,988	$	298,719

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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 25, 2021

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment include the following:

(in thousands)	December 25, 2021			December 26, 2020
Buildings	$	58,788		$	37,676
Machinery, equipment and tooling		146,999			131,853
Furniture, fixtures and leasehold improvements		7,303			5,468
Software and computer equipment		90,471			84,922
Total		303,561			259,919
Less-accumulated depreciation and amortization		(188,697	)		(168,910	)
Property, plant and equipment, net	$	114,864		$	91,009

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Leases (Tables)

12 Months Ended

Dec. 25, 2021

Leases [Abstract]

Summary of Lease Expense

The following table summarizes the lease expense:

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Operating lease expense	$	9,549	$	7,732	$	7,362
Short-term lease expense		3,172		3,647		4,547
Total lease expense	$	12,721	$	11,379	$	11,909

Summary of Supplemental Balance Sheet Information Related to Operating Leases

Supplemental balance sheet information related to our operating leases is as follows:

(in thousands)	December 25, 2021			December 26, 2020
Operating lease right-of-use assets	$	59,029		$	39,002
Other accrued liabilities	$	10,065		$	5,470
Long-term operating lease liabilities		52,443			37,083
Total operating lease liabilities	$	62,508		$	42,553
Weighted average remaining lease term (years)		7.55			8.94
Weighted average discount rate		3.73	%		5.55	%

Summary of Maturities of Operating Lease Liabilities

The following table summarizes the maturities of our lease liabilities for all operating leases as of December 25, 2021:

(in thousands)	December 25, 2021
2022	$	12,097
2023		10,388
2024		8,933
2025		7,374
2026		7,293
Thereafter		26,867
Total lease payments		72,952
Less: Imputed interest		(10,444	)
Present value of lease liabilities	$	62,508

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Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 25, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill

Goodwill included the following:

(in thousands)	December 25, 2021			December 26, 2020
Balance at beginning of period	$	91,080		$	74,458
Goodwill acquired		108,945			16,622
Measurement period adjustments for Dayton acquisition		(2,130	)		—
Foreign currency translation		(563	)		—
Balance at end of period	$	197,332		$	91,080

Schedule of Intangible Assets

Intangible Assets

Intangible assets, subject to amortization, included the following:

			December 25, 2021						December 26, 2020
Intangible assets subject to amortization	Weighted Average Amortization Period (years)		Gross Carrying Value		Accumulated Amortization		Net Carrying Value		Gross Carrying Value		Accumulated Amortization		Net Carrying Value
(dollars in thousands)
Customer relationships		18.6	$	149,150	$	12,139	$	137,011	$	25,050	$	7,141	$	17,909
Trade names		10.0		17,760		2,592		15,168		6,760		1,585		5,175
Product Portfolio		19.9		25,300		460		24,840		—		—		—
Technology		6.9		2,167		571		1,596		2,167		323		1,844
Other		2.7		430		236		194		430		151		279
Total			$	194,807	$	15,998	$	178,809	$	34,407	$	9,200	$	25,207

Schedule of Estimated Future Amortization Expense

The estimated future amortization expense for intangible assets as of December 25, 2021, is summarized as follows:

(in thousands)
2022	$	11,954
2023		11,954
2024		11,810
2025		11,453
2026		10,418
Thereafter		121,220
Total	$	178,809

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Income Taxes (Tables)

12 Months Ended

Dec. 25, 2021

Income Tax Disclosure [Abstract]

Components of Income Tax Provision (Benefit)

The components of the income tax provision (benefit) are as follows:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Current:
Federal	$	43,374		$	33,698		$	19,090
State		5,755			4,276			2,091
Foreign		1,075			491			(194	)
		50,204			38,465			20,987
Deferred:
Federal		(9,609	)		(8,475	)		2,084
State		(1,368	)		(893	)		(280	)
Foreign		(993	)		(231	)		(746	)
		(11,970	)		(9,599	)		1,058
Total	$	38,234		$	28,866		$	22,045

Reconciliation of Income Taxes at Statutory Tax Rate to Company's Effective Tax Rate

The following is a reconciliation of income taxes at the statutory tax rate to the Company's effective tax rate:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Federal taxes at statutory rate		21.0	%		21.0	%		21.0	%
State taxes, net of federal tax benefit		2.1			2.0			1.3
Research and development tax credit		(0.4	)		(0.6	)		(0.5	)
Federal permanent items		—			(0.2	)		(0.3	)
Effect of foreign operations		(0.2	)		0.1			(1.1	)
Other		—			(1.0	)		0.4
Effective tax rate		22.5	%		21.3	%		20.8	%

Change in Unrecognized Tax Benefits

The following table summarizes the change in unrecognized tax benefits for the three years ended December 25, 2021:

	For the Year Ended
(in thousands)	December 25, 2021			December 26, 2020			December 28, 2019
Balance at beginning of year	$	1,060		$	2,301		$	2,390
Reductions due to lapses in statutes of limitations		—			—			(200	)
Reductions due to tax positions settled		—			(1,308	)		—
Reductions due to reversals of prior year positions		(30	)		(202	)		(28	)
Additions based on tax positions taken during the current period		174			269			139
Balance at end of year	$	1,204		$	1,060		$	2,301

Reconciliation of Deferred Tax Assets and Liabilities

Deferred income taxes result from timing differences in the recognition of revenue and expense between tax and financial statement purposes. The sources of temporary differences are as follows: 

(in thousands)	December 25, 2021			December 26, 2020
Assets:
Inventories	$	13,689		$	11,346
Accounts receivable		18,589			16,452
Operating lease liability		14,526			9,352
Accrued expenses		7,515			3,671
Net operating losses		1,892			304
Foreign tax credits		469			631
State tax credits		819			625
Capital loss carryforward		467			—
Total deferred tax assets		57,966			42,381
Valuation allowance		(1,837	)		(1,256	)
Net deferred tax assets		56,129			41,125
Liabilities:
Depreciation		14,541			10,586
Goodwill and intangible assets		45,522			12,419
Operating lease right of use asset		13,733			8,560
Other		309			929
Gross deferred tax liabilities		74,105			32,494
Net deferred tax (liabilities) assets	$	(17,976	)	$	8,631

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Revenue Recognition (Tables)

12 Months Ended

Dec. 25, 2021

Revenue From Contract With Customer [Abstract]

Summary of Disaggregated Net Sales

The following tables present our disaggregated net sales by type of major good / product line, and geography.

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Powertrain	$	539,235	$	442,221	$	395,975
Chassis		458,986		324,399		297,350
Automotive Body		288,599		266,699		251,506
Hardware		58,429		59,429		46,498
Net Sales	$	1,345,249	$	1,092,748	$	991,329

	For the Year Ended
(in thousands)	December 25, 2021		December 26, 2020		December 28, 2019
Net Sales to U.S. Customers	$	1,269,050	$	1,031,183	$	929,908
Net Sales to Non-U.S. Customers		76,199		61,565		61,421
Net Sales	$	1,345,249	$	1,092,748	$	991,329

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Capital Stock (Tables)

12 Months Ended

Dec. 25, 2021

Schedule of Weighted Average Valuation Assumptions Used to Calculate Fair Value Granted

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of options granted and the associated weighted-average grant-date fair values:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Expected dividend yield		0	%		0	%		0	%
Expected stock price volatility		34	%		29	%		28	%
Risk-free interest rate		0.7	%		0.8	%		2.3	%
Expected life of options	5.3 years			5.3 years			5.4 years
Weighted-average grant-date fair value	$	31.68		$	17.84		$	24.32

Summary of Restricted Stock Awards and Restricted Stock Unit Activity

The following table summarizes our RSA and RSU activity for the three years ended December 25, 2021: 

	Shares			Weighted Average Fair Value
Balance at December 29, 2018		170,737		$	63.94
Granted		92,396		$	81.92
Vested		(41,586	)	$	55.72
Canceled		(44,056	)	$	58.03
Balance at December 28, 2019		177,491		$	76.70
Granted		83,875		$	64.66
Vested		(27,477	)	$	71.25
Canceled		(16,154	)	$	76.44
Balance at December 26, 2020		217,735		$	72.77
Granted		81,694		$	106.23
Vested		(45,970	)	$	70.62
Canceled		(46,782	)	$	74.85
Balance at December 25, 2021		206,677		$	85.97

Summary of Stock Option Activity

The following table summarizes our stock option activity for the three years ended December 25, 2021:

	Shares			Option Price per Share	Weighted Average Price		Weighted Average Remaining Terms (years)		Aggregate Intrinsic Value (in thousands)
Balance at December 29, 2018		188,469		$7.74 – $82.94	$	66.14
Granted		44,025		$73.72 – $84.93	$	81.84
Exercised		(38,009	)	$7.74 – $78.76	$	58.96
Canceled		(12,773	)	$41.59 – $82.94	$	75.52
Balance at December 28, 2019		181,712		$41.59 – $82.94	$	70.78
Granted		109,352		$61.68 – $83.06	$	63.25
Exercised		(31,521	)	$41.59 – $82.94	$	50.77
Canceled		(8,764	)	$61.68 – $74.21	$	65.24
Balance at December 26, 2020		250,779		$41.59 – $84.93	$	70.21
Granted		59,578		$95.98 – $103.61	$	101.36
Exercised		(67,504	)	$41.59 – $82.94	$	70.04
Canceled		(9,457	)	$61.68 – $101.45	$	79.02
Balance at December 25, 2021		233,396		$61.68 – $103.61	$	77.85		5.5	$	6,664
Exercisable at December 25, 2021		70,488		$61.68 – $84.93	$	73.40		4.1	$	2,328

Summary of Shares Repurchase and Cancellation

The following table summarizes the repurchase and cancellation of common stock:

	For the Year Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		11,452		23,360		22,380
Total cost of shares repurchased and canceled (in thousands)	$	1,172	$	1,895	$	1,953
Average price per share	$	102.38	$	81.12	$	87.26

The following table summarizes the repurchase and cancellation of common stock:

	For the Years Ended
	December 25, 2021		December 26, 2020		December 28, 2019
Shares repurchased and canceled		605,628		439,275		499,564
Total cost of shares repurchased and canceled (in thousands)	$	61,583	$	36,781	$	39,387
Average price per share	$	101.68	$	83.73	$	78.84

Performance Restricted Stock [Member]

Schedule of Weighted Average Valuation Assumptions Used to Calculate Fair Value Granted

The following table summarizes the weighted average valuation assumptions used to calculate the fair value of total shareholder return performance-based RSAs and performance-based RSUs granted:

	For the Year Ended
	December 25, 2021			December 26, 2020			December 28, 2019
Share price	$	101.45		$	61.68		$	82.03
Expected dividend yield		0.0	%		0.0	%		0.0	%
Expected stock price volatility		38.9	%		31.5	%		27.7	%
Risk-free interest rate		0.2	%		0.9	%		2.5	%
Expected life	2.8 years			2.8 years			2.8 years

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Earnings Per Share (Tables)

12 Months Ended

Dec. 25, 2021

Earnings Per Share [Abstract]

Schedule of Computation of Basic Earnings per Share and Diluted Earnings per Share

The following table sets forth the computation of basic earnings per share and diluted earnings per share:  

	For the Year Ended
(in thousands, except per share data)	December 25, 2021		December 26, 2020		December 28, 2019
Numerator:
Net income	$	131,532	$	106,870	$	83,762
Denominator:
Weighted average basic shares outstanding		31,810		32,280		32,606
Effect of compensation awards		151		93		82
Weighted average diluted shares outstanding		31,961		32,373		32,688
Earnings Per Share:
Basic	$	4.13	$	3.31	$	2.57
Diluted	$	4.12	$	3.30	$	2.56

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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 25, 2021 USD ($) Customer	Dec. 26, 2020 USD ($) Customer	Dec. 28, 2019 USD ($)	Jan. 31, 2020 USD ($)	Jan. 02, 2020
Significant Accounting Policies [Line Items]
Highly liquid short-term investments maturity date	three months or less
Sale of accounts receivable	$ 935.8	$ 740.0	$ 676.4
Factoring costs associated with the sales of accounts receivable	11.7	13.2	16.7
Long-term core inventory	20.8	19.6
Total book value of equity method investments with fair value	9.4	8.5
Income from equity method investments	4.6	1.3	3.2
Carrying book value of cost method investments	$ 5.0	$ 5.0
Number of largest customers | Customer	4	4
Credit Concentration Risk [Member] | Net Accounts Receivable [Member] | Four Customer [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	71.00%	82.00%
Supplier Concentration Risk [Member] | Products [Member] | Foreign Countries [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	74.00%	77.00%
Selling, General and Administrative Expenses [Member]
Significant Accounting Policies [Line Items]
Research and development costs	$ 23.1	$ 20.7	$ 21.0
Power Train Industries, Inc. [Member]
Significant Accounting Policies [Line Items]
Total book value of equity method investments with fair value				$ 12.3
Business acquisition, percentage of outstanding stock acquired				60.00%	60.00%
Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful life of Property, Plant and Equipment	3 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful life of Property, Plant and Equipment	39 years

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Summary of Significant Accounting Policies - Estimated Useful Lives by Major Asset (Detail)	12 Months Ended
	Dec. 25, 2021
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	3 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	39 years
Buildings and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	10 years
Buildings and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	39 years
Machinery, Equipment and Tooling [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	3 years
Machinery, Equipment and Tooling [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	7 years
Software and Computer Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	3 years
Software and Computer Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	10 years
Furniture, Fixtures and Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	7 years
Furniture, Fixtures and Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of Property, Plant and Equipment	39 years

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Business Acquisitions and Investments - Additional Information (Detail) - USD ($) $ in Thousands			12 Months Ended
	Aug. 10, 2021	Jan. 02, 2020	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019	Jan. 31, 2020
Business Acquisition [Line Items]
Business acquisition, purchase price			$ 345,483	$ 14,808
Business acquisition, measurement period adjustments, increase to goodwill			(2,130)
Net sales			1,345,249	1,092,748	$ 991,329
Net income			131,532	106,870	83,762
Business acquisition, goodwill			197,332	91,080	$ 74,458
Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Equity method investment, ownership percentage		40.00%
Dayton Parts [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of outstanding stock acquired	100.00%
Business acquisition, purchase price	$ 344,900
Business acquisition, net of acquired cash	$ 8,800
Business acquisition, measurement period adjustments, increase to goodwill			2,100
Business acquisition, measurement period adjustments, decrease in purchase price due to customary net working capital			600
Business acquisition, measurement period adjustments, increase other current liabilities			100
Business acquisition, measurement period adjustments, decrease in deferred tax liabilities			1,600
Net sales			78,000
Net income			0
Business acquisition, goodwill			106,816
Business acquisition, identified intangibles			160,400
Business acquisition, other net assets			848
Business acquisition, accounts receivables			23,216
Business acquisition, inventory			$ 79,625
Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of outstanding stock acquired		60.00%				60.00%
Total purchase price		$ 30,700
Business acquisition, value of outstanding stock acquired		18,400
Fair value of previously held equity interest		12,300
Business combination, separately recognized transactions, net gains and losses				$ 2,500
Business acquisition, goodwill		16,700
Business acquisition, identified intangibles		7,290
Business acquisition, other net assets		6,700
Business acquisition, cash		3,500
Business acquisition, accounts receivables		2,000
Business acquisition, inventory		5,600
Business acquisition, other assets and liabilities net		$ 4,400

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Business Acquisitions and Investments - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Business Acquisition [Line Items]
Goodwill	$ 197,332	$ 91,080	$ 74,458
Dayton Parts [Member]
Business Acquisition [Line Items]
Accounts receivable	23,216
Inventories	79,625
Prepaids and other current assets	2,302
Property, plant and equipment	29,900
Goodwill	106,816
Identifiable intangible assets	160,400
Operating lease right-of-use assets	21,248
Other assets	848
Accounts payable	(11,970)
Accrued compensation	(2,784)
Other current liabilities	(7,604)
Long-term operating lease liabilities	(18,444)
Deferred tax liabilities	(38,665)
Net cash consideration	$ 344,888

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Business Acquisitions and Investments - Schedule of Valuation of Intangible Assets Acquired and Related Amortization Periods (Detail) - USD ($) $ in Thousands		12 Months Ended
	Jan. 02, 2020	Dec. 25, 2021
Dayton Parts [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets		$ 160,400
Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets	$ 7,290
Customer Relationships [Member] | Dayton Parts [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets		$ 124,100
Amortization Period (in years)		20 years
Customer Relationships [Member] | Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets	$ 4,600
Amortization Period (in years)	15 years
Product Portfolio [Member] | Dayton Parts [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets		$ 25,300
Amortization Period (in years)		20 years
Trade Names [Member] | Dayton Parts [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets		$ 11,000
Amortization Period (in years)		10 years
Trade Names [Member] | Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets	$ 700
Amortization Period (in years)	5 years
Technology [Member] | Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets	$ 1,800
Amortization Period (in years)	8 years
Other [Member] | Power Train Industries, Inc. [Member]
Business Acquisition [Line Items]
Valuation,Intangible assets	$ 190
Amortization Period (in years)	5 years

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Business Acquisitions and Investments - Summary of Unaudited Proforma Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Business Combination [Abstract]
Net sales	$ 1,468,415	$ 1,260,077
Net income	$ 147,090	$ 100,334
Diluted earnings per share	$ 4.60	$ 3.10

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Inventories - Inventories (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Inventory Disclosure [Abstract]
Raw materials	$ 12,746
Bulk product	225,879	$ 136,726
Finished product	287,415	157,484
Packaging materials	5,948	4,509
Total	$ 531,988	$ 298,719

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Property, Plant and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Property, Plant and Equipment [Line Items]
Total	$ 303,561	$ 259,919
Less-accumulated depreciation and amortization	(188,697)	(168,910)
Property, plant and equipment, net	114,864	91,009
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total	58,788	37,676
Machinery, Equipment and Tooling [Member]
Property, Plant and Equipment [Line Items]
Total	146,999	131,853
Furniture, Fixtures and Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total	7,303	5,468
Software and Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total	$ 90,471	$ 84,922

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Property, Plant and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Property Plant And Equipment [Abstract]
Depreciation and amortization expenses	$ 26.3	$ 26.6	$ 25.4

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Leases - Additional Information (Detail) - USD ($) $ in Thousands		12 Months Ended
	Feb. 22, 2022	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Lessee Lease Description [Line Items]
Cash paid for operating leases		$ 9,200	$ 7,700	$ 6,000
Future lease payments for operating leases		$ 72,952
Warehouse and Distribution Services [Member] | Subsequent Event [Member]
Lessee Lease Description [Line Items]
Future lease payments for operating leases	$ 53,000
Operating lease, increase in lease payments period	12 years
Minimum [Member]
Lessee Lease Description [Line Items]
Operating lease remaining lease term		1 year
Maximum [Member]
Lessee Lease Description [Line Items]
Operating lease remaining lease term		10 years

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Leases - Summary of Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Leases [Abstract]
Operating lease expense	$ 9,549	$ 7,732	$ 7,362
Short-term lease expense	3,172	3,647	4,547
Total lease expense	$ 12,721	$ 11,379	$ 11,909

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Leases - Summary of Supplemental Balance Sheet Information Related to Operating Leases (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 59,029	$ 39,002
Other accrued liabilities	10,065	$ 5,470
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]		Liabilities Current
Long-term operating lease liabilities	52,443	$ 37,083
Total operating lease liabilities	$ 62,508	$ 42,553
Weighted average remaining lease term (years)	7 years 6 months 18 days	8 years 11 months 8 days
Weighted average discount rate	3.73%	5.55%

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Leases - Summary of Maturities of Operating Lease Liabilities (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Leases [Abstract]
2022	$ 12,097
2023	10,388
2024	8,933
2025	7,374
2026	7,293
Thereafter	26,867
Total lease payments	72,952
Less: Imputed interest	(10,444)
Present value of lease liabilities	$ 62,508	$ 42,553

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Goodwill and Intangible Assets - Schedule of Goodwill (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Balance at beginning of period	$ 91,080	$ 74,458
Goodwill acquired	108,945	16,622
Measurement period adjustments for Dayton acquisition	(2,130)
Foreign currency translation	(563)
Balance at end of period	$ 197,332	$ 91,080

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Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Finite Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 194,807	$ 34,407
Accumulated Amortization	15,998	9,200
Net Carrying Value	$ 178,809	25,207
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	18 years 7 months 6 days
Gross Carrying Value	$ 149,150	25,050
Accumulated Amortization	12,139	7,141
Net Carrying Value	$ 137,011	17,909
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	10 years
Gross Carrying Value	$ 17,760	6,760
Accumulated Amortization	2,592	1,585
Net Carrying Value	$ 15,168	5,175
Product Portfolio [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	19 years 10 months 24 days
Gross Carrying Value	$ 25,300
Accumulated Amortization	460
Net Carrying Value	$ 24,840
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	6 years 10 months 24 days
Gross Carrying Value	$ 2,167	2,167
Accumulated Amortization	571	323
Net Carrying Value	$ 1,596	1,844
Other [Member]
Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	2 years 8 months 12 days
Gross Carrying Value	$ 430	430
Accumulated Amortization	236	151
Net Carrying Value	$ 194	$ 279

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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense associated with intangible assets	$ 6.5	$ 3.4	$ 2.6

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Goodwill and Intangible Assets - Schedule of Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
2022	$ 11,954
2023	11,954
2024	11,810
2025	11,453
2026	10,418
Thereafter	121,220
Net Carrying Value	$ 178,809	$ 25,207

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Long-Term Debt - Additional Information (Detail) - USD ($)		12 Months Ended
	Aug. 10, 2021	Dec. 25, 2021
Previous Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	$ 100,000,000
Revolving Credit Facility [Member] | Initial [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage	0.15%
Credit facility, interest rate description		Borrowings under the New Facility bear interest at a rate per annum equal to, at the Company’s option, either a LIBOR rate (subject to a 0.00% floor) or a base rate, in each case plus an applicable margin of, initially (i) in the case of LIBOR rate, 1.250% or (ii) in the case of base rate loans, 0.250%. The applicable margin for (i) base rate loans ranges from 0.000% to 1.000% per annum and (ii) for LIBOR loans ranges from 1.000% to 2.000% per annum, in each case, based on the Total Net Leverage Ratio (as defined in the New Facility). The commitment fee is initially equal to 0.150% and thereafter ranges from 0.125% to 0.250% based on the Total Net Leverage Ratio.
Revolving Credit Facility [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	0.00%
Revolving Credit Facility [Member] | LIBOR Rate [Member] | Initial [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	1.25%
Revolving Credit Facility [Member] | Base Rate [Member] | Initial [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	0.25%
Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage	0.25%
Revolving Credit Facility [Member] | Maximum [Member] | LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	2.00%
Revolving Credit Facility [Member] | Maximum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	1.00%
Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage	0.125%
Revolving Credit Facility [Member] | Minimum [Member] | LIBOR Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	1.00%
Revolving Credit Facility [Member] | Minimum [Member] | Base Rate [Member]
Debt Instrument [Line Items]
Credit facility, interest rate	0.00%
Dayton Parts [Member] | New Facility [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	$ 600,000,000
Credit facility, expiration date	Aug. 10, 2026
Credit facility, commitment fee percentage		0.15%
Credit facility, outstanding borrowing interest rate		1.35%
Dayton Parts [Member] | Letter of Credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity	$ 60,000,000

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Related Party Transactions - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 25, 2021 USD ($) Supplier	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)
Related Party Transaction [Line Items]
Cash paid for operating leases	$ 9.2	$ 7.7	$ 6.0
Lease effective date	Jan. 01, 2018
Purchases from companies and from PTI prior to full acquisition	$ 18.9	10.7	23.2
Executive Chairman And Certain Of His Family Members [Member]
Related Party Transaction [Line Items]
Cash paid for operating leases	$ 2.3	$ 1.8	$ 1.6
Joint Venture [Member]
Related Party Transaction [Line Items]
Number of suppliers with company partners Joint Venture | Supplier	1
Minority interests in number of suppliers | Supplier	2
Colmar, PA [Member]
Related Party Transaction [Line Items]
Lease expiration date	Dec. 31, 2022
Lewisberry, PA [Member]
Related Party Transaction [Line Items]
Lease expiration date	Dec. 31, 2027

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Income Tax Contingency [Line Items]
Net unrecognized tax benefits	$ 1,204	$ 1,060	$ 2,301	$ 2,390
Net operating losses	1,892	304
Net operating losses	$ 171,551	$ 133,373	$ 105,828
Federal net operating loss expire period	2035
State net operating loss carryforwards expire period	2037
Federal
Income Tax Contingency [Line Items]
Operating loss carryforwards	$ 1,700
Net operating losses	100
State
Income Tax Contingency [Line Items]
Operating loss carryforwards	200
Capital Loss Carryforward
Income Tax Contingency [Line Items]
Net operating losses	$ 600

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Income Taxes - Components of Income Tax Provision (Benefit) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Current:
Federal	$ 43,374	$ 33,698	$ 19,090
State	5,755	4,276	2,091
Foreign	1,075	491	(194)
Current, Total	50,204	38,465	20,987
Deferred:
Federal	(9,609)	(8,475)	2,084
State	(1,368)	(893)	(280)
Foreign	(993)	(231)	(746)
Deferred, Total	(11,970)	(9,599)	1,058
Total	$ 38,234	$ 28,866	$ 22,045

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Income Taxes - Reconciliation of Income Taxes at Statutory Tax Rate to Company's Effective Tax Rate (Detail)	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Federal taxes at statutory rate	21.00%	21.00%	21.00%
State taxes, net of federal tax benefit	2.10%	2.00%	1.30%
Research and development tax credit	(0.40%)	(0.60%)	(0.50%)
Federal permanent items		(0.20%)	(0.30%)
Effect of foreign operations	(0.20%)	0.10%	(1.10%)
Other		(1.00%)	0.40%
Effective tax rate	22.50%	21.30%	20.80%

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Income Taxes - Change in Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 1,060	$ 2,301	$ 2,390
Reductions due to lapses in statutes of limitations			(200)
Reductions due to tax positions settled		(1,308)
Reductions due to reversals of prior year positions	(30)	(202)	(28)
Additions based on tax positions taken during the current period	174	269	139
Balance at end of year	$ 1,204	$ 1,060	$ 2,301

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Income Taxes - Reconciliation of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 25, 2021	Dec. 26, 2020
Assets:
Inventories	$ 13,689	$ 11,346
Accounts receivable	18,589	16,452
Operating lease liability	14,526	9,352
Accrued expenses	7,515	3,671
Net operating losses	1,892	304
Foreign tax credits	469	631
State tax credits	819	625
Capital loss carryforward	467
Total deferred tax assets	57,966	42,381
Valuation allowance	(1,837)	(1,256)
Net deferred tax assets	56,129	41,125
Liabilities:
Depreciation	14,541	10,586
Goodwill and intangible assets	45,522	12,419
Operating lease right of use asset	13,733	8,560
Other	309	929
Gross deferred tax liabilities	74,105	32,494
Net deferred tax assets		$ 8,631
Net deferred tax (liabilities) assets	$ (17,976)

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Commitments and Contingencies - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 25, 2021	Dec. 28, 2019	Dec. 26, 2020
Commitments And Contingencies Disclosure [Abstract]
Estimated underpayments of duties amount			$ 2,800,000
Payment of underpaid duties and interest	$ 2,800,000
Estimated contingent payments				$ 8,000,000.0
Contingent consideration paid		$ 10,400,000
Maximum additional contingent payments to be made upon full achievement of targets		$ 3,600,000

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Revenue Recognition - Additional Information (Detail) - Customer	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Revenue From Contract With Customer [Line Items]
Number of customers exceeding 10% of net sales	3	3	4
Revenue, performance obligation, description of good or service	We are a supplier of replacement parts and fasteners for passenger cars and light-, medium- and heavy-duty trucks in the automotive aftermarket. We group our products into four major classes: powertrain, automotive body, chassis, and hardware.
Maximum credit terms allow to customers	1 year
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Three Customer [Member]
Revenue From Contract With Customer [Line Items]
Total percentage of sales to customers exceeding 10% of sales	54.00%	56.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Four Customer [Member]
Revenue From Contract With Customer [Line Items]
Total percentage of sales to customers exceeding 10% of sales			66.00%
Maximum [Member]
Revenue From Contract With Customer [Line Items]
Customer purchase order duration of contract	1 year
Customer pays for good or service future duration	1 year
Expense costs to obtain as incurred, expected period of benefit, amortization period	1 year

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Revenue Recognition - Additional Information 1 (Detail)	Dec. 25, 2021
Maximum [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-12-26
Revenue From Contract With Customer [Line Items]
Revenue, remaining performance obligations for contract, initial term	1 year

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Revenue Recognition - Summary of Disaggregated Net Sales (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Disaggregation Of Revenue [Line Items]
Net Sales	$ 1,345,249	$ 1,092,748	$ 991,329
U.S. Customers [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	1,269,050	1,031,183	929,908
Non-U.S. Customers [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	76,199	61,565	61,421
Powertrain [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	539,235	442,221	395,975
Chassis [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	458,986	324,399	297,350
Automotive Body [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	288,599	266,699	251,506
Hardware [Member]
Disaggregation Of Revenue [Line Items]
Net Sales	$ 58,429	$ 59,429	$ 46,498

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Capital Stock - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	May 31, 2017	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019	Dec. 26, 2015	Dec. 27, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding shares owned by controlling family		17.00%	18.00%
Shares authorized of undesignated capital stock for future issuance		50,000,000
Authorized number of common stock shares for grant		1,200,000
Date of plan approval		May 16, 2018
Maximum grant period from date of plan approval		10 years
Shares available for grant under the plan		727,834
Weighted-average grant-date fair value		$ 101.36	$ 63.25	$ 81.84
Compensation cost related to stock options		$ 1,300,000	$ 1,000,000.0	$ 700,000
Cash received from stock option exercises under the plan		$ 2,455,000	1,184,000	123,000
Common stock, shares held by 401(K) plan		183,916
Total 401(K) expense		$ 6,300,000	$ 5,700,000	$ 4,500,000
Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchase program shares authorized to be repurchased					$ 500,000,000	$ 10,000,000
Share repurchase program shares authorized to be repurchased expiration date		Dec. 31, 2022
Authorized date of repurchase of outstanding common stock		Dec. 12, 2013
Shares available for repurchase under share repurchase program		145,600,000
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized number of common stock shares for grant	1,000,000
Rate of discount on shares of common stock available for sale to eligible employees	15.00%
Number of shares purchased		40,303	79,089	21,200
Compensation cost		$ 900,000	$ 3,300,000	$ 300,000
Performance-based and Time-based RSAs and RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost related to restricted stock awards and restricted stock units		6,100,000	3,200,000	2,100,000
Capitalized compensation cost		$ 0	$ 0	$ 0
Performance-based RSAs and RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value		$ 131.02	$ 65.09	$ 81.44
RSAs and RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested stock options		$ 9,700,000
Unrecognized compensation cost related to unvested stock options, weighted-average period		2 years 3 months 18 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Capitalized compensation cost		$ 0	$ 0	$ 0
Weighted-average grant-date fair value		$ 31.68	$ 17.84	$ 24.32
Unrecognized compensation cost related to unvested stock options		$ 1,700,000
Unrecognized compensation cost related to unvested stock options, weighted-average period		2 years 3 months 18 days

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Capital Stock - Schedule of Weighted Average Valuation Assumptions Used to Calculate Fair Value of Stock Granted (Detail) - $ / shares	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant-date fair value	$ 101.36	$ 63.25	$ 81.84
Performance Based RSAs and Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share price	$ 101.45	$ 61.68	$ 82.03
Expected dividend yield	0.00%	0.00%	0.00%
Expected stock price volatility	38.90%	31.50%	27.70%
Risk-free interest rate	0.20%	0.90%	2.50%
Expected life	2 years 9 months 18 days	2 years 9 months 18 days	2 years 9 months 18 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield	0.00%	0.00%	0.00%
Expected stock price volatility	34.00%	29.00%	28.00%
Risk-free interest rate	0.70%	0.80%	2.30%
Expected life	5 years 3 months 18 days	5 years 3 months 18 days	5 years 4 months 24 days
Weighted-average grant-date fair value	$ 31.68	$ 17.84	$ 24.32

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Capital Stock - Summary of RSA and RSU Activity (Detail) - $ / shares	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Beginning Balance, Shares	217,735	177,491	170,737
Granted, Shares	81,694	83,875	92,396
Vested, Shares	(45,970)	(27,477)	(41,586)
Canceled, Shares	(46,782)	(16,154)	(44,056)
Ending Balance, Shares	206,677	217,735	177,491
Beginning Balance, Weighted Average Fair Value	$ 72.77	$ 76.70	$ 63.94
Granted, Weighted Average Fair Value	106.23	64.66	81.92
Vested, Weighted Average Fair Value	70.62	71.25	55.72
Cancelled, Weighted Average Fair Value	74.85	76.44	58.03
Ending Balance, Weighted Average Fair Value	$ 85.97	$ 72.77	$ 76.70

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Capital Stock - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning Balance, Shares	250,779	181,712	188,469
Granted, Shares	59,578	109,352	44,025
Exercised, Shares	(67,504)	(31,521)	(38,009)
Canceled, Shares	(9,457)	(8,764)	(12,773)
Ending Balance, Shares	233,396	250,779	181,712
Exercisable at December 25, 2021	70,488
Beginning Balance, Weighted Average Price	$ 70.21	$ 70.78	$ 66.14
Granted, Weighted Average Price	101.36	63.25	81.84
Exercised, Weighted Average Price	70.04	50.77	58.96
Cancelled, Weighted Average Price	79.02	65.24	75.52
Ending Balance, Weighted Average Price	77.85	70.21	70.78
Exercisable at December 25, 2021, Option Price per Share	$ 73.40
Ending Balance, Weighted Average Remaining Terms (years)	5 years 6 months
Exercisable at December 25, 2021, Weighted Average Remaining Term (years)	4 years 1 month 6 days
Ending Balance, Aggregate Intrinsic Value	$ 6,664
Exercisable at December 25, 2021, Aggregate Intrinsic Value	$ 2,328
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable at December 25, 2021, Option Price per Share	$ 61.68
Beginning Balance, Option Price per Share	41.59	41.59	7.74
Option price per share, Granted	95.98	61.68	73.72
Option Price per Share, Exercised	41.59	41.59	7.74
Option Price per Share, Cancelled	61.68	61.68	41.59
Ending Balance, Option Price per Share	61.68	41.59	41.59
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable at December 25, 2021, Option Price per Share	84.93
Beginning Balance, Option Price per Share	84.93	82.94	82.94
Option price per share, Granted	103.61	83.06	84.93
Option Price per Share, Exercised	82.94	82.94	78.76
Option Price per Share, Cancelled	101.45	74.21	82.94
Ending Balance, Option Price per Share	$ 103.61	$ 84.93	$ 82.94

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Capital Stock - Summary of Shares Repurchase and Cancellation (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Common Stock Repurchases [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased and canceled	11,452	23,360	22,380
Total cost of shares repurchased and canceled (in thousands)	$ 1,172	$ 1,895	$ 1,953
Average price per share	$ 102.38	$ 81.12	$ 87.26
Share Repurchase Program [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares repurchased and canceled	605,628	439,275	499,564
Total cost of shares repurchased and canceled (in thousands)	$ 61,583	$ 36,781	$ 39,387
Average price per share	$ 101.68	$ 83.73	$ 78.84

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Earnings Per Share - Additional Information (Detail) - shares	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Earnings Per Share [Abstract]
Stock-based awards considered as anti-dilutive	14,250	35,975	92,000

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Earnings Per Share - Schedule of Computation of Basic Earnings per Share and Diluted Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Numerator:
Net income	$ 131,532	$ 106,870	$ 83,762
Denominator:
Weighted average basic shares outstanding	31,810	32,280	32,606
Effect of compensation awards	151	93	82
Weighted average diluted shares outstanding	31,961	32,373	32,688
Earnings Per Share:
Basic	$ 4.13	$ 3.31	$ 2.57
Diluted	$ 4.12	$ 3.30	$ 2.56

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Business Segments - Additional Information (Detail)	12 Months Ended
	Dec. 25, 2021 USD ($) Segment	Dec. 26, 2020 USD ($)	Dec. 28, 2019 USD ($)
Product Information [Line Items]
Number of reportable operating segment | Segment	1
Property, plant and equipment, net	$ 114,864,000	$ 91,009,000
Non-U.S. Customers [Member]
Product Information [Line Items]
Net sales outside of the U.S.	76,200,000	61,600,000	$ 61,400,000
Property, plant and equipment, net	$ 1,000,000.0	$ 0

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Schedule II - Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts
Balance, beginning of period	$ 1,260
Balance, beginning of period	1,260	$ 957	$ 982
Provision	177	315	39
Charge-offs	(111)	(111)	(64)
Acquisitions and other		99
Balance, end of period	1,326	1,260
Balance, end of period		1,260	957
Allowance for Customer Credits [Member]
Valuation and Qualifying Accounts
Balance, beginning of period	155,751	105,950	90,596
Provision	334,615	308,783	274,243
Charge-offs	(302,286)	(258,982)	(258,889)
Balance, end of period	$ 188,080	$ 155,751	$ 105,950