10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended September 30, 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 000-14656

REPLIGEN CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Delaware	04-2729386
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
41 Seyon Street, Bldg. 1, Suite 100 Waltham, MA	02453
(Address of Principal Executive Offices)	(Zip Code)

(781) 250-0111

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, par value $0.01 per share	RGEN	The Nasdaq Global Select Market

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	

1

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 is a shell company (as defined in Rule 12b-2 of the Exchange Act.): Yes  No 

The number of shares outstanding of the registrant’s common stock on October 25, 2021 was 55,288,528.

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Table of Contents

		PAGE
PART I -	FINANCIAL INFORMATION
Item 1.	Financial Statements (interim periods unaudited)
	Consolidated Balance Sheets as of September 30, 2021 and December 31, 2020		4
	Consolidated Statements of Comprehensive Income for the Three and Nine Months Ended September 30, 2021 and 2020		5
	Consolidated Statements of Stockholders’ Equity for the Three and Nine Months Ended September 30, 2021 and 2020		6
	Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2021 and 2020		7
	Notes to Unaudited Consolidated Financial Statements		8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		28
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		38
Item 4.	Controls and Procedures		38
PART II -	OTHER INFORMATION
Item 1.	Legal Proceedings		40
Item 1A.	Risk Factors		40
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		40
Item 3.	Defaults Upon Senior Securities		40
Item 4.	Mine Safety Disclosures		40
Item 5.	Other Information		40
Item 6.	Exhibits		41
Signatures				42

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PART I – FINANCIAL INFORMATION

ITEM 1. Financial Statements

REPLIGEN CORPORATION

CONSOLIDATED BALANCE SHEETS

(Unaudited, amounts in thousands, except share data)

	September 30,			December 31,
	2021			2020
ASSETS
Current assets:
Cash and cash equivalents	$	621,098		$	717,292
Accounts receivable, net of reserves of $1,214 and $762 at September 30, 2021      and December 31, 2020, respectively		122,048			71,389
Inventories, net		156,163			95,025
Prepaid expenses and other current assets		11,545			18,676
Total current assets		910,854			902,382
Noncurrent assets:
Property, plant and equipment, net		99,652			66,870
Intangible assets, net		340,163			287,100
Goodwill		833,559			618,305
Deferred tax assets		1,542			2,481
Operating lease right of use assets		55,007			25,176
Other noncurrent assets		620			573
Total noncurrent assets		1,330,543			1,000,505
Total assets	$	2,241,397		$	1,902,887
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	28,194		$	16,880
Operating lease liability		5,528			5,254
Accrued liabilities		63,394			53,085
Convertible senior notes, current portion, net		252,323			243,737
Total current liabilities		349,439			318,956
Noncurrent liabilities:
Deferred tax liabilities		39,125			27,032
Noncurrent operating lease liability		55,909			26,425
Noncurrent contingent consideration		79,962			—
Other noncurrent liabilities		1,697			1,324
Total noncurrent liabilities		176,693			54,781
Total liabilities		526,132			373,737
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized, no shares issued or outstanding		—			—
Common stock, $0.01 par value; 80,000,000 shares authorized; 55,283,988 shares at      September 30, 2021 and 54,760,837 shares at December 31, 2020 issued and      outstanding		553			548
Additional paid-in capital		1,559,681			1,460,748
Accumulated other comprehensive (loss) income		(9,919	)		2,085
Retained earnings		164,950			65,769
Total stockholders’ equity		1,715,265			1,529,150
Total liabilities and stockholders’ equity	$	2,241,397		$	1,902,887

The accompanying notes are an integral part of these consolidated financial statements.

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REPLIGEN CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited, amounts in thousands, except per share data)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
Revenue:
Products	$	178,177		$	94,029		$	483,834		$	257,521
Royalty and other revenue		39			31			179			91
Total revenue		178,216			94,060			484,013			257,612
Costs and operating expenses:
Cost of product revenue		75,495			39,626			197,232			108,471
Research and development		9,154			4,422			25,155			13,460
Selling, general and administrative		48,373			29,051			131,809			83,277
Total costs and operating expenses		133,022			73,099			354,196			205,208
Income from operations		45,194			20,961			129,817			52,404
Other income (expenses):
Investment income		44			82			137			1,699
Interest expense		(3,220	)		(3,052	)		(9,470	)		(9,032	)
Other expenses		(786	)		(248	)		(1,789	)		(632	)
Other expenses, net		(3,962	)		(3,218	)		(11,122	)		(7,965	)
Income before income taxes		41,232			17,743			118,695			44,439
Income tax provision		7,734			3,191			19,514			4,211
Net income	$	33,498		$	14,552		$	99,181		$	40,228
Earnings per share:
Basic	$	0.61		$	0.28		$	1.81		$	0.77
Diluted	$	0.58		$	0.27		$	1.74		$	0.75
Weighted average common shares outstanding:
Basic		55,015			52,545			54,918			52,341
Diluted		57,368			53,469			57,072			53,300
Net income	$	33,498		$	14,552		$	99,181		$	40,228
Other comprehensive income (loss):
Foreign currency translation adjustment		(5,550	)		4,390			(12,004	)		5,304
Comprehensive income	$	27,948		$	18,942		$	87,177		$	45,532

The accompanying notes are an integral part of these consolidated financial statements.

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REPLIGEN CORPORATION

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(Unaudited, amounts in thousands, except share data)

	Nine Months Ended September 30, 2021
	Common Stock
	Number of Shares			Par Value			Additional Paid-In Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings		Total Stockholders' Equity
Balance at December 31, 2020		54,760,837		$	548		$	1,460,748		$	2,085		$	65,769	$	1,529,150
Net income		—			—			—			—			99,181		99,181
Issuance of common stock for debt conversion		7			0			2			—			—		2
Exercise of stock options and vesting of stock    units		257,387			2			1,989			—			—		1,991
Issuance of common stock pursuant to the acquisition     of Avitide Inc.		271,096			3			77,573			—			—		77,576
Tax withholding on vesting of restricted stock units		(5,339	)		(0	)		(1,252	)		—			—		(1,252	)
Stock-based compensation expense		—			—			20,476			—			—		20,476
True up of costs related to the December 2020    issuance of common stock		—			—			145			—			—		145
Translation adjustment		—			—			—			(12,004	)		—		(12,004	)
Balance at September 30, 2021		55,283,988		$	553		$	1,559,681		$	(9,919	)	$	164,950	$	1,715,265

	Three Months Ended September 30, 2021
	Common Stock
	Number of Shares			Par Value			Additional Paid-In Capital			Accumulated Other Comprehensive Loss			Retained Earnings		Total Stockholders' Equity
Balance at June 30, 2021		54,969,481		$	550		$	1,475,436		$	(4,369	)	$	131,452	$	1,603,069
Net income		—			—			—			—			33,498		33,498
Issuance of common stock for debt conversion		4			0			1			—			—		1
Exercise of stock options and vesting of stock    units		48,746			0			1,131			—			—		1,131
Issuance of common stock pursuant to the acquisition    of Avitide Inc.		271,096			3			77,573			—			—		77,576
Tax withholding on vesting of restricted stock units		(5,339	)		(0	)		(1,252	)		—			—		(1,252	)
Stock-based compensation expense		—			—			6,792			—			—		6,792
Translation adjustment		—			—			—			(5,550	)		—		(5,550	)
Balance at September 30, 2021		55,283,988		$	553		$	1,559,681		$	(9,919	)	$	164,950	$	1,715,265

	Nine Months Ended September 30, 2020
	Common Stock
	Number of Shares		Par Value		Additional Paid-In Capital		Accumulated Other Comprehensive Loss			Retained Earnings		Total Stockholders' Equity
Balance at December 31, 2019		52,078,258	$	521	$	1,068,431	$	(15,027	)	$	5,843	$	1,059,768
Net income		—		—		—		—			40,228		40,228
Exercise of stock options and vesting of stock    units		528,442		5		7,073		—			—		7,078
Stock-based compensation expense		—		—		12,492		—			—		12,492
Translation adjustment		—		—		—		5,304			—		5,304
Balance as of September 30, 2020		52,606,700	$	526	$	1,087,996	$	(9,723	)	$	46,071	$	1,124,870

	Three Months Ended September 30, 2020
	Common Stock
	Number of Shares		Par Value		Additional Paid-In Capital		Accumulated Other Comprehensive Loss			Retained Earnings		Total Stockholders' Equity
Balance at June 30, 2020		52,494,884	$	525	$	1,082,096	$	(14,113	)	$	31,519	$	1,100,027
Net income		—		—		—		—			14,552		14,552
Exercise of stock options and vesting of stock    units		111,816		1		1,675		—			—		1,676
Stock-based compensation expense		—		—		4,225		—			—		4,225
Translation adjustment		—		—		—		4,390			—		4,390
Balance as of September 30, 2020		52,606,700	$	526	$	1,087,996	$	(9,723	)	$	46,071	$	1,124,870

The accompanying notes are an integral part of these consolidated financial statements.

6

REPLIGEN CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited, amounts in thousands)

	Nine Months Ended September 30,
	2021			2020
Cash flows from operating activities:
Net income	$	99,181		$	40,228
Adjustments to reconcile net income to net cash provided by operating activities:
Inventory step-up amortization		1,868			—
Depreciation and amortization		27,430			19,581
Amortization of debt discount and issuance costs		8,592			8,175
Stock-based compensation expense		20,476			12,492
Deferred income taxes, net		6,071			72
Other		677			228
Changes in operating assets and liabilities, excluding impact of acquisitions:
Accounts receivable		(51,927	)		(11,358	)
Unbilled receivables		(23	)		456
Inventories		(61,598	)		(22,767	)
Prepaid expenses and other assets		471			(2,908	)
Other assets		751			(260	)
Accounts payable		8,968			3,317
Accrued expenses		10,051			(2,712	)
Long-term liabilities		(1,592	)		3,210
Total cash provided by operating activities		69,396			47,754
Cash flows from investing activities:
Acquisitions, net of cash acquired		(120,979	)		(28,445	)
Additions to capitalized software costs		(2,945	)		(3,585	)
Purchases of property, plant and equipment		(34,969	)		(11,067	)
Total cash used in investing activities		(158,893	)		(43,097	)
Cash flows from financing activities:
Proceeds from exercise of stock options		1,991			7,088
Payment of tax withholding obligation on vesting of restricted stock		(1,252	)		(10	)
Repayment of convertible senior notes		(9	)		—
Total cash provided by financing activities		730			7,078
Effect of exchange rate changes on cash, cash equivalents and restricted cash		(7,427	)		4,160
Net (decrease) increase in cash, cash equivalents and restricted cash		(96,194	)		15,895
Cash, cash equivalents and restricted cash, beginning of period		717,292			537,407
Cash and cash equivalents, end of period	$	621,098		$	553,302
Supplemental disclosure of non-cash investing and financing activities:
Assets acquired under operating leases	$	32,518		$	1,456
Fair value of 271,096 shares of common stock issued for acquisition of      Avitide, Inc.	$	77,576		$	—
Fair value of earnouts related to acquisition of Avitide, Inc.	$	79,962		$	—

The accompanying notes are an integral part of these consolidated financial statements.

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REPLIGEN CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

1.Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements included herein have been prepared by Repligen Corporation (the “Company”, “Repligen”, “our” or “we”) in accordance with generally accepted accounting principles in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”), for Quarterly Reports on Form 10-Q and Article 10 of Regulation S-X and do not include all of the information and footnote disclosures required by GAAP. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, which was filed with the SEC on February 24, 2021 (“Form 10-K”).

The preparation of financial statements in conformity with 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. The business and economic uncertainty resulting from the novel coronavirus (“COVID-19”) pandemic has made such estimates more difficult to calculate. Accordingly, actual results could differ from those estimates.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Repligen Sweden AB, Repligen GmbH, Spectrum® LifeSciences LLC and its subsidiaries (“Spectrum”), C Technologies, Inc. (“C Technologies”), Non-Metallic Solutions, Inc. (“NMS”), ARTeSYN Biosolutions Holdings Ireland Limited (“ARTeSYN”), Polymem S.A. (“Polymem”), Avitide, Inc. (“Avitide”) and Repligen Singapore Pte. Ltd. All significant intercompany accounts and transactions have been eliminated in consolidation.

The Company made no material changes in the application of its significant accounting policies that were disclosed in its Form 10-K. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting of only normal, recurring adjustments necessary for a fair presentation of the financial position, results of operations and cash flows. The results of operations for the interim periods presented are not necessarily indicative of results to be expected for the entire year. Certain prior year balances have been reclassified to conform to current year presentation.

Recent Accounting Standards Updates

We consider the applicability and impact of all Accounting Standards Updates (“ASUs” or “ASU”) on the Company’s consolidated financial statements. Updates not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company’s consolidated financial position or results of operations. Recently issued ASUs that we feel may be applicable to the Company are as follows:

Recently Issued Accounting Standard Updates – Not Yet Adopted

In August 2020, the Financial Accounting Standards Board (“FASB”) issued ASU 2020-06, “Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40).” ASU 2020-06 simplifies the accounting for convertible debt instruments and convertible preferred stock by reducing the number of accounting models and the number of embedded conversion features that could be recognized separately from the primary contract. ASU 2020-06 also enhances transparency and improves disclosures for convertible instruments and earnings per share guidance. ASU 2020-06 is effective for annual reporting periods beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. This update permits the use of either the modified retrospective or fully retrospective method of transition. The Company is currently evaluating the impact of the adoption of ASU 2020-06 on the Company's consolidated financial statements. 

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2.Fair Value Measurements

The Company uses various valuation approaches in determining the fair value of its assets and liabilities. The Company employs a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. The fair value hierarchy is broken down into three levels based on the source of inputs as follows:

Level 1 –	Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.
Level 2 –	Valuations based on quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active and models for which all significant inputs are observable, either directly or indirectly.
Level 3 –	Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

The availability of observable inputs can vary among the various types of financial assets and liabilities. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for financial statement disclosure purposes, the level in the fair value hierarchy within which the fair value measurement is categorized is based on the lowest level input that is significant to the overall fair value measurement.

Fair Value Measured on a Recurring Basis

Financial assets and financial liabilities measured at fair value on a recurring basis consist of the following as of September 30, 2021 and December 31, 2020:

	As of September 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	448,908	$	—	$	—	$	448,908
Liabilities:
Contingent consideration - earnout obligation	$	—	$	—	$	79,962	$	79,962

	As of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	549,030	$	—	$	—	$	549,030

Cash and cash equivalents

As of September 30, 2021 and December 31, 2020, cash and cash equivalents on the Company's consolidated balance sheets included $448.9 million and $549.0 million, respectively, in money market accounts. These funds are valued on a recurring basis using Level 1 inputs.

Contingent Consideration – Earnout

On September 20, 2021, the Company completed the acquisition of Avitide (the "Avitide Acquisition"), a privately-held affinity ligand discovery and development company headquartered in Lebanon, New Hampshire. The transaction consisted of upfront payments of $150.0 million and up to an additional $125.0 million (undiscounted) in contingent consideration earnout payments made equally in cash and the Company's common stock over a three-year performance period beginning January 1, 2022 and ending December 31, 2024. Refer to Note 3, "Acquisitions" below for additional information.

9

A reconciliation of the change in the fair value of contingent consideration - earnout is included in the following table (amounts in thousands):

Balance as of December 31, 2020	$	—
Acquisition date fair value of contingent consideration - earnout		79,962
Change in fair value		—
Balance as of September 30, 2021	$	79,962

The recurring Level 3 fair value measurement of our contingent consideration earnout that we expect to be required to settle include the following significant unobservable inputs:

Contingent Consideration Earnout	Fair Value as of September 20, 2021 (amounts in thousands)		Valuation Technique	Unobservable Input	Range	Weighted Average(1)
				Probability of
Commercialization-based			Monte Carlo	Success	100%	100%
payments	$	28,553	Simulation	Earnout Discount Rate	1.4%-2.6%	2%
				Volatility	32.8%	32.8%
Revenue and Volume-			Monte Carlo	Revenue & Volume
based payments	$	51,409	Simulation	Discount Rate	9.4%	9.4%
				Earnout Discount Rate	1.4%-2.6%	2%

(1)Unobservable inputs were weighted by the relative fair value of the contingent consideration liability.

The Company estimates the fair value of the contingent consideration earnouts at each subsequent reporting period using a Monte Carlo simulation. Changes in the projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future.

There were no changes in revenue projections during the period from September 20, 2021, the date of the Avitide Acquisition, and September 30, 2021 that would cause a material change in amounts reported as of September 30, 2021.

Fair Value Measured on a Nonrecurring Basis

During the nine months ended September 30, 2021, there were no re-measurements to fair value of financial assets and liabilities that are measured at fair value on a nonrecurring basis.

Convertible Senior Notes

In July 2019, the Company issued $287.5 million aggregate principal amount of the Company’s 0.375% convertible senior notes due July 15, 2024 (the “2019 Notes”). Interest is payable semi-annually in arrears on January 15 and July 15 of each year. The 2019 Notes will mature on July 15, 2024, unless earlier converted or repurchased in accordance with their terms. At September 30, 2021 and December 31, 2020, the carrying value of the 2019 Notes was $252.3 million and $243.7 million, respectively, net of unamortized discount, and the fair value of the 2019 Notes was $732.9 million and $501.0 million, respectively. The fair value of the 2019 Notes is a Level 1 valuation and was determined based on the most recent trade activity of the 2019 Notes as of September 30, 2021. The 2019 Notes are discussed in more detail in Note 12, “Convertible senior notes” to Part II, Item 8, “Financial Statements and Supplementary Data” to our 2020 Annual Report on Form 10-K (“Form 10-K"), which was filed with the SEC on February 24, 2021.

3.Acquisitions

2021 Acquisitions

Avitide, Inc.

10

On September 16, 2021, the Company entered into an Agreement and Plan of Merger and Reorganization (“Merger Agreement”) with Avalon Merger Sub, Inc., a Delaware corporation and a wholly owned direct subsidiary of the Company (“First Merger Sub”), Avalon Merger Sub LLC, a Delaware limited liability company and a wholly owned direct subsidiary of the Company (“Second Merger Sub” and together with First Merger Sub, the “Merger Subs”), Avitide, Inc., a Delaware corporation, and Shareholder Representative Services LLC, a Colorado limited liability company, solely in its capacity as the representative, agent and attorney-in-fact of Avitide's securityholders (the “Securityholder Representative”) to purchase Avitide. The transaction closed on September 20, 2021 and on the terms set forth in the Merger Agreement.

Avitide, which is headquartered in Lebanon, New Hampshire, offers diverse libraries and leading technology in affinity ligand discovery and development resulting in best-in-class ligand discovery and development lead-times. The acquisition gives the Company a new platform for affinity resin development, including gene therapy, and advances and expands the Company’s proteins and chromatography franchise to address the unique purification needs of gene therapies and other emerging modalities.

Consideration Transferred

The Avitide Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations” and engaged a third-party valuation firm to assist with the valuation of the business acquired. Under the terms of the Merger Agreement, all outstanding shares of capital stock of Avitide were cancelled and converted into the right to receive merger consideration with a value totaling up to $275.0 million, which consisted of upfront payments in aggregate of $150.0 million ($149.4 million, net of cash acquired) and up to an additional $125.0 million (undiscounted) in contingent consideration earnout payments if certain performance targets are achieved. Total consideration paid also included $0.8 million deposited into an escrow account against which the Company may make claims for indemnification. The Avitide Acquisition was funded through payment of $75.0 million in cash, the issuance of 271,096 unregistered shares of the Company’s common stock totaling $77.6 million and contingent consideration with fair value of approximately $80.0 million. Under the acquisition method of accounting, the assets acquired and liabilities assumed of Avitide were recorded as of the acquisition date, at their respective fair values, and consolidated with those of the Company. The fair value of the net liabilities assumed is estimated to be $5.2 million, the fair value of the intangible assets acquired is estimated to be $44.3 million, and the residual goodwill is estimated to be $193.5 million. The estimated consideration and preliminary purchase price information has been prepared using a preliminary valuation. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $0.6 million of transaction and integration costs associated with the Avitide Acquisition from the date of acquisition to September 30, 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

The preparation of the valuation required the use of significant assumptions and estimates. Critical estimates included, but were not limited to, future expected cash flows, including projected revenues and expenses, and the applicable discount rates. These estimates were based on assumptions that the Company believes to be reasonable. However, actual results may differ from these estimates.

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	75,004
Equity consideration		77,576
Contingent consideration - earnout		79,962
Fair value of net assets acquired	$	232,542

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. The fair value of the contingent consideration – earnout was measured using a Monte Carlo simulation. The purchase accounting for this acquisition is not finalized. As additional information becomes available, the Company may further revise its preliminary purchase price allocation, including the fair value of the contingent consideration - earnout during the remainder of the measurement period. Any such revisions or changes may have a material impact on our accounting treatment of the Avitide Acquisition. The final allocation may include changes to: (1)

11

deferred revenue; (2) inventory; (3) deferred tax liabilities, net; (4) allocations to intangible assets such as tradenames, developed technology and customer relationships as well as goodwill; (5) final consideration paid related to working capital adjustments; (6) noncurrent contingent consideration; and (7) other assets and liabilities.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	572
Accounts receivable		228
Inventory		400
Prepaid expenses and other current assets		114
Property and equipment		1,862
Operating lease right of use asset		2,459
Customer relationships		23,310
Developed technology		19,610
Trademark and tradename		1,150
Non-competition agreements		200
Goodwill		193,463
Accounts payable		(215	)
Accrued liabilities		(2,183	)
Operating lease liability		(782	)
Operating lease liability, long-term		(1,606	)
Long term deferred tax liability		(5,982	)
Other liabilities		(58	)
Fair value of net assets acquired	$	232,542

Acquired Goodwill

The goodwill of $193.5 million represents future economic benefits expected to arise from anticipated synergies from the integration of Avitide. These synergies include certain cost savings, operating efficiencies and other strategic benefits projected to be achieved as a result of the Avitide Acquisition. Substantially all of the goodwill recorded is expected to be nondeductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the Avitide Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	13 years	$	23,310
Developed technology	15 years		19,610
Trademark and tradename	18 years		1,150
Non-competition agreements	3 years		200
		$	44,270

Polymem S.A.

On June 22, 2021, the Company entered into a Stock Purchase Agreement with Polymem S.A. (“Polymem”), a company organized under the laws of France, and Jean-Michel Espenan and Franc Saux, acting together jointly and severally as the representatives of the sellers for approximately $47.0 million. The transaction closed on July 1, 2021 (the “Polymem Acquisition.”).

Polymem, which is headquartered in, Toulouse, France, is a manufacturer of hollow fiber membranes, membrane modules and systems for industrial and bioprocessing applications. Polymem products will complement and expand the Company’s portfolio of hollow fiber systems and consumables. The acquisition substantially increases Repligen’s membrane and module

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manufacturing capacity and establishes a world-class center of excellence in Europe to address the accelerating global demand for these innovative products.

Consideration Transferred

The Company accounted for the Polymem Acquisition as a purchase of a business under ASC 805, “Business Combinations” and engaged a third-party valuation firm to assist with the valuation of the business acquired. Payment for the transaction was denominated in Euros but is reflected here in U.S. dollars for presentation purposes based on an exchange rate of 0.8437 as of July 1, 2021, the date of acquisition. Total consideration paid was approximately $47.0 million, which included approximately $4.3 million deposited into an escrow account against which the Company may make claims for indemnification. The fair value of the net assumed liabilities is approximately $2.2 million, the fair value of the intangible assets acquired is approximately $25.7 million, and the residual goodwill is approximately $23.5 million. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $1.9 million of transaction and integration costs associated with the Polymem Acquisition from the date of acquisition to September 30, 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. As additional information becomes available, the Company may further revise its preliminary purchase price allocation during the remainder of the measurement period (which will not exceed 12 months from July 1, 2021). Any such revisions or changes may have a material impact on our accounting treatment of the Polymem Acquisition.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	353
Net working capital (excluding cash and inventory      step-up)		375
Inventory step-up		543
Operating lease right of use assets		1,424
Property and equipment		3,145
Other assets		41
Customer relationships		17,234
Developed technology		7,545
Trademark and tradenames		557
Non-compete agreements		344
Goodwill		23,453
Operating lease liability		(1,253	)
Long term deferred tax liability		(6,646	)
Other long-term liabilities		(142	)
Fair value of net assets acquired	$	46,973

The preliminary purchase price allocation is subject to adjustment as purchase accounting is finalized. The final purchase price allocation will be determined upon completion of final valuation analysis and the fair value allocation of assets acquired and liabilities assumed could differ materially from the preliminary valuation analysis. The final allocation may include changes to: (1) deferred tax liabilities; (2) allocations to intangible assets such as tradenames, developed technology an customer relationships as well as goodwill; (3) final consideration related to working capital adjustments; and (4) other assets and liabilities

Acquired Goodwill

The goodwill of approximately $23.5 million represents future economic benefits expected to arise from anticipated synergies from the integration of Polymem. These synergies include certain cost savings, operating efficiencies and other strategic

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benefits projected to be achieved as a result of the Polymem Acquisition. Substantially all of the goodwill recorded is expected to be nondeductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the Polymem Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	17,234
Developed technology	13 years		7,545
Trademark and tradename	14 years		557
Non-competition agreements	5 years		344
		$	25,680

2020 Acquisitions

ARTeSYN Biosolutions Holdings Ireland Limited

On October 27, 2020, the Company entered into an Equity and Asset Purchase Agreement with ARTeSYN, a company organized under the laws of Ireland, Third Creek Holdings LLC, a Nevada limited liability company (“Third Creek”), Alphinity, LLC, a Nevada limited liability company (“Alphinity”, and together with Third Creek the “ARTeSYN Sellers”), and Michael Gagne, solely in his capacity as the representative of the ARTeSYN Sellers, pursuant to which the Company acquired (i) all of the outstanding equity securities of ARTeSYN and (ii) certain assets from Alphinity related to the business of ARTeSYN (collectively, the “ARTeSYN Acquisition”) for approximately $200 million, comprised of approximately $130 million in cash to the ARTeSYN Sellers and approximately $70 million in the Company’s common stock to Third Creek. The transaction closed on December 3, 2020.

ARTeSYN is headquartered in Waterford, Ireland and conducts its operations in Ireland, the United States and Estonia. Its suite of single-use solutions has been created with the goal of enabling “abundance in medicine” by allowing greater efficiency in biologics manufacturing. The ARTeSYN team has created a number of solutions targeting the single-use space from single-use valves with fully disposable valve liners, XO® skeletal supports, a hybrid small parts offering for de-bottlenecking traditional facilities, and fully automated SU process systems that have quickly become leading solutions in the bioprocessing industry. ARTeSYN has established downstream processing leadership with a suite of state of the art single-use systems for chromatography, filtration, continuous manufacturing and media/buffer prep workflows. In addition, the Company has integrated unique flow path assemblies utilizing the Company’s silicone extrusion and molding technology, to deliver highly differentiated, low hold-up volume systems that minimize product loss during processing. The ARTeSYN portfolio expands on the market success of the Company’s hollow fiber systems and complements its chromatography and TFF filtration product lines.

Consideration Transferred

The ARTeSYN Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations”. The ARTeSYN Acquisition was funded through payment of $130.7 million in cash, as well as issuance of 372,990 unregistered shares of the Company’s common stock totaling $69.4 million, contingent consideration of approximately $1.5 million, and settlement of preexisting invoices with the Company of approximately $2.3 million, for a total purchase price of $204.0 million. Under the acquisition method of accounting, the assets acquired and liabilities assumed of ARTeSYN were recorded as of the acquisition date, at their respective fair values, and consolidated with those of the Company. The fair value of the net tangible assets acquired is estimated to be $8.0 million, the fair value of the intangible assets acquired is estimated to be $67.4 million, and the residual goodwill is estimated to be $128.6 million. The estimated consideration and purchase price information was prepared using a valuation. Payment of the final consideration for working capital was made in April 2021.

The preparation of the valuation required the use of significant assumptions and estimates. Critical estimates included, but were not limited to, future expected cash flows, including projected revenues and expenses, and the applicable discount rates. These

14

estimates were based on assumptions that the Company believes to be reasonable. However, actual results may differ from these estimates.

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	130,713
Equity consideration		69,422
Contingent consideration		1,548
Settlement of preexisting liabilities		2,310
Fair value of net assets acquired	$	203,993

Acquisition related costs are not included as a component of consideration transferred but are expensed in the periods in which the costs are incurred. The Company incurred $4.0 million in transaction and integration costs associated with the ARTeSYN Acquisition from the date of acquisition to December 31, 2020, and an additional $3.4 million of transaction and integration costs during 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

The consideration transferred includes approximately $1.5 million related to consideration that was deferred at the acquisition date, with payment to the ARTeSYN Sellers contingent upon recognizing revenue on a large-scale system within 120 days of the acquisition date. This consideration is recorded at its estimated fair value as of the acquisition date, which includes the assumption of high probability of such revenue being recognized.

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. As additional information becomes available, the Company may further revise its preliminary purchase price allocation during the remainder of the measurement period (which will not exceed 12 months from December 3, 2020). Any such revisions or changes may be material. The final allocation may include changes to deferred tax liabilities, net and goodwill. Upon conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments will be recorded to our consolidated statements of comprehensive income. During 2021, the Company recorded net working capital adjustments of $0.1 million related to settlement of pre-acquisition liabilities, which offset goodwill in the table below.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	2,982
Accounts receivable		4,811
Inventory		8,592
Prepaid expenses and other current assets		5,561
Property and equipment		1,836
Operating lease right of use asset		1,611
Other noncurrent assets		26
Customer relationships		38,400
Developed technology		27,060
Trademark and tradename		1,630
Non-competition agreements		300
Goodwill		128,598
Accounts payable		(2,251	)
Accrued liabilities		(8,706	)
Deferred revenue		(3,583	)
Deferred tax liabilities, net		(1,240	)
Notes payable		(24	)
Operating lease liability		(417	)
Operating lease liability, long-term		(1,193	)
Fair value of net assets acquired	$	203,993

Acquired Goodwill

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The goodwill of $128.6 million represents future economic benefits expected to arise from synergies from combining operations and commercial organizations to increase market presence and the extension of existing customer relationships. Substantially all of the goodwill recorded is expected to be deductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the ARTeSYN Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	17 years	$	38,400
Developed technology	15 years		27,060
Trademark and tradename	21 years		1,630
Non-competition agreements	3 years		300
		$	67,390

Non-Metallic Solutions, Inc.

On October 15, 2020, the Company entered into a Stock Purchase Agreement with NMS, a Massachusetts corporation, and each of William Malloneé and Derek Masser, the legal and beneficial owners of NMS, to purchase NMS, which transaction subsequently closed on October 20, 2020 (the “NMS Acquisition”).

NMS, headquartered in Auburn, Massachusetts, is a manufacturer of fabricated plastics, custom containers, and related assemblies and components used in the manufacturing of biologic drugs. The acquisition of NMS allows Repligen to expand its line of single-use systems and associated integrated flow path assemblies and streamline the supply chain for current products, providing more flexibility to scale and expand the Company's single-use and systems portfolios.

Consideration Transferred

The NMS Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations.” Total consideration paid was $16.1 million, which included $1.3 million deposited into an escrow account against which the Company may make claims for indemnification. The fair value of the net tangible assets acquired was $0.9 million, the fair value of the intangible assets acquired was $8.5 million, and the residual goodwill was $6.7 million. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $0.2 million of transaction and integration costs associated with the NMS Acquisition from the date of acquisition to December 31, 2020, and $0.4 million for the nine months ended September 30, 2021. The transaction costs are included in SG&A expenses in the consolidated statements of comprehensive income.

Fair Value of Net Assets Acquired

The allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. We have made appropriate adjustments to the purchase price allocation during the measurement period, which ended on October 20, 2021.

The components and allocation of the purchase price consist of the following (amounts in thousands):

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Cash and cash equivalents	$	1,163
Accounts receivable		415
Inventory		334
Prepaid expenses and other current assets		13
Property and equipment		73
Operating lease right of use asset		194
Customer relationships		6,370
Developed technology		1,810
Trademark and tradename		190
Non-competition agreements		90
Goodwill		6,713
Deferred tax assets		24
Accounts payable		(96	)
Accrued liabilities		(999	)
Operating lease liability		(136	)
Operating lease liability, long-term		(59	)
Fair value of net assets acquired	$	16,099

Acquired Goodwill

The goodwill of $6.7 million represents future economic benefits expected to arise from anticipated synergies from the integration of NMS. These synergies include certain cost savings, operating efficiencies and other strategic benefits projected to be achieved as a result of the NMS Acquisition. Substantially all of the goodwill recorded is expected to be deductible for income tax purposes. In February 2021, the Company recorded an adjustment to goodwill of $0.1 million related to the finalization of the working capital true-up.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the NMS Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	6,370
Developed technology	12 years		1,810
Trademark and tradename	15 years		190
Non-competition agreements	3 years		90
		$	8,460

4.Revenue Recognition

The Company generates revenue from the sale of bioprocessing products, equipment devices, and related consumables used with these equipment devices to customers in the life science and biopharmaceutical industries. Under ASC 606, “Revenue from Contracts with Customers,” revenue is recognized when, or as, obligations under the terms of a contract are satisfied, which occurs when control of the promised products or services is transferred to customers.

Disaggregation of Revenue

Revenues for the three and nine months ended September 30, 2021 and 2020 were as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Product revenue	$	178,177	$	94,029	$	483,834	$	257,521
Royalty and other income		39		31		179		91
Total revenue	$	178,216	$	94,060	$	484,013	$	257,612

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When disaggregating revenue, the Company considered all of the economic factors that may affect its revenues. Because all of its revenues are from bioprocessing customers, there are no differences in the nature, timing and uncertainty of the Company’s revenues and cash flows from any of its product lines. However, given that the Company’s revenues are generated in different geographic regions, factors such as regulatory and geopolitical factors within those regions could impact the nature, timing and uncertainty of the Company’s revenues and cash flows. In addition, a significant portion of the Company’s revenues is generated from a small number of customers; therefore, economic factors specific to these customers could impact the nature, timing and uncertainty of the Company’s revenues and cash flows.

Disaggregated revenue from contracts with customers by geographic region can be found in Note 14, “Segment Reporting,” included in this report.

Revenue from customers that represented 10% or more of the Company’s total revenue for the three months ended September 30, 2021 and 2020 came from sales to Pfizer Inc. during the three months ended September 30, 2021, which generated $19.1 million, or 11% of the Company's total revenue for the period. Revenue from customers that represented 10% or more of the Company's total revenue for the nine months ended September 30, 2021 and 2020 came from sales to MilliporeSigma during the nine months ended September 30, 2020, which generated $29.4 million in revenue, or 11% of the Company's total revenue for the period. There was no revenue from customers that represented 10% or more of the Company's total revenue for the other periods presented.

For more information regarding our product revenue, see Note 5, “Revenue Recognition” included in Part II, Item 8, “Financial Statements and Supplementary Data” to our Form 10-K.

Contract Balances from Contracts with Customers

The following table provides information about receivables and deferred revenue from contracts with customers as of September 30, 2021 (amounts in thousands):

	2021
Balances from contracts with customers only:
Accounts receivable, net of reserves	$	122,048
Deferred revenue (included in accrued liabilities in the consolidated balance sheets)	$	16,337
Revenue recognized during the nine-month period ended September 30, 2021 relating to:
The beginning deferred revenue balance	$	13,071

The timing of revenue recognition, billings and cash collections results in the accounts receivable and deferred revenue balances on the Company’s consolidated balance sheets.

A contract asset is created when the Company satisfies a performance obligation by transferring a promised good to the customer. Contract assets may represent conditional or unconditional rights to consideration. The right is conditional and recorded as a contract asset, if the Company must first satisfy another performance obligation in the contract before it is entitled to payment from the customer. Contract assets are transferred to billed receivables once the right becomes unconditional. If the Company has the unconditional right to receive consideration from the customer, the contract asset is accounted for as a billed receivable and presented separately from other contract assets. A right is unconditional if nothing other than the passage of time is required before payment of that consideration is due.

When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded. Contract liabilities are recognized as revenue after control of the products or services is transferred to the customer and all revenue recognition criteria have been met.

5.Goodwill and Intangible Assets

Goodwill

Goodwill represents the difference between the purchase price and the estimated fair value of identifiable assets acquired and liabilities assumed. Goodwill acquired in a business combination and determined to have an indefinite useful life is not

18

amortized, but instead is tested for impairment at least annually in accordance with ASC 350, “Intangibles – Goodwill and Other”. The following table represents the change in the carrying value of goodwill for the nine months ended September 30, 2021 (amounts in thousands):

Balance at December 31, 2020	$	618,305
Measurement period adjustment - NMS		(71	)
Measurement period adjustments - ARTeSYN		(60	)
Acquisition of Polymem		23,453
Acquisition of Avitide		193,463
Cumulative translation adjustment		(1,531	)
Balance at September 30, 2021	$	833,559

During each of the fourth quarters of 2020, 2019 and 2018, the Company completed its annual impairment assessments and concluded that goodwill was not impaired in any of those years. The Company has not identified any “triggering” events which indicate an impairment of goodwill in the three and nine months ended September 30, 2021.

Intangible Assets

Intangible assets with a definitive life are amortized over their useful lives using the straight-line method, and the amortization expense is recorded within cost of product revenue and SG&A expenses in the Company’s statements of comprehensive income. Intangible assets and their related useful lives are reviewed at least annually to determine if any adverse conditions existed that would indicate the carrying value of these assets may not be recoverable. More frequent impairment assessments are conducted if certain conditions exist, including a change in the competitive landscape, any internal decisions to pursue new or different technology strategies, a loss of a significant customer, or a significant change in the marketplace, including changes in the prices paid for our products or changes in the size of the market for the Company’s products. An impairment results if the carrying value of the asset exceeds the estimated fair value of the asset. If the estimate of an intangible asset’s remaining useful life is changed, the remaining carrying amount of the intangible asset is amortized prospectively over the revised remaining useful life. The Company continues to believe that its intangible assets are recoverable at September 30, 2021.

Indefinite-lived assets are reviewed for impairment at least annually. There has been no impairment of the Company’s intangible assets for the periods presented.

Intangible assets, net consisted of the following at September 30, 2021:

	September 30, 2021
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	141,039	$	(19,426	)	$	121,613		17
Patents		240		(240	)		—		8
Customer relationships		257,297		(47,363	)		209,934		15
Trademarks		7,367		(771	)		6,596		19
Other intangibles		2,826		(1,506	)		1,320		4
Total finite-lived intangible assets		408,769		(69,306	)		339,463		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	409,469	$	(69,306	)	$	340,163

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Intangible assets consisted of the following at December 31, 2020:

	December 31, 2020
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	114,217	$	(14,444	)	$	99,773		17
Patents		240		(240	)		—		8
Customer relationships		217,790		(37,333	)		180,457		16
Trademarks		5,893		(541	)		5,352		20
Other intangibles		2,142		(1,324	)		818		3
Total finite-lived intangible assets		340,282		(53,882	)		286,400		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	340,982	$	(53,882	)	$	287,100

Amortization expense for finite-lived intangible assets was $5.7 million and $4.0 million for each of the three months ended September 30, 2021 and 2020, respectively, and $16.1 million and $11.8 million for each of the nine months ended September 30, 2021 and 2020, respectively. As of September 30, 2021, the Company expects to record the following amortization expense in future periods (amounts in thousands):

	Estimated
	Amortization
For the Nine Months Ended September 30,	Expense
2021 (remaining three months)	$	7,004
2022		25,840
2023		25,722
2024		25,088
2025		24,821
2026 and thereafter		230,988
Total	$	339,463

6.Consolidated Balance Sheet Detail

Inventories, net

Inventories, net consists of the following:

	September 30,		December 31,
	2021		2020
	(Amounts in thousands)
Raw materials	$	105,157	$	48,746
Work-in-process		7,860		8,084
Finished products		43,146		38,195
Total inventories, net	$	156,163	$	95,025

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Property, Plant and Equipment

Property, plant and equipment consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Land	$	1,023		$	1,023
Buildings		764			1,007
Leasehold improvements		51,778			31,331
Equipment		65,764			43,072
Furniture, fixtures and office equipment		8,355			8,714
Computer hardware and software		21,436			15,397
Construction in progress		14,723			14,927
Other		497			455
Total property, plant and equipment		164,340			115,926
Less - Accumulated depreciation		(64,688	)		(49,056	)
Total property, plant and equipment, net	$	99,652		$	66,870

Depreciation expenses totaled $4.3 million and $2.8 million for each of the three months ended September 30, 2021 and 2020, respectively, and $11.3 million and $7.8 million for each of the nine months ended September 30, 2021 and 2020, respectively.

Accrued Liabilities

Accrued liabilities consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Employee compensation	$	34,056		$	20,288
Income taxes payable		8,435			1,423
Royalty and license fees		1,497			466
Warranties		1,759			1,576
Professional fees		2,179			1,425
Deferred revenue		16,337			15,318
Other		(869	)		12,589
Total accrued liabilities	$	63,394		$	53,085

7.Convertible Senior Notes

0.375% Convertible Senior Notes due 2024

On July 19, 2019, the Company issued $287.5 million aggregate principal pursuant to the 2019 Notes, which includes the underwriters’ exercise in full of an option to purchase an additional $37.5 million aggregate principal amount of 2019 Notes (the “Notes Offering”). The net proceeds of the Notes Offering, after deducting underwriting discounts and commissions and other related offering expenses payable by the Company, were approximately $278.5 million. The 2019 Notes are senior, unsecured obligations of the Company, and bear interest at a rate of 0.375% per year. Interest is payable semi-annually in arrears on January 15 and July 15 of each year, beginning on January 15, 2020. The 2019 Notes will mature on July 15, 2024, unless earlier repurchased or converted in accordance with their terms.

During the third quarter of 2021, the closing price of the Company’s common stock exceeded 130% of the conversion price of the 2019 Notes for more than 20 trading days of the last 30 consecutive trading days of the quarter. As a result, the 2019 Notes are convertible at the option of the holders of the 2019 Notes during the fourth quarter of 2021, the quarter immediately following the quarter when the conditions are met, as stated in the terms of the 2019 Notes. These conditions have been met since the third quarter of 2020. As a result, $6,000 aggregate principal amount of the 2019 Notes have been converted by the noteholders since December 31, 2020. The conversions resulted in the issuance of a nominal number of shares of the Company’s common stock to the note holders, and the Company recorded a loss of approximately $1,000 and approximately $6,000 on the conversion of these notes, which is included in other expenses, net on our consolidated statements of

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comprehensive income for the three and nine months ended September 30, 2021. The Company continues to classify the carrying value of the 2019 Notes as current liabilities on the Company’s consolidated balance sheet at September 30, 2021.

The net carrying value of the liability component of the 2019 Notes is as follows:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
0.375% Convertible Senior Notes due 2024:
Principal amount	$	287,493		$	287,500
Unamortized debt discount		(30,793	)		(38,317	)
Unamortized debt issuance costs		(4,377	)		(5,446	)
Net carrying amount	$	252,323		$	243,737

Interest expense recognized on the 2019 Notes for the three months ended September 30, 2021 was $0.3 million, $2.5 million and $0.4 million for the contractual coupon interest, the accretion of the debt discount and the amortization of the debt issuance costs, respectively. Interest expense recognized on the 2019 Notes for the nine months ended September 30, 2021 was $0.8 million, $7.5 million and $1.1 million for the contractual coupon interest, the accretion of the debt discount and the amortization of the debt issuance costs, respectively. The effective interest rate on the 2019 Notes is 5.1%, which included the interest on the 2019 Notes, amortization of the debt discount and debt issuance costs. At September 30, 2021 and December 31, 2020, the carrying value of the 2019 Notes was $252.3 million and $243.7 million, respectively, net of unamortized discount, and the fair value of the 2019 Notes was $732.9 million and $501.0 million, respectively. The fair value of the 2019 Notes was determined based on the most recent trade activity of the 2019 Notes at September 30, 2021.

8.Stockholders’ Equity

Stock Option and Incentive Plans

Under the Company’s current 2018 Stock Option and Incentive Plan (the “2018 Plan”), the number of shares of the Company’s common stock that are reserved and available for issuance is 2,778,000, plus the number of shares of common stock available for issuance under the Company’s previous plans. The shares of common stock underlying any awards under the 2018 Plan and previous plans (together, the “Plans”) that are forfeited, canceled or otherwise terminated (other than by exercise) shall be added back to the shares of stock available for issuance under the 2018 Plan. At September 30, 2021, 2,134,916 shares were available for future grants under the 2018 Plan.

Stock-Based Compensation

For each of the three months ended September 30, 2021 and 2020, the Company recorded stock-based compensation expense of $6.8 million and $4.2 million, respectively, for share-based awards granted under the Plans. For the nine months ended September 30, 2021 and 2020, the Company recorded stock-based compensation expense of $20.5 million and $12.5 million, respectively. The following table presents stock-based compensation expense in the Company’s consolidated statements of comprehensive income:

	Three Months Ended  September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Cost of product revenue	$	489	$	563	$	1,444	$	1,421
Research and development		698		326		2,209		1,092
Selling, general and administrative		5,605		3,336		16,823		9,979
Total stock-based compensation	$	6,792	$	4,225	$	20,476	$	12,492

The 2018 Plan allows for the granting of incentive and nonqualified options to purchase shares of common stock, restricted stock and other equity awards. Employee grants under the Plans generally vest over a three to five-year period, with 20%-33% vesting on the first anniversary of the date of grant and the remainder vesting in equal yearly installments thereafter.

Nonqualified options issued to non-employee directors under the Plans generally vest over one year. In the first quarter of 2018, to create a longer-term retention incentive, the Company’s Compensation Committee granted long-term incentive compensation

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awards to its Chief Executive Officer consisting of both stock options and restricted stock units (“RSUs”) that are subject to time-based vesting over nine years. Options granted under the Plans have a maximum term of ten years from the date of grant and generally, the exercise price of the stock options equals the fair market value of the Company’s common stock on the date of grant. At September 30, 2021, options to purchase 658,600 shares and 619,761 stock units were outstanding under the Plans.

The Company uses the Black-Scholes option pricing model to calculate the fair value of stock option awards on the grant date, and the Company uses the value of the common stock as of the grant date to value RSUs. The Company measures stock-based compensation costs at the grant date based on the estimated fair value of the award. The Company recognizes expense on awards with service-based vesting over the employee’s requisite service period on a straight-line basis. Prior to 2020, the Company issued performance stock units to certain employees which are tied to the achievement of certain Company financial goal metrics and the passage of time. Since 2020, the Company has implemented formal programs that issue performance stock units to certain employees set to vest upon the achievement of individual goals and financial goals of the Company, as well as the passage of time. The Company recognizes expense on performance-based awards over the vesting period based on the probability that the performance metrics will be achieved. The Company recognizes stock-based compensation expense for options that are ultimately expected to vest, and accordingly, such compensation expense has been adjusted for estimated forfeitures.

Information regarding option activity for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted average exercise price		Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Options outstanding at December 31, 2020		696,711		$	43.88		6.90	$	102,958
Granted		38,824		$	202.88
Exercised		(70,935	)	$	28.00
Forfeited/expired/cancelled		(6,000	)	$	48.05
Options outstanding at September 30, 2021		658,600		$	54.93		6.55	$	154,152
Options exercisable at September 30, 2021		343,909		$	38.68		5.87	$	86,085
Vested and expected to vest at September 30, 2021(1)		637,504					6.53	$	149,348

(1)Represents the number of vested options as of September 30, 2021 plus the number of unvested options expected to vest as of September 30, 2021 based on the unvested outstanding options at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the closing price of the common stock on September 30, 2021, the last business day of the third quarter of 2021, of $288.99 per share and the exercise price of each in-the-money option) that would have been received by the option holders had all option holders exercised their options on September 30, 2021. The aggregate intrinsic value of stock options exercised during the nine months ended September 30, 2021 and 2020 was $14.5 million and $30.7 million, respectively.

The weighted average grant date fair value of options granted during the nine months ended September 30, 2021 and 2020 was $88.01 and $48.13, respectively. The total fair value of stock options that vested during the nine months ended September 30, 2021 and 2020 was $2.6 million during each period.

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The fair value of stock units is calculated using the closing price of the Company’s common stock on the date of grant. Information regarding stock unit activity, which includes activity for RSUs and performance stock units, for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Unvested at December 31, 2020		665,540			3.32	$	127,904
Awarded		164,968
Vested		(185,922	)
Forfeited/expired/cancelled		(24,825	)
Unvested at September 31, 2021		619,761			2.94	$	179,105
Unvested and expected to vest at September 30, 2021(1)		623,642			2.61	$	180,226

(1)Represents the number of vested stock units as of September 30, 2021 plus the number of unvested stock units expected to vest as of September 30, 2021 based on the unvested outstanding stock units at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (equal to the closing price of the common stock on September 30, 2021, the last business day of the third quarter of 2021, of $288.99 per share, as stock units do not have an exercise price) that would have been received by the stock unit holders had all holders exercised on September 30, 2021. The aggregate intrinsic value of stock units vested during the nine months ended September 30, 2021 and 2020 was $39.2 million and $25.0 million, respectively.

The weighted average grant date fair value of stock units vested during the nine months ended September 30, 2021 and 2020 was $58.10 and $43.73, respectively. The total fair value of stock units that vested during the nine months ended September 30, 2021 and 2020 was $10.8 million and $9.8 million, respectively.

As of September 30, 2021, there was $61.3 million of total unrecognized compensation cost related to unvested share-based awards. This cost is expected to be recognized over a weighted average remaining requisite service period of 3.08 years. The Company expects 1,950,908 unvested options and stock units to vest over the next five years.

9.Commitments and Contingencies

In June 2018, the Company secured an agreement with Navigo Proteins (“Navigo”) for the exclusive co-development of multiple affinity ligands for which Repligen holds commercialization rights. The Company is manufacturing and supplying the first of these ligands, NGL-Impact®, exclusively to Purolite Life Sciences (“Purolite”), who is pairing the Company’s high-performance ligand with Purolite’s agarose jetting base bead technology used in their Jetted A50 Protein A resin product. The Company also signed a long-term supply agreement with Purolite for NGL-Impact and other potential additional affinity ligands that may advance from the Company’s Navigo collaboration. In September 2020, the Company and Navigo successfully completed co-development of an affinity ligand targeting the SARS-CoV-2 spike protein, to be utilized in the purification of COVID-19 vaccines. The Company has proceeded with scaling up and manufacturing this ligand and the development and validation of the related affinity chromatography resin, which is marketed by the Company. In September 2021, the Company and Navigo successfully completed co-development of a novel affinity ligand that addresses aggravation issues associated with pH sensitive antibodies and Fc-fusion proteins. The Company is manufacturing and supplying this ligand, NGL-Impact® HipH, to Purolite for use in a platform use resin product. The Navigo and Purolite agreements are supportive of the Company’s strategy to secure and reinforce the Company’s proteins business. The Company made royalty payments to Navigo of $0.5 million and $0.2 million for the three months ended September 30, 2021 and 2020, respectively and payments of $1.3 million and $0.4 million for the nine months ended September 30, 2021 and 2020, respectively.

10.Accumulated Other Comprehensive (Loss) Income

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The following shows the changes in the components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2021 which consisted of only foreign currency translation adjustments for the periods shown (amounts in thousands):

	Foreign
	Currency
	Translation
	Adjustment
Balance as of December 31, 2020	$	2,085
Other comprehensive loss		(12,004	)
Balance at September 30, 2021	$	(9,919	)

11.Income Taxes

For the three and nine months ended September 30, 2021, we recorded an income tax provision of $7.7 million and $19.5 million, respectively. The Company’s effective tax rate for the three and nine months ended September 30, 2021 was 18.8% and 16.4%, respectively, compared to 18.0% and 9.5% for the corresponding periods in the prior year. The increase in effective tax rates was primarily due to higher income before income taxes, lower windfall benefits recognized on stock option exercises and the vesting of stock units partially offset by lower U.S. taxation of foreign earnings. The effective tax rates for the three and nine months ended September 30, 2021 and 2020 were lower than the U.S. statutory rate of 21% primarily due to business tax credits and windfall benefits on stock option exercises and the vesting of stock units.

12.Earnings Per Share

The Company reports earnings per share in accordance with ASC 260, “Earnings Per Share,” which establishes standards for computing and presenting earnings per share. Basic earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income available to common shareholders by the weighted-average number of common shares and dilutive common share equivalents then outstanding. Potential common share equivalents consist of RSUs, performance stock units and the incremental common shares issuable upon the exercise of stock options. Under the treasury stock method, unexercised “in-the-money” stock options and warrants are assumed to be exercised at the beginning of the period or at issuance, if later. The assumed proceeds are then used to purchase common shares at the average market price during the period. In periods when the Company has a net loss, stock awards are excluded from the calculation of earnings per share as their inclusion would have an antidilutive effect.

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A reconciliation of basic and diluted weighted average shares outstanding is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands, except per share data)
Net income	$	33,498	$	14,552	$	99,181	$	40,228
Weighted average shares used in computing net      income per share - basic		55,015		52,545		54,918		52,341
Effect of dilutive shares:
Options and stock units		919		916		913		951
Convertible senior notes		1,373		8		1,180		8
Dilutive effect of unvested performance stock units		61		—		61		—
Dilutive potential common shares		2,353		924		2,154		959
Weighted average shares used in computing net      income per share - diluted		57,368		53,469		57,072		53,300
Earnings per share:
Basic	$	0.61	$	0.28	$	1.81	$	0.77
Diluted	$	0.58	$	0.27	$	1.74	$	0.75

At September 30, 2021, there were outstanding options to purchase 658,600 shares of the Company’s common stock at a weighted average exercise price of $54.93 per share and 619,761 shares of common stock issuable upon the vesting of stock units, which include RSUs and performance stock units. For the three and nine months ended September 30, 2021, 44,912 shares and 63,770 shares, respectively, of the Company’s common stock were excluded from the calculation of diluted earnings per share because the exercise prices of the stock options were greater than or equal to the average price of the common shares and were therefore anti-dilutive.

At September 30, 2020, there were outstanding options to purchase 723,914 shares of the Company’s common stock at a weighted average exercise price of $41.03 per share and 675,567 shares of common stock issuable upon the vesting of stock units, which include RSUs and performance stock units. For the three and nine months ended September 30, 2020, 60,202 and 117,160 shares of the Company’s common stock were excluded from the calculation of diluted earnings per share because the exercise prices of the stock options were greater than or equal to the average price of the common shares and were therefore anti-dilutive.

In July 2019, the Company issued $287.5 million aggregate principal amount of the 2019 Notes. As provided by the terms of the indenture underlying the 2019 Notes, conversion of the 2019 Notes will be settled in cash, shares of the Company’s common stock or a combination thereof, at the Company’s election. As of September 30, 2021, the 2019 Notes were convertible. The Company currently intends to settle the par value of the 2019 Notes in cash and any excess conversion premium in shares.

As provided by the terms of the indenture underlying the 2019 Notes, the Company has a choice to settle the conversion obligation for the 2019 Notes in cash, shares or any combination of the two. The Company currently intends to settle the par value of the 2019 Notes in cash and any excess conversion premium in shares. The Company applies the provisions of ASC 260, “Earnings Per Share”, Subsection 10-45-44, to determine the diluted weighted average shares outstanding as it relates to the conversion spread on its convertible notes. Accordingly, the par value of the 2019 Notes is not included in the calculation of diluted income per share, but the dilutive effect of the conversion premium is considered in the calculation of diluted net income per share using the treasury stock method. The dilutive impact of the 2019 Notes is based on the difference between the Company’s current period average stock price and the conversion price of the 2019 Notes, provided there is a premium. Pursuant to this accounting standard, there is no dilution from the accreted principal of the 2019 Notes. For the three and nine months ended September 30, 2021, the dilutive effect of the conversion premium included in the calculation of diluted earnings was 1,373,341 shares and 1,180,425 shares, respectively. There was no dilutive effect of the conversion premium included in the calculation of diluted earnings per share for the three and nine months ended September 30, 2020.

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On September 20, 2021, as a result of the Avitide Acquisition, the Company assumed a contingent consideration obligation for earnout payments in an aggregate amount of $80.0 million which will be paid equally in cash and the Company’s common stock, contingent upon the achievement of certain performance thresholds and targets each year over a three year period as discussed in Note 2, “Fair Value Measurements,” to these consolidated financial statements. As of September 30, 2021, none of the contingent triggers have occurred.

13.Related Party Transactions

Certain facilities leased by Spectrum are owned by Roy Eddleman, the former owner of Spectrum. As of September 30, 2021, Mr. Eddleman owned greater than 5% of the Company’s outstanding shares and the Company considers him to be a related party. The lease amounts paid to this shareholder prior to the public offering were negotiated in connection with the acquisition of Spectrum. The Company incurred rent expense totaling $0.2 million and $0.1 million for each of the three months ended September 30, 2021 and 2020, respectively, related to these leases and incurred rent expense of $0.5 million for each of the nine months ended September 30, 2021 and 2020, respectively.

14.Segment Reporting

The Company views its operations, makes decisions regarding how to allocate resources and manages its business as one reportable segment and one reporting unit. As a result, the financial information disclosed herein represents all of the material financial information related to the Company.

The following table represents the Company’s total revenue by geographic area (based on the location of the customer):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Revenue by customers' geographic locations:
North America		44	%		50	%		42	%		48	%
Europe		42	%		36	%		40	%		38	%
APAC/Other		14	%		14	%		18	%		14	%
Total revenue		100	%		100	%		100	%		100	%

Concentrations of Credit Risk and Significant Customers

Financial instruments that subject the Company to significant concentrations of credit risk primarily consist of cash and cash equivalents, marketable securities and accounts receivable. Per the Company’s investment policy, cash equivalents and marketable securities are invested in financial instruments with high credit ratings and credit exposure to any one issue, issuer (with the exception of U.S. Treasury obligations) and type of instrument is limited. At September 30, 2021 and December 31, 2020, the Company had no investments associated with foreign exchange contracts, options contracts or other foreign hedging arrangements.

Concentration of credit risk with respect to accounts receivable is limited to customers to whom the Company makes significant sales. While a reserve for the potential write-off of accounts receivable is maintained, the Company has not written off any significant accounts to date. To control credit risk, the Company performs regular credit evaluations of its customers’ financial condition.

Revenue from customers that represented 10% or more of the Company’s total revenue for the three months ended September 30, 2021 and 2020 came from sales to Pfizer Inc. during the three months ended September 30, 2021, which generated $19.1 million, or 11% of the Company's total revenue for the period. Revenue from customers that represented 10% or more of the Company's total revenue for the nine months ended September 30, 2021 and 2020 came from sales to MilliporeSigma during the nine months ended September 30, 2020, which generated $29.4 million in revenue, or 11% of the Company's total revenue for the period. There was no revenue from customers that represented 10% or more of the Company's total revenue for the other periods presented.

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Significant accounts receivable balances representing 10% or more of the Company’s total trade accounts receivable and royalties and other receivable balances at September 30, 2021 and December 31, 2020 are as follows:

	September 30,			December 31,
	2021			2020
Pfizer Inc.		10	%	N/A
Cytiva	N/A				11	%

ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

Repligen and its subsidiaries, collectively doing business as Repligen Corporation (“Repligen”, “we”, “our”, or the “Company”) is a global life sciences company that develops and commercializes highly innovative bioprocessing technologies and systems that increase efficiencies and flexibility in the process of manufacturing biological drugs.

As the overall market for biologics continues to grow and expand, our customers – primarily large biopharmaceutical companies and contract development and manufacturing organizations – face critical production cost, capacity, quality and time pressures. Built to address these concerns, our products are helping to set new standards for the way biologics are manufactured. We are committed to inspiring advances in bioprocessing as a trusted partner in the production of critical biologic drugs – including monoclonal antibodies (“mAb”), recombinant proteins, vaccines and gene therapies – that are improving human health worldwide. For more information regarding our business, products and acquisitions, see Part I, Item 1, “Business” included in our 2020 Annual Report on Form 10-K (“Form 10-K”), which was filed with the Securities and Exchange Commission (“SEC”) on February 24, 2021.

We currently operate as one bioprocessing business, with a comprehensive suite of products to serve both upstream and downstream processes in biological drug manufacturing. Building on over 35 years of industry expertise, we have developed a broad and diversified product portfolio that reflects our passion for innovation and the customer-first culture that drives our entire organization. We continue to capitalize on opportunities to maximize the value of our product platform through both organic growth initiatives (internal innovation and commercial leverage) and targeted acquisitions.

2021 Acquisitions

Acquisition of Avitide, Inc.

On September 16, 2021, we entered into an Agreement and Plan of Merger and Reorganization (“Merger Agreement”) with Avalon Merger Sub, Inc., a Delaware corporation and our wholly owned direct subsidiary (“First Merger Sub”), Avalon Merger Sub LLC, a Delaware limited liability company and our wholly owned direct subsidiary (“Second Merger Sub” and together with First Merger Sub, the “Merger Subs”), Avitide, Inc., a Delaware corporation (“Avitide”), and Shareholder Representative Services LLC, a Colorado limited liability company, solely in its capacity as the representative, agent and attorney-in-fact of Avitide's securityholders (the “Securityholder Representative”) to purchase Avitide. The transaction closed on September 20, 2021 (the “Avitide Acquisition”) and on the terms set forth in the Merger Agreement.

Avitide, which is headquartered in Lebanon, New Hampshire, offers diverse libraries and leading technology in affinity ligand discovery and development resulting in best-in-class ligand discovery and development lead-times. The acquisition gives Repligen a new platform for affinity resin development, including gene therapy, and advances and expands our proteins franchise to address the unique purification needs of gene therapies and other emerging modalities.

Acquisition of Polymem S.A.

On June 22, 2021, we entered into a Stock Purchase Agreement with Polymem S.A. (“Polymem”), a company organized under the laws of France, and Jean-Michel Espenan and Franc Saux, acting together jointly and severally as the representatives of the sellers, which subsequently closed on July 1, 2021 (the “Polymem Acquisition.”).

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Polymem, which is headquartered in, Toulouse, France, is a manufacturer of hollow fiber membranes, membrane modules and systems for industrial and bioprocessing applications. Polymem products will complement and expand Repligen’s portfolio of hollow fiber systems and consumables. The acquisition substantially increases our membrane and module manufacturing capacity and establishes a world-class center of excellence in Europe to address the accelerating global demand for these innovative products.

2020 Acquisitions

ARTeSYN Biosolutions Holdings Ireland Limited

On October 27, 2020, we entered into an Equity and Asset Purchase Agreement with ARTeSYN Biosolutions Holdings Ireland Limited (“ARTeSYN”), a company organized under the laws of Ireland, Third Creek Holdings, LLC, a Nevada limited liability company (“Third Creek”), Alphinity, LLC, a Nevada limited liability company (“Alphinity”, and together with Third Creek the “ARTeSYN Sellers”), and Michael Gagne, solely in his capacity as the representative of the ARTeSYN Sellers, pursuant to which the Company acquired (i) all of the outstanding equity securities of ARTeSYN and (ii) certain assets from Alphinity related to the business of ARTeSYN (collectively, the “ARTeSYN Acquisition”).

ARTeSYN is headquartered in Waterford, Ireland and conducts its operations in Ireland, the United States and Estonia. Its suite of single-use solutions has been created with the goal of enabling “abundance in medicine” by allowing greater efficiency in biologics manufacturing. The ARTeSYN team has created a number of solutions targeting the single-use space from single-use valves with fully disposable valve liners, XO® skeletal supports, a hybrid small parts offering for de-bottlenecking traditional facilities, and fully automated SU process systems that have quickly become leading solutions in the bioprocessing industry. ARTeSYN has established downstream processing leadership with a suite of state of the art single-use systems for chromatography, filtration, continuous manufacturing and media/buffer prep workflows. In addition, we have integrated unique flow path assemblies utilizing our silicone extrusion and molding technology, to deliver highly differentiated, low hold-up volume systems that minimize product loss during processing. The ARTeSYN portfolio expands on the market success of the hollow fiber systems and complements our chromatography and TFF filtration product lines.

Non-Metallic Solutions, Inc.

On October 15, 2020, we executed a Stock Purchase Agreement with Non-Metallic Solutions, Inc. (“NMS”), a Massachusetts corporation, and each of William Malloneé and Derek Masser, the legal and beneficial owners of NMS, to purchase NMS, which transaction subsequently closed on October 20, 2020 (the “NMS Acquisition”).

NMS, headquartered in Auburn, Massachusetts, is a manufacturer of fabricated plastics, custom containers, and related assemblies and components used in the manufacturing of biologic drugs. The acquisition of NMS strengthens the Company’s portfolio of single-use integrated systems and flow path assemblies, streamlines our supply chain for current products, and provides greater flexibility to scale and expand single-use and systems portfolios.

Critical Accounting Policies and Estimates

A “critical accounting policy” is one which is both important to the portrayal of our financial condition and results and requires management’s most difficult, subjective or complex judgments, often as a result of the need to make estimates about the effect of matters that are inherently uncertain. For a description of our critical accounting policies that affect our more significant judgments and estimates used in the preparation of our consolidated financial statements, refer to Management’s Discussion and Analysis of Financial Condition and Results of Operations and our significant accounting policies in Note 2 to the consolidated financial statements included in our Form 10-K.

Results of Operations

The following discussion of the financial condition and results of operations should be read in conjunction with the accompanying consolidated financial statements and the related footnotes thereto.

Revenues

Total revenue for the three and nine months ended September 30, 2021 and 2020 were as follows:

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	Three Months Ended September 30,				Increase/(Decrease)					Nine Months Ended September 30,				Increase/(Decrease)
	2021		2020		$ Change		% Change			2021		2020		$ Change		% Change
	(Amounts in thousands, except for percentage data)
Revenue:
Products	$	178,177	$	94,029	$	84,148		89.5	%	$	483,834	$	257,521	$	226,313		87.9	%
Royalty and other		39		31		8		25.8	%		179		91		88		96.7	%
Total revenue	$	178,216	$	94,060	$	84,156		89.5	%	$	484,013	$	257,612	$	226,401		87.9	%

Product revenues

Direct sales represented approximately 82% of our product revenue for each of the three months ended September 30, 2021 and 2020, respectively, and represented 82% and 77% of our product revenue for each of the nine months ended September 30, 2021 and 2020, respectively. We expect that direct sales will continue to account for an increasing percentage of our product revenues, as the largest customer of our OEM products diversified its supply chain in 2020. Sales of our bioprocessing products can be impacted by the timing of large-scale production orders and the regulatory approvals for such antibodies, which may result in significant quarterly fluctuations.

Revenues from our filtration franchise include the sales of our XCell ATF® systems and consumables, KrosFlo TFF and TFDF systems, Polymem hollow fiber membranes and modules, TangenX® flat sheet cassettes, ARTeSYN® systems, ProConnex® flow paths and silicone-molded and plastic consumables, including those manufactured by EMT and NMS. Revenues from our process analytics franchise includes the sale of our SoloVPE®, FlowVPE® and FlowVPX® systems and associated consumables and service. Revenues from our chromatography franchise include the sales of our OPUS® pre-packed columns, resins, ELISA test kits and ARTeSYN® systems. Revenues from our proteins franchise include the sale of our Protein A ligands and cell culture growth factors. Other revenue primarily consists of sales of our operating room products to hospitals as well as freight revenue.

During the three and nine months ended September 30, 2021, product revenue increased by $84.1 million, or 89.5% and $226.3 million, or 87.9%, as compared to the same periods of 2020, with exceptionally robust demand for our filtration and proteins products. Since the second quarter of 2020, we have experienced accelerated demand across all of our franchises due to the critical needs of customers working on the novel coronavirus (“COVID-19”) vaccines and therapeutics. In addition, we saw an increase in demand for gene therapy and monoclonal antibody manufacturing. The Polymem Acquisition and the Avitide Acquisition during the third quarter of 2021 resulted in an increase in product revenue during the three and nine months ended September 30, 2021 for which there were no comparable amounts in 2020.

Royalty revenues

Royalty revenues in the three and nine months ended September 30, 2021 and 2020 relate to royalties received from a third-party systems manufacturer associated with our OPUS PD chromatography columns. Royalty revenues are variable and are dependent on sales generated by our partner.

Costs of product revenue and operating expenses

Total costs and operating expenses for the three and nine months ended September 30, 2021 and 2020 were comprised of the following:

	Three Months Ended September 30,				Increase/(Decrease)					Nine Months Ended September 30,				Increase/(Decrease)
	2021		2020		$ Change		% Change			2021		2020		$ Change		% Change
	(Amounts in thousands, except for percentage data)
Cost of product revenue	$	75,495	$	39,626	$	35,869		90.5	%	$	197,232	$	108,471	$	88,761		81.8	%
Research and development		9,154		4,422		4,732		107.0	%		25,155		13,460		11,695		86.9	%
Selling, general and     administrative		48,373		29,051		19,322		66.5	%		131,809		83,277		48,532		58.3	%
Total costs and operating      expenses	$	133,022	$	73,099	$	59,923		82.0	%	$	354,196	$	205,208	$	148,988		72.6	%

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Cost of product revenue

Cost of product revenue increased 90.5% and 81.8% in the three and nine months ended September 30, 2021, compared to the same periods of 2020, due primarily to the increase in product revenue mentioned above and costs associated with higher product volume. In addition, there was an increase in manufacturing headcount for the three and nine months ended September 30, 2021, as compared to the same periods of 2020, which resulted in higher employee-related costs. Our two acquisitions in 2021 have also contributed to the increase in cost of product revenue for the three and nine months ended September 30, 2021 since there were no comparable costs during 2020.

Gross margin was 57.6% and 59.3% in the three and nine months ended September 30, 2021. The gross margin for the three and nine months ended September 30, 2021 includes $0.3 million and $1.9 million, respectively, of amortization of inventory step-up associated with the Polymem Acquisition and ARTeSYN Acquisition. The gross margin for the three and nine months ended September 30, 2020 was 57.9%. Excluding the step-up amortization, gross margin for the three and nine months ended September 30, 2021 was 57.8% and 59.6%, respectively. The increase in gross margin, excluding the inventory step-up amortization, in the nine months ended September 30, 2021, as compared to the same period of 2020, is due primarily to the increase in revenue mentioned above, and favorable product mix, partially offset by an increase in manufacturing headcount subsequent to September 30, 2020. Gross margins may fluctuate in future quarters based on expected production volume and product mix.

Research and development expenses

Research and development (“R&D”) expenses are related to bioprocessing products, which include personnel, supplies and other research expenses. Due to the size of the Company and the fact that these various programs share personnel and fixed costs, we do not track all of our expenses or allocate any fixed costs by program, and therefore, have not provided historical costs incurred by project.

R&D expenses increased 107.0% during the three months ended September 30, 2021, compared to the same period of 2020. The increase during the period is primarily due to spending on new product development and the addition of R&D expenses incurred by Avitide, Polymem and ARTeSYN during the period, for which there were no comparable costs in 2020, and due to the increase in employee related costs as the number of R&D employees has increased since September 30, 2020.

R&D expenses increased 86.9% during the nine months ended September 30, 2021, compared to the same period of 2020. The increase during the period is due to the addition of R&D expenses related to operations of Avitide, Polymem and ARTeSYN, and increased costs associated with a rise in R&D headcount and the ramp up of project spending for new product development during the nine months ended September 30, 2021.

We expect our R&D expenses for the remainder of 2021 to gradually increase to support new product development.

Selling, general and administrative expenses

Selling, general and administrative (“SG&A”) expenses include the costs associated with selling our commercial products and costs required to support our marketing efforts, including legal, accounting, patent, shareholder services, amortization of intangible assets and other administrative functions.

During the three and nine months ended September 30, 2021, SG&A costs increased by $19.3 million, or 66.5%, and $48.5 million, or 58.3%, as compared to the same periods of 2020. The increase is partially due to the continued expansion of our customer-facing activities to drive sales of our bioprocessing products, and the continued buildout of our administrative infrastructure, primarily through increased headcount, to support expected future growth. Employee-related costs during the three and nine months ended September 30, 2021, as compared to the same periods in 2020, resulted from the increase in headcount period over period. In addition, SG&A costs increased for the three and nine months ended September 30, 2021, respectively due to the addition of NMS and ARTeSYN during the fourth quarter of 2020 and the addition of Polymem and Avitide during the third quarter of 2021, for which there were no comparable costs for the same periods of 2020.

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Other expenses, net

The table below provides detail regarding our other expenses, net:

	Three Months Ended September 30,						Increase/(Decrease)						Nine Months Ended September 30,						Increase/(Decrease)
	2021			2020			$ Change			% Change			2021			2020			$ Change			% Change
	(Amounts in thousands, except for percentage data)
Investment income	$	44		$	82		$	(38	)		(46.3	%)	$	137		$	1,699		$	(1,562	)		(91.9	%)
Interest expense		(3,220	)		(3,052	)		(168	)		5.5	%		(9,470	)		(9,032	)		(438	)		4.8	%
Other expenses		(786	)		(248	)		(538	)		216.9	%		(1,789	)		(632	)		(1,157	)		183.1	%
Total other expense, net	$	(3,962	)	$	(3,218	)	$	(744	)		23.1	%	$	(11,122	)	$	(7,965	)	$	(3,157	)		39.6	%

Investment income

Investment income includes income earned on invested cash balances. The decrease of $38 thousand and $1.6 million in the three and nine months ended September 30, 2021, as compared to the same periods of 2020, respectively, was attributable to a decrease in interest rates on our invested cash balances. In March 2020, in response to the outbreak of COVID-19 and to stay ahead of disruptions and economic slowdown, the Federal Reserve reduced federal funds rates to a range of 0.0% to 0.25%, which will continue to affect our investment income in future periods. We expect investment income to vary based on changes in the amount of funds invested and fluctuation of interest rates.

Interest expense

Interest expense in the three and nine months ended September 30, 2021 and 2020 is primarily from our 0.375% Convertible Senior Notes due 2024 (the “2019 Notes”), which were issued in July 2019. Interest expense, which includes the amortization of debt issuance costs and contractual coupon interest, increased $0.2 million and $0.4 million for the three and nine months ended September 30, 2021, as compared to the same periods in 2020. This is a result of the decrease in the balance of debt issuance costs that are being amortized. As these costs decrease, the carrying value of the debt increases and interest calculated based on the carrying value increases as well.

Other expenses

The change in other expenses, net during the three and nine months ended September 30, 2021, compared to the same period of 2020, is primarily attributable to realized foreign currency losses related to amounts due from non-Swedish krona-based customers and vendors.
 

Income tax provision

Income tax provision for the three and nine months ended September 30, 2021 and 2020 was as follows:

	Three Months Ended September 30,						Increase/(Decrease)					Nine Months Ended September 30,						Increase/(Decrease)
	2021			2020			$ Change		% Change			2021			2020			$ Change		% Change
	(Amounts in thousands, except for percentage data)
Income tax provision	$	7,734		$	3,191		$	4,543		142.4	%	$	19,514		$	4,211		$	15,303		363.4	%
Effective tax rate		18.8	%		18.0	%							16.4	%		9.5	%

For the three and nine months ended September 30, 2021, we recorded an income tax provision of $7.7 million and $19.5 million, respectively. The effective tax rate was 18.8% and 16.4% for the three and nine months ended September 30, 2021 and is based upon the estimated income for the year ending December 31, 2021 and the composition of income in different jurisdictions. The increase in effective tax rates was primarily due to higher income before income taxes, lower windfall benefits recognized on stock option exercises and the vesting of stock units, partially offset by lower U.S. taxation of foreign earnings. The effective tax rate for the three and nine months ended September 30, 2021 was lower than the U.S. statutory rate of 21% primarily due to business tax credits and windfall benefits on stock option exercises and the vesting of stock units. For the three and nine months ended September 30, 2020, we recorded an income tax provision of $3.2 million and $4.2 million, respectively. The effective tax rate was 18.0% and 9.5% for the three and nine months ended September 30, 2020 and is based upon the estimated income for the year ending December 31, 2020 and the composition of income in different jurisdictions.

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The effective tax rate for the three and nine months ended September 30, 2020 was lower than the U.S. statutory rate of 21% primarily due to windfall benefits on stock option exercise and the vesting of stock units.

Non-GAAP Financial Measures

We provide non-GAAP adjusted income from operations; adjusted net income; and adjusted EBITDA as supplemental measures to GAAP measures regarding our operating performance. These financial measures exclude the items detailed below and, therefore, have not been calculated in accordance with GAAP. A detailed explanation and a reconciliation of each non-GAAP financial measure to its most comparable GAAP financial measure are provided below.

We include this financial information because we believe these measures provide a more accurate comparison of our financial results between periods and more accurately reflect how management reviews its financial results. We excluded the impact of certain acquisition-related items because we believe that the resulting charges do not accurately reflect the performance of our ongoing operations for the period in which such charges are incurred.

Non-GAAP adjusted income from operations

Non-GAAP adjusted income from operations is measured by taking income from operations as reported in accordance with GAAP and excluding inventory step-up charges, acquisition and integration costs, and intangible amortization booked through our consolidated statements of comprehensive income. The following is a reconciliation of income from operations in accordance with GAAP to non-GAAP adjusted income from operations for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
GAAP income from operations	$	45,194	$	20,961	$	129,817	$	52,404
Non-GAAP adjustments to income from operations:
Inventory step-up charges		270		144		1,868		144
Acquisition and integration costs		5,824		1,849		11,593		6,536
Intangible amortization		5,677		3,925		16,001		11,677
Non-GAAP adjusted income from operations	$	56,965	$	26,879	$	159,279	$	70,761

Non-GAAP adjusted net income

Non-GAAP adjusted net income is measured by taking net income as reported in accordance with GAAP and excluding acquisition and integration costs, intangible amortization, inventory step-up charges, loss on conversion of debt, non-cash interest expense, contingent consideration fair value adjustments and the tax effects of these items. The following are reconciliations of net income in accordance with GAAP to non-GAAP adjusted net income for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended September 30,
	2021						2020
				Fully Diluted						Fully Diluted
				Earnings per						Earnings per
	Amount			Share			Amount			Share
	(Amounts in thousands, except per share data)
GAAP net income	$	33,498		$	0.58		$	14,552		$	0.27
Non-GAAP adjustments to net income:
Inventory step-up charges		270			0.00			144			0.00
Acquisition and integration costs		5,824			0.10			1,849			0.03
Intangible amortization		5,677			0.10			3,925			0.07
Loss on conversion of debt		1			—			—			—
Non-cash interest expense		2,902			0.05			2,759			0.05
Tax effect of non-GAAP charges		(3,467	)		(0.06	)		(2,072	)		(0.04	)
Non-GAAP adjusted net income	$	44,705		$	0.78		$	21,157		$	0.40

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	Nine Months Ended September 30,
	2021						2020
				Fully Diluted						Fully Diluted
				Earnings per						Earnings per
	Amount			Share			Amount			Share
	(Amounts in thousands, except per share data)
GAAP net income	$	99,181		$	1.74		$	40,228		$	0.75
Non-GAAP adjustments to net income:
Inventory step-up charges		1,868			0.03			144			0.00
Acquisition and integration costs		11,593			0.20			6,536			0.12
Intangible amortization		16,001			0.28			11,677			0.22
Loss on conversion of debt		6			—			—			—
Non-cash interest expense		8,592			0.15			8,174			0.15
Tax effect of non-GAAP charges		(8,904	)		(0.16	)		(6,334	)		(0.12	)
Non-GAAP adjusted net income	$	128,337		$	2.25		$	60,425		$	1.13

* Per share totals may not add due to rounding.

Adjusted EBITDA

Adjusted EBITDA is measured by taking net income as reported in accordance with GAAP, excluding investment income, interest expense, taxes, depreciation and amortization, acquisition and integration costs, inventory step-up charges, loss on conversion of debt and contingent consideration fair value adjustments booked through our consolidated statements of comprehensive income. The following is a reconciliation of net income in accordance with GAAP to adjusted EBITDA for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended September 30,						Nine Months Ended September 30,
	2021			2020			2021			2020
	(Amounts in thousands)
GAAP net income	$	33,498		$	14,552		$	99,181		$	40,228
Non-GAAP EBITDA adjustments to net income:
Investment income		(44	)		(82	)		(137	)		(1,699	)
Interest expense		3,220			3,052			9,470			9,032
Income tax provision		7,734			3,191			19,514			4,211
Depreciation		4,308			2,757			11,360			7,820
Amortization		5,705			3,953			16,084			11,760
EBITDA		54,421			27,423			155,472			71,352
Other non-GAAP adjustments:
Inventory step-up charges		270			144			1,868			144
Acquisition and integration costs		5,824			1,849			11,593			6,536
Loss on conversion of debt		1			—			6			—
Adjusted EBITDA	$	60,516		$	29,416		$	168,939		$	78,032

Liquidity and Capital Resources

We have financed our operations primarily through revenues derived from product sales, the issuance of the 2019 Notes in July 2019 and the issuance of common stock in our December 2020, July 2019 and May 2019 public offerings (the “Offerings”). Our revenue for the foreseeable future will primarily be limited to our bioprocessing product revenue.

At September 30, 2021, we had cash and cash equivalents of $621.1 million compared to cash and cash equivalents of $717.3 million at December 31, 2020.

During the third quarter of 2021, the closing price of the Company’s common stock exceeded 130% of the conversion price of the 2019 Notes for more than 20 trading days of the last 30 consecutive trading days of the quarter. As a result, the 2019 Notes are convertible at the option of the holders of the 2019 Notes during the fourth quarter of 2021, the quarter immediately following the quarter when the conditions are met, per the First Supplemental Indenture underlying the 2019 Notes. These conditions have been met each quarter since the third quarter of 2020. As a result, $6,000 aggregate principal amount of the

34

2019 Notes have been converted since December 31, 2020. The conversions resulted in the issuance of a nominal number of shares of the Company’s common stock to the holder, and the Company recorded a loss of approximately $6,000 on the conversion of these notes, which is included in other expenses, net on our consolidated statements of comprehensive income for the three and nine months ended September 30, 2021. The 2019 Notes have a face value of $287.5 million and a carrying value and a carrying value of $252.3 million and continue to be classified as current liabilities on the Company’s consolidated balance sheet as of September 30, 2021. It is the Company’s policy and intent to settle the face value of the 2019 Notes in cash and any excess conversion premium in shares of our common stock.

In July 2020, the Company entered into a First Amendment to the lease agreement for its Marlborough, Massachusetts facility, expanding the leased space by 66,939 square feet. In December 2020, the Company signed the Second Amendment to the lease agreement, changing the commencement date from April 1, 2021 to January 1, 2021. As a result, under the amended lease agreement, the Company will pay an additional $5.7 million in base rent over the life of the lease, which expires on November 30, 2028.

In May 2021, the Company entered into an agreement to lease approximately 64,000 square feet of space at a site in Hopkinton, Massachusetts, which expires on August 15, 2034. This space will be used as an assembly center for our ProConnex® single-use flow path products. Under the lease, the Company will pay $17.7 million in base rent over the term of the lease.

Cash flows

	Nine Months Ended September 30,						Increase/(Decrease)
	2021			2020			$ Change
	(Amounts in thousands)
Operating activities	$	69,396		$	47,754		$	21,642
Investing activities		(158,893	)		(43,097	)		(115,796	)
Financing activities		730			7,078			(6,348	)
Effect of exchange rate changes on cash, cash equivalents     and restricted cash		(7,427	)		4,160			(11,587	)
Net (decrease) increase in cash, cash equivalents and restricted cash	$	(96,194	)	$	15,895		$	(112,089	)

Operating activities

For the nine months ended September 30, 2021, our operating activities provided cash of $69.4 million reflecting net income of $99.2 million and non-cash charges totaling $65.1 million primarily related to depreciation, amortization, inventory step-up amortization, deferred income taxes, amortization of debt discount and issuance costs and stock-based compensation charges. An increase in accounts receivable consumed $52.0 million of cash and was primarily driven by the 87.9% year-to-date increase in revenues. An increase in inventory manufactured of $61.6 million supports expected increases in future revenue. The increases in accounts receivable and inventory manufactured are offset by an increase in accounts payable of $9.0 million, which was primarily due to increased inventory purchases to support customer orders, an increase in accrued liabilities of $10.1 million, which was due to an increase in the accrual for expected costs, and to a decrease in deferred revenue related to products shipped during the first half of 2021. The remaining net cash used in operating activities resulted from unfavorable changes in various other working capital accounts.

For the nine months ended September 30, 2020, our operating activities provided cash of $47.8 million reflecting net income of $40.2 million and non-cash charges totaling $40.5 million primarily related to depreciation, amortization, deferred income taxes, non-cash interest expense and stock-based compensation charges. An increase in accounts receivable consumed $11.5 million of cash and was primarily driven by the 35.4% year-to-date increase in revenues. An increase in inventory consumed $22.8 million to support future revenue. An increase in accounts payable and accrued liabilities of $1.1 million was due primarily to increased inventory purchases to support customer orders, offset by payment of acquisition-related bonuses for C Technologies during the second quarter of 2020. The remaining cash provided by operating activities resulted from favorable changes in various other working capital accounts.

Investing activities

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Our investing activities consumed $158.9 million of cash during the nine months ended September 30, 2021. We used $121.0 million in cash (net of cash received) for the Polymem Acquisition and the Avitide Acquisition, in the aggregate. Capital expenditures consumed $37.9 million as we continue to increase our manufacturing capacity worldwide. Of these expenditures, $2.9 million represented capitalized costs related to our internal-use software.

Our investing activities consumed $43.1 million of cash during the nine months ended September 30, 2020 related to the acquisition of Engineered Molding Technology LLC (“EMT”) on July 13, 2020, as well as ongoing capital expenditures. We consumed $28.5 million in cash (net of cash received) for EMT. Capital expenditures included $3.6 million for capitalized costs related to our internal-use software.

Financing activities

Cash provided by financing activities of $0.7 million for the nine months ended September 30, 2021 included proceeds from stock option exercises during the period offset by cash disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units. Proceeds from stock option exercises during the nine months ended September 30, 2021 were $2.0 million offset by $1.3 million of cash disbursed to pay tax obligation on the vesting of restricted stock units.

Cash provided by financing activities of $7.1 million for the nine months ended September 30, 2020 included proceeds from stock option exercises and the vesting of stock units during the period.

Working capital decreased by $22.0 million to $561.4 million at September 30, 2021 from $583.4 million at December 31, 2020 due to the various changes noted above.

Our future capital requirements will depend on many factors, including the following:

the expansion of our bioprocessing business;

the ability to sustain sales and profits of our bioprocessing products;

our ability to acquire additional bioprocessing products;

the scope of and progress made in our R&D activities;

contingent consideration earnout payments resulting from our acquisitions;

the extent of any share repurchase activity; and

the success of any proposed financing efforts.

Absent acquisitions of additional products, product candidates or intellectual property, we believe our current cash balances are adequate to meet our cash needs for at least the next 24 months from the date of this filing. We expect operating expenses for the rest of the year to increase as we continue to expand our bioprocessing business. We expect to incur continued spending related to the development and expansion of our bioprocessing product lines and expansion of our commercial capabilities for the foreseeable future. Our future capital requirements may include, but are not limited to, purchases of property, plant and equipment, the acquisition of additional bioprocessing products and technologies to complement our existing manufacturing capabilities, and continued investment in our intellectual property portfolio.

We plan to continue to invest in our bioprocessing business and in key R&D activities associated with the development of new bioprocessing products. We actively evaluate various strategic transactions on an ongoing basis, including licensing or acquiring complementary products, technologies or businesses that would complement our existing portfolio. We continue to seek to acquire such potential assets that may offer us the best opportunity to create value for our shareholders. In order to acquire such assets, we may need to seek additional financing to fund these investments. If our available cash balances and anticipated cash flow from operations are insufficient to satisfy our liquidity requirements, including because of any such acquisition-related financing needs or lower demand for our products, we may seek to sell common or preferred equity or convertible debt securities, enter into a credit facility or another form of third-party funding, or seek other debt funding. The sale of equity and convertible debt securities may result in dilution to our shareholders, and those securities may have rights senior to those of our common shares. If we raise additional funds through the issuance of preferred stock, convertible debt

36

securities or other debt financing, these securities or other debt could contain covenants that would restrict our operations. Any other third-party funding arrangement could require us to relinquish valuable rights. We may require additional capital beyond our currently anticipated amounts. Additional capital may not be available on reasonable terms, if at all.

Off-Balance Sheet Arrangements

We do not have any special purpose entities or off-balance sheet financing arrangements as of September 30, 2021.

Net Operating Loss Carryforwards

At December 31, 2020, we had net operating loss carryforwards of $6.4 million remaining. We had business tax credits carryforwards of $9.4 million available to reduce future federal income taxes, if any. The business tax credits carryforwards will continue to expire at various dates through December 2039. Net operating loss carryforwards and available tax credits are subject to review and possible adjustment by the Internal Revenue Service, state and foreign jurisdictions and may be limited in the event of certain changes in the ownership interest of significant shareholders.

Effects of Inflation

Our assets are primarily monetary, consisting of cash, cash equivalents and marketable securities. Because of their liquidity, these assets are not directly affected by inflation. Since we intend to retain and continue to use our equipment, furniture and fixtures and leasehold improvements, we believe that the incremental inflation related to replacement costs of such items will not materially affect our operations. However, the rate of inflation affects our expenses, such as those for employee compensation and contract services, which could increase our level of expenses and the rate at which we use our resources.

Cautionary Statement Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements which are made pursuant to the safe harbor provisions of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). The forward-looking statements in this Quarterly Report on Form 10-Q do not constitute guarantees of future performance. Investors are cautioned that statements in this Quarterly Report on Form 10-Q which are not strictly historical statements, including, without limitation, express or implied statements or guidance regarding current or future financial performance and position, potential impairment of future earnings, management’s strategy, plans and objectives for future operations or acquisitions, product development and sales, product candidate research, development and regulatory approval, SG&A expenditures, intellectual property, development and manufacturing plans, availability of materials and product and adequacy of capital resources, our financing plans, and the projected impact of, and response to, the COVID-19 coronavirus pandemic and the related downturn of the U.S. and global economies constitute forward-looking statements. These forward-looking statements are based on current expectations, estimates, forecasts and projections about the industry and markets in which the Company operates, and management’s beliefs and assumptions. The Company undertakes no obligation to publicly update or revise the statements in light of future developments. In addition, other written and oral statements that constitute forward-looking statements may be made by the Company or on the Company’s behalf. Words such as “expect,” “seek,” “anticipate,” “intend,” “plan,” “believe,” “could,” “estimate,” “may,” “target,” “project,” or variations of such words and similar expressions are intended to identify forward-looking statements. Such forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially from those anticipated, including, without limitation, risks associated with the following: the ultimate impact of the coronavirus pandemic on our business or financial results; the success of current and future collaborative or supply relationships, including our agreements with Cytiva, MilliporeSigma and Purolite; our ability to successfully grow our bioprocessing business, including as a result of acquisitions, commercialization or partnership opportunities, and our ability to develop and commercialize products; our ability to obtain required regulatory approvals; our compliance with all U.S. Food and Drug Administration regulations, our ability to obtain, maintain and protect intellectual property rights for our products; the risk of litigation regarding our patent and other intellectual property rights; the risk of litigation with collaborative partners; our limited manufacturing capabilities and our dependence on third-party manufacturers and value-added resellers; the effect of the COVID-19 coronavirus pandemic, including mitigation efforts and economic effects, on our business operations and the operations of our customers and suppliers; our ability to hire and retain skilled personnel; the market acceptance of our products, reduced demand for our products that adversely impacts our future revenues, cash flows, results of operations and financial condition; our ability to integrate Non-Metallic Solutions,

37

Inc., ARTeSYN Biosolutions Holdings Ireland Limited, Polymem S.A. and Avitide, Inc. businesses successfully into our business and achieve the expected benefits of the acquisitions; our ability to compete with larger, better financed life sciences companies; our history of losses and expectation of incurring losses; our ability to generate future revenues; our ability to successfully integrate our recently acquired businesses; our ability to raise additional capital to fund potential acquisitions; our volatile stock price; and the effects of our anti-takeover provisions. Further information on potential risk factors that could affect our financial results are included in the filings made by us from time to time with the SEC including under the sections entitled “Risk Factors” in our Form 10-K.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Risk

We have historically held investments in commercial paper, U.S. Government and agency securities as well as corporate bonds and other debt securities. As a result, we have been exposed to potential loss from market risks that may occur as a result of changes in interest rates, changes in credit quality of the issuer or otherwise. We do not have any such investments as of September 30, 2021. As a result, a hypothetical 100 basis point increase in interest rates would have no effect on our cash position as of September 30, 2021.

We generally place our marketable security investments in high quality credit instruments, as specified in our investment policy guidelines. We believe that the conservative nature of our investments mitigates our interest rate exposure, and our investment policy limits the amount of our credit exposure to any one issue, issuer (with the exception of U.S. agency obligations) and type of instrument. We do not expect any material losses from our marketable security investments and therefore believe that our potential interest rate exposure is limited.

Foreign Exchange Risk

The reporting currency of the Company is U.S. dollars, and the functional currency of each of our foreign subsidiaries is its respective local currency. Our foreign currency exposures include the Swedish krona, Euro, British pound, Chinese yuan, Japanese yen, Singapore dollar, South Korean won and Indian rupee; of these, the primary foreign currency exposures are the Swedish krona, Euro and British pound. Exchange gains or losses resulting from the translation between the transactional currency and the functional currency are included in net income. Fluctuations in exchange rates may adversely affect our results of operations, financial position and cash flows. We currently do not seek to hedge this exposure to fluctuations in exchange rates.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

The Company’s management, with the participation of the principal executive officer and the principal financial officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based on such evaluation, the principal executive officer and principal financial officer have concluded that, as of the end of such period, the Company’s disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control

We acquired Polymem S.A. (“Polymem”) on July 1, 2021 and Avitide Inc. (“Avitide”) on September 20, 2021. The financial results of these acquisitions are included in our unaudited consolidated financial statements as of September 30, 2021 and for the quarter then ended. As these acquisitions occurred in the third quarter of 2021, the scope of our assessment of our internal control over financial reporting does not include Polymem and Avitide. These exclusions are in accordance with the Securities and Exchange Commission’s general guidance that an assessment of a recently acquired business may be omitted from our scope in the year of such acquisition.

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Other than the foregoing, there have been no changes in our internal control over financial reporting identified in connection with the evaluation required by paragraph (d) of Securities Exchange Act Rule 13a-15 or Rule 15d-15 that occurred in the three months ended September 30, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, we may be subject to legal proceedings and claims in the ordinary course of business. We are not currently aware of any such proceedings or claims that we believe will have, individually or in the aggregate, a material adverse effect on our business, financial condition or results of operations.

ITEM 1A. RISK FACTORS

The matters discussed in this Quarterly Report on Form 10-Q include forward-looking statements that involve risks or uncertainties. These statements are neither promises nor guarantees, but are based on various assumptions by management regarding future circumstances, over many of which Repligen has little or no control. A number of important risks and uncertainties, including those identified under the caption “Risk Factors” in Part I, Item 1A of our Form 10-K for the period ended December 31, 2020 and in subsequent filings, could cause our actual results to differ materially from those in the forward-looking statements. There are no material changes to the risk factors described in our Form 10-K for the period ended December 31, 2020.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Avitide Acquisition

Pursuant to the Merger Agreement described in Note 3, "Acquisitions," to the consolidated financial statements, on September 20, 2021, the Company issued 271,096 unregistered shares of the Company's common stock, totaling $77.6 million, as part of the consideration for the Avitide Acquisition. The issuance is not registered under the Securities Act of 1933, as amended, in reliance upon the exemption from registration provided by Rule 506(b) of Regulation D.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

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ITEM 6. EXHIBITS

(a)Exhibits

Exhibit Number	Document Description
3.1	Restated Certificate of Incorporation, dated June 30, 1992 and amended September 17, 1999 (filed as Exhibit 3.1 to Repligen Corporation’s Quarterly Report on Form 10-Q for the quarter ended September 30, 1999 and incorporated herein by reference).
3.2	Certificate of Amendment to the Certificate of Incorporation of Repligen Corporation, effective as of May 16, 2014 (filed as Exhibit 3.1 to Repligen Corporation’s Current Report on Form 8-K filed on May 19, 2014 and incorporated herein by reference).
3.3	Third Amended and Restated Bylaws (filed as Exhibit 3.1 to Repligen Corporation’s Current Report on Form 8-K filed on January 28, 2021 and incorporated herein by reference).
31.1 +	Rule 13a-14(a)/15d-14(a) Certification.
31.2 +	Rule 13a-14(a)/15d-14(a) Certification.
32.1 *	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS+	XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.
101.SCH+	Inline XBRL Taxonomy Extension Schema Document.
101.CAL+	Inline XBRL Taxonomy Extension Calculation Linkbase Document.
101.DEF+	Inline XBRL Taxonomy Extension Definition Linkbase Document.
101.LAB+	Inline XBRL Taxonomy Extension Label Linkbase Document.
101.PRE+	Inline XBRL Taxonomy Extension Presentation Linkbase Document.
104+	Cover Page Interactive Data File (formatted as Inline XBRL with applicable taxonomy extension information contained in Exhibits 101.*).

+ Filed herewith.

* Furnished herewith.

41

SIGNATURES

Pursuant to the requirements 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.

	REPLIGEN CORPORATION
Date: October 28, 2021	By:	/S/ TONY J. HUNT
		Tony J. Hunt
		President and Chief Executive Officer
		(Principal executive officer)
		Repligen Corporation
Date: October 28, 2021	By:	/S/ JON SNODGRES
		Jon Snodgres
		Chief Financial Officer
		(Principal financial officer)
		Repligen Corporation

42

EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO RULE 13a-14(a) / RULE 15d-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Tony J. Hunt, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Repligen Corporation;

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: October 28, 2021

/s/ TONY J. HUNT

Tony J. Hunt

President and Chief Executive Officer

(Principal executive officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO RULE 13a-14(a) / RULE 15d-14(a) OF THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED

I, Jon Snodgres, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Repligen Corporation;

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: October 28, 2021

/s/ JON SNODGRES

Jon Snodgres

Chief Financial Officer

(Principal financial officer)

EX-32.1

Exhibit 32.1*

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Repligen Corporation (the “Company”) on Form 10-Q for the period ending September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officers of the Company hereby certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to my knowledge, 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.

Date: October 28, 2021	By:	/S/ TONY J. HUNT
		Tony J. Hunt
		Chief Executive Officer and President
		(Principal executive officer)
Date: October 28, 2021	By:	/S/ JON SNODGRES
		Jon Snodgres
		Chief Financial Officer
		(Principal financial officer)

* This certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, or otherwise subject to the liability of that section, nor shall it be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934.

XML

Cover Page - shares	9 Months Ended
	Sep. 30, 2021	Oct. 25, 2021
Cover [Abstract]
Amendment Flag	false
Document Type	10-Q
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Entity Central Index Key	0000730272
Current Fiscal Year End Date	--12-31
Document Period End Date	Sep. 30, 2021
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Number	000-14656
Entity Registrant Name	REPLIGEN CORP
Entity Filer Category	Large Accelerated Filer
Trading Symbol	RGEN
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	04-2729386
Entity Address, Address Line One	41 Seyon Street, Bldg. 1, Suite 100
Entity Address, City or Town	Waltham
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02453
City Area Code	781
Entity Shell Company	false
Smaller reporting company	false
Emerging growth company	false
Local Phone Number	250-0111
Document Quarterly Report	true
Document Transition Report	false
Entity Common Stock, Shares Outstanding		55,288,528

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 621,098	$ 717,292
Accounts receivable, net of reserves of $1,214 and $762 at September 30, 2021 and December 31, 2020, respectively	122,048	71,389
Inventories, net	156,163	95,025
Prepaid expenses and other current assets	11,545	18,676
Total current assets	910,854	902,382
Property, plant and equipment, net	99,652	66,870
Intangible assets, net	340,163	287,100
Goodwill	833,559	618,305
Deferred tax assets	1,542	2,481
Operating lease right of use assets	55,007	25,176
Other noncurrent assets	620	573
Total noncurrent assets	1,330,543	1,000,505
Total assets	2,241,397	1,902,887
Current liabilities:
Accounts payable	28,194	16,880
Operating lease liability	5,528	5,254
Accrued liabilities	63,394	53,085
Convertible senior notes, current portion, net	252,323	243,737
Total current liabilities	349,439	318,956
Deferred tax liabilities	39,125	27,032
Noncurrent operating lease liability	55,909	26,425
Noncurrent contingent consideration	79,962	0
Other noncurrent liabilities	1,697	1,324
Total noncurrent liabilities	176,693	54,781
Total liabilities	526,132	373,737
Commitments and contingencies (Note 9)
Stockholders' equity:
Preferred stock, $0.01 par value, 5,000,000 shares authorized, no shares issued or outstanding
Common stock, $0.01 par value; 80,000,000 shares authorized; 55,283,988 shares at September 30, 2021 and 54,760,837 shares at December 31, 2020 issued and outstanding	553	548
Additional paid-in capital	1,559,681	1,460,748
Accumulated other comprehensive (loss) income	(9,919)	2,085
Retained earnings	164,950	65,769
Total stockholders' equity	1,715,265	1,529,150
Total liabilities and stockholders' equity	$ 2,241,397	$ 1,902,887

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Accounts receivable, reserve for doubtful accounts	$ 1,214	$ 762
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	80,000,000	80,000,000
Common stock, shares issued	55,283,988	54,760,837
Common stock, shares outstanding	55,283,988	54,760,837

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue:
Revenue	$ 178,216	$ 94,060	$ 484,013	$ 257,612
Costs and operating expenses:
Cost of product revenue	75,495	39,626	197,232	108,471
Research and development	9,154	4,422	25,155	13,460
Selling, general and administrative	48,373	29,051	131,809	83,277
Total costs and operating expenses	133,022	73,099	354,196	205,208
Income from operations	45,194	20,961	129,817	52,404
Other income (expenses):
Investment income	44	82	137	1,699
Interest expense	(3,220)	(3,052)	(9,470)	(9,032)
Other expenses	(786)	(248)	(1,789)	(632)
Other expenses, net	(3,962)	(3,218)	(11,122)	(7,965)
Income before income taxes	41,232	17,743	118,695	44,439
Income tax provision	7,734	3,191	19,514	4,211
Net income	$ 33,498	$ 14,552	$ 99,181	$ 40,228
Earnings per share:
Basic	$ 0.61	$ 0.28	$ 1.81	$ 0.77
Diluted	$ 0.58	$ 0.27	$ 1.74	$ 0.75
Weighted average common shares outstanding:
Basic	55,015	52,545	54,918	52,341
Diluted	57,368	53,469	57,072	53,300
Net income	$ 33,498	$ 14,552	$ 99,181	$ 40,228
Other comprehensive income (loss):
Foreign currency translation adjustment	(5,550)	4,390	(12,004)	5,304
Comprehensive income	27,948	18,942	87,177	45,532
Products
Revenue:
Revenue	178,177	94,029	483,834	257,521
Royalty and other revenue
Revenue:
Revenue	$ 39	$ 31	$ 179	$ 91

XML

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	True Up Costs December 2020	Avitide, Inc.	Common Stock	Common Stock Avitide, Inc.	Additional Paid-In Capital	Additional Paid-In Capital True Up Costs December 2020	Additional Paid-In Capital Avitide, Inc.	Accumulated Other Comprehensive Income (Loss)	Retained Earnings
Beginning Balance at Dec. 31, 2019	$ 1,059,768			$ 521		$ 1,068,431			$ (15,027)	$ 5,843
Beginning Balance (in shares) at Dec. 31, 2019				52,078,258
Net income	40,228									40,228
Exercise of stock options and vesting of stock units	7,078			$ 5		7,073
Exercise of stock options and vesting of stock units (in shares)				528,442
Stock-based compensation expense	12,492					12,492
Translation adjustment at Dec. 31, 2019	5,304								5,304
Ending Balance at Sep. 30, 2020	1,124,870			$ 526		1,087,996			(9,723)	46,071
Ending Balance (in shares) at Sep. 30, 2020				52,606,700
Beginning Balance at Jun. 30, 2020	1,100,027			$ 525		1,082,096			(14,113)	31,519
Beginning Balance (in shares) at Jun. 30, 2020				52,494,884
Net income	14,552									14,552
Exercise of stock options and vesting of stock units	1,676			$ 1		1,675
Exercise of stock options and vesting of stock units (in shares)				111,816
Stock-based compensation expense	4,225					4,225
Translation adjustment at Jun. 30, 2020	4,390								4,390
Ending Balance at Sep. 30, 2020	1,124,870			$ 526		1,087,996			(9,723)	46,071
Ending Balance (in shares) at Sep. 30, 2020				52,606,700
Beginning Balance at Dec. 31, 2020	1,529,150			$ 548		1,460,748			2,085	65,769
Beginning Balance (in shares) at Dec. 31, 2020				54,760,837
Net income	99,181									99,181
Issuance of common stock for debt conversion	2			$ 0		2
Issuance of common stock for debt conversion (in shares)				7
Exercise of stock options and vesting of stock units	1,991			$ 2		1,989
Exercise of stock options and vesting of stock units (in shares)				257,387
Issuance of common stock		$ 145	$ 77,576		$ 3		$ 145	$ 77,573
Issuance of commons stock (in shares)					271,096
Tax withholding on vesting of restricted stock units	(1,252)			$ 0		(1,252)
Tax withholding on vesting of restricted stock units (in shares)				(5,339)
Stock-based compensation expense	20,476					20,476
Translation adjustment at Dec. 31, 2020	(12,004)								(12,004)
Ending Balance at Sep. 30, 2021	1,715,265			$ 553		1,559,681			(9,919)	164,950
Ending Balance (in shares) at Sep. 30, 2021				55,283,988
Beginning Balance at Jun. 30, 2021	1,603,069			$ 550		1,475,436			(4,369)	131,452
Beginning Balance (in shares) at Jun. 30, 2021				54,969,481
Net income	33,498									33,498
Issuance of common stock for debt conversion	1			$ 0		1
Issuance of common stock for debt conversion (in shares)				4
Exercise of stock options and vesting of stock units	1,131			$ 0		1,131
Exercise of stock options and vesting of stock units (in shares)				48,746
Issuance of common stock			$ 77,576		$ 3			$ 77,573
Issuance of commons stock (in shares)					271,096
Tax withholding on vesting of restricted stock units	(1,252)			$ 0		(1,252)
Tax withholding on vesting of restricted stock units (in shares)				(5,339)
Stock-based compensation expense	6,792					6,792
Translation adjustment at Jun. 30, 2021	(5,550)								(5,550)
Ending Balance at Sep. 30, 2021	$ 1,715,265			$ 553		$ 1,559,681			$ (9,919)	$ 164,950
Ending Balance (in shares) at Sep. 30, 2021				55,283,988

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net income	$ 99,181	$ 40,228
Adjustments to reconcile net income to net cash provided by operating activities:
Inventory step-up amortization	1,868
Depreciation and amortization	27,430	19,581
Amortization of debt discount and issuance costs	8,592	8,175
Stock-based compensation expense	20,476	12,492
Deferred income taxes, net	6,071	72
Other	677	228
Changes in operating assets and liabilities, excluding impact of acquisitions:
Accounts receivable	(51,927)	(11,358)
Unbilled receivables	23	(456)
Inventories	(61,598)	(22,767)
Prepaid expenses and other assets	471	(2,908)
Other assets	751	(260)
Accounts payable	8,968	3,317
Accrued expenses	10,051	(2,712)
Long-term liabilities	(1,592)	3,210
Total cash provided by operating activities	69,396	47,754
Cash flows from investing activities:
Acquisitions, net of cash acquired	(120,979)	(28,445)
Additions to capitalized software costs	(2,945)	(3,585)
Purchases of property, plant and equipment	(34,969)	(11,067)
Total cash used in investing activities	(158,893)	(43,097)
Cash flows from financing activities:
Proceeds from exercise of stock options	1,991	7,088
Payment of tax withholding obligation on vesting of restricted stock	(1,252)	(10)
Repayment of convertible senior notes	(9)
Total cash provided by financing activities	730	7,078
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(7,427)	4,160
Net (decrease) increase in cash, cash equivalents and restricted cash	(96,194)	15,895
Cash, cash equivalents and restricted cash, beginning of period	717,292	537,407
Cash and cash equivalents, end of period	621,098	553,302
Supplemental disclosure of non-cash investing and financing activities:
Assets acquired under operating leases	32,518	1,456
Avitide, Inc.
Supplemental disclosure of non-cash investing and financing activities:
Fair value of common stock issued for acquisition	77,576
Fair value of earnouts related to acquisition	$ 79,962

XML

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - shares		9 Months Ended
	Sep. 16, 2021	Sep. 30, 2021
Avitide, Inc.
Shares of common stock issued for acquisition	271,096	271,096

XML

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Summary of Significant Accounting Policies

1.Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements included herein have been prepared by Repligen Corporation (the “Company”, “Repligen”, “our” or “we”) in accordance with generally accepted accounting principles in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”), for Quarterly Reports on Form 10-Q and Article 10 of Regulation S-X and do not include all of the information and footnote disclosures required by GAAP. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, which was filed with the SEC on February 24, 2021 (“Form 10-K”).

The preparation of financial statements in conformity with 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. The business and economic uncertainty resulting from the novel coronavirus (“COVID-19”) pandemic has made such estimates more difficult to calculate. Accordingly, actual results could differ from those estimates.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Repligen Sweden AB, Repligen GmbH, Spectrum® LifeSciences LLC and its subsidiaries (“Spectrum”), C Technologies, Inc. (“C Technologies”), Non-Metallic Solutions, Inc. (“NMS”), ARTeSYN Biosolutions Holdings Ireland Limited (“ARTeSYN”), Polymem S.A. (“Polymem”), Avitide, Inc. (“Avitide”) and Repligen Singapore Pte. Ltd. All significant intercompany accounts and transactions have been eliminated in consolidation.

The Company made no material changes in the application of its significant accounting policies that were disclosed in its Form 10-K. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting of only normal, recurring adjustments necessary for a fair presentation of the financial position, results of operations and cash flows. The results of operations for the interim periods presented are not necessarily indicative of results to be expected for the entire year. Certain prior year balances have been reclassified to conform to current year presentation.

Recent Accounting Standards Updates

We consider the applicability and impact of all Accounting Standards Updates (“ASUs” or “ASU”) on the Company’s consolidated financial statements. Updates not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company’s consolidated financial position or results of operations. Recently issued ASUs that we feel may be applicable to the Company are as follows:

Recently Issued Accounting Standard Updates – Not Yet Adopted

In August 2020, the Financial Accounting Standards Board (“FASB”) issued ASU 2020-06, “Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40).” ASU 2020-06 simplifies the accounting for convertible debt instruments and convertible preferred stock by reducing the number of accounting models and the number of embedded conversion features that could be recognized separately from the primary contract. ASU 2020-06 also enhances transparency and improves disclosures for convertible instruments and earnings per share guidance. ASU 2020-06 is effective for annual reporting periods beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. This update permits the use of either the modified retrospective or fully retrospective method of transition. The Company is currently evaluating the impact of the adoption of ASU 2020-06 on the Company's consolidated financial statements. 

XML

Fair Value Measurements

9 Months Ended

Sep. 30, 2021

Fair Value Measurements

2.Fair Value Measurements

The Company uses various valuation approaches in determining the fair value of its assets and liabilities. The Company employs a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the inputs that market participants would use in pricing the asset or liability and are developed based on the best information available in the circumstances. The fair value hierarchy is broken down into three levels based on the source of inputs as follows:

Level 1 –	Valuations based on unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access.
Level 2 –	Valuations based on quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active and models for which all significant inputs are observable, either directly or indirectly.
Level 3 –	Valuations based on inputs that are unobservable and significant to the overall fair value measurement.

The availability of observable inputs can vary among the various types of financial assets and liabilities. To the extent that the valuation is based on models or inputs that are less observable or unobservable in the market, the determination of fair value requires more judgment. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for financial statement disclosure purposes, the level in the fair value hierarchy within which the fair value measurement is categorized is based on the lowest level input that is significant to the overall fair value measurement.

Fair Value Measured on a Recurring Basis

Financial assets and financial liabilities measured at fair value on a recurring basis consist of the following as of September 30, 2021 and December 31, 2020:

	As of September 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	448,908	$	—	$	—	$	448,908
Liabilities:
Contingent consideration - earnout obligation	$	—	$	—	$	79,962	$	79,962

	As of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	549,030	$	—	$	—	$	549,030

Cash and cash equivalents

As of September 30, 2021 and December 31, 2020, cash and cash equivalents on the Company's consolidated balance sheets included $448.9 million and $549.0 million, respectively, in money market accounts. These funds are valued on a recurring basis using Level 1 inputs.

Contingent Consideration – Earnout

On September 20, 2021, the Company completed the acquisition of Avitide (the "Avitide Acquisition"), a privately-held affinity ligand discovery and development company headquartered in Lebanon, New Hampshire. The transaction consisted of upfront payments of $150.0 million and up to an additional $125.0 million (undiscounted) in contingent consideration earnout payments made equally in cash and the Company's common stock over a three-year performance period beginning January 1, 2022 and ending December 31, 2024. Refer to Note 3, "Acquisitions" below for additional information.

A reconciliation of the change in the fair value of contingent consideration - earnout is included in the following table (amounts in thousands):

Balance as of December 31, 2020	$	—
Acquisition date fair value of contingent consideration - earnout		79,962
Change in fair value		—
Balance as of September 30, 2021	$	79,962

The recurring Level 3 fair value measurement of our contingent consideration earnout that we expect to be required to settle include the following significant unobservable inputs:

Contingent Consideration Earnout	Fair Value as of September 20, 2021 (amounts in thousands)		Valuation Technique	Unobservable Input	Range	Weighted Average(1)
				Probability of
Commercialization-based			Monte Carlo	Success	100%	100%
payments	$	28,553	Simulation	Earnout Discount Rate	1.4%-2.6%	2%
				Volatility	32.8%	32.8%
Revenue and Volume-			Monte Carlo	Revenue & Volume
based payments	$	51,409	Simulation	Discount Rate	9.4%	9.4%
				Earnout Discount Rate	1.4%-2.6%	2%

(1)Unobservable inputs were weighted by the relative fair value of the contingent consideration liability.

The Company estimates the fair value of the contingent consideration earnouts at each subsequent reporting period using a Monte Carlo simulation. Changes in the projected performance of the acquired business could result in a higher or lower contingent consideration obligation in the future.

There were no changes in revenue projections during the period from September 20, 2021, the date of the Avitide Acquisition, and September 30, 2021 that would cause a material change in amounts reported as of September 30, 2021.

Fair Value Measured on a Nonrecurring Basis

During the nine months ended September 30, 2021, there were no re-measurements to fair value of financial assets and liabilities that are measured at fair value on a nonrecurring basis.

Convertible Senior Notes

In July 2019, the Company issued $287.5 million aggregate principal amount of the Company’s 0.375% convertible senior notes due July 15, 2024 (the “2019 Notes”). Interest is payable semi-annually in arrears on January 15 and July 15 of each year. The 2019 Notes will mature on July 15, 2024, unless earlier converted or repurchased in accordance with their terms. At September 30, 2021 and December 31, 2020, the carrying value of the 2019 Notes was $252.3 million and $243.7 million, respectively, net of unamortized discount, and the fair value of the 2019 Notes was $732.9 million and $501.0 million, respectively. The fair value of the 2019 Notes is a Level 1 valuation and was determined based on the most recent trade activity of the 2019 Notes as of September 30, 2021. The 2019 Notes are discussed in more detail in Note 12, “Convertible senior notes” to Part II, Item 8, “Financial Statements and Supplementary Data” to our 2020 Annual Report on Form 10-K (“Form 10-K"), which was filed with the SEC on February 24, 2021.

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Acquisitions

9 Months Ended

Sep. 30, 2021

Business Combination and Asset Acquisition [Abstract]

Acquisitions

3.Acquisitions

2021 Acquisitions

Avitide, Inc.

On September 16, 2021, the Company entered into an Agreement and Plan of Merger and Reorganization (“Merger Agreement”) with Avalon Merger Sub, Inc., a Delaware corporation and a wholly owned direct subsidiary of the Company (“First Merger Sub”), Avalon Merger Sub LLC, a Delaware limited liability company and a wholly owned direct subsidiary of the Company (“Second Merger Sub” and together with First Merger Sub, the “Merger Subs”), Avitide, Inc., a Delaware corporation, and Shareholder Representative Services LLC, a Colorado limited liability company, solely in its capacity as the representative, agent and attorney-in-fact of Avitide's securityholders (the “Securityholder Representative”) to purchase Avitide. The transaction closed on September 20, 2021 and on the terms set forth in the Merger Agreement.

Avitide, which is headquartered in Lebanon, New Hampshire, offers diverse libraries and leading technology in affinity ligand discovery and development resulting in best-in-class ligand discovery and development lead-times. The acquisition gives the Company a new platform for affinity resin development, including gene therapy, and advances and expands the Company’s proteins and chromatography franchise to address the unique purification needs of gene therapies and other emerging modalities.

Consideration Transferred

The Avitide Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations” and engaged a third-party valuation firm to assist with the valuation of the business acquired. Under the terms of the Merger Agreement, all outstanding shares of capital stock of Avitide were cancelled and converted into the right to receive merger consideration with a value totaling up to $275.0 million, which consisted of upfront payments in aggregate of $150.0 million ($149.4 million, net of cash acquired) and up to an additional $125.0 million (undiscounted) in contingent consideration earnout payments if certain performance targets are achieved. Total consideration paid also included $0.8 million deposited into an escrow account against which the Company may make claims for indemnification. The Avitide Acquisition was funded through payment of $75.0 million in cash, the issuance of 271,096 unregistered shares of the Company’s common stock totaling $77.6 million and contingent consideration with fair value of approximately $80.0 million. Under the acquisition method of accounting, the assets acquired and liabilities assumed of Avitide were recorded as of the acquisition date, at their respective fair values, and consolidated with those of the Company. The fair value of the net liabilities assumed is estimated to be $5.2 million, the fair value of the intangible assets acquired is estimated to be $44.3 million, and the residual goodwill is estimated to be $193.5 million. The estimated consideration and preliminary purchase price information has been prepared using a preliminary valuation. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $0.6 million of transaction and integration costs associated with the Avitide Acquisition from the date of acquisition to September 30, 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

The preparation of the valuation required the use of significant assumptions and estimates. Critical estimates included, but were not limited to, future expected cash flows, including projected revenues and expenses, and the applicable discount rates. These estimates were based on assumptions that the Company believes to be reasonable. However, actual results may differ from these estimates.

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	75,004
Equity consideration		77,576
Contingent consideration - earnout		79,962
Fair value of net assets acquired	$	232,542

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. The fair value of the contingent consideration – earnout was measured using a Monte Carlo simulation. The purchase accounting for this acquisition is not finalized. As additional information becomes available, the Company may further revise its preliminary purchase price allocation, including the fair value of the contingent consideration - earnout during the remainder of the measurement period. Any such revisions or changes may have a material impact on our accounting treatment of the Avitide Acquisition. The final allocation may include changes to: (1)

deferred revenue; (2) inventory; (3) deferred tax liabilities, net; (4) allocations to intangible assets such as tradenames, developed technology and customer relationships as well as goodwill; (5) final consideration paid related to working capital adjustments; (6) noncurrent contingent consideration; and (7) other assets and liabilities.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	572
Accounts receivable		228
Inventory		400
Prepaid expenses and other current assets		114
Property and equipment		1,862
Operating lease right of use asset		2,459
Customer relationships		23,310
Developed technology		19,610
Trademark and tradename		1,150
Non-competition agreements		200
Goodwill		193,463
Accounts payable		(215	)
Accrued liabilities		(2,183	)
Operating lease liability		(782	)
Operating lease liability, long-term		(1,606	)
Long term deferred tax liability		(5,982	)
Other liabilities		(58	)
Fair value of net assets acquired	$	232,542

Acquired Goodwill

The goodwill of $193.5 million represents future economic benefits expected to arise from anticipated synergies from the integration of Avitide. These synergies include certain cost savings, operating efficiencies and other strategic benefits projected to be achieved as a result of the Avitide Acquisition. Substantially all of the goodwill recorded is expected to be nondeductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the Avitide Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	13 years	$	23,310
Developed technology	15 years		19,610
Trademark and tradename	18 years		1,150
Non-competition agreements	3 years		200
		$	44,270

Polymem S.A.

On June 22, 2021, the Company entered into a Stock Purchase Agreement with Polymem S.A. (“Polymem”), a company organized under the laws of France, and Jean-Michel Espenan and Franc Saux, acting together jointly and severally as the representatives of the sellers for approximately $47.0 million. The transaction closed on July 1, 2021 (the “Polymem Acquisition.”).

Polymem, which is headquartered in, Toulouse, France, is a manufacturer of hollow fiber membranes, membrane modules and systems for industrial and bioprocessing applications. Polymem products will complement and expand the Company’s portfolio of hollow fiber systems and consumables. The acquisition substantially increases Repligen’s membrane and module

manufacturing capacity and establishes a world-class center of excellence in Europe to address the accelerating global demand for these innovative products.

Consideration Transferred

The Company accounted for the Polymem Acquisition as a purchase of a business under ASC 805, “Business Combinations” and engaged a third-party valuation firm to assist with the valuation of the business acquired. Payment for the transaction was denominated in Euros but is reflected here in U.S. dollars for presentation purposes based on an exchange rate of 0.8437 as of July 1, 2021, the date of acquisition. Total consideration paid was approximately $47.0 million, which included approximately $4.3 million deposited into an escrow account against which the Company may make claims for indemnification. The fair value of the net assumed liabilities is approximately $2.2 million, the fair value of the intangible assets acquired is approximately $25.7 million, and the residual goodwill is approximately $23.5 million. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $1.9 million of transaction and integration costs associated with the Polymem Acquisition from the date of acquisition to September 30, 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. As additional information becomes available, the Company may further revise its preliminary purchase price allocation during the remainder of the measurement period (which will not exceed 12 months from July 1, 2021). Any such revisions or changes may have a material impact on our accounting treatment of the Polymem Acquisition.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	353
Net working capital (excluding cash and inventory      step-up)		375
Inventory step-up		543
Operating lease right of use assets		1,424
Property and equipment		3,145
Other assets		41
Customer relationships		17,234
Developed technology		7,545
Trademark and tradenames		557
Non-compete agreements		344
Goodwill		23,453
Operating lease liability		(1,253	)
Long term deferred tax liability		(6,646	)
Other long-term liabilities		(142	)
Fair value of net assets acquired	$	46,973

The preliminary purchase price allocation is subject to adjustment as purchase accounting is finalized. The final purchase price allocation will be determined upon completion of final valuation analysis and the fair value allocation of assets acquired and liabilities assumed could differ materially from the preliminary valuation analysis. The final allocation may include changes to: (1) deferred tax liabilities; (2) allocations to intangible assets such as tradenames, developed technology an customer relationships as well as goodwill; (3) final consideration related to working capital adjustments; and (4) other assets and liabilities

Acquired Goodwill

The goodwill of approximately $23.5 million represents future economic benefits expected to arise from anticipated synergies from the integration of Polymem. These synergies include certain cost savings, operating efficiencies and other strategic

benefits projected to be achieved as a result of the Polymem Acquisition. Substantially all of the goodwill recorded is expected to be nondeductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the Polymem Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	17,234
Developed technology	13 years		7,545
Trademark and tradename	14 years		557
Non-competition agreements	5 years		344
		$	25,680

2020 Acquisitions

ARTeSYN Biosolutions Holdings Ireland Limited

On October 27, 2020, the Company entered into an Equity and Asset Purchase Agreement with ARTeSYN, a company organized under the laws of Ireland, Third Creek Holdings LLC, a Nevada limited liability company (“Third Creek”), Alphinity, LLC, a Nevada limited liability company (“Alphinity”, and together with Third Creek the “ARTeSYN Sellers”), and Michael Gagne, solely in his capacity as the representative of the ARTeSYN Sellers, pursuant to which the Company acquired (i) all of the outstanding equity securities of ARTeSYN and (ii) certain assets from Alphinity related to the business of ARTeSYN (collectively, the “ARTeSYN Acquisition”) for approximately $200 million, comprised of approximately $130 million in cash to the ARTeSYN Sellers and approximately $70 million in the Company’s common stock to Third Creek. The transaction closed on December 3, 2020.

ARTeSYN is headquartered in Waterford, Ireland and conducts its operations in Ireland, the United States and Estonia. Its suite of single-use solutions has been created with the goal of enabling “abundance in medicine” by allowing greater efficiency in biologics manufacturing. The ARTeSYN team has created a number of solutions targeting the single-use space from single-use valves with fully disposable valve liners, XO® skeletal supports, a hybrid small parts offering for de-bottlenecking traditional facilities, and fully automated SU process systems that have quickly become leading solutions in the bioprocessing industry. ARTeSYN has established downstream processing leadership with a suite of state of the art single-use systems for chromatography, filtration, continuous manufacturing and media/buffer prep workflows. In addition, the Company has integrated unique flow path assemblies utilizing the Company’s silicone extrusion and molding technology, to deliver highly differentiated, low hold-up volume systems that minimize product loss during processing. The ARTeSYN portfolio expands on the market success of the Company’s hollow fiber systems and complements its chromatography and TFF filtration product lines.

Consideration Transferred

The ARTeSYN Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations”. The ARTeSYN Acquisition was funded through payment of $130.7 million in cash, as well as issuance of 372,990 unregistered shares of the Company’s common stock totaling $69.4 million, contingent consideration of approximately $1.5 million, and settlement of preexisting invoices with the Company of approximately $2.3 million, for a total purchase price of $204.0 million. Under the acquisition method of accounting, the assets acquired and liabilities assumed of ARTeSYN were recorded as of the acquisition date, at their respective fair values, and consolidated with those of the Company. The fair value of the net tangible assets acquired is estimated to be $8.0 million, the fair value of the intangible assets acquired is estimated to be $67.4 million, and the residual goodwill is estimated to be $128.6 million. The estimated consideration and purchase price information was prepared using a valuation. Payment of the final consideration for working capital was made in April 2021.

The preparation of the valuation required the use of significant assumptions and estimates. Critical estimates included, but were not limited to, future expected cash flows, including projected revenues and expenses, and the applicable discount rates. These

estimates were based on assumptions that the Company believes to be reasonable. However, actual results may differ from these estimates.

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	130,713
Equity consideration		69,422
Contingent consideration		1,548
Settlement of preexisting liabilities		2,310
Fair value of net assets acquired	$	203,993

Acquisition related costs are not included as a component of consideration transferred but are expensed in the periods in which the costs are incurred. The Company incurred $4.0 million in transaction and integration costs associated with the ARTeSYN Acquisition from the date of acquisition to December 31, 2020, and an additional $3.4 million of transaction and integration costs during 2021. The transaction costs are included in operating expenses in the consolidated statements of comprehensive income for the period ended September 30, 2021.

The consideration transferred includes approximately $1.5 million related to consideration that was deferred at the acquisition date, with payment to the ARTeSYN Sellers contingent upon recognizing revenue on a large-scale system within 120 days of the acquisition date. This consideration is recorded at its estimated fair value as of the acquisition date, which includes the assumption of high probability of such revenue being recognized.

Fair Value of Net Assets Acquired

The preliminary allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. As additional information becomes available, the Company may further revise its preliminary purchase price allocation during the remainder of the measurement period (which will not exceed 12 months from December 3, 2020). Any such revisions or changes may be material. The final allocation may include changes to deferred tax liabilities, net and goodwill. Upon conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments will be recorded to our consolidated statements of comprehensive income. During 2021, the Company recorded net working capital adjustments of $0.1 million related to settlement of pre-acquisition liabilities, which offset goodwill in the table below.

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	2,982
Accounts receivable		4,811
Inventory		8,592
Prepaid expenses and other current assets		5,561
Property and equipment		1,836
Operating lease right of use asset		1,611
Other noncurrent assets		26
Customer relationships		38,400
Developed technology		27,060
Trademark and tradename		1,630
Non-competition agreements		300
Goodwill		128,598
Accounts payable		(2,251	)
Accrued liabilities		(8,706	)
Deferred revenue		(3,583	)
Deferred tax liabilities, net		(1,240	)
Notes payable		(24	)
Operating lease liability		(417	)
Operating lease liability, long-term		(1,193	)
Fair value of net assets acquired	$	203,993

Acquired Goodwill

The goodwill of $128.6 million represents future economic benefits expected to arise from synergies from combining operations and commercial organizations to increase market presence and the extension of existing customer relationships. Substantially all of the goodwill recorded is expected to be deductible for income tax purposes.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the ARTeSYN Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	17 years	$	38,400
Developed technology	15 years		27,060
Trademark and tradename	21 years		1,630
Non-competition agreements	3 years		300
		$	67,390

Non-Metallic Solutions, Inc.

On October 15, 2020, the Company entered into a Stock Purchase Agreement with NMS, a Massachusetts corporation, and each of William Malloneé and Derek Masser, the legal and beneficial owners of NMS, to purchase NMS, which transaction subsequently closed on October 20, 2020 (the “NMS Acquisition”).

NMS, headquartered in Auburn, Massachusetts, is a manufacturer of fabricated plastics, custom containers, and related assemblies and components used in the manufacturing of biologic drugs. The acquisition of NMS allows Repligen to expand its line of single-use systems and associated integrated flow path assemblies and streamline the supply chain for current products, providing more flexibility to scale and expand the Company's single-use and systems portfolios.

Consideration Transferred

The NMS Acquisition was accounted for as a purchase of a business under ASC 805, “Business Combinations.” Total consideration paid was $16.1 million, which included $1.3 million deposited into an escrow account against which the Company may make claims for indemnification. The fair value of the net tangible assets acquired was $0.9 million, the fair value of the intangible assets acquired was $8.5 million, and the residual goodwill was $6.7 million. Acquisition-related costs are not included as a component of consideration transferred but are expensed in the periods in which costs are incurred. The Company incurred $0.2 million of transaction and integration costs associated with the NMS Acquisition from the date of acquisition to December 31, 2020, and $0.4 million for the nine months ended September 30, 2021. The transaction costs are included in SG&A expenses in the consolidated statements of comprehensive income.

Fair Value of Net Assets Acquired

The allocation of purchase price is based on the fair value of assets acquired and liabilities assumed as of the acquisition date, based on the preliminary valuation. We have made appropriate adjustments to the purchase price allocation during the measurement period, which ended on October 20, 2021.

The components and allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	1,163
Accounts receivable		415
Inventory		334
Prepaid expenses and other current assets		13
Property and equipment		73
Operating lease right of use asset		194
Customer relationships		6,370
Developed technology		1,810
Trademark and tradename		190
Non-competition agreements		90
Goodwill		6,713
Deferred tax assets		24
Accounts payable		(96	)
Accrued liabilities		(999	)
Operating lease liability		(136	)
Operating lease liability, long-term		(59	)
Fair value of net assets acquired	$	16,099

Acquired Goodwill

The goodwill of $6.7 million represents future economic benefits expected to arise from anticipated synergies from the integration of NMS. These synergies include certain cost savings, operating efficiencies and other strategic benefits projected to be achieved as a result of the NMS Acquisition. Substantially all of the goodwill recorded is expected to be deductible for income tax purposes. In February 2021, the Company recorded an adjustment to goodwill of $0.1 million related to the finalization of the working capital true-up.

Intangible Assets

The following table sets forth the components of the identified intangible assets associated with the NMS Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	6,370
Developed technology	12 years		1,810
Trademark and tradename	15 years		190
Non-competition agreements	3 years		90
		$	8,460

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Revenue Recognition

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Revenue Recognition

4.Revenue Recognition

The Company generates revenue from the sale of bioprocessing products, equipment devices, and related consumables used with these equipment devices to customers in the life science and biopharmaceutical industries. Under ASC 606, “Revenue from Contracts with Customers,” revenue is recognized when, or as, obligations under the terms of a contract are satisfied, which occurs when control of the promised products or services is transferred to customers.

Disaggregation of Revenue

Revenues for the three and nine months ended September 30, 2021 and 2020 were as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Product revenue	$	178,177	$	94,029	$	483,834	$	257,521
Royalty and other income		39		31		179		91
Total revenue	$	178,216	$	94,060	$	484,013	$	257,612

When disaggregating revenue, the Company considered all of the economic factors that may affect its revenues. Because all of its revenues are from bioprocessing customers, there are no differences in the nature, timing and uncertainty of the Company’s revenues and cash flows from any of its product lines. However, given that the Company’s revenues are generated in different geographic regions, factors such as regulatory and geopolitical factors within those regions could impact the nature, timing and uncertainty of the Company’s revenues and cash flows. In addition, a significant portion of the Company’s revenues is generated from a small number of customers; therefore, economic factors specific to these customers could impact the nature, timing and uncertainty of the Company’s revenues and cash flows.

Disaggregated revenue from contracts with customers by geographic region can be found in Note 14, “Segment Reporting,” included in this report.

Revenue from customers that represented 10% or more of the Company’s total revenue for the three months ended September 30, 2021 and 2020 came from sales to Pfizer Inc. during the three months ended September 30, 2021, which generated $19.1 million, or 11% of the Company's total revenue for the period. Revenue from customers that represented 10% or more of the Company's total revenue for the nine months ended September 30, 2021 and 2020 came from sales to MilliporeSigma during the nine months ended September 30, 2020, which generated $29.4 million in revenue, or 11% of the Company's total revenue for the period. There was no revenue from customers that represented 10% or more of the Company's total revenue for the other periods presented.

For more information regarding our product revenue, see Note 5, “Revenue Recognition” included in Part II, Item 8, “Financial Statements and Supplementary Data” to our Form 10-K.

Contract Balances from Contracts with Customers

The following table provides information about receivables and deferred revenue from contracts with customers as of September 30, 2021 (amounts in thousands):

	2021
Balances from contracts with customers only:
Accounts receivable, net of reserves	$	122,048
Deferred revenue (included in accrued liabilities in the consolidated balance sheets)	$	16,337
Revenue recognized during the nine-month period ended September 30, 2021 relating to:
The beginning deferred revenue balance	$	13,071

The timing of revenue recognition, billings and cash collections results in the accounts receivable and deferred revenue balances on the Company’s consolidated balance sheets.

A contract asset is created when the Company satisfies a performance obligation by transferring a promised good to the customer. Contract assets may represent conditional or unconditional rights to consideration. The right is conditional and recorded as a contract asset, if the Company must first satisfy another performance obligation in the contract before it is entitled to payment from the customer. Contract assets are transferred to billed receivables once the right becomes unconditional. If the Company has the unconditional right to receive consideration from the customer, the contract asset is accounted for as a billed receivable and presented separately from other contract assets. A right is unconditional if nothing other than the passage of time is required before payment of that consideration is due.

When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded. Contract liabilities are recognized as revenue after control of the products or services is transferred to the customer and all revenue recognition criteria have been met.

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2021

Goodwill And Other Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

5.Goodwill and Intangible Assets

Goodwill

Goodwill represents the difference between the purchase price and the estimated fair value of identifiable assets acquired and liabilities assumed. Goodwill acquired in a business combination and determined to have an indefinite useful life is not

amortized, but instead is tested for impairment at least annually in accordance with ASC 350, “Intangibles – Goodwill and Other”. The following table represents the change in the carrying value of goodwill for the nine months ended September 30, 2021 (amounts in thousands):

Balance at December 31, 2020	$	618,305
Measurement period adjustment - NMS		(71	)
Measurement period adjustments - ARTeSYN		(60	)
Acquisition of Polymem		23,453
Acquisition of Avitide		193,463
Cumulative translation adjustment		(1,531	)
Balance at September 30, 2021	$	833,559

During each of the fourth quarters of 2020, 2019 and 2018, the Company completed its annual impairment assessments and concluded that goodwill was not impaired in any of those years. The Company has not identified any “triggering” events which indicate an impairment of goodwill in the three and nine months ended September 30, 2021.

Intangible Assets

Intangible assets with a definitive life are amortized over their useful lives using the straight-line method, and the amortization expense is recorded within cost of product revenue and SG&A expenses in the Company’s statements of comprehensive income. Intangible assets and their related useful lives are reviewed at least annually to determine if any adverse conditions existed that would indicate the carrying value of these assets may not be recoverable. More frequent impairment assessments are conducted if certain conditions exist, including a change in the competitive landscape, any internal decisions to pursue new or different technology strategies, a loss of a significant customer, or a significant change in the marketplace, including changes in the prices paid for our products or changes in the size of the market for the Company’s products. An impairment results if the carrying value of the asset exceeds the estimated fair value of the asset. If the estimate of an intangible asset’s remaining useful life is changed, the remaining carrying amount of the intangible asset is amortized prospectively over the revised remaining useful life. The Company continues to believe that its intangible assets are recoverable at September 30, 2021.

Indefinite-lived assets are reviewed for impairment at least annually. There has been no impairment of the Company’s intangible assets for the periods presented.

Intangible assets, net consisted of the following at September 30, 2021:

	September 30, 2021
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	141,039	$	(19,426	)	$	121,613		17
Patents		240		(240	)		—		8
Customer relationships		257,297		(47,363	)		209,934		15
Trademarks		7,367		(771	)		6,596		19
Other intangibles		2,826		(1,506	)		1,320		4
Total finite-lived intangible assets		408,769		(69,306	)		339,463		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	409,469	$	(69,306	)	$	340,163

Intangible assets consisted of the following at December 31, 2020:

	December 31, 2020
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	114,217	$	(14,444	)	$	99,773		17
Patents		240		(240	)		—		8
Customer relationships		217,790		(37,333	)		180,457		16
Trademarks		5,893		(541	)		5,352		20
Other intangibles		2,142		(1,324	)		818		3
Total finite-lived intangible assets		340,282		(53,882	)		286,400		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	340,982	$	(53,882	)	$	287,100

Amortization expense for finite-lived intangible assets was $5.7 million and $4.0 million for each of the three months ended September 30, 2021 and 2020, respectively, and $16.1 million and $11.8 million for each of the nine months ended September 30, 2021 and 2020, respectively. As of September 30, 2021, the Company expects to record the following amortization expense in future periods (amounts in thousands):

	Estimated
	Amortization
For the Nine Months Ended September 30,	Expense
2021 (remaining three months)	$	7,004
2022		25,840
2023		25,722
2024		25,088
2025		24,821
2026 and thereafter		230,988
Total	$	339,463

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Consolidated Balance Sheet Detail

9 Months Ended

Sep. 30, 2021

Consolidated Balance Sheet Detail

6.Consolidated Balance Sheet Detail

Inventories, net

Inventories, net consists of the following:

	September 30,		December 31,
	2021		2020
	(Amounts in thousands)
Raw materials	$	105,157	$	48,746
Work-in-process		7,860		8,084
Finished products		43,146		38,195
Total inventories, net	$	156,163	$	95,025

Property, Plant and Equipment

Property, plant and equipment consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Land	$	1,023		$	1,023
Buildings		764			1,007
Leasehold improvements		51,778			31,331
Equipment		65,764			43,072
Furniture, fixtures and office equipment		8,355			8,714
Computer hardware and software		21,436			15,397
Construction in progress		14,723			14,927
Other		497			455
Total property, plant and equipment		164,340			115,926
Less - Accumulated depreciation		(64,688	)		(49,056	)
Total property, plant and equipment, net	$	99,652		$	66,870

Depreciation expenses totaled $4.3 million and $2.8 million for each of the three months ended September 30, 2021 and 2020, respectively, and $11.3 million and $7.8 million for each of the nine months ended September 30, 2021 and 2020, respectively.

Accrued Liabilities

Accrued liabilities consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Employee compensation	$	34,056		$	20,288
Income taxes payable		8,435			1,423
Royalty and license fees		1,497			466
Warranties		1,759			1,576
Professional fees		2,179			1,425
Deferred revenue		16,337			15,318
Other		(869	)		12,589
Total accrued liabilities	$	63,394		$	53,085

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Convertible Senior Notes

9 Months Ended

Sep. 30, 2021

Convertible Senior Notes

7.Convertible Senior Notes

0.375% Convertible Senior Notes due 2024

On July 19, 2019, the Company issued $287.5 million aggregate principal pursuant to the 2019 Notes, which includes the underwriters’ exercise in full of an option to purchase an additional $37.5 million aggregate principal amount of 2019 Notes (the “Notes Offering”). The net proceeds of the Notes Offering, after deducting underwriting discounts and commissions and other related offering expenses payable by the Company, were approximately $278.5 million. The 2019 Notes are senior, unsecured obligations of the Company, and bear interest at a rate of 0.375% per year. Interest is payable semi-annually in arrears on January 15 and July 15 of each year, beginning on January 15, 2020. The 2019 Notes will mature on July 15, 2024, unless earlier repurchased or converted in accordance with their terms.

During the third quarter of 2021, the closing price of the Company’s common stock exceeded 130% of the conversion price of the 2019 Notes for more than 20 trading days of the last 30 consecutive trading days of the quarter. As a result, the 2019 Notes are convertible at the option of the holders of the 2019 Notes during the fourth quarter of 2021, the quarter immediately following the quarter when the conditions are met, as stated in the terms of the 2019 Notes. These conditions have been met since the third quarter of 2020. As a result, $6,000 aggregate principal amount of the 2019 Notes have been converted by the noteholders since December 31, 2020. The conversions resulted in the issuance of a nominal number of shares of the Company’s common stock to the note holders, and the Company recorded a loss of approximately $1,000 and approximately $6,000 on the conversion of these notes, which is included in other expenses, net on our consolidated statements of

comprehensive income for the three and nine months ended September 30, 2021. The Company continues to classify the carrying value of the 2019 Notes as current liabilities on the Company’s consolidated balance sheet at September 30, 2021.

The net carrying value of the liability component of the 2019 Notes is as follows:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
0.375% Convertible Senior Notes due 2024:
Principal amount	$	287,493		$	287,500
Unamortized debt discount		(30,793	)		(38,317	)
Unamortized debt issuance costs		(4,377	)		(5,446	)
Net carrying amount	$	252,323		$	243,737

Interest expense recognized on the 2019 Notes for the three months ended September 30, 2021 was $0.3 million, $2.5 million and $0.4 million for the contractual coupon interest, the accretion of the debt discount and the amortization of the debt issuance costs, respectively. Interest expense recognized on the 2019 Notes for the nine months ended September 30, 2021 was $0.8 million, $7.5 million and $1.1 million for the contractual coupon interest, the accretion of the debt discount and the amortization of the debt issuance costs, respectively. The effective interest rate on the 2019 Notes is 5.1%, which included the interest on the 2019 Notes, amortization of the debt discount and debt issuance costs. At September 30, 2021 and December 31, 2020, the carrying value of the 2019 Notes was $252.3 million and $243.7 million, respectively, net of unamortized discount, and the fair value of the 2019 Notes was $732.9 million and $501.0 million, respectively. The fair value of the 2019 Notes was determined based on the most recent trade activity of the 2019 Notes at September 30, 2021.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2021

Stockholders' Equity

8.Stockholders’ Equity

Stock Option and Incentive Plans

Under the Company’s current 2018 Stock Option and Incentive Plan (the “2018 Plan”), the number of shares of the Company’s common stock that are reserved and available for issuance is 2,778,000, plus the number of shares of common stock available for issuance under the Company’s previous plans. The shares of common stock underlying any awards under the 2018 Plan and previous plans (together, the “Plans”) that are forfeited, canceled or otherwise terminated (other than by exercise) shall be added back to the shares of stock available for issuance under the 2018 Plan. At September 30, 2021, 2,134,916 shares were available for future grants under the 2018 Plan.

Stock-Based Compensation

For each of the three months ended September 30, 2021 and 2020, the Company recorded stock-based compensation expense of $6.8 million and $4.2 million, respectively, for share-based awards granted under the Plans. For the nine months ended September 30, 2021 and 2020, the Company recorded stock-based compensation expense of $20.5 million and $12.5 million, respectively. The following table presents stock-based compensation expense in the Company’s consolidated statements of comprehensive income:

	Three Months Ended  September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Cost of product revenue	$	489	$	563	$	1,444	$	1,421
Research and development		698		326		2,209		1,092
Selling, general and administrative		5,605		3,336		16,823		9,979
Total stock-based compensation	$	6,792	$	4,225	$	20,476	$	12,492

The 2018 Plan allows for the granting of incentive and nonqualified options to purchase shares of common stock, restricted stock and other equity awards. Employee grants under the Plans generally vest over a three to five-year period, with 20%-33% vesting on the first anniversary of the date of grant and the remainder vesting in equal yearly installments thereafter.

Nonqualified options issued to non-employee directors under the Plans generally vest over one year. In the first quarter of 2018, to create a longer-term retention incentive, the Company’s Compensation Committee granted long-term incentive compensation

awards to its Chief Executive Officer consisting of both stock options and restricted stock units (“RSUs”) that are subject to time-based vesting over nine years. Options granted under the Plans have a maximum term of ten years from the date of grant and generally, the exercise price of the stock options equals the fair market value of the Company’s common stock on the date of grant. At September 30, 2021, options to purchase 658,600 shares and 619,761 stock units were outstanding under the Plans.

The Company uses the Black-Scholes option pricing model to calculate the fair value of stock option awards on the grant date, and the Company uses the value of the common stock as of the grant date to value RSUs. The Company measures stock-based compensation costs at the grant date based on the estimated fair value of the award. The Company recognizes expense on awards with service-based vesting over the employee’s requisite service period on a straight-line basis. Prior to 2020, the Company issued performance stock units to certain employees which are tied to the achievement of certain Company financial goal metrics and the passage of time. Since 2020, the Company has implemented formal programs that issue performance stock units to certain employees set to vest upon the achievement of individual goals and financial goals of the Company, as well as the passage of time. The Company recognizes expense on performance-based awards over the vesting period based on the probability that the performance metrics will be achieved. The Company recognizes stock-based compensation expense for options that are ultimately expected to vest, and accordingly, such compensation expense has been adjusted for estimated forfeitures.

Information regarding option activity for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted average exercise price		Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Options outstanding at December 31, 2020		696,711		$	43.88		6.90	$	102,958
Granted		38,824		$	202.88
Exercised		(70,935	)	$	28.00
Forfeited/expired/cancelled		(6,000	)	$	48.05
Options outstanding at September 30, 2021		658,600		$	54.93		6.55	$	154,152
Options exercisable at September 30, 2021		343,909		$	38.68		5.87	$	86,085
Vested and expected to vest at September 30, 2021(1)		637,504					6.53	$	149,348

(1)Represents the number of vested options as of September 30, 2021 plus the number of unvested options expected to vest as of September 30, 2021 based on the unvested outstanding options at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (the difference between the closing price of the common stock on September 30, 2021, the last business day of the third quarter of 2021, of $288.99 per share and the exercise price of each in-the-money option) that would have been received by the option holders had all option holders exercised their options on September 30, 2021. The aggregate intrinsic value of stock options exercised during the nine months ended September 30, 2021 and 2020 was $14.5 million and $30.7 million, respectively.

The weighted average grant date fair value of options granted during the nine months ended September 30, 2021 and 2020 was $88.01 and $48.13, respectively. The total fair value of stock options that vested during the nine months ended September 30, 2021 and 2020 was $2.6 million during each period.

The fair value of stock units is calculated using the closing price of the Company’s common stock on the date of grant. Information regarding stock unit activity, which includes activity for RSUs and performance stock units, for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Unvested at December 31, 2020		665,540			3.32	$	127,904
Awarded		164,968
Vested		(185,922	)
Forfeited/expired/cancelled		(24,825	)
Unvested at September 31, 2021		619,761			2.94	$	179,105
Unvested and expected to vest at September 30, 2021(1)		623,642			2.61	$	180,226

(1)Represents the number of vested stock units as of September 30, 2021 plus the number of unvested stock units expected to vest as of September 30, 2021 based on the unvested outstanding stock units at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

The aggregate intrinsic value in the table above represents the total pre-tax intrinsic value (equal to the closing price of the common stock on September 30, 2021, the last business day of the third quarter of 2021, of $288.99 per share, as stock units do not have an exercise price) that would have been received by the stock unit holders had all holders exercised on September 30, 2021. The aggregate intrinsic value of stock units vested during the nine months ended September 30, 2021 and 2020 was $39.2 million and $25.0 million, respectively.

The weighted average grant date fair value of stock units vested during the nine months ended September 30, 2021 and 2020 was $58.10 and $43.73, respectively. The total fair value of stock units that vested during the nine months ended September 30, 2021 and 2020 was $10.8 million and $9.8 million, respectively.

As of September 30, 2021, there was $61.3 million of total unrecognized compensation cost related to unvested share-based awards. This cost is expected to be recognized over a weighted average remaining requisite service period of 3.08 years. The Company expects 1,950,908 unvested options and stock units to vest over the next five years.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2021

Commitments and Contingencies

9.Commitments and Contingencies

In June 2018, the Company secured an agreement with Navigo Proteins (“Navigo”) for the exclusive co-development of multiple affinity ligands for which Repligen holds commercialization rights. The Company is manufacturing and supplying the first of these ligands, NGL-Impact®, exclusively to Purolite Life Sciences (“Purolite”), who is pairing the Company’s high-performance ligand with Purolite’s agarose jetting base bead technology used in their Jetted A50 Protein A resin product. The Company also signed a long-term supply agreement with Purolite for NGL-Impact and other potential additional affinity ligands that may advance from the Company’s Navigo collaboration. In September 2020, the Company and Navigo successfully completed co-development of an affinity ligand targeting the SARS-CoV-2 spike protein, to be utilized in the purification of COVID-19 vaccines. The Company has proceeded with scaling up and manufacturing this ligand and the development and validation of the related affinity chromatography resin, which is marketed by the Company. In September 2021, the Company and Navigo successfully completed co-development of a novel affinity ligand that addresses aggravation issues associated with pH sensitive antibodies and Fc-fusion proteins. The Company is manufacturing and supplying this ligand, NGL-Impact® HipH, to Purolite for use in a platform use resin product. The Navigo and Purolite agreements are supportive of the Company’s strategy to secure and reinforce the Company’s proteins business. The Company made royalty payments to Navigo of $0.5 million and $0.2 million for the three months ended September 30, 2021 and 2020, respectively and payments of $1.3 million and $0.4 million for the nine months ended September 30, 2021 and 2020, respectively.

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Accumulated Other Comprehensive (Loss) Income

9 Months Ended

Sep. 30, 2021

Accumulated Other Comprehensive (Loss) Income

10.Accumulated Other Comprehensive (Loss) Income

The following shows the changes in the components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2021 which consisted of only foreign currency translation adjustments for the periods shown (amounts in thousands):

	Foreign
	Currency
	Translation
	Adjustment
Balance as of December 31, 2020	$	2,085
Other comprehensive loss		(12,004	)
Balance at September 30, 2021	$	(9,919	)

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Income Taxes

9 Months Ended

Sep. 30, 2021

Income Taxes

11.Income Taxes

For the three and nine months ended September 30, 2021, we recorded an income tax provision of $7.7 million and $19.5 million, respectively. The Company’s effective tax rate for the three and nine months ended September 30, 2021 was 18.8% and 16.4%, respectively, compared to 18.0% and 9.5% for the corresponding periods in the prior year. The increase in effective tax rates was primarily due to higher income before income taxes, lower windfall benefits recognized on stock option exercises and the vesting of stock units partially offset by lower U.S. taxation of foreign earnings. The effective tax rates for the three and nine months ended September 30, 2021 and 2020 were lower than the U.S. statutory rate of 21% primarily due to business tax credits and windfall benefits on stock option exercises and the vesting of stock units.

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Earnings Per Share

9 Months Ended

Sep. 30, 2021

Earnings Per Share

12.Earnings Per Share

The Company reports earnings per share in accordance with ASC 260, “Earnings Per Share,” which establishes standards for computing and presenting earnings per share. Basic earnings per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted earnings per share is computed by dividing net income available to common shareholders by the weighted-average number of common shares and dilutive common share equivalents then outstanding. Potential common share equivalents consist of RSUs, performance stock units and the incremental common shares issuable upon the exercise of stock options. Under the treasury stock method, unexercised “in-the-money” stock options and warrants are assumed to be exercised at the beginning of the period or at issuance, if later. The assumed proceeds are then used to purchase common shares at the average market price during the period. In periods when the Company has a net loss, stock awards are excluded from the calculation of earnings per share as their inclusion would have an antidilutive effect.

A reconciliation of basic and diluted weighted average shares outstanding is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands, except per share data)
Net income	$	33,498	$	14,552	$	99,181	$	40,228
Weighted average shares used in computing net      income per share - basic		55,015		52,545		54,918		52,341
Effect of dilutive shares:
Options and stock units		919		916		913		951
Convertible senior notes		1,373		8		1,180		8
Dilutive effect of unvested performance stock units		61		—		61		—
Dilutive potential common shares		2,353		924		2,154		959
Weighted average shares used in computing net      income per share - diluted		57,368		53,469		57,072		53,300
Earnings per share:
Basic	$	0.61	$	0.28	$	1.81	$	0.77
Diluted	$	0.58	$	0.27	$	1.74	$	0.75

At September 30, 2021, there were outstanding options to purchase 658,600 shares of the Company’s common stock at a weighted average exercise price of $54.93 per share and 619,761 shares of common stock issuable upon the vesting of stock units, which include RSUs and performance stock units. For the three and nine months ended September 30, 2021, 44,912 shares and 63,770 shares, respectively, of the Company’s common stock were excluded from the calculation of diluted earnings per share because the exercise prices of the stock options were greater than or equal to the average price of the common shares and were therefore anti-dilutive.

At September 30, 2020, there were outstanding options to purchase 723,914 shares of the Company’s common stock at a weighted average exercise price of $41.03 per share and 675,567 shares of common stock issuable upon the vesting of stock units, which include RSUs and performance stock units. For the three and nine months ended September 30, 2020, 60,202 and 117,160 shares of the Company’s common stock were excluded from the calculation of diluted earnings per share because the exercise prices of the stock options were greater than or equal to the average price of the common shares and were therefore anti-dilutive.

In July 2019, the Company issued $287.5 million aggregate principal amount of the 2019 Notes. As provided by the terms of the indenture underlying the 2019 Notes, conversion of the 2019 Notes will be settled in cash, shares of the Company’s common stock or a combination thereof, at the Company’s election. As of September 30, 2021, the 2019 Notes were convertible. The Company currently intends to settle the par value of the 2019 Notes in cash and any excess conversion premium in shares.

As provided by the terms of the indenture underlying the 2019 Notes, the Company has a choice to settle the conversion obligation for the 2019 Notes in cash, shares or any combination of the two. The Company currently intends to settle the par value of the 2019 Notes in cash and any excess conversion premium in shares. The Company applies the provisions of ASC 260, “Earnings Per Share”, Subsection 10-45-44, to determine the diluted weighted average shares outstanding as it relates to the conversion spread on its convertible notes. Accordingly, the par value of the 2019 Notes is not included in the calculation of diluted income per share, but the dilutive effect of the conversion premium is considered in the calculation of diluted net income per share using the treasury stock method. The dilutive impact of the 2019 Notes is based on the difference between the Company’s current period average stock price and the conversion price of the 2019 Notes, provided there is a premium. Pursuant to this accounting standard, there is no dilution from the accreted principal of the 2019 Notes. For the three and nine months ended September 30, 2021, the dilutive effect of the conversion premium included in the calculation of diluted earnings was 1,373,341 shares and 1,180,425 shares, respectively. There was no dilutive effect of the conversion premium included in the calculation of diluted earnings per share for the three and nine months ended September 30, 2020.

On September 20, 2021, as a result of the Avitide Acquisition, the Company assumed a contingent consideration obligation for earnout payments in an aggregate amount of $80.0 million which will be paid equally in cash and the Company’s common stock, contingent upon the achievement of certain performance thresholds and targets each year over a three year period as discussed in Note 2, “Fair Value Measurements,” to these consolidated financial statements. As of September 30, 2021, none of the contingent triggers have occurred.

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Related Party Transactions

9 Months Ended

Sep. 30, 2021

Related Party Transactions

13.Related Party Transactions

Certain facilities leased by Spectrum are owned by Roy Eddleman, the former owner of Spectrum. As of September 30, 2021, Mr. Eddleman owned greater than 5% of the Company’s outstanding shares and the Company considers him to be a related party. The lease amounts paid to this shareholder prior to the public offering were negotiated in connection with the acquisition of Spectrum. The Company incurred rent expense totaling $0.2 million and $0.1 million for each of the three months ended September 30, 2021 and 2020, respectively, related to these leases and incurred rent expense of $0.5 million for each of the nine months ended September 30, 2021 and 2020, respectively.

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Segment Reporting

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Segment Reporting

14.Segment Reporting

The Company views its operations, makes decisions regarding how to allocate resources and manages its business as one reportable segment and one reporting unit. As a result, the financial information disclosed herein represents all of the material financial information related to the Company.

The following table represents the Company’s total revenue by geographic area (based on the location of the customer):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Revenue by customers' geographic locations:
North America		44	%		50	%		42	%		48	%
Europe		42	%		36	%		40	%		38	%
APAC/Other		14	%		14	%		18	%		14	%
Total revenue		100	%		100	%		100	%		100	%

Concentrations of Credit Risk and Significant Customers

Financial instruments that subject the Company to significant concentrations of credit risk primarily consist of cash and cash equivalents, marketable securities and accounts receivable. Per the Company’s investment policy, cash equivalents and marketable securities are invested in financial instruments with high credit ratings and credit exposure to any one issue, issuer (with the exception of U.S. Treasury obligations) and type of instrument is limited. At September 30, 2021 and December 31, 2020, the Company had no investments associated with foreign exchange contracts, options contracts or other foreign hedging arrangements.

Concentration of credit risk with respect to accounts receivable is limited to customers to whom the Company makes significant sales. While a reserve for the potential write-off of accounts receivable is maintained, the Company has not written off any significant accounts to date. To control credit risk, the Company performs regular credit evaluations of its customers’ financial condition.

Revenue from customers that represented 10% or more of the Company’s total revenue for the three months ended September 30, 2021 and 2020 came from sales to Pfizer Inc. during the three months ended September 30, 2021, which generated $19.1 million, or 11% of the Company's total revenue for the period. Revenue from customers that represented 10% or more of the Company's total revenue for the nine months ended September 30, 2021 and 2020 came from sales to MilliporeSigma during the nine months ended September 30, 2020, which generated $29.4 million in revenue, or 11% of the Company's total revenue for the period. There was no revenue from customers that represented 10% or more of the Company's total revenue for the other periods presented.

Significant accounts receivable balances representing 10% or more of the Company’s total trade accounts receivable and royalties and other receivable balances at September 30, 2021 and December 31, 2020 are as follows:

	September 30,			December 31,
	2021			2020
Pfizer Inc.		10	%	N/A
Cytiva	N/A				11	%

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Basis of presentation

Basis of Presentation

The consolidated financial statements included herein have been prepared by Repligen Corporation (the “Company”, “Repligen”, “our” or “we”) in accordance with generally accepted accounting principles in the United States (“GAAP”) and pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”), for Quarterly Reports on Form 10-Q and Article 10 of Regulation S-X and do not include all of the information and footnote disclosures required by GAAP. These consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2020, which was filed with the SEC on February 24, 2021 (“Form 10-K”).

The preparation of financial statements in conformity with 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. The business and economic uncertainty resulting from the novel coronavirus (“COVID-19”) pandemic has made such estimates more difficult to calculate. Accordingly, actual results could differ from those estimates.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, Repligen Sweden AB, Repligen GmbH, Spectrum® LifeSciences LLC and its subsidiaries (“Spectrum”), C Technologies, Inc. (“C Technologies”), Non-Metallic Solutions, Inc. (“NMS”), ARTeSYN Biosolutions Holdings Ireland Limited (“ARTeSYN”), Polymem S.A. (“Polymem”), Avitide, Inc. (“Avitide”) and Repligen Singapore Pte. Ltd. All significant intercompany accounts and transactions have been eliminated in consolidation.

The Company made no material changes in the application of its significant accounting policies that were disclosed in its Form 10-K. In the opinion of management, the accompanying unaudited consolidated financial statements include all adjustments, consisting of only normal, recurring adjustments necessary for a fair presentation of the financial position, results of operations and cash flows. The results of operations for the interim periods presented are not necessarily indicative of results to be expected for the entire year. Certain prior year balances have been reclassified to conform to current year presentation.

Recent Accounting Standards Updates

Recent Accounting Standards Updates

We consider the applicability and impact of all Accounting Standards Updates (“ASUs” or “ASU”) on the Company’s consolidated financial statements. Updates not listed below were assessed and determined to be either not applicable or are expected to have minimal impact on the Company’s consolidated financial position or results of operations. Recently issued ASUs that we feel may be applicable to the Company are as follows:

Recently Issued Accounting Standard Updates – Not Yet Adopted

In August 2020, the Financial Accounting Standards Board (“FASB”) issued ASU 2020-06, “Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40).” ASU 2020-06 simplifies the accounting for convertible debt instruments and convertible preferred stock by reducing the number of accounting models and the number of embedded conversion features that could be recognized separately from the primary contract. ASU 2020-06 also enhances transparency and improves disclosures for convertible instruments and earnings per share guidance. ASU 2020-06 is effective for annual reporting periods beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. This update permits the use of either the modified retrospective or fully retrospective method of transition. The Company is currently evaluating the impact of the adoption of ASU 2020-06 on the Company's consolidated financial statements. 

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Financial assets and financial liabilities measured at fair value on a recurring basis consist of the following as of September 30, 2021 and December 31, 2020:

	As of September 30, 2021
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	448,908	$	—	$	—	$	448,908
Liabilities:
Contingent consideration - earnout obligation	$	—	$	—	$	79,962	$	79,962

	As of December 31, 2020
	Level 1		Level 2		Level 3		Total
Assets:
Money market accounts	$	549,030	$	—	$	—	$	549,030

Schedule of Reconciliation of the Change in the Fair Value of Contingent Consideration - Earnout

A reconciliation of the change in the fair value of contingent consideration - earnout is included in the following table (amounts in thousands):

Balance as of December 31, 2020	$	—
Acquisition date fair value of contingent consideration - earnout		79,962
Change in fair value		—
Balance as of September 30, 2021	$	79,962

Schedule of Contingent Consideration Earnout Expect to be Required to Settle Include Significant Unobservable Inputs

The recurring Level 3 fair value measurement of our contingent consideration earnout that we expect to be required to settle include the following significant unobservable inputs:

Contingent Consideration Earnout	Fair Value as of September 20, 2021 (amounts in thousands)		Valuation Technique	Unobservable Input	Range	Weighted Average(1)
				Probability of
Commercialization-based			Monte Carlo	Success	100%	100%
payments	$	28,553	Simulation	Earnout Discount Rate	1.4%-2.6%	2%
				Volatility	32.8%	32.8%
Revenue and Volume-			Monte Carlo	Revenue & Volume
based payments	$	51,409	Simulation	Discount Rate	9.4%	9.4%
				Earnout Discount Rate	1.4%-2.6%	2%

(1)Unobservable inputs were weighted by the relative fair value of the contingent consideration liability.

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Acquisitions (Tables)

9 Months Ended

Sep. 30, 2021

Avitide, Inc.

Schedule of Business Combination Consideration Transferred

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	75,004
Equity consideration		77,576
Contingent consideration - earnout		79,962
Fair value of net assets acquired	$	232,542

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	572
Accounts receivable		228
Inventory		400
Prepaid expenses and other current assets		114
Property and equipment		1,862
Operating lease right of use asset		2,459
Customer relationships		23,310
Developed technology		19,610
Trademark and tradename		1,150
Non-competition agreements		200
Goodwill		193,463
Accounts payable		(215	)
Accrued liabilities		(2,183	)
Operating lease liability		(782	)
Operating lease liability, long-term		(1,606	)
Long term deferred tax liability		(5,982	)
Other liabilities		(58	)
Fair value of net assets acquired	$	232,542

Schedule of Identified Intangible Assets and Estimated Useful Lives

The following table sets forth the components of the identified intangible assets associated with the Avitide Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	13 years	$	23,310
Developed technology	15 years		19,610
Trademark and tradename	18 years		1,150
Non-competition agreements	3 years		200
		$	44,270

Polymem S.A.

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	353
Net working capital (excluding cash and inventory      step-up)		375
Inventory step-up		543
Operating lease right of use assets		1,424
Property and equipment		3,145
Other assets		41
Customer relationships		17,234
Developed technology		7,545
Trademark and tradenames		557
Non-compete agreements		344
Goodwill		23,453
Operating lease liability		(1,253	)
Long term deferred tax liability		(6,646	)
Other long-term liabilities		(142	)
Fair value of net assets acquired	$	46,973

Schedule of Identified Intangible Assets and Estimated Useful Lives

The following table sets forth the components of the identified intangible assets associated with the Polymem Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	17,234
Developed technology	13 years		7,545
Trademark and tradename	14 years		557
Non-competition agreements	5 years		344
		$	25,680

ARTeSYN Biosolutions

Schedule of Business Combination Consideration Transferred

Total consideration transferred is as follows (amounts in thousands):

Cash consideration	$	130,713
Equity consideration		69,422
Contingent consideration		1,548
Settlement of preexisting liabilities		2,310
Fair value of net assets acquired	$	203,993

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The components and estimated allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	2,982
Accounts receivable		4,811
Inventory		8,592
Prepaid expenses and other current assets		5,561
Property and equipment		1,836
Operating lease right of use asset		1,611
Other noncurrent assets		26
Customer relationships		38,400
Developed technology		27,060
Trademark and tradename		1,630
Non-competition agreements		300
Goodwill		128,598
Accounts payable		(2,251	)
Accrued liabilities		(8,706	)
Deferred revenue		(3,583	)
Deferred tax liabilities, net		(1,240	)
Notes payable		(24	)
Operating lease liability		(417	)
Operating lease liability, long-term		(1,193	)
Fair value of net assets acquired	$	203,993

Schedule of Identified Intangible Assets and Estimated Useful Lives

The following table sets forth the components of the identified intangible assets associated with the ARTeSYN Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	17 years	$	38,400
Developed technology	15 years		27,060
Trademark and tradename	21 years		1,630
Non-competition agreements	3 years		300
		$	67,390

Non Metallic Solutions

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The components and allocation of the purchase price consist of the following (amounts in thousands):

Cash and cash equivalents	$	1,163
Accounts receivable		415
Inventory		334
Prepaid expenses and other current assets		13
Property and equipment		73
Operating lease right of use asset		194
Customer relationships		6,370
Developed technology		1,810
Trademark and tradename		190
Non-competition agreements		90
Goodwill		6,713
Deferred tax assets		24
Accounts payable		(96	)
Accrued liabilities		(999	)
Operating lease liability		(136	)
Operating lease liability, long-term		(59	)
Fair value of net assets acquired	$	16,099

Schedule of Identified Intangible Assets and Estimated Useful Lives

The following table sets forth the components of the identified intangible assets associated with the NMS Acquisition and their estimated useful lives:

	Useful life	Fair Value
		(Amounts in thousands)
Customer relationships	14 years	$	6,370
Developed technology	12 years		1,810
Trademark and tradename	15 years		190
Non-competition agreements	3 years		90
		$	8,460

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Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Disaggregation of Revenue

Revenues for the three and nine months ended September 30, 2021 and 2020 were as follows:

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Product revenue	$	178,177	$	94,029	$	483,834	$	257,521
Royalty and other income		39		31		179		91
Total revenue	$	178,216	$	94,060	$	484,013	$	257,612

Summary of Receivables and Deferred Revenue from Contracts with Customers

The following table provides information about receivables and deferred revenue from contracts with customers as of September 30, 2021 (amounts in thousands):

	2021
Balances from contracts with customers only:
Accounts receivable, net of reserves	$	122,048
Deferred revenue (included in accrued liabilities in the consolidated balance sheets)	$	16,337
Revenue recognized during the nine-month period ended September 30, 2021 relating to:
The beginning deferred revenue balance	$	13,071

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Changes in Carrying Value of Goodwill

The following table represents the change in the carrying value of goodwill for the nine months ended September 30, 2021 (amounts in thousands):

Balance at December 31, 2020	$	618,305
Measurement period adjustment - NMS		(71	)
Measurement period adjustments - ARTeSYN		(60	)
Acquisition of Polymem		23,453
Acquisition of Avitide		193,463
Cumulative translation adjustment		(1,531	)
Balance at September 30, 2021	$	833,559

Intangible assets

Intangible assets, net consisted of the following at September 30, 2021:

	September 30, 2021
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	141,039	$	(19,426	)	$	121,613		17
Patents		240		(240	)		—		8
Customer relationships		257,297		(47,363	)		209,934		15
Trademarks		7,367		(771	)		6,596		19
Other intangibles		2,826		(1,506	)		1,320		4
Total finite-lived intangible assets		408,769		(69,306	)		339,463		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	409,469	$	(69,306	)	$	340,163

Intangible assets consisted of the following at December 31, 2020:

	December 31, 2020
	Gross Carrying Value		Accumulated Amortization			Net Carrying Value		Weighted Average Useful Life (in years)
	(Amounts in thousands)
Finite-lived intangible assets:
Technology - developed	$	114,217	$	(14,444	)	$	99,773		17
Patents		240		(240	)		—		8
Customer relationships		217,790		(37,333	)		180,457		16
Trademarks		5,893		(541	)		5,352		20
Other intangibles		2,142		(1,324	)		818		3
Total finite-lived intangible assets		340,282		(53,882	)		286,400		16
Indefinite-lived intangible asset:
Trademarks		700		—			700		—
Total intangible assets	$	340,982	$	(53,882	)	$	287,100

Schedule of Amortization Expense for Amortized Intangible Assets

As of September 30, 2021, the Company expects to record the following amortization expense in future periods (amounts in thousands):

	Estimated
	Amortization
For the Nine Months Ended September 30,	Expense
2021 (remaining three months)	$	7,004
2022		25,840
2023		25,722
2024		25,088
2025		24,821
2026 and thereafter		230,988
Total	$	339,463

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Consolidated Balance Sheet Detail (Tables)

9 Months Ended

Sep. 30, 2021

Inventories

Inventories, net

Inventories, net consists of the following:

	September 30,		December 31,
	2021		2020
	(Amounts in thousands)
Raw materials	$	105,157	$	48,746
Work-in-process		7,860		8,084
Finished products		43,146		38,195
Total inventories, net	$	156,163	$	95,025

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Land	$	1,023		$	1,023
Buildings		764			1,007
Leasehold improvements		51,778			31,331
Equipment		65,764			43,072
Furniture, fixtures and office equipment		8,355			8,714
Computer hardware and software		21,436			15,397
Construction in progress		14,723			14,927
Other		497			455
Total property, plant and equipment		164,340			115,926
Less - Accumulated depreciation		(64,688	)		(49,056	)
Total property, plant and equipment, net	$	99,652		$	66,870

Accrued Liabilities

Accrued Liabilities

Accrued liabilities consist of the following:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
Employee compensation	$	34,056		$	20,288
Income taxes payable		8,435			1,423
Royalty and license fees		1,497			466
Warranties		1,759			1,576
Professional fees		2,179			1,425
Deferred revenue		16,337			15,318
Other		(869	)		12,589
Total accrued liabilities	$	63,394		$	53,085

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Convertible Senior Notes (Tables)

9 Months Ended

Sep. 30, 2021

Carrying Value of Convertible Senior Notes

The net carrying value of the liability component of the 2019 Notes is as follows:

	September 30,			December 31,
	2021			2020
	(Amounts in thousands)
0.375% Convertible Senior Notes due 2024:
Principal amount	$	287,493		$	287,500
Unamortized debt discount		(30,793	)		(38,317	)
Unamortized debt issuance costs		(4,377	)		(5,446	)
Net carrying amount	$	252,323		$	243,737

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Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2021

Stock-Based Compensation Expense

The following table presents stock-based compensation expense in the Company’s consolidated statements of comprehensive income:

	Three Months Ended  September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands)
Cost of product revenue	$	489	$	563	$	1,444	$	1,421
Research and development		698		326		2,209		1,092
Selling, general and administrative		5,605		3,336		16,823		9,979
Total stock-based compensation	$	6,792	$	4,225	$	20,476	$	12,492

Summary of Option Activity

Information regarding option activity for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted average exercise price		Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Options outstanding at December 31, 2020		696,711		$	43.88		6.90	$	102,958
Granted		38,824		$	202.88
Exercised		(70,935	)	$	28.00
Forfeited/expired/cancelled		(6,000	)	$	48.05
Options outstanding at September 30, 2021		658,600		$	54.93		6.55	$	154,152
Options exercisable at September 30, 2021		343,909		$	38.68		5.87	$	86,085
Vested and expected to vest at September 30, 2021(1)		637,504					6.53	$	149,348

(1)Represents the number of vested options as of September 30, 2021 plus the number of unvested options expected to vest as of September 30, 2021 based on the unvested outstanding options at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

Summary of Restricted Stock Unit Activity

The fair value of stock units is calculated using the closing price of the Company’s common stock on the date of grant. Information regarding stock unit activity, which includes activity for RSUs and performance stock units, for the nine months ended September 30, 2021 under the Plans is summarized below:

	Shares			Weighted-Average Remaining Contractual Term (in Years)		Aggregate Intrinsic Value (in Thousands)
Unvested at December 31, 2020		665,540			3.32	$	127,904
Awarded		164,968
Vested		(185,922	)
Forfeited/expired/cancelled		(24,825	)
Unvested at September 31, 2021		619,761			2.94	$	179,105
Unvested and expected to vest at September 30, 2021(1)		623,642			2.61	$	180,226

(1)Represents the number of vested stock units as of September 30, 2021 plus the number of unvested stock units expected to vest as of September 30, 2021 based on the unvested outstanding stock units at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

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Accumulated Other Comprehensive (Loss) Income (Tables)

9 Months Ended

Sep. 30, 2021

Summary of Changes in Accumulated Other Comprehensive (Loss) Income

The following shows the changes in the components of accumulated other comprehensive (loss) income for the nine months ended September 30, 2021 which consisted of only foreign currency translation adjustments for the periods shown (amounts in thousands):

	Foreign
	Currency
	Translation
	Adjustment
Balance as of December 31, 2020	$	2,085
Other comprehensive loss		(12,004	)
Balance at September 30, 2021	$	(9,919	)

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2021

Basic and Diluted Weighted Average Shares Outstanding

A reconciliation of basic and diluted weighted average shares outstanding is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
	(Amounts in thousands, except per share data)
Net income	$	33,498	$	14,552	$	99,181	$	40,228
Weighted average shares used in computing net      income per share - basic		55,015		52,545		54,918		52,341
Effect of dilutive shares:
Options and stock units		919		916		913		951
Convertible senior notes		1,373		8		1,180		8
Dilutive effect of unvested performance stock units		61		—		61		—
Dilutive potential common shares		2,353		924		2,154		959
Weighted average shares used in computing net      income per share - diluted		57,368		53,469		57,072		53,300
Earnings per share:
Basic	$	0.61	$	0.28	$	1.81	$	0.77
Diluted	$	0.58	$	0.27	$	1.74	$	0.75

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Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2021

Percentage by Geographic Area or Significant Customers

The following table represents the Company’s total revenue by geographic area (based on the location of the customer):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Revenue by customers' geographic locations:
North America		44	%		50	%		42	%		48	%
Europe		42	%		36	%		40	%		38	%
APAC/Other		14	%		14	%		18	%		14	%
Total revenue		100	%		100	%		100	%		100	%

Percentage of Revenue from Significant Customers

	September 30,			December 31,
	2021			2020
Pfizer Inc.		10	%	N/A
Cytiva	N/A				11	%

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Fair Value Measurements - Schedule of Financial assets and financial liabilities measured at fair value on a recurring basis (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Money Market
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 448,908	$ 549,030
Level 1 | Money Market
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	448,908	$ 549,030
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	79,962
Convertible Debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	$ 79,962

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Fair Value Measurement - Additional Information (Detail) - USD ($)				9 Months Ended
	Sep. 30, 2021	Sep. 20, 2021	Sep. 16, 2021	Sep. 30, 2021	Dec. 31, 2020	Jul. 31, 2019
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	$ 621,098,000			$ 621,098,000	$ 717,292,000
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Summary Of Significant Accounting Policies [Line Items]
Cash and cash equivalents	448,900,000			$ 448,900,000	549,000,000.0
0.375% Convertible Senior Notes due 2024
Summary Of Significant Accounting Policies [Line Items]
Principal amount						$ 287,500,000
Notes, due date				Jul. 15, 2024
Notes, frequency of periodic payment				semi-annually
Total convertible senior notes	252,300,000			$ 252,300,000	243,700,000
Fair value of convertible senior notes	732,900,000			732,900,000	$ 501,000,000.0
Senior convertible notes						0.375%
Avitide, Inc.
Summary Of Significant Accounting Policies [Line Items]
Upfront payment		$ 150,000,000.0	$ 75,000,000.0
Business combination contingent consideration			$ 80,000,000.0	$ 79,962,000
Additional undiscounted in contingent consideration earnout payments		$ 125,000,000.0
Changes in revenue projection	$ 0

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Fair Value Measurements - Schedule of Reconciliation of the Change in the Fair Value of Contingent Consideration - Earnout (Detail) - Contingent Consideration - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance as of December 31, 2020	$ 79,962	$ 0
Acquisition date fair value of contingent consideration - earnout	79,962
Change in fair value	0
Balance as of September 30, 2021	$ 79,962

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Fair Value Measurements - Schedule of Contingent Consideration Earnout Expect to be Required to Settle Include Significant Unobservable Inputs (Detail) - Contingent Consideration - USD ($) $ in Thousands		Sep. 30, 2021	Sep. 20, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		$ 79,962		$ 0
Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Probability of success			100.00%
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		28,553
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring | Probability of Success
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		100.00%
R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring | Earnout Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		2.00%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, fair value		$ 51,409
Volatility			32.80%
Revenue and volume discount rate			9.40%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Earnout Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		2.00%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Volatility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		32.80%
Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring | Revenue & Volume Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Weighted average discount rate	[1]		9.40%
Minimum | R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			1.40%
Minimum | Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			1.40%
Maximum | R&D and Commercialization-based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			2.60%
Maximum | Revenue and Volume Based Payments | Monte Carlo Simulation | Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate			2.60%

[1] Unobservable inputs were weighted by the relative fair value of the contingent consideration liability.

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Acquisitions - Additional Information (Detail) - USD ($)					9 Months Ended
	Sep. 20, 2021	Sep. 16, 2021	Jun. 22, 2021	Oct. 27, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired					$ 120,979,000	$ 28,445,000
Goodwill					833,559,000		$ 618,305,000
Selling, general and administrative
Business Acquisition [Line Items]
Transaction costs					$ 3,400,000		4,000,000.0
Avitide, Inc.
Business Acquisition [Line Items]
Cash consideration	$ 150,000,000.0	$ 75,000,000.0
Shares issued for business acquisition		271,096			271,096
Value of common stock issued		$ 77,600,000			$ 77,576,000
Net liabilities assumed		5,200,000
Business combination, consideration transferred					232,542,000
Fair value of acquired finite lived intangible assets		44,300,000
Goodwill					193,463,000
Intangible Asset Residual Value		193,500,000
Transaction costs					600,000
Business combination contingent consideration		80,000,000.0			79,962,000
Avitide, Inc. | Capital Stock
Business Acquisition [Line Items]
Cash consideration		150,000,000.0
Payments to Acquire Businesses, Net of Cash Acquired		149,400,000
Business combination, consideration transferred		275,000,000.0
Business acquisition, Indemnification escrow		800,000
Business combination contingent consideration		$ 125,000,000.0
Polymem S.A.
Business Acquisition [Line Items]
Cash consideration			$ 47,000,000.0
Net liabilities assumed					2,200,000
Fair value of acquired finite lived intangible assets					25,700
Goodwill					23,453,000
Intangible Asset Residual Value					23,500,000
Transaction costs					1,900,000
Business acquisition, Indemnification escrow					4,300,000
ARTeSYN Biosolutions
Business Acquisition [Line Items]
Cash consideration				$ 130,000	$ 130,700,000
Shares issued for business acquisition					372,990
Value of common stock issued				70,000,000	$ 69,422,000
Working capital adjustment					100,000
Business combination, consideration transferred				200,000,000	203,993,000
Fair value of tangible assets acquired					8,000,000.0
Fair value of acquired finite lived intangible assets					67,400,000
Goodwill					128,598,000
Intangible Asset Residual Value					128,600,000
Business combination contingent consideration				$ 1,500,000	1,548,000
Business combination settlement of preexisting invoices					2,310,000
ARTeSYN Biosolutions | Goodwill [Member]
Business Acquisition [Line Items]
Intangible Asset Residual Value					128,600
Non Metallic Solutions
Business Acquisition [Line Items]
Working capital adjustment					100,000
Business combination, consideration transferred					16,100,000
Fair value of tangible assets acquired					900,000
Fair value of acquired finite lived intangible assets					8,500,000
Goodwill					6,713,000
Intangible Asset Residual Value					6,700,000
Transaction costs					400,000		$ 200,000
Business combinations cash deposited in escrow account					$ 1,300,000

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Acquisitions - Consideration Transferred (Detail) - USD ($) $ in Thousands			9 Months Ended
	Sep. 16, 2021	Oct. 27, 2020	Sep. 30, 2021
Avitide, Inc.
Business Acquisition [Line Items]
Cash consideration			$ 75,004
Equity consideration	$ 77,600		77,576
Contingent consideration	$ 80,000		79,962
Fair value of net assets acquired			232,542
ARTeSYN Biosolutions
Business Acquisition [Line Items]
Cash consideration			130,713
Equity consideration		$ 70,000	69,422
Contingent consideration		1,500	1,548
Settlement of preexisting liabilities			2,310
Fair value of net assets acquired		$ 200,000	$ 203,993

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Acquisitions - Fair Value of Net Assets Acquired (Detail) - USD ($)	Sep. 30, 2021	Sep. 16, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 833,559,000		$ 618,305,000
Avitide, Inc.
Business Acquisition [Line Items]
Cash and cash equivalents	572,000
Accounts receivable	228,000
Inventory	400,000
Prepaid expenses and other current assets	114,000
Property and equipment	1,862,000
Operating lease right of use asset	2,459,000
Business combination, intangible assets		$ 44,300,000
Goodwill	193,463,000
Net liabilities assumed		$ 5,200,000
Accounts payable	(215,000)
Accrued liabilities	(2,183,000)
Operating lease liability	(782,000)
Operating lease liability, long-term	(1,606,000)
Long term deferred tax liability	(5,982,000)
Other long-term liabilities	(58,000)
Fair value of net assets acquired	232,542,000
Avitide, Inc. | Customer relationships
Business Acquisition [Line Items]
Business combination, intangible assets	23,310,000
Avitide, Inc. | Developed technology
Business Acquisition [Line Items]
Business combination, intangible assets	19,610,000
Avitide, Inc. | Trademark and tradename
Business Acquisition [Line Items]
Business combination, intangible assets	1,150,000
Avitide, Inc. | Non-competition agreements
Business Acquisition [Line Items]
Business combination, intangible assets	200,000
Polymem S.A.
Business Acquisition [Line Items]
Cash and cash equivalents	353,000
Net working capital (excluding cash and inventory step-up)	375,000
Inventory	543,000
Property and equipment	3,145,000
Operating lease right of use asset	1,424,000
Other assets	41,000
Business combination, intangible assets	25,700
Goodwill	23,453,000
Net liabilities assumed	2,200,000
Operating lease liability	(1,253,000)
Long term deferred tax liability	(6,646,000)
Other long-term liabilities	(142,000)
Fair value of net assets acquired	46,973,000
Polymem S.A. | Customer relationships
Business Acquisition [Line Items]
Business combination, intangible assets	17,234,000
Polymem S.A. | Developed technology
Business Acquisition [Line Items]
Business combination, intangible assets	7,545,000
Polymem S.A. | Trademark and tradename
Business Acquisition [Line Items]
Business combination, intangible assets	557,000
Polymem S.A. | Non-competition agreements
Business Acquisition [Line Items]
Business combination, intangible assets	344,000
ARTeSYN Biosolutions
Business Acquisition [Line Items]
Cash and cash equivalents	2,982,000
Accounts receivable	4,811,000
Inventory	8,592,000
Prepaid expenses and other current assets	5,561,000
Property and equipment	1,836,000
Operating lease right of use asset	1,611,000
Other assets	26,000
Business combination, intangible assets	67,400,000
Goodwill	128,598,000
Accounts payable	(2,251,000)
Accrued liabilities	(8,706,000)
Deferred revenue	(3,583,000)
Deferred tax liabilities ,net	(1,240,000)
Notes payable	(24,000)
Operating lease liability	(417,000)
Operating lease liability, long-term	(1,193,000)
Fair value of net assets acquired	203,993,000
ARTeSYN Biosolutions | Customer relationships
Business Acquisition [Line Items]
Business combination, intangible assets	38,400,000
ARTeSYN Biosolutions | Developed technology
Business Acquisition [Line Items]
Business combination, intangible assets	27,060,000
ARTeSYN Biosolutions | Trademark and tradename
Business Acquisition [Line Items]
Business combination, intangible assets	1,630,000
ARTeSYN Biosolutions | Non-competition agreements
Business Acquisition [Line Items]
Business combination, intangible assets	300,000
Non Metallic Solutions
Business Acquisition [Line Items]
Cash and cash equivalents	1,163,000
Accounts receivable	415,000
Inventory	334,000
Prepaid expenses and other current assets	13,000
Property and equipment	73,000
Operating lease right of use asset	194,000
Business combination, intangible assets	8,500,000
Goodwill	6,713,000
Deferred tax assets	24,000
Accounts payable	(96,000)
Accrued liabilities	(999,000)
Operating lease liability	(136,000)
Operating lease liability, long-term	(59,000)
Fair value of net assets acquired	16,099,000
Non Metallic Solutions | Customer relationships
Business Acquisition [Line Items]
Business combination, intangible assets	6,370,000
Non Metallic Solutions | Developed technology
Business Acquisition [Line Items]
Business combination, intangible assets	1,810,000
Non Metallic Solutions | Trademark and tradename
Business Acquisition [Line Items]
Business combination, intangible assets	190,000
Non Metallic Solutions | Non-competition agreements
Business Acquisition [Line Items]
Business combination, intangible assets	$ 90,000

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Acquisitions - Estimated Useful Life and Fair Value (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Avitide, Inc.
Fair Value	$ 44,270
Polymem S.A.
Fair Value	25,680
ARTeSYN Biosolutions
Fair Value	67,390
Non Metallic Solutions
Fair Value	$ 8,460
Customer Relationships [Member] | Avitide, Inc.
Weighted Average Useful Life (in years)	13 years
Fair Value	$ 23,310
Customer Relationships [Member] | Polymem S.A.
Weighted Average Useful Life (in years)	14 years
Fair Value	$ 17,234
Customer Relationships [Member] | ARTeSYN Biosolutions
Weighted Average Useful Life (in years)	17 years
Fair Value	$ 38,400
Customer Relationships [Member] | Non Metallic Solutions
Weighted Average Useful Life (in years)	14 years
Fair Value	$ 6,370
Developed Technology Rights [Member] | Avitide, Inc.
Weighted Average Useful Life (in years)	15 years
Fair Value	$ 19,610
Developed Technology Rights [Member] | Polymem S.A.
Weighted Average Useful Life (in years)	13 years
Fair Value	$ 7,545
Developed Technology Rights [Member] | ARTeSYN Biosolutions
Weighted Average Useful Life (in years)	15 years
Fair Value	$ 27,060
Developed Technology Rights [Member] | Non Metallic Solutions
Weighted Average Useful Life (in years)	12 years
Fair Value	$ 1,810
Trademark and tradename [Member] | Avitide, Inc.
Weighted Average Useful Life (in years)	18 years
Fair Value	$ 1,150
Trademark and tradename [Member] | Polymem S.A.
Weighted Average Useful Life (in years)	14 years
Fair Value	$ 557
Trademark and tradename [Member] | ARTeSYN Biosolutions
Weighted Average Useful Life (in years)	21 years
Fair Value	$ 1,630
Trademark and tradename [Member] | Non Metallic Solutions
Weighted Average Useful Life (in years)	15 years
Fair Value	$ 190
Noncompete Agreements [Member] | Avitide, Inc.
Weighted Average Useful Life (in years)	3 years
Fair Value	$ 200
Noncompete Agreements [Member] | Polymem S.A.
Weighted Average Useful Life (in years)	5 years
Fair Value	$ 344
Noncompete Agreements [Member] | ARTeSYN Biosolutions
Weighted Average Useful Life (in years)	3 years
Fair Value	$ 300
Noncompete Agreements [Member] | Non Metallic Solutions
Weighted Average Useful Life (in years)	3 years
Fair Value	$ 90

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Summary of Disaggregation of Product Revenues from Contracts with Customers by Major Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 178,216	$ 94,060	$ 484,013	$ 257,612
Product Revenue
Disaggregation of Revenue [Line Items]
Total revenue	178,177	94,029	483,834	257,521
Royalty and Other Income
Disaggregation of Revenue [Line Items]
Total revenue	$ 39	$ 31	$ 179	$ 91

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Summary of Receivables and Deferred Revenue from Contracts with Customers (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Balances from contracts with customers only:
Accounts receivable, net of reserves	$ 122,048	$ 71,389
Deferred revenue (included in accrued liabilities in the consolidated balance sheets)	16,337
Revenue recognized during the nine-month period ended September 30, 2021 relating to:
The beginning deferred revenue balance	$ 13,071

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Revenue Recognition - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Other Revenues [Line Items]
Revenue	$ 178,216,000	$ 94,060,000	$ 484,013,000	$ 257,612,000
Revenue Benchmark [Member]
Other Revenues [Line Items]
Revenue					$ 0
Revenue Benchmark [Member] | Customer Concentration Risk | Minimum [Member]
Other Revenues [Line Items]
Concentration Risk, Percentage					10.00%
Pfizer [Member] | Revenue Benchmark [Member]
Other Revenues [Line Items]
Revenue	$ 19,100,000
Pfizer [Member] | Revenue Benchmark [Member] | Customer Concentration Risk
Other Revenues [Line Items]
Concentration Risk, Percentage	11.00%
Pfizer [Member] | Revenue Benchmark [Member] | Customer Concentration Risk | Minimum [Member]
Other Revenues [Line Items]
Concentration Risk, Percentage	10.00%	10.00%
Millipore Sigma [Member] | Revenue Benchmark [Member]
Other Revenues [Line Items]
Revenue				$ 29,400,000
Millipore Sigma [Member] | Revenue Benchmark [Member] | Customer Concentration Risk
Other Revenues [Line Items]
Concentration Risk, Percentage				11.00%
Millipore Sigma [Member] | Revenue Benchmark [Member] | Customer Concentration Risk | Minimum [Member]
Other Revenues [Line Items]
Concentration Risk, Percentage			10.00%	10.00%

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Changes in Carrying Value of Goodwill (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Goodwill [Line Items]
Balance at December 31, 2020	$ 618,305
Cumulative translation adjustment	(1,531)
Balance at September 30, 2021	833,559
Non Metallic Solutions
Goodwill [Line Items]
Measurement period adjustments	(71)
Balance at September 30, 2021	6,713
ARTeSYN Biosolutions
Goodwill [Line Items]
Measurement period adjustments	(60)
Balance at September 30, 2021	128,598
Polymem S.A.
Goodwill [Line Items]
Acquisition of goodwill	23,453
Balance at September 30, 2021	23,453
Avitide, Inc.
Goodwill [Line Items]
Acquisition of goodwill	193,463
Balance at September 30, 2021	$ 193,463

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Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Intangible Assets [Line Items]
Gross Carrying Value	$ 408,769	$ 340,282
Gross Carrying Value	409,469	340,982
Accumulated Amortization	(69,306)	(53,882)
Accumulated Amortization	(69,306)	(53,882)
Net Carrying Value	339,463	286,400
Net Carrying Value	$ 340,163	$ 287,100
Weighted Average Useful Life (in years)	16 years	16 years
Trademark
Intangible Assets [Line Items]
Gross Carrying Value	$ 700	$ 700
Net Carrying Value	700	700
Technology - developed
Intangible Assets [Line Items]
Gross Carrying Value	141,039	114,217
Accumulated Amortization	(19,426)	(14,444)
Net Carrying Value	$ 121,613	$ 99,773
Weighted Average Useful Life (in years)	17 years	17 years
Patents
Intangible Assets [Line Items]
Gross Carrying Value	$ 240	$ 240
Accumulated Amortization	(240)	(240)
Net Carrying Value
Weighted Average Useful Life (in years)	8 years	8 years
Customer relationships
Intangible Assets [Line Items]
Gross Carrying Value	$ 257,297	$ 217,790
Accumulated Amortization	(47,363)	(37,333)
Net Carrying Value	$ 209,934	$ 180,457
Weighted Average Useful Life (in years)	15 years	16 years
Trademarks
Intangible Assets [Line Items]
Gross Carrying Value	$ 7,367	$ 5,893
Accumulated Amortization	(771)	(541)
Net Carrying Value	$ 6,596	$ 5,352
Weighted Average Useful Life (in years)	19 years	20 years
Other intangibles
Intangible Assets [Line Items]
Gross Carrying Value	$ 2,826	$ 2,142
Accumulated Amortization	(1,506)	(1,324)
Net Carrying Value	$ 1,320	$ 818
Weighted Average Useful Life (in years)	4 years	3 years

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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Liabilities [Line Items]
Amortization expense	$ 5.7	$ 4.0	$ 16.1	$ 11.8
Impairment of intangible assets			$ 0.0		$ 0.0

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Amortization Expense for Amortized Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Finite-Lived Intangible Liabilities [Line Items]
2021 (remaining three months)	$ 7,004
2022	25,840
2023	25,722
2024	25,088
2025	24,821
2026 and thereafter	230,988
Total	$ 339,463	$ 286,400

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Schedule of Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Inventory [Line Items]
Raw materials	$ 105,157	$ 48,746
Work-in-process	7,860	8,084
Finished products	43,146	38,195
Total inventories, net	$ 156,163	$ 95,025

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Property, Plant and Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Land	$ 1,023	$ 1,023
Buildings	764	1,007
Leasehold improvements	51,778	31,331
Equipment	65,764	43,072
Furniture, fixtures and office equipment	8,355	8,714
Computer hardware and software	21,436	15,397
Construction in progress	14,723	14,927
Other	497	455
Total property, plant and equipment	164,340	115,926
Less - Accumulated depreciation	(64,688)	(49,056)
Total property, plant and equipment, net	$ 99,652	$ 66,870

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Consolidated Balance Sheet - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Depreciation	$ 4.3	$ 2.8	$ 11.3	$ 7.8

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Schedule of Accrued Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Accrued Liabilities [Line Items]
Employee compensation	$ 34,056	$ 20,288
Income taxes payable	8,435	1,423
Royalty and license fees	1,497	466
Warranties	1,759	1,576
Professional fees	2,179	1,425
Deferred revenue	16,337	15,318
Other	869	12,589
Total accrued liabilities	$ 63,394	$ 53,085

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Convertible Senior Notes - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Jul. 19, 2019	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jul. 31, 2019
Debt Instrument [Line Items]
Accretion of the debt discount			$ 8,592	$ 8,175
Repayment of convertible debt			9
Repayment of convertible debt			$ 9
0.375% Convertible Senior Notes due 2024
Debt Instrument [Line Items]
Notes issued	$ 287,500					$ 287,500
Notes, interest rate	0.375%
Proceeds from issuance of convertible senior notes, net of costs	$ 278,500
Interest repayment terms			Interest is payable semi-annually in arrears on January 15 and July 15 of each year, beginning on January 15, 2020.
Notes, due date	Jul. 15, 2024
Contractual coupon interest		$ 300	$ 800
Accretion of the debt discount		2,500	7,500
Amortization of the debt issuance costs		$ 400	$ 1,100
Effective interest rate on the Notes		5.10%	5.10%
Notes, carrying value		$ 252,300	$ 252,300		$ 243,700
Fair value of the note		732,900	732,900		$ 501,000
Additional Notes issued	$ 37,500
Debt instrument amount convertible into equity		6,000	6,000
Loss on conversion of debt included in other expenses		$ 1,000	$ 6,000
Excess common stock price percentage		130.00%

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Convertible Senior Notes - Convertible Debt (Detail) - 0.375% Convertible Senior Notes due 2024 - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount	$ 287,493	$ 287,500
Unamortized debt discount	(30,793)	(38,317)
Unamortized debt issuance costs	(4,377)	(5,446)
Net carrying amount	$ 252,323	$ 243,737

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Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2018
Stockholders Equity Note Disclosure [Line Items]
Stock-based compensation expense	$ 6,792	$ 4,225	$ 20,476	$ 12,492
Incentive options, term			10 years
Stock options, outstanding	658,600	723,914	658,600	723,914	696,711
Closing price of common stock	$ 288.99		$ 288.99
Aggregate intrinsic value of stock options exercised			$ 14,500	$ 30,700
Weighted average grant date fair value of share-based awards granted			$ 88.01	$ 48.13
Total fair value of stock options vested			$ 2,600	$ 2,600
Total unrecognized compensation cost	$ 61,300		$ 61,300
Unrecognized compensation cost, weighted average remaining requisite service period			3 years 29 days
Number of unvested options and restricted stock units	1,950,908		1,950,908
2018 Plan
Stockholders Equity Note Disclosure [Line Items]
Common stock shares reserved for Issuance						2,778,000
Employee Stock Option | Minimum
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting period			3 years
Employee Stock Option | Minimum | Vest Over Three Year
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting percentage			20.00%
Employee Stock Option | Maximum
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting period			5 years
Employee Stock Option | Maximum | Vest Over Three Year
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting percentage			33.00%
Non-Employee Directors
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting period			9 years
Unvested Options
Stockholders Equity Note Disclosure [Line Items]
Incentive options, vesting period			5 years
Restricted Stock Units and Performance Stock Units
Stockholders Equity Note Disclosure [Line Items]
Restricted stock units, outstanding	619,761	675,567	619,761	675,567	665,540
Closing price of common stock	$ 288.99		$ 288.99
Aggregate intrinsic value of restricted stock units vested			$ 39,200	$ 25,000
Weighted average grant date fair value of restricted stock units granted			$ 58.10	$ 43.73
Total grant date fair value of restricted stock units vested			$ 10,800	$ 9,800

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Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 6,792	$ 4,225	$ 20,476	$ 12,492
Cost of product revenue
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	489	563	1,444	1,421
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	698	326	2,209	1,092
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 5,605	$ 3,336	$ 16,823	$ 9,979

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Summary of Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands		9 Months Ended	12 Months Ended
		Sep. 30, 2021	Dec. 31, 2020
Options Outstanding
Options outstanding at December 31, 2020 | shares		696,711
Granted | shares		38,824
Exercised | shares		(70,935)
Forfeited/expired/cancelled		(6,000)
Options outstanding at September 30, 2021 | shares		658,600	696,711
Options exercisable at September 30, 2021 | shares		343,909
Vested and expected to vest at September 30, 2021(1) | shares	[1]	637,504
Weighted-Average Exercise Price Per Share
Options outstanding at December 31, 2020		$ 43.88
Granted		202.88
Exercised		28.00
Forfeited/expired/cancelled		48.05
Options outstanding at September 30, 2021		54.93	$ 43.88
Options exercisable at September 30, 2021		$ 38.68
Weighted-Average Remaining Contractual Term (in years)
Options outstanding		6 years 6 months 18 days	6 years 10 months 24 days
Options exercisable at September 30, 2021		5 years 10 months 13 days
Vested and expected to vest at September 30, 2021	[1]	6 years 6 months 10 days
Aggregate Intrinsic Value
Options outstanding		$ 154,152	$ 102,958
Options exercisable at September 30, 2021		86,085
Vested and expected to vest at September 30, 2021	[1]	$ 149,348

[1] Represents the number of vested options as of September 30, 2021 plus the number of unvested options expected to vest as of September 30, 2021 based on the unvested outstanding options at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

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Summary of Option Activity (Parenthetical) (Detail) - Employee Stock Option	Sep. 30, 2021
Awards Granted to Non-Executive Level Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rates	8.00%
Awards Granted to Executive Level Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rates	3.00%

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Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock Units and Performance Stock Units - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
		Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Options Outstanding
Unvested at December 31, 2020		665,540
Awarded		164,968
Vested		(185,922)
Forfeited/expired/cancelled		(24,825)
Unvested at September 31, 2021		619,761	665,540	675,567
Unvested and expected to vest at September 30, 2021	[1]	623,642
Weighted-Average Remaining Contractual Term (in years)
Unvested at December 31, 2020		2 years 11 months 8 days	3 years 3 months 25 days
Unvested and expected to vest at June 30, 2021	[1]	2 years 7 months 9 days
Aggregate Intrinsic Value
Unvested at September 31, 2021		$ 179,105	$ 127,904
Unvested and expected to vest at September 30, 2021(1)	[1]	$ 180,226

[1] Represents the number of vested options as of September 30, 2021 plus the number of unvested options expected to vest as of September 30, 2021 based on the unvested outstanding options at September 30, 2021 adjusted for estimated forfeiture rates of 8% for awards granted to non-executive level employees and 3% for awards granted to executive level employees.

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Summary of Restricted Stock Unit Activity (Parenthetical) (Detail) - Restricted Stock Units and Performance Stock Units	Sep. 30, 2021
Awards Granted to Non-Executive Level Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rates	8.00%
Awards Granted to Executive Level Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Estimated forfeiture rates	3.00%

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
NGL Impact A [Member] | Research and Development Arrangement [Member]
Commitments and Contingencies [Line Items]
Payments to Navigo in connection with this program, which are recorded to research and development expenses	$ 0.5	$ 0.2	$ 1.3	$ 0.4

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Change in Accumulated Other Comprehensive Loss (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2021 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 1,529,150
Ending Balance	1,715,265
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	2,085
Other comprehensive loss	(12,004)
Ending Balance	$ (9,919)

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Taxes [Line Items]
Corporate tax rate	21.00%	21.00%	21.00%	21.00%
Income tax (benefit) provision	18.80%	18.00%	16.40%	9.50%
Income tax provision	$ 7,734	$ 3,191	$ 19,514	$ 4,211

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Earnings Per Share - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 20, 2021	Dec. 31, 2020	Jul. 31, 2019	Jul. 19, 2019
Stock options, outstanding	658,600	723,914	658,600	723,914		696,711
Stock options, weighted average exercise price	$ 54.93	$ 41.03	$ 54.93	$ 41.03		$ 43.88
Common stock excluded from calculation of diluted earnings per share	44,912	60,202	63,770	117,160
Dilutive effect on shares of conversion premium	1,373,341	0	1,180,425	0
Contingent consideration obligation for earnout payments					$ 80.0
0.375% Convertible Senior Notes due 2024
Principal amount							$ 287.5	$ 287.5
Restricted Stock Units and Performance Stock Units
Restricted stock units, outstanding	619,761	675,567	619,761	675,567		665,540

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Earnings Per Share - Reconciliation of Basic and Diluted Shares Amounts (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Net income	$ 33,498	$ 14,552	$ 99,181	$ 40,228
Weighted average shares used in computing net income per share - basic	55,015	52,545	54,918	52,341
Effect of dilutive shares:
Options and stock units	919	916	913	951
Convertible senior notes	1,373	8	1,180	8
Dilutive effect of unvested performance stock units	61	0	61	0
Dilutive potential common shares	2,353	924	2,154	959
Weighted average shares used in computing net income per share - diluted	57,368	53,469	57,072	53,300
Earnings per share:
Basic	$ 0.61	$ 0.28	$ 1.81	$ 0.77
Diluted	$ 0.58	$ 0.27	$ 1.74	$ 0.75

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Related Party Transactions - Additional Information (Detail) - Spectrum Inc. - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Related Party Transaction [Line Items]
Rent expense	$ 0.2	$ 0.1	$ 0.5	$ 0.5
Principal Owner | Minimum
Related Party Transaction [Line Items]
Non controlling ownership interest minimum	5.00%		5.00%

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Segment Reporting - Additional Information (Detail)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) Segment	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Number of operating segments | Segment			1
Revenue	$ 178,216,000	$ 94,060,000	$ 484,013,000	$ 257,612,000
Sales Revenue
Revenue					$ 0
Sales Revenue | Millipore Sigma [Member]
Revenue				$ 29,400,000
Sales Revenue | Pfizer [Member]
Revenue	$ 19,100,000
Customer Concentration Risk | Sales Revenue | Minimum [Member]
Accounts receivable, percentage by customer					10.00%
Customer Concentration Risk | Sales Revenue | Millipore Sigma [Member]
Accounts receivable, percentage by customer				11.00%
Customer Concentration Risk | Sales Revenue | Millipore Sigma [Member] | Minimum [Member]
Accounts receivable, percentage by customer			10.00%	10.00%
Customer Concentration Risk | Sales Revenue | Pfizer [Member]
Accounts receivable, percentage by customer	11.00%
Customer Concentration Risk | Sales Revenue | Pfizer [Member] | Minimum [Member]
Accounts receivable, percentage by customer	10.00%	10.00%

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Segment Reporting - Percentage of Revenue by Geographic Area (Detail) - Geographic Concentration Risk - Total Revenue	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Concentration Risk [Line Items]
Revenues, percentage by country	100.00%	100.00%	100.00%	100.00%
North America
Concentration Risk [Line Items]
Revenues, percentage by country	44.00%	50.00%	42.00%	48.00%
Europe
Concentration Risk [Line Items]
Revenues, percentage by country	42.00%	36.00%	40.00%	38.00%
APAC/Other
Concentration Risk [Line Items]
Revenues, percentage by country	14.00%	14.00%	18.00%	14.00%

XML

Segment Reporting - Percentage of Revenue from Significant Customers (Detail) - Customer Concentration Risk	3 Months Ended	9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Sales Revenue | Pfizer
Revenue, Major Customer [Line Items]
Revenues, percentage by country	11.00%
Sales Revenue | MilliporeSigma
Revenue, Major Customer [Line Items]
Revenues, percentage by country			11.00%
Trade Accounts Receivable | Pfizer
Revenue, Major Customer [Line Items]
Revenues, percentage by country		10.00%
Trade Accounts Receivable | Cytiva
Revenue, Major Customer [Line Items]
Revenues, percentage by country				11.00%