10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended September 30, 2023

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: 001-39293

Inari Medical, Inc.

(Exact Name of Registrant as Specified in its Charter)

Delaware	45-2902923
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
6001 Oak Canyon, Suite 100 Irvine, California	92618
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (877) 923-4747

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, $0.001 par value per share	NARI	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	☐

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 ☒

As of October 27, 2023, the registrant had 57,590,463 shares of common stock, $0.001 par value per share, outstanding.

Table of Contents

		Page
PART I.	FINANCIAL INFORMATION
Item 1.	Condensed Consolidated Financial Statements (Unaudited)	3
	Condensed Consolidated Balance Sheets	3
	Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)	4
	Condensed Consolidated Statements of Stockholders’ Equity	5
	Condensed Consolidated Statements of Cash Flows	7
	Notes to Unaudited Condensed Consolidated Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	30
Item 4.	Controls and Procedures	30
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	32
Item 1A.	Risk Factors	32
Item 2.	Unregistered Sales of Equity Securities, Use of Proceeds and Issuer Purchases of Equity Securities	32
Item 3.	Defaults Upon Senior Securities	32
Item 4.	Mine Safety Disclosures	32
Item 5.	Other Information	32
Item 6.	Exhibits	33
Signatures		34

i

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q contains forward-looking statements. We intend the forward-looking statements contained in this Quarterly Report to be covered by the safe harbor provisions for forward-looking statements contained in Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. All statements other than statements of historical facts contained in this Quarterly Report are forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “would,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions, although not all forward-looking statements contain these words. Forward-looking statements contained in this Quarterly Report include, without limitation, statements regarding our business model and strategic plans for our products, anticipated closing of the acquisition of LimFlow, S.A., technologies and business, including our implementation thereof, the impact of macroeconomic conditions on our business, financial condition and results of operations, industry and business trends, our expectations regarding stock compensation, business strategy, plans, market growth, regulatory climate, competitive landscape and our objectives for future operations.

The forward-looking statements in this Quarterly Report are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and trends that we believe may affect our business, financial condition, results of operations. Forward-looking statements involve known and unknown risks and uncertainties, and are subject to other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, those discussed in Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022, as such risks and uncertainties may be amended, supplemented or superseded from time to time by our subsequent reports on Forms 10-Q and 10-K we file with the United States Securities and Exchange Commission. We qualify all of our forward-looking statements by these cautionary statements. Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make.

The forward-looking statements in this Quarterly Report on Form 10-Q are based upon information available to us as of the date of this Quarterly Report on Form 10-Q, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements. You should read this Quarterly Report on Form 10-Q and the documents that we reference in this Quarterly Report on Form 10-Q and have filed as exhibits to this Quarterly Report on Form 10-Q with the understanding that our actual future results, levels of activity, performance and achievements may be materially different from what we expect. These forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

ii

PART I — FINANCIAL INFORMATION

Item 1. Condensed Consolidated Financial Statements (Unaudited)

INARI MEDICAL, INC.

Condensed Consolidated Balance Sheets

(in thousands, except share data and par value)

(unaudited)

	September 30, 2023		December 31, 2022
Assets
Current assets
Cash and cash equivalents	$	89,182	$	60,222
Short-term investments in debt securities	262,113		266,179
Accounts receivable, net	69,595		58,611
Inventories, net	40,227		32,581
Prepaid expenses and other current assets	7,944		5,312
Total current assets	469,061		422,905
Property and equipment, net	21,243		21,655
Operating lease right-of-use assets	49,065		50,703
Deposits and other assets	9,466		8,889
Total assets	$	548,835	$	504,152
Liabilities and Stockholders' Equity
Current liabilities
Accounts payable	$	10,091	$	7,659
Payroll-related accruals	41,305		38,955
Accrued expenses and other current liabilities	13,040		8,249
Operating lease liabilities, current portion	1,630		1,311
Total current liabilities	66,066		56,174
Operating lease liabilities, noncurrent portion	30,627		30,976
Total liabilities	96,693		87,150
Commitments and contingencies (Note 7)
Stockholders' equity
Preferred stock, $0.001 par value, 10,000,000 shares authorized, no shares issued and outstanding as of September 30, 2023 and December 31, 2022	—		—
Common stock, $0.001 par value, 300,000,000 shares authorized as of September 30, 2023 and December 31, 2022; 57,506,462 and 54,021,656 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	58		54
Additional paid in capital	497,063		462,949
Accumulated other comprehensive (loss) income	(1,158)		849
Accumulated deficit	(43,821)		(46,850)
Total stockholders' equity	452,142		417,002
Total liabilities and stockholders' equity	$	548,835	$	504,152

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

3

INARI MEDICAL, INC.

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss)

(in thousands, except share and per share data)

(unaudited)

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Revenue	$	126,366	$	96,204	$	361,538	$	275,700
Cost of goods sold	14,477		11,064		42,062		31,378
Gross profit	111,889		85,140		319,476		244,322
Operating expenses
Research and development	21,492		19,105		64,641		53,809
Selling, general and administrative	88,284		75,833		259,570		212,721
Total operating expenses	109,776		94,938		324,211		266,530
Income (loss) from operations	2,113		(9,798)		(4,735)		(22,208)
Other income (expense)
Interest income	4,202		618		12,899		882
Interest expense	(43)		(74)		(127)		(220)
Other (expense) income	(682)		(59)		(617)		169
Total other income	3,477		485		12,155		831
Income (loss) before income taxes	5,590		(9,313)		7,420		(21,377)
Provision for income taxes	2,428		840		4,391		2,092
Net income (loss)	$	3,162	$	(10,153)	$	3,029	$	(23,469)
Other comprehensive income (loss)
Foreign currency translation adjustments	(68)		(406)		(138)		(814)
Unrealized gain (loss) on available-for-sale debt securities	91		644		(1,869)		271
Total other comprehensive income (loss)	23		238		(2,007)		(543)
Comprehensive income (loss)	$	3,185	$	(9,915)	$	1,022	$	(24,012)
Net income (loss) per share
Basic	$	0.06	$	(0.19)	$	0.05	$	(0.45)
Diluted	$	0.05	$	(0.19)	$	0.05	$	(0.45)
Weighted average common shares used to compute net income (loss) per share
Basic	57,384,884		53,491,625		56,478,317		52,552,662
Diluted	58,588,452		53,491,625		58,495,921		52,552,662

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

4

INARI MEDICAL, INC.

Condensed Consolidated Statements Stockholders’ Equity

(in thousands, except share data)

(unaudited)

	Common Stock			Additional Paid In Capital		Accumulated Other Comprehensive Income (Loss)		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2022	54,021,656	$	54	$	462,949	$	849	$	(46,850)	$	417,002
Options exercised for common stock	209,966	—		226		—		—		226
Shares issued under Employee Stock Purchase Plan	86,051	—		4,172		—		—		4,172
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	2,766,043	3		(1,932)		—		—		(1,929)
Share-based compensation expense	—	—		10,339		—		—		10,339
Other comprehensive loss	—	—		—		(856)		—		(856)
Net loss	—	—		—		—		(2,218)		(2,218)
Balance, March 31, 2023	57,083,716	57		475,754		(7)		(49,068)		426,736
Options exercised for common stock	81,712	—		214		—		—		214
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	101,027	—		(2,569)		—		—		(2,569)
Share-based compensation expense	—	—		10,353		—		—		10,353
Other comprehensive loss	—	—		—		(1,174)		—		(1,174)
Net income	—	—		—		—		2,085		2,085
Balance, June 30, 2023	57,266,455	57		483,752		(1,181)		(46,983)		435,645
Options exercised for common stock	43,547	—		107		—		—		107
Shares issued under Employee Stock Purchase Plan	118,494	1		5,748		—		—		5,749
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	77,966	—		(2,388)		—		—		(2,388)
Share-based compensation expense	—	—		9,844		—		—		9,844
Other comprehensive income	—	—		—		23		—		23
Net income	—	—		—		—		3,162		3,162
Balance, September 30, 2023	57,506,462	$	58	$	497,063	$	(1,158)	$	(43,821)	$	452,142

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

5

INARI MEDICAL, INC.

Condensed Consolidated Statements Stockholders’ Equity

(in thousands, except share data)

(unaudited)

	Common Stock			Additional Paid In Capital		Accumulated Other Comprehensive Income (Loss)		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2021	50,313,452	$	50	$	257,144	$	(402)	$	(17,583)	$	239,209
Options exercised for common stock	322,882	1		344		—		—		345
Shares issued under Employee Stock Purchase Plan	54,808	—		3,427		—		—		3,427
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	31,763	—		(1,624)		—		—		(1,624)
Issuance of common stock in public offering, net of issuance costs of $11.9 million	2,300,000	2		174,392						174,394
Share-based compensation expense	—	—		6,555		—		—		6,555
Other comprehensive loss	—	—		—		(365)		—		(365)
Net loss	—	—		—		—		(3,129)		(3,129)
Balance, March 31, 2022	53,022,905	53		440,238		(767)		(20,712)		418,812
Options exercised for common stock	228,313	—		156		—		—		156
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	54,607	—		(1,751)		—		—		(1,751)
Share-based compensation expense	—	—		7,164		—		—		7,164
Other comprehensive loss	—	—		—		(416)		—		(416)
Net loss	—	—		—		—		(10,187)		(10,187)
Balance, June 30, 2022	53,305,825	53		445,807		(1,183)		(30,899)		413,778
Options exercised for common stock	167,102	—		109		—		—		109
Shares issued under Employee Stock Purchase Plan	78,707	—		4,995		—		—		4,995
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	43,643	—		(1,224)		—		—		(1,224)
Share-based compensation expense	—	—		7,356		—		—		7,356
Other comprehensive income	—	—		—		238		—		238
Net loss	—	—		—		—		(10,153)		(10,153)
Balance, September 30, 2022	53,595,277	$	53	$	457,043	$	(945)	$	(41,052)	$	415,099

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

6

INARI MEDICAL, INC.

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Nine Months Ended September 30,
	2023		2022
Cash flows from operating activities
Net income (loss)	$	3,029	$	(23,469)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	4,186		3,430
Amortization of deferred financing costs	30		108
Amortization of right-of-use assets	3,099		1,799
Share-based compensation expense	30,536		21,075
Impairment loss on strategic investment	565		—
Allowance for credit losses, net	526		341
Loss on disposal of fixed assets	26		23
Amortization of premium and discount on marketable securities	(11,407)		—
Changes in:
Accounts receivable	(11,566)		(12,220)
Inventories	(7,797)		(8,706)
Prepaid expenses, deposits and other assets	4,294		(1,537)
Accounts payable	2,436		(441)
Payroll-related accruals, accrued expenses and other liabilities	7,218		(562)
Operating lease liabilities	(1,031)		(565)
Lease prepayments for lessor's owned leasehold improvements	(458)		(4,503)
Net cash provided by (used in) operating activities	23,686		(25,227)
Cash flows from investing activities
Purchases of property and equipment	(3,801)		(8,173)
Purchases of marketable securities	(394,496)		(332,103)
Maturities of marketable securities	400,560		184,000
Purchases of other investments	(565)		(5,693)
Net cash provided by (used in) investing activities	1,698		(161,969)
Cash flows from financing activities
Proceeds from issuance of common stock in public offering, net of issuance costs of $11.9 million	—		174,394
Proceeds from issuance of common stock under employee stock purchase plan	9,920		8,422
Proceeds from exercise of stock options	547		610
Payment of taxes related to vested restricted stock units	(6,886)		(4,599)
Net cash provided by financing activities	3,581		178,827
Effect of foreign exchange rate changes on cash and cash equivalents	(5)		(855)
Net increase (decrease) in cash and cash equivalents	28,960		(9,224)
Cash and cash equivalents beginning of period	60,222		92,752
Cash and cash equivalents end of period	$	89,182	$	83,528

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

7

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

1. ORGANIZATION

Description of Business

Inari Medical, Inc. (the “Company”) was incorporated in Delaware in July 2011 and is headquartered in Irvine, California. The Company purpose builds minimally invasive, novel, catheter-based mechanical thrombectomy systems for the unique characteristics of specific disease states.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and include the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The interim condensed consolidated balance sheet as of September 30, 2023 and the condensed consolidated statements of operations and comprehensive income (loss), stockholders’ equity, and cash flows for the three and nine months ended September 30, 2023 and 2022 are unaudited. The consolidated balance sheet as of December 31, 2022 included herein was derived from the audited consolidated financial statements as of that date. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the annual consolidated financial statements and reflect, in the opinion of management, all adjustments of a normal and recurring nature that are necessary for the fair presentation of the Company’s condensed consolidated financial position as of September 30, 2023 and its consolidated results of operations and cash flows for the three and nine months ended September 30, 2023 and 2022. The financial data and the other financial information disclosed in the notes to the condensed consolidated financial statements related to the three and nine months ended September 30, 2023 and 2022 are also unaudited. The condensed consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future annual or interim period. These interim condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

Management Estimates

The preparation of financial statements in conformity with U.S. 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 revenue and expenses during the reporting period. Significant estimates and assumptions made in the accompanying condensed consolidated financial statements may include, but are not limited to, collectability of receivables, recoverability of long-lived assets, valuation of inventory, operating lease right-of-use (“ROU”) assets and liabilities, other investments, fair value of stock options, recoverability of net deferred tax assets and related valuation allowance, and certain accruals. Estimates are based on historical experience and on various assumptions that the Company believes are reasonable under current circumstances. Actual results could differ materially from those estimates. Management periodically evaluates such estimates and assumptions, and they are adjusted prospectively based upon such periodic evaluation.

Revenue Recognition

The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers. Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to

8

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation.

The Company sells its products primarily to hospitals in the United States through its direct sales force. The Company recognizes revenue for arrangements where the Company has satisfied its performance obligation of shipping or delivering the product. For sales where the Company’s sales representatives hand-deliver products directly to the hospitals, control of the products transfers to the customers upon such hand- delivery. For sales where products are shipped, control of the products transfers either upon shipment or delivery of the products to the customer, depending on the shipping terms and conditions. Revenue from product sales is comprised of product revenue, net of product returns, discounts, administrative fees and sales rebates.

Performance Obligation—The Company has revenue arrangements that consist of a single performance obligation, the shipping or delivery of the Company’s products. The satisfaction of this performance obligation occurs with the transfer of control of the Company’s product to its customers, either upon shipment or delivery of the product.

Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. The amount of revenue recognized is based on the transaction price, which represents the invoiced amount, net of discounts, administrative fees and sales rebates, where applicable. The Company provides a standard 30-day unconditional right of return period. The Company establishes estimated provisions for returns at the time of sale based on historical experience. Historically, the actual product returns have been immaterial to the Company’s consolidated financial statements.

As of September 30, 2023 and December 31, 2022, the Company recorded $1,324,000 and $1,218,000, respectively, of unbilled receivables, which are included in accounts receivable, net, in the accompanying condensed consolidated balance sheets.

The Company disaggregates revenue by product. Revenue for ClotTriever and other systems and FlowTriever system as a percentage of total revenue is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
ClotTriever and other systems	32	%	31	%	34	%	32	%
FlowTriever system	68	%	69	%	66	%	68	%

Revenue from the Company's products by geographic area, based on the location where title transfers, is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
United States	$	119,825	$	93,597	$	345,473	$	269,584
International	6,541		2,607		16,065		6,116
Total revenue	$	126,366	$	96,204	$	361,538	$	275,700

The Company offers payment terms to its customers of less than three months and these terms do not include a significant financing component. The Company excludes taxes assessed by governmental authorities on revenue-producing transactions from the measurement of the transaction price.

The Company offers its standard warranty to all customers. The Company does not sell any warranties on a standalone basis. The Company’s warranty provides that its products are free of material defects and conform to specifications, and includes an offer to repair, replace or refund the purchase price of defective products. This assurance does not constitute a service and is not considered a separate performance obligation. The Company estimates warranty liabilities at the time of revenue recognition and records it as a charge to cost of goods sold. The warranty expense recognized was $57,000 and $165,000 during the three months ended

9

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

September 30, 2023 and 2022, respectively, and $411,000 and $374,000 for the nine months ended September 30, 2023 and 2022, respectively.

Costs associated with product sales include commissions and are recorded in selling, general and administrative (“SG&A”) expenses. The Company applies the practical expedient and recognizes commissions as an expense when incurred because the amortization period is less than one year.

Equity Investments

The Company has strategic investments in certain privately-held companies, with no readily determinable fair value. The Company measures these investments at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment. The Company will monitor the information that becomes available from time to time and adjust the carrying values of these investments if there are identified events or changes in circumstances that have a significant adverse effect on the fair values. Impairment loss, which is generally the difference between the carrying value and the fair value of the investment, is recorded in other income (expense) in the Statements of Operations and Comprehensive Income. As of September 30, 2023 and December 31, 2022, the Company’s equity investments were $8.3 million and were included in deposits and other assets on the condensed consolidated balance sheets. Additionally, during the three and nine months ended September 30, 2023, the Company recorded an impairment loss of $0.6 million in other income (expense) in the Statement of Operations and Comprehensive Income. There was no impairment loss recorded during the three and nine months ended September 30, 2022.

Supplemental Cash Flow Information

Supplemental cash flow information includes the following:

	Nine Months Ended September 30,
	2023		2022
Supplemental disclosures of cash flow information:
Cash paid for income taxes	$	3,562	$	3,085
Cash paid for interest	$	98	$	112
Noncash investing and financing:
Lease liabilities arising from obtaining new right-of-use assets	$	1,030	$	2,334

3. FAIR VALUE MEASUREMENTS

Investments in debt securities have been classified as available-for-sale and are carried at estimated fair value as determined based upon quoted market prices or pricing models for similar securities. As of September 30, 2023, all of the Company's investments in debt securities had maturities of less than 12 months and were classified as short-term investments on the condensed consolidated balance sheets.

10

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

The following tables summarize the Company’s financial assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	—		3,489		—		3,489
Total included in cash and cash equivalents	41,561		3,489		—		45,050
Investments:
U.S. Treasury securities	173,687		—		—		173,687
U.S. Government agencies	—		46,284		—		46,284
Corporate debt securities and commercial paper	—		42,142		—		42,142
Total included in short-term investments	173,687		88,426		—		262,113
Total financial assets	$	215,248	$	91,915	$	—	$	307,163

	December 31, 2022
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	172,088		—		—		172,088
U.S. Government agencies	—		47,131		—		47,131
Corporate debt securities and commercial paper	—		46,960		—		46,960
Total included in short-term investments	172,088		94,091		—		266,179
Total financial assets	$	192,417	$	94,091	$	—	$	286,508

There were no transfers between Levels 1, 2 or 3 for the periods presented.

11

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

4. CASH EQUIVALENTS AND INVESTMENTS

The following is a summary of the Company’s cash equivalents and investments in debt securities as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	3,490		—		(1)		3,489
Total included in cash and cash equivalents	45,051		—		(1)		45,050
Investments:
U.S. Treasury securities	173,690		9		(12)		173,687
U.S. Government agencies	46,309		7		(32)		46,284
Corporate debt securities and commercial paper	42,162		—		(20)		42,142
Total included in short-term investments	262,161		16		(64)		262,113
Total financial assets	$	307,212	$	16	$	(65)	$	307,163

	December 31, 2022
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	171,006		1,120		(38)		172,088
U.S. Government agencies	46,777		354		—		47,131
Corporate debt securities and commercial paper	46,576		397		(13)		46,960
Total included in short-term investments	264,359		1,871		(51)		266,179
Total financial assets	$	284,688	$	1,871	$	(51)	$	286,508

The Company regularly reviews any changes to the rating of its debt securities and reasonably monitors the surrounding economic conditions to assess the risk of expected credit losses. As of September 30, 2023, the risk of expected credit losses was not significant.

5. INVENTORIES, NET

Inventories, net of reserves, consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Raw materials	$	14,278	$	13,943
Work-in-process	4,117		3,396
Finished goods	21,832		15,242
Total inventories, net	$	40,227	$	32,581

12

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

6. PROPERTY AND EQUIPMENT, NET

Property and equipment consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Manufacturing equipment	$	15,827	$	13,585
Computer hardware	5,522		5,123
Leasehold improvements	5,248		5,040
Furniture and fixtures	4,380		4,119
Assets in progress	2,041		2,516
Capitalized software	881		—
Computer software	—		100
Total property and equipment, gross	33,899		30,483
Accumulated depreciation	(12,656)		(8,828)
Total property and equipment, net	$	21,243	$	21,655

Depreciation expense of $1,141,000 and $947,000 was included in operating expenses and $291,000 and $223,000 was included in cost of goods sold for the three months ended September 30, 2023 and 2022, respectively. Depreciation expense of $3,367,000 and $2,774,000 was included in operating expenses and $819,000 and $656,000 was included in cost of goods sold for the nine months ended September 30, 2023 and 2022, respectively.

7. COMMITMENTS AND CONTINGENCIES

Operating Leases

The Company has operating leases for facilities and certain equipment. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet. Lease expense for operating leases is recognized on a straight-line basis over the lease term. For lease agreements, other than long-term real estate leases, the Company combines lease and non-lease components. The operating leases for facilities expire at various dates through July 2041 and some contain renewal options, the longest of which is for five years. The ROU asset and lease liability includes renewal options if the Company is reasonably certain to exercise such renewal options.

As of September 30, 2023, the aggregate operating lease ROU assets and lease liabilities were $49.1 million and $32.3 million, respectively, with the weighted average remaining lease term of 18.2 years. As of December 31, 2022, the aggregate operating lease ROU asset and lease liabilities were $50.7 million and $32.3 million, respectively, with the weighted average remaining lease term of 17.1 years.

As of September 30, 2023, the weighted average incremental borrowing rate used to measure operating lease liabilities was 6.05%. Cash paid for amounts included in the measurement of operating lease liabilities was $866,000 and $705,000 for the three months ended September 30, 2023 and 2022, respectively, and $2,564,000 and $2,030,000 for the nine months ended September 30, 2023 and 2022, respectively.

Total lease costs are as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Operating lease cost	$	1,137	$	1,039	$	3,456	$	3,139
Short-term lease cost	22		147		85		192
Variable lease cost	402		181		809		477
Total lease costs	$	1,561	$	1,367	$	4,350	$	3,808

13

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

Future minimum lease payments under operating leases liabilities as of September 30, 2023 are as follows (in thousands):

Year ending December 31:	Amount
Remainder of 2023	$	877
2024	3,546
2025	3,032
2026	2,911
2027	2,978
Thereafter	38,507
Total lease payments	51,851
Less imputed interest	(19,594)
Total lease liabilities	32,257
Less: lease liabilities - current portion	(1,630)
Lease liabilities - noncurrent portion	$	30,627

The Company signed a ten-year lease for real estate in October 2023, with total undiscounted contractual payments for the three year term of the lease of $7.2 million, which are expected to commence in October 2024.

Indemnification

In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and may provide for general indemnifications. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future but have not yet been made. To date, the Company has not been subject to any claims or required to defend any action related to its indemnification obligations.

The Company’s amended and restated certificate of incorporation contains provisions limiting the liability of directors, and its amended and restated bylaws provide that the Company will indemnify each of its directors to the fullest extent permitted under Delaware law. The Company’s amended and restated certificate of incorporation and amended and restated bylaws also provide its board of directors with discretion to indemnify its officers and employees when determined appropriate by the board. In addition, the Company has entered and expects to continue to enter into agreements to indemnify its directors and executive officers.

Legal Proceedings

From time to time, the Company may become involved in legal proceedings arising out of the ordinary course of its business. Management is currently not aware of any matters that will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Company.

Licensed Technology

In December 2021, the Company entered into an exclusive, perpetual, royalty free, technology license agreement for use in a particular research and development project that requires total payments of approximately $4.2 million payable in three installments due in 2022 and 2023. The Company accounted for the purchase as a research and development expense as it was determined to have no alternative future use. As of September 30, 2023, there was no outstanding balance as the Company satisfied its last installment payment during the three months ended September 30, 2023. As of December 31, 2022, the outstanding balance was approximately $1.3 million which was included in accrued expenses and other current liabilities on the condensed consolidated balance sheets.

14

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

Sublicense Agreement

In August 2019, the Company entered into a sublicense agreement with Inceptus Medical, LLC (“Inceptus”), pursuant to which Inceptus granted to the Company a non-transferable, worldwide, exclusive sublicense to its licensed intellectual property rights related to the tubular braiding for the non-surgical removal of clots and treatment of embolism and thrombosis in human vasculature other than carotid arteries, coronary vasculature and cerebral vasculature.

Under the sublicense agreement, the Company was required to pay an ongoing quarterly administration fee, which amounted to nil and $29,000 for the three months ended September 30, 2023 and 2022 respectively, and $59,000 and $87,000 for the nine months ended September 30, 2023 and 2022 respectively. Additionally, the Company was obligated to pay an ongoing royalty ranging from 1.0% to 1.5% of the net sales of products utilizing the licensed intellectual property, subject to a minimum royalty quarterly fee of $1,500. In June 2023, the sublicense agreement was terminated and the Company is no longer required to pay any ongoing administration or royalty fees following the termination.

The Company recorded royalty expense of $1,500 to cost of goods sold for both the three months ended September 30, 2023 and 2022, and recorded $5,000 and $215,000 for the nine months ended September 30, 2023 and 2022, respectively.

Self-Insured Health Plan

As of January 1, 2023, the Company implemented a self-insurance program to cover employees and their dependent health benefits, including medical, dental and vision. As part of the program, the Company also has stop-loss coverage from a third party which limits the exposure to large claims. The Company records a liability associated with these benefits that includes an estimate of both claims filed and losses incurred but not yet reported based on historical claims experience. In estimating this accrual, the Company utilizes an independent third-party broker to estimate a range of expected losses, which are based on analyses of historical data. The assumptions are closely monitored and adjusted when necessary by changing circumstances. If the liability generated from incurred claims exceeds the expense recorded, the Company may record an additional expense. As of September 30, 2023, the Company's self-insurance liability, inclusive of administrative fees, was $2.1 million, which is included in accrued expenses and other current liabilities on the condensed consolidated balance sheets.

8. CONCENTRATIONS

The Company’s revenue is derived primarily from the sale of catheter-based therapeutic devices in the United States. For the three and nine months ended September 30, 2023 and 2022, there were no customers which accounted for more than 10% of the Company’s revenue. As of September 30, 2023 and December 31, 2022, there were no customers that accounted for more than 10% of the Company’s accounts receivable.

No vendor accounted for more than 10% of the Company’s purchases for the three and nine months ended September 30, 2023 and 2022. There were no vendors that accounted for more than 10% of the Company’s accounts payable as of September 30, 2023 and December 31, 2022.

In early 2023, certain U.S. banks failed and the regulators appointed the Federal Deposit Insurance Corporation (“FDIC”) to act as receiver, which created significant market disruption and uncertainty with respect to the financial condition of the banking institutions in the U.S. While the Company does not have any direct exposure to these banks, the Company does maintain its cash and cash equivalents at multiple financial institutions in excess of the current FDIC insurance limits.

15

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

9. RELATED PARTY

The Company utilizes MRI The Hoffman Group (“MRI”), a recruiting services company owned by the brother of the former Chief Executive Officer and President and current member of the board of directors of the Company. The Company paid for recruiting services provided by MRI amounting to $67,000 and $70,000 for the three months ended September 30, 2023 and 2022, respectively, and $147,000 and $262,000 for the nine months ended September 30, 2023 and 2022, respectively, which was included in SG&A expenses on the condensed consolidated statements of operations and comprehensive income (loss). As of September 30, 2023 and December 31, 2022, there was no balance payable to MRI.

10. CREDIT FACILITY

Bank of America Credit Facility

On December 16, 2022, the Company amended its senior secured revolving credit facility with Bank of America (the “Amended Credit Agreement”) to, among other things, increase the amount available for borrowing to up to a maximum principal amount of $40.0 million and increase the optional accordion to $120.0 million. The Amended Credit Agreement matures on December 16, 2027. The amount available to borrow under the Amended Credit Agreement as of September 30, 2023 is approximately $37.6 million, comprised of: a) 90% of eligible accounts receivable, plus b) pledged cash (up to $10.0 million).

Advances under the Amended Credit Agreement will bear interest at a base rate per annum (the “Base Rate”) plus an applicable margin (the “Margin”). The Base Rate equals the greater of (i) the Prime Rate, (ii) the Federal funds rate, plus 0.50%, or (iii) the Bloomberg Short-Term Bank Yield Index (“BSBY”) rate based upon an interest period of one month plus 1.00%, in any case has a floor of 0%. The Margin ranges, depending on average daily availability, from 0.50% to 1.00% in the case of Prime Rate and the Federal funds rate loans, and from 1.50% to 2.00% in the case of BSBY Rate loans. As a condition to entering into the Amended Credit Agreement, the Company was obligated to pay a nonrefundable fee of $10,000. The Company is also required to pay an unused line fee at an annual rate of 0.25% per annum of the average daily unused portion of the aggregate revolving credit commitments under the Amended Credit Agreement.

The Amended Credit Agreement also includes a Letter of Credit subline facility (the “LC Facility”) of up to $5.0 million. In February 2023, the Company amended the LC Facility to increase the limit to up to $10.0 million. The aggregate stated amount outstanding of letters of credit reduces the total borrowing base available under the Amended Credit Agreement. The Company is required to pay the following fees under the LC Facility: (a) a fee equal to the applicable margin in effect for BSBY loans (currently 2.25%) times the average daily stated amount of outstanding letters of credit; and (b) a fronting fee equal to 0.125% per annum on the stated amount of each letter of credit outstanding. As of September 30, 2023, the Company had four letters of credit in the aggregated amount of $2.4 million outstanding under the LC Facility.

The Amended Credit Agreement contains certain customary covenants subject to certain exceptions, including, among others, the following: a fixed charge coverage ratio covenant, and limitations of indebtedness, liens, investments, asset sales, mergers, consolidations, liquidations, dispositions, restricted payments, transactions with affiliates and prepayments of certain debt. The Amended Credit Agreement also contains certain events of default subject to certain customary grace periods, including, among others, payment defaults, breaches of any representation, warranty or covenants, judgment defaults, cross defaults to certain other contracts, bankruptcy and insolvency defaults, material judgment defaults and a change of control default.

As of September 30, 2023, there was no principal amount outstanding and no cash was pledged under the Amended Credit Agreement, and the Company was in compliance with its covenant requirement. Obligations under the Credit Agreement are secured by substantially all of the Company’s assets, excluding intellectual property.

16

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

11. STOCKHOLDER'S EQUITY

Common Stock

In March 2022, the Company completed an underwritten public offering (“Follow-On Offering”) of 2,300,000 shares of its common stock, including 300,000 shares sold pursuant to the underwriters’ exercise of their option to purchase additional shares, at a public offering price of $81.00 per share. The Company received net proceeds of approximately $174.4 million, after deducting underwriters’ discounts and commissions of $11.2 million and offering costs of $0.7 million.

Accumulated Other Comprehensive Income (Loss)

The Company’s accumulated other comprehensive income (loss) includes $1.1 million loss on foreign currency translation adjustments and less than $0.1 million of unrealized loss on investments as of September 30, 2023, and $1.0 million loss on foreign currency translation adjustments and $1.8 million of unrealized gain on investments as of December 31, 2022. There were no reclassification adjustments from accumulated other comprehensive income (loss) during the nine months ended September 30, 2023 and 2022.

12. EQUITY INCENTIVE PLANS

In 2011, the Company adopted the 2011 Equity Incentive Plan (the “2011 Plan”) to permit the grant of share-based awards, such as stock grants and incentives and non-qualified stock options to employees and directors. The Board has the authority to determine to whom awards will be granted, the number of shares, the term and the exercise price.

In March 2020, the Company adopted the 2020 Incentive Award Plan (the “2020 Plan”), which became effective in connection with the Company’s initial public offering in May 2020 (“IPO”). As a result, the Company may not grant any additional awards under the 2011 Plan. The 2011 Plan will continue to govern outstanding equity awards granted thereunder. In addition, the number of shares of common stock reserved for issuance under the 2020 Plan will automatically increase on the first day of January for a period of up to ten years, commencing on January 1, 2021, in an amount equal to 3% of the total number of shares of the Company’s capital stock outstanding on the last day of the preceding year, or a lesser number of shares determined by the Company’s board of directors. As of September 30, 2023, there were 6,523,570 shares available for issuance under the 2020 Plan, including 1,620,650 additional shares reserved effective January 1, 2023.

2011 Equity Incentive Plan

Restricted Stock Units

In March 2019, the Company granted, under the 2011 Plan, restricted stock unit awards (“RSUs”) to certain employees that vest only upon the satisfaction of both a time-based service condition and a performance-based condition that was satisfied on the effective date of the IPO of the Company’s common stock. The RSUs were subject to four-year cliff vesting and vested in full in March 2023. The vesting was also subject to a market-based condition related to the value of the Company’s common stock as of the vesting date. As a result of exceeding the value of the Company's common stock as set forth in the grant agreement, the maximum amount of RSUs were earned and vested during the nine months ended September 30, 2023.

17

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

RSU activity under the 2011 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	2,712,674	$	0.17
Vested	(2,712,674)	(a)
Outstanding, September 30, 2023	—	$	—

_____________

(a) The vested RSUs will be distributed to the employees in installments. The first installment was distributed in the quarter ended March 31, 2023 with a weighted average fair value of $64.34. The second installment was distributed in the quarter ended June 30, 2023 with a weighted average fair value of $71.17. The third installment was distributed in the quarter ended September 30, 2023 with a weighted average fair value of $68.33. The remaining shares will be distributed within the quarter ended December 31, 2023.

The total fair value of RSUs vested under the 2011 Plan was $170.6 million for the nine months ended September 30, 2023. No RSUs had vested under the 2011 plan for the nine months ended September 30, 2022.

Stock Options

A summary of stock option activity under the 2011 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	1,456,328	$	1.93	6.20	$	89,749
Exercised	(334,351)	$	1.48		$	20,583
Cancelled	(3,324)	$	5.02
Outstanding, September 30, 2023	1,118,653	$	2.06	5.40	$	70,857
Vested and exercisable at September 30, 2023	1,091,976	$	1.95	5.40	$	69,283
Vested and expected to vest at September 30, 2023	1,118,415	$	2.06	5.40	$	70,843

The aggregate intrinsic values of options outstanding, vested and exercisable, and vested and expected to vest were calculated as the difference between the exercise price of the options and the market value of the Company’s common stock.

2020 Incentive Award Plan

Restricted Stock Units

RSUs are share awards that entitle the holder to receive freely tradable shares of the Company’s common stock upon vesting. The RSUs cannot be transferred and the awards are subject to forfeiture if the holder’s employment terminates prior to the release of the vesting restrictions. The RSUs generally vest either over a four-year period with straight-line vesting in equal amounts on a quarterly basis or a 25% one-year cliff vesting with remaining RSUs vest over a three-year period in equal amounts on a quarterly basis, provided the employee remains continuously employed with the Company. The fair value of the RSUs is equal to the closing price of the Company’s common stock on the grant date.

18

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

RSU activity under the 2020 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	999,215	$	79.16
Granted	778,398	58.56
Vested	(343,689)	74.28
Cancelled	(103,667)	73.67
Outstanding, September 30, 2023	1,330,257	$	68.79

The total fair value of RSUs vested under the 2020 Plan was $6.9 million and $4.5 million for the three months ended September 30, 2023 and 2022, respectively, and $21.0 million and $15.3 million for the nine months ended September 30, 2023 and 2022, respectively.

Stock options

During the nine months ended September 30, 2023, the Company granted non-qualified stock options to certain employees with vesting over a four-year period on a quarterly basis. The fair value of the stock options was calculated using the Black-Scholes option pricing model, which requires valuation assumptions of expected term, expected volatility, risk-free interest rate, and expected dividend yield. For the purposes of the Black-Scholes valuation model, the Company used the simplified method for determining the expected term of the granted options. The simplified method was used since the Company does not have adequate historical data to utilize in calculating the expected term of options. The fair value for options granted was calculated using the following weighted average assumptions:

	Nine Months Ended September 30, 2023
Expected term (in years)	4.56
Expected volatility	50.35%
Dividend yield	0.00%
Risk free interest rate	4.05%
Weighted-average fair value of options granted	$25.98 per share

A summary of stock option activities under the 2020 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	—	$	—	—	$	—
Granted	181,870	$	56.00
Exercised	(916)	$	56.00		$	9
Cancelled	(9,428)	$	56.00
Outstanding, September 30, 2023	171,526	$	56.00	6.40	$	1,612
Vested and exercisable at September 30, 2023	21,429	$	56.00	6.20	$	201
Vested and expected to vest at September 30, 2023	158,495	$	56.00	6.40	$	1,490

19

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

Employee Stock Purchase Plan

In May 2020, the Company adopted the 2020 Employee Stock Purchase Plan (“ESPP”), which was amended and restated in October 2020 by the Compensation Committee of the Company’s board of directors. Each offering to the employees to purchase stock under the ESPP will begin on each August 1 and February 1 and will end on the following January 31 and July 31, respectively. The first offering period began on August 1, 2020. On each purchase date, which falls on the last date of each offering period, ESPP participants will purchase shares of common stock at a price per share equal to 85% of the lesser of (1) the fair market value per share of the common stock on the offering date or (2) the fair market value of the common stock on the purchase date. The occurrence and duration of offering periods under the ESPP are subject to the determinations of the Compensation Committee, in its sole discretion. The number of shares available for issuance under the ESPP increases automatically on January 1 of each calendar year of the Company beginning in 2021 and ending in 2030, in an amount equal to the lesser of (i) 1% of the aggregate number of outstanding shares of the Company’s common stock on the final day of the immediately preceding calendar year and (ii) such smaller number of shares determined by the Company’s board of directors.

The fair value of the ESPP shares is estimated using the Black-Scholes option pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Expected term (in years)	0.5		0.5
Expected volatility	42.08% - 49.89%		56.09% - 72.78%
Dividend yield	0.00	%	0.00	%
Risk free interest rate	4.79% - 5.54%		0.48% - 2.96%

As of September 30, 2023, a total of (i) 423,109 shares of common stock, including 118,494 shares purchased in July 2023 and 86,051 shares purchased in January 2023, have been purchased under the ESPP, and (ii) 2,103,629 shares of common stock are reserved under the ESPP for future purchases, including 540,217 additional shares, which were automatically added to the reserve on January 1, 2023 pursuant to the terms of the ESPP.

Stock-based Compensation Expense

Total compensation cost for all share-based payment arrangements recognized, including $0.7 million and $0.8 million for the three months ended September 30, 2023 and 2022, respectively, and $2.9 million and $2.5 million for nine months ended September 30, 2023 and 2022, respectively, of stock-based compensation expense related to the ESPP, was as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of goods sold	$	393	$	386	$	1,232	$	1,126
Research and development	1,587		1,051		4,981		3,143
Selling, general and administrative	7,864		5,919		24,323		16,806
	$	9,844	$	7,356	$	30,536	$	21,075

Total stock-based compensation expense as of September 30, 2023 related to all non-vested awards to be recognized in future periods was $78.9 million and is expected to be recognized over the remaining weighted average period of 2.7 years.

20

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

13. INCOME TAXES

The following table reflects the Company’s provision for income taxes for the periods indicated (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Income (loss) before income taxes	$	5,590	$	(9,313)	$	7,420		$	(21,377)
Provision for income taxes	2,428		840		4,391			2,092
Net income (loss)	$	3,162	$	(10,153)	$	3,029		$	(23,469)
Provision for income taxes as a percentage of income (loss) before income taxes	43.4%		(9.0%)		59.2		%	(9.8		%)

The effective tax rate for all periods is driven by pre-tax income/(loss), business credits, equity compensation, state taxes, and the change in valuation allowance. The Company's income tax provision for interim reporting periods historically has been calculated by applying an estimate of the annual effective income tax rate for the full year to “ordinary” income (loss) for the interim reporting period. In addition, the tax effects of certain significant or unusual items are recognized discretely in the quarter in which they occur. For the nine months ended September 30, 2023, the Company calculated the income tax provision using this methodology. For the nine months ended September 30, 2022, a discrete effective income tax rate method was used as if the interim year to date period was an annual period.

For tax years beginning after December 31, 2021, certain research and development costs are required to be capitalized and amortized over a five year period under the Tax Cuts and Jobs Act, which was signed into law December 22, 2017. The Company has reviewed and incorporated this change, which will impact the expected U.S. federal and state tax expense and cash taxes to be paid for the tax year ending December 31, 2023.

Valuation Allowance

ASC 740, Income Taxes requires that the tax benefit of net operating losses, or NOLs, temporary differences and credit carryforwards be recorded as an asset to the extent that management assesses that realization is “more likely than not.” Realization of the future tax benefits is dependent on the Company’s ability to generate sufficient taxable income within the carryback or carryforward periods. As of December 31, 2022, the Company maintained a full valuation allowance of $30.3 million against the Company's net deferred tax assets. As of September 30, 2023, the Company believes that the deferred tax assets are currently not considered more likely than not to be realized and, accordingly, has maintained a full valuation allowance against its deferred tax assets. The Company will continue to assess its position on the realizability of its deferred tax assets, until such time as sufficient positive evidence may become available to allow the Company to reach a conclusion that a significant portion of the valuation allowance will no longer be needed. Any release of the valuation allowance may result in a material benefit recognized in the quarter of release.

Uncertain Tax Positions

The Company has recorded uncertain tax positions related to its federal and California research and development credit carryforwards. No interest or penalties have been recorded related to the uncertain tax positions due to credit carryforwards that are available to offset the uncertain tax positions. It is not expected that there will be a significant change in the uncertain tax position in the next twelve months. The Company is subject to U.S. federal and state income tax as well as to income tax in various foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities. As of the date of the financial statements, there are no income tax examinations in progress. The statute of limitations for tax years ended after December 31, 2019, December 31, 2018, and December 31, 2017 are open for federal and state, and foreign tax purposes, respectively.

21

INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

14. RETIREMENT PLAN

In December 2017, the Company adopted the Inari Medical, Inc. 401(k) Plan which allows eligible employees after one month of service to contribute pre-tax and Roth contributions to the plan, as allowed by law. The plan assets are held by Vanguard and the plan administrator is Ascensus Trust Company. Beginning in January 2021, the Company contributes a $1.00 match for every $1.00 contributed by a participating employee up to the greater of $3,000 or 4% of eligible compensation under the plan, with such Company's contributions becoming fully vested immediately. Matching contribution expense was $2.0 million and $1.7 million for the three months ended September 30, 2023 and 2022, respectively, and $6.9 million and $6.2 million for the nine months ended September 30, 2023 and 2022, respectively.

15. NET INCOME (LOSS) PER SHARE

Basic net income (loss) per share is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period, without consideration for potential dilutive common shares. Diluted net income (loss) per share is computed using the treasury stock method by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock and potentially dilutive securities outstanding for the period. For purposes of the diluted net income (loss) per share calculation, shares from common stock options, RSUs and ESPP are potentially dilutive securities. For the periods the Company is in a net loss position, basic net loss per share is the same as diluted net loss per share as the inclusion of all potential dilutive common shares would have been anti-dilutive.

The components of net income (loss) per share are as follows (in thousands, except per share amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Numerator:
Net income (loss)	$	3,162	$	(10,153)	$	3,029	$	(23,469)
Denominator:
Weighted average number of common shares outstanding - basic	57,384,884		53,491,625		56,478,317		52,552,662
Common stock equivalents from outstanding options	1,102,642		—		1,173,190		—
Common stock equivalents from unvested RSUs	94,531		—		832,873		—
Common stock equivalents from ESPP	6,395		—		11,541		—
Weighted average number of common shares outstanding - diluted	58,588,452		53,491,625		58,495,921		52,552,662
Net income (loss) per share:
Basic	$	0.06	$	(0.19)	$	0.05	$	(0.45)
Diluted	$	0.05	$	(0.19)	$	0.05	$	(0.45)

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INARI MEDICAL, INC.

Notes to Unaudited Condensed Consolidated Financial Statements

The following outstanding potentially dilutive common stock equivalents have been excluded from the calculation of diluted net income (loss) per share due to their anti-dilutive effect:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2023	2022	2023	2022
Common stock options	171,526	1,838,562	1,290,179	1,838,562
RSUs	555,468	3,694,930	1,332,500	3,694,930
	726,994	5,533,492	2,622,679	5,533,492

16. SUBSEQUENT EVENTS

On November 1, 2023, the Company announced that it entered into a share purchase agreement (the “Purchase Agreement”) to acquire LimFlow, S.A. (“LimFlow”), a medical device company focused on limb salvage for patients with chronic limb-threatening ischemia (the “LimFlow Acquisition”). Under the terms of the Purchase Agreement, the Company will pay $250 million in cash at closing, subject to adjustment based on the working capital, indebtedness, cash and transaction expenses of LimFlow. Additional contingent payments of up to $165 million will be payable depending on the achievement of certain commercial and reimbursement milestones. The Company expects to fund this acquisition via its existing cash and the availability under its credit facility. The LimFlow Acquisition is expected to close in the fourth quarter of the year ended December 31, 2023 and is subject to certain customary closing conditions set forth in the Purchase Agreement.

On November 1, 2023, the Company amended its credit facility to, among other things, increase the amount available for borrowing to up to a maximum principal amount of $75.0 million. Additionally, advances under this amended credit agreement will bear interest at a base rate per annum (“the Base Rate”) or the Bloomberg Short-Term Bank Yield Index (“the BSBY”) rate, plus an applicable margin (“the Margin”). The Margin ranges from 0.60% to 1.10% in the case of the Base Rate loans and 1.60% to 2.10% in the case of the BSBY rate loans depending on average daily availability, in each case with a floor of 0%. As a condition of entering into this amended credit agreement, the Company was obligated to pay a nonrefundable fee of $88,000. Lastly, the Company amended the LC Facility to increase the limit to up to $18.8 million.

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Item 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes appearing elsewhere in this Quarterly Report on Form 10-Q and our audited financial statements and related notes thereto for the year ended December 31, 2022, included in our Annual Report on Form 10-K for the year ended December 31, 2022. In addition to historical financial information, the following discussion contains forward-looking statements that are based upon current plans, expectations and beliefs that involve risks and uncertainties. Our actual results may differ materially from those anticipated in these forward-looking statements as a result of various factors, including those set forth under “Part I, Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022. Please also see the section titled “Cautionary Note Regarding Forward-Looking Statements.”

OVERVIEW

Patients first. No small plans. Take care of each other. These are the guiding principles that form the ethos of Inari Medical. We are committed to improving lives in extraordinary ways by creating innovative solutions for both unmet and underserved health needs. In addition to our purpose-built solutions, we leverage our capabilities in education, clinical research, and program development to improve patient outcomes. We are passionate about our mission to establish our treatments as the standard of care for venous thromboembolism and beyond. We are just getting started.

Our solutions (“products”) primarily consist of our ClotTriever and FlowTriever systems, which are minimally invasive, novel, catheter-based mechanical thrombectomy systems that are purpose-built for the specific characteristic of the venous system and the treatment of the two distinct manifestations of venous thromboembolism, or VTE - deep vein thrombosis, or DVT, and pulmonary embolism, or PE. Our ClotTriever system is FDA-cleared for the treatment of DVT, and our FlowTriever system is the first thrombectomy system FDA-cleared for the treatment of PE and is also FDA-cleared for clot in transit in the right atrium. Our solutions also consist of our InThrill system, which is FDA-cleared for the removal of thrombus from the peripheral vasculature and designed for smaller vessels, and our ProTrieve sheath, which is FDA-cleared for removal of thrombus from the peripheral vasculature through aspiration. During the nine months ended September 30, 2023, we released the RevCore thrombectomy catheter, which is an FDA-cleared mechanical thrombectomy device for venous stent thrombosis, Triever 16 Curve catheter, which is FDA-cleared for PE and venous thrombus removal, and ClotTriever Bold catheter, which is FDA-cleared for DVT and the removal of acute and chronic clots in the peripheral vasculature. In addition, we released ClotTriever XL, which is a purpose-built FDA-cleared catheter for efficient clot removal with minimal blood loss.

In March 2022, we completed an underwritten public offering, or the Follow-On Offering, of 2,300,000 shares of common stock, at a price of $81.00 per share. We received net proceeds of approximately $174.4 million, after deducting underwriters’ discounts and commissions and offering costs.

As of September 30, 2023, we had cash, cash equivalents, and short-term investments of $351.3 million, no long-term debt outstanding and an accumulated deficit of $43.8 million.

For the three months ended September 30, 2023, we generated $126.4 million in revenues with a gross margin of 88.5% and net income of $3.2 million, as compared to revenues of $96.2 million with a gross margin of 88.5% and net loss of $10.2 million for the three months ended September 30, 2022.

For the nine months ended September 30, 2023, we generated $361.5 million in revenues with a gross margin of 88.4% and net income of $3.0 million, as compared to revenues of $275.7 million with a gross margin of 88.6% and net loss of $23.5 million for the nine months ended September 30, 2022.

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Revenue

We derived substantially all our revenue from the sale of our ClotTriever and FlowTriever systems directly to hospitals primarily located in the United States. Our customers typically purchase our products through an initial stocking order, and then reorder replenishment inventory as procedures are performed. No single customer accounted for 10% or more of our revenue during the three and nine months ended September 30, 2023 and 2022. We expect our revenue to increase in absolute dollars as we expand our offerings globally, grow our sales organization and sales territories, add customers, expand the base of physicians that are trained to use our products, expand awareness of our products with new and existing customers and as physicians perform more procedures using our products.

Revenue from ClotTriever and other systems and FlowTriever system as a percentage of total revenue is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
ClotTriever and other systems	32	%	31	%	34	%	32	%
FlowTriever system	68	%	69	%	66	%	68	%

RESULTS OF OPERATIONS

Comparison of the three months ended September 30, 2023 and 2022

The following table sets forth the components of our unaudited condensed consolidated statements of operations in dollars and as percentage of revenue for the periods presented (dollars in thousands):

	Three Months Ended September 30,								Change $
	2023		%		2022		%
Revenue	$	126,366	100.0	%	$	96,204	100.0	%	$	30,162
Cost of goods sold	14,477		11.5	%	11,064		11.5	%	3,413
Gross profit	111,889		88.5	%	85,140		88.5	%	26,749
Operating expenses
Research and development	21,492		17.0	%	19,105		19.9	%	2,387
Selling, general and administrative	88,284		69.9	%	75,833		78.8	%	12,451
Total operating expenses	109,776		86.9	%	94,938		98.7	%	14,838
Income (loss) from operations	2,113		1.6	%	(9,798)		(10.2)	%	11,911
Other income (expense)
Interest income	4,202		3.3	%	618		0.6	%	3,584
Interest expense	(43)		—	%	(74)		(0.1)	%	31
Other expense	(682)		(0.5)	%	(59)		(0.1)	%	(623)
Total other income	3,477		2.8	%	485		0.4	%	2,992
Income (loss) before income taxes	5,590		4.4	%	(9,313)		(9.8)	%	14,903
Provision for income taxes	2,428		1.9	%	840		0.9	%	1,588
Net income (loss)	$	3,162	2.5	%	$	(10,153)	(10.7)	%	$	13,315

Revenue. Revenue increased $30.2 million, or 31.4%, to $126.4 million during the three months ended September 30, 2023, compared to $96.2 million during the three months ended September 30, 2022. The increase in revenue was primarily due to an increase in the number of products sold as we expanded our sales territories, opened new accounts and achieved deeper penetration of our products into existing accounts, and introduced new products.

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Cost of Goods Sold. Cost of goods sold increased $3.4 million, or 30.8%, to $14.5 million during the three months ended September 30, 2023, compared to $11.1 million during the three months ended September 30, 2022. This increase was primarily due to the increase in the number of products sold and additional manufacturing overhead costs to support anticipated future growth.

Gross Margin. Gross margin for the three months ended September 30, 2023 and 2022 remained flat at 88.5%.

Research and Development Expenses (“R&D”). R&D expenses increased $2.4 million, or 12.5%, to $21.5 million during the three months ended September 30, 2023, compared to $19.1 million during the three months ended September 30, 2022. The increase in R&D expenses was primarily due to increases of $1.5 million of material and supplies related expenses and $0.8 million of personnel-related expenses.

Selling, General and Administrative Expenses (“SG&A”). SG&A expenses increased $12.5 million, or 16.4%, to $88.3 million during the three months ended September 30, 2023, compared to $75.8 million during the three months ended September 30, 2022. The increase in SG&A expenses was primarily due to increases of $9.7 million in personnel-related expenses as a result of increased headcount and increased commissions due to higher revenue, $3.0 million of expenses related to professional fees, $0.6 million of material and supplies related expenses, and $0.3 million of facilities-related expenses, partially offset by decreases of $0.8 million in sales and marketing related expenses, and $0.4 million of expenses related to insurance costs.

Interest Income. Interest income increased $3.6 million to $4.2 million during the three months ended September 30, 2023, compared to $0.6 million during the three months ended September 30, 2022. The increase in interest income was primarily due to an increase in interest rates as well as an increase in the average balance of our short-term investments during the three months ended September 30, 2023 compared to the three months ended September 30, 2022.

Interest Expense. Interest expense decreased to $43,000 during the three months ended September 30, 2023, compared to $74,000 during the three months ended September 30, 2022.

Other Expense. Other expense was $0.7 million and $0.1 million for the three months ended September 30, 2023 and 2022, respectively. The increase in other expense was primarily due to an impairment loss related to our strategic investment of $0.6 million, and foreign currency transaction losses.

Income Taxes. Income taxes increased $1.6 million to $2.4 million during the three months ended September 30, 2023, compared to $0.8 million during the three months ended September 30, 2022. The increase in income taxes primarily relates to an increase in the current year U.S. federal and state income taxes due to an increase in the U.S. pre-tax book income for the three months ended September 30, 2023.

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Comparison of the nine months ended September 30, 2023 and 2022

The following table sets forth the components of our unaudited condensed consolidated statements of operations in dollars and as percentage of revenue for the periods presented (dollars in thousands):

	Nine Months Ended September 30,								Change $
	2023		%		2022		%
Revenue	$	361,538	100.0	%	$	275,700	100.0	%	$	85,838
Cost of goods sold	42,062		11.6	%	31,378		11.4	%	10,684
Gross profit	319,476		88.4	%	244,322		88.6	%	75,154
Operating expenses
Research and development	64,641		17.9	%	53,809		19.5	%	10,832
Selling, general and administrative	259,570		71.8	%	212,721		77.2	%	46,849
Total operating expenses	324,211		89.7	%	266,530		96.7	%	57,681
Loss from operations	(4,735)		(1.3	%)	(22,208)		(8.1	%)	17,473
Other income (expense)
Interest income	12,899		3.6	%	882		0.3	%	12,017
Interest expense	(127)		—	%	(220)		(0.1	%)	93
Other (expense) income	(617)		(0.2	%)	169		0.1	%	(786)
Total other income	12,155		3.4	%	831		0.3	%	11,324
Income (loss) before income taxes	7,420		2.1	%	(21,377)		(7.8	%)	28,797
Provision for income taxes	4,391		1.2	%	2,092		0.8	%	2,299
Net income (loss)	$	3,029	0.9	%	$	(23,469)	(8.6	%)	$	26,498

Revenue. Revenue increased $85.8 million, or 31.1%, to $361.5 million during the nine months ended September 30, 2023, compared to $275.7 million during the nine months ended September 30, 2022. The increase in revenue was due primarily to an increase in the number of products sold as we expanded our sales territories, opened new accounts and achieved deeper penetration of our products into existing accounts, and introduced new products.

Cost of Goods Sold. Cost of goods sold increased $10.7 million, or 34.0%, to $42.1 million during the nine months ended September 30, 2023, compared to $31.4 million during the nine months ended September 30, 2022. This increase was primarily due to the increase in the number of products sold and additional manufacturing overhead costs to support anticipated future growth.

Gross Margin. Gross margin for the nine months ended September 30, 2023 decreased to 88.4%, compared to 88.6% for the nine months ended September 30, 2022, primarily due to the increase in costs associated with the addition of new components offered under our FlowTriever system price, partially offset by manufacturing efficiencies.

Research and Development Expenses. R&D expenses increased $10.8 million, or 20.1%, to $64.6 million during the nine months ended September 30, 2023, compared to $53.8 million during the nine months ended September 30, 2022. The increase in R&D expenses was primarily due to increases of $6.4 million of personnel-related expenses, $4.0 million of material and supplies related expenses, $0.9 million of clinical and regulatory expenses, and $0.3 million in software costs and depreciation expenses in support of our growth drivers to develop new products and build the clinical evidence base, partially offset by a decrease of $1.1 million of expenses related to professional fees.

Selling, General and Administrative Expenses. SG&A expenses increased $46.8 million, or 22.0%, to $259.6 million during the nine months ended September 30, 2023, compared to $212.7 million during the nine months ended September 30, 2022. The increase in SG&A expenses was primarily due to increases of $42.2 million in personnel-related expenses as a result of increased headcount and increased commissions due to higher revenue, $2.8 million of expenses related to professional fees, $1.9 million in travel and related expenses, $1.6 million of materials and supplies, $0.7 million related to facilities-related expenses, and $0.6 million of

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software costs and depreciation expenses, partially offset by decreases of $2.1 million in sales and marketing related expenses and $1.0 million of insurance related expenses.

Interest Income. Interest income increased $12.0 million to $12.9 million during the nine months ended September 30, 2023, compared to $0.9 million during the nine months ended September 30, 2022. The increase in interest income was primarily due to an increase in interest rates as well as an increase in the average balance of our short-term investments during the nine months ended September 30, 2023 compared to the nine months ended September 30, 2022.

Interest Expense. Interest expense decreased to $127,000 during the nine months ended September 30, 2023, compared to $220,000 during the nine months ended September 30, 2022.

Other (Expense) Income. Other expense was $0.6 million and other income was $0.2 million for the nine months ended September 30, 2023 and September 30, 2022, respectively. The change in other (expense) income was primarily due to an impairment loss related to our strategic investment of $0.6 million, and foreign currency transaction losses.

Income Taxes. Income taxes increased $2.3 million to $4.4 million for the nine months ended September 30, 2023, compared to $2.1 million during the nine months ended September 30, 2022. The increase in the income taxes primarily relates to an increase in the current year U.S. federal and state income taxes due to an increase in the U.S. pre-tax book income for the nine months ended September 30, 2023.

LIQUIDITY AND CAPITAL RESOURCES

To date, our primary sources of capital have been the net proceeds we received through private placements of preferred stock, debt financing agreements, the sale of common stock in our IPO completed on May 27, 2020 and the Follow-On Offering completed in March 2022, and revenue from the sale of our products. As of September 30, 2023, we had cash and cash equivalents of $89.2 million and short-term investments in debt securities of $262.1 million. We maintain cash and cash equivalents with financial institutions in excess of insured limits.

On November 1, 2023, we announced that we entered into a Purchase Agreement to acquire LimFlow. Under the terms of the Purchase Agreement, we will pay $250 million in cash at closing, subject to adjustment based on the working capital, indebtedness, cash and transaction expenses of LimFlow. Additional contingent payments of up to $165 million will be payable depending on the achievement of certain commercial and reimbursement milestones. We expect to fund this acquisition via our existing cash and the availability under our credit facility. The LimFlow Acquisition is expected to close in the fourth quarter of the year ended December 31, 2023 and is subject to certain customary closing conditions set forth in the Purchase Agreement.

In December 2022, we amended the revolving Credit Agreement governing our senior secured revolving credit facility with Bank of America (“the Amended Credit Agreement”) to, among other things, increase the amount available for borrowing to up to a maximum of $40.0 million and increase the optional accordion to $120.0 million. As of September 30, 2023, we had no principal outstanding under the Amended Credit Agreement and the amount available to borrow was approximately $37.6 million. The Amended Credit Agreement also includes a LC Facility of up to $5.0 million. In February 2023, we amended the LC Facility to increase the limit to up to $10.0 million. The aggregate stated amount outstanding of letters of credit reduces the total borrowing base available under the Amended Credit Agreement and is subject to certain fees. As of September 30, 2023, we had four letters of credit in the aggregated amount of $2.4 million outstanding under the LC Facility. For additional information about the Amended Credit Agreement, see note 10. Credit Facility to our condensed consolidated financial statements, which is included in “Part I, Item 1. Condensed Consolidated Financial Statements (Unaudited)” of this report. On November 1, 2023, we amended our credit facility to, among other things, increase the amount available for borrowing to up to a maximum principal amount of $75.0 million. We also amended the LC Facility to increase the limit to up to $18.8 million.

In October 2023, we signed a ten-year lease for real estate with total undiscounted contractual payments for the three-year term of the lease of $7.2 million, which are expected to commence in October 2024.

Our other short-term and long-term material cash requirements, from known contractual obligations as of September 30, 2023, include operating lease liabilities and uncertain tax positions, as discussed in note 7. Commitments and Contingencies and note 13. Income Taxes to our condensed consolidated financial

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statements section of this report, which is included in “Part I, Item 1. Condensed Consolidated Financial Statements (Unaudited)” of this report.

Based on our current planned operations, we anticipate that our cash and cash equivalents, short-term investments and available borrowings under our Amended Credit Agreement will be sufficient to fund these cash requirements and our operating expenses for at least the next 12 months. Our primary short-term needs for capital for our current planned operations, which are subject to change, include:

•support of commercialization efforts to expand our sales force along with expanding into new markets, and developing products to enhance performance and address unmet market needs;

•the continued advancement of research and development including clinical study activities; and

•potential expansion needs of our facilities.

If our available cash balances and anticipated cash flow from operations are insufficient to satisfy our liquidity requirements, we may seek to sell additional common or preferred equity or convertible debt securities, enter into an additional credit facility or another form of third-party funding or seek other debt financing. The sale of equity and convertible debt securities may result in dilution to our stockholders and, in the case of preferred equity securities or convertible debt, those securities could provide for rights, preferences or privileges senior to those of our common stock. The terms of debt securities issued or borrowings pursuant to a credit agreement could impose significant restrictions on our operations. If we raise funds through collaborations and licensing arrangements, we might be required to relinquish significant rights to our platform technologies or products or grant licenses on terms that are not favorable to us. Additional capital may not be available on reasonable terms, or at all. In addition, market conditions impacting financial institutions could impact our ability to access some or all of our cash and cash equivalents, and we may be unable to obtain alternative funding when and as needed on acceptable terms, if at all.

CASH FLOWS

The following table summarizes our cash flows for each of the periods indicated (in thousands):

	Nine Months Ended September 30,
	2023		2022
Net cash provided by (used in):
Operating activities	$	23,686	$	(25,227)
Investing activities	1,698		(161,969)
Financing activities	3,581		178,827
Effect of foreign exchange rate changes on cash and cash equivalents	(5)		(855)
Net increase (decrease) in cash and cash equivalents	$	28,960	$	(9,224)

Net cash used in operating activities

Net cash provided by operating activities for the nine months ended September 30, 2023 was $23.7 million, consisting primarily of net income of $3.0 million and non-cash charges of $27.6 million, offset by a net change in our net operating assets and liabilities of $6.9 million. The non-cash charges primarily consisted of stock-based compensation expense of $30.5 million, depreciation of $4.2 million, and amortization of the right-of-use assets of $3.1 million, partially offset by amortization of premium and discount on marketable securities of $11.4 million. The change in our net operating assets and liabilities was primarily due to increases in accounts receivable of $11.6 million, inventories of $7.8 million, payroll-related accruals, accrued expenses and other liabilities of $7.2 million, and accounts payable of $2.4 million, in addition to a decrease in prepaid expenses, deposits and other assets of $4.3 million and operating lease liabilities of $1.0 million.

Net cash used in operating activities for the nine months ended September 30, 2022 was $25.2 million, consisting primarily of net loss of $23.5 million and a net change in our net operating assets and liabilities of $28.5 million, offset by non-cash charges of $26.8 million. The change in our net operating assets and liabilities was primarily due to increases in accounts receivable of $12.2 million, inventories of $8.7 million, and prepaid and other assets of $1.5 million, in addition to a decrease in lease prepayments for lessor’s owned leasehold

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improvements of $4.5 million. The non-cash charges primarily consisted of $21.1 million in stock-based compensation expense, $3.4 million in depreciation, and $1.8 million in amortization of the right-of-use assets.

Net cash used in investing activities

Net cash provided by investing activities for the nine months ended September 30, 2023 was $1.7 million, consisting of purchases of $394.5 million of short-term investments, $3.8 million of property and equipment, and $0.6 million of other investments, offset by maturities of short-term investments of $400.6 million.

Net cash used in investing activities for the nine months ended September 30, 2022 was $162.0 million, consisting of purchases of $332.1 million of short-term investments, $5.7 million of other investments, and $8.2 million of property and equipment, offset by maturities of short-term investments of $184.0 million.

Net cash provided by financing activities

Net cash provided by financing activities in the nine months ended September 30, 2023 was $3.6 million, consisting of $9.9 million of proceeds from the issuance of common stock under our employee stock purchase plan and $0.5 million of proceeds from the exercise of stock options, offset by $6.9 million of tax payments related to vested RSUs.

Net cash provided by financing activities in the nine months ended September 30, 2022 was $178.8 million, consisting of $174.4 million of net proceeds from the issuance of common stock in the Follow-On Offering, net of issuance costs of $11.9 million, $8.4 million of proceeds from the issuance of common stock under our employee stock purchase plan and $0.6 million of proceeds from the exercise of stock options, offset by $4.6 million of tax payments related to vested RSUs.

CRITICAL ACCOUNTING POLICIES ESTIMATES

Other than the accounting policy changes discussed in note 2. Summary of Significant Accounting Policies to our condensed consolidated financial statements, which is included in “Part I, Item 1. Condensed Consolidated Financial Statements (Unaudited)”, there have been no significant changes in our critical accounting policies during the nine months ended September 30, 2023, as compared to the critical accounting policies disclosed in Management's Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 27, 2023.

Item 3. Quantitative and Qualitative Disclosures about Market Risk.

There have been no material changes to our quantitative and qualitative disclosures about market risk as compared to the quantitative and qualitative disclosures about market risk described in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on February 27, 2023 under “Part II, Item 7. Quantitative and Qualitative Disclosures about Market Risk.”

Item 4. Controls and Procedures.

Evaluation of disclosure controls and procedures

Our management, with the participation of our Principal Executive Officer and our Principal Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act), as of September 30, 2023. Based on such evaluation, our Principal Executive Officer and Principal Financial Officer concluded that, as of September 30, 2023, these disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed by us in the reports that we file or submit under the Exchange Act, is recorded, processed, summarized and reported, within the time periods specified in the SEC rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management as appropriate to allow timely decisions regarding required disclosures. In designing and evaluating our disclosure controls and procedures, management recognizes that any control and procedure, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that

30

management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

Changes in internal control over financial reporting

During the quarter ended September 30, 2023, there were no changes in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act), that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

31

PART II — OTHER INFORMATION

Item 1. LEGAL PROCEEDINGS

We are not subject to any material legal proceedings.

Item 1A. RISK FACTORS

For a discussion of our potential risks and uncertainties, see the information in Part I, “Part I, Item 1A. Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022. As of the date of this Report, there have been no material changes to the risk factors disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022.

Item 2. UNREGISTERED SALES OF EQUITY SECURITIES, USE OF PROCEEDS AND ISSUER PURCHASES OF EQUITY SECURITIES

None.

Item 3. DEFAULTS UPON SENIOR SECURITIES

None.

Item 4. MINE SAFETY DISCLOSURES

Not applicable.

Item 5. OTHER INFORMATION

Insider Trading Arrangements

As previously disclosed, in connection with grants made under the 2011 Equity Incentive Plan for RSUs, certain RSUs were vested in March 2023 and will be distributed in installments to the employees. In November 2022, to ensure that we would receive the funds required to pay all tax obligations due in connection with the distribution and settlement of these previously-vested RSUs on a timely basis, Mr. Bill Hoffman, a member of our Board of Directors, Mr. Andrew Hykes, Chief Executive Officer and President, and Dr. Thomas Tu, Chief Medical Officer, each entered into an agreement to permit us to sell shares of our common stock sufficient to satisfy such taxes. We previously determined that we would not carry out the instruction with respect to Mr. Hoffman after he informed us that he will wire sufficient funds to us in advance of the remaining November 15, 2023 distribution so that we can remit such taxes on his behalf to the relevant taxing authorities. As such, we do not intend to sell shares to cover Mr. Hoffman’s tax obligations. With respect to Mr. Hykes and Dr. Tu, we intend to sell the required shares, approximately 37,000 and 25,000 respectively, to cover the applicable tax obligations for the November 2023 distribution in accordance with the terms of their previous instructions.

No officer (as defined in Rule 16a-1(f) under the Exchange Act) or director has entered into, modified or terminated a trading plan pursuant to Rule 10b5-1(c) under the Exchange Act, or any other non-rule 10b5-1 trading plan during the three months ended September 30, 2023.

32

Item 6. EXHIBITS

Exhibit Number	Description		Incorporated by reference
		Form	File Number	Exhibit	Filing Date
3.1	Amended and Restated Certificate of Incorporation	8-K	001-39293	3.1	5/28/2020
3.2	Amended and Restated Bylaws	8-K	001-39293	3.2	5/28/2020
10.1#	Amended and Restated Employment Agreement, effective September 18, 2023, by and between Inari Medical, Inc. and Andrew Hykes	8-K	001-39293	10.1	9/22/2023
10.2#	Amended and Restated Employment Agreement, effective September 18, 2023, by and between Inari Medical, Inc. and Mitchell Hill	8-K	001-39293	10.2	9/22/2023
10.3#	Amended and Restated Employment Agreement, effective September 18, 2023, by and between Inari Medical, Inc. and Thomas T. Tu, MD	8-K	001-39293	10.3	9/22/2023
31.1	Certification of Principal Executive Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Principal Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1†	Certifications of Principal Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2†	Certifications of Principal Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its EBRL 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 with Interactive Data File (formatted as Inline XBRL with applicable taxonomy extension information contained in Exhibits 101).

_____________________________

# Indicates management contract or compensatory plan.

† The certifications attached as Exhibit 32.1 and 32.2 that accompany this Quarterly Report on Form 10-Q are deemed furnished and not filed with the U.S. Securities and Exchange Commission and are not to be incorporated by reference into any filing of Inari Medical, Inc. under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date of this Quarterly Report on Form 10-Q, irrespective of any general incorporation language contained in such filing.

33

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.

	Inari Medical, Inc.
Date: November 1, 2023	By:	/s/ Andrew Hykes
		Andrew Hykes
		Chief Executive Officer and President (Principal Executive Officer)
Date: November 1, 2023	By:	/s/ Mitchell Hill
		Mitchell Hill
		Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

34

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Andrew Hykes, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Inari Medical, Inc. (the "registrant");

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

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

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in the 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: November 1, 2023	By:	/s/ Andrew Hykes
		Andrew Hykes
		Chief Executive Officer and President (Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

RULES 13a-14(a) AND 15d-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934,

AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Mitchell Hill, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Inari Medical, Inc. (the "registrant");

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

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

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in the 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: November 1, 2023	By:	/s/ Mitchell Hill
		Mitchell Hill
		Chief Financial Officer (Principal Financial Officer and Principal Accounting 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 Inari Medical, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, 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 result of operations of the Company.

Date: November 1, 2023	By:	/s/ Andrew Hykes
		Andrew Hykes
		Chief Executive Officer and President (Principal Executive Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

EX-32.2

Exhibit 32.2

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 Inari Medical, Inc. (the “Company”) on Form 10-Q for the period ended September 30, 2023 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, 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 result of operations of the Company.

Date: November 1, 2023	By:	/s/ Mitchell Hill
		Mitchell Hill
		Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)

The foregoing certification is being furnished solely to accompany the Report pursuant to 18 U.S.C. § 1350, and is not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and is not to be incorporated by reference into any filing of the Company, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

XML

Cover - shares	9 Months Ended
	Sep. 30, 2023	Oct. 27, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	001-39293
Entity Registrant Name	Inari Medical, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	45-2902923
Entity Address, Address Line One	6001 Oak Canyon
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Irvine
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92618
City Area Code	877
Local Phone Number	923-4747
Title of 12(b) Security	Common stock, $0.001 par value per share
Trading Symbol	NARI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		57,590,463
Entity Central Index Key	0001531048
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Amendment Flag	false

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 89,182	$ 60,222
Short-term investments in debt securities	262,113	266,179
Accounts receivable, net	69,595	58,611
Inventories, net	40,227	32,581
Prepaid expenses and other current assets	7,944	5,312
Total current assets	469,061	422,905
Property and equipment, net	21,243	21,655
Operating lease right-of-use assets	49,065	50,703
Deposits and other assets	9,466	8,889
Total assets	548,835	504,152
Current liabilities
Accounts payable	10,091	7,659
Payroll-related accruals	41,305	38,955
Accrued expenses and other current liabilities	13,040	8,249
Operating lease liabilities, current portion	1,630	1,311
Total current liabilities	66,066	56,174
Operating lease liabilities, noncurrent portion	30,627	30,976
Total liabilities	96,693	87,150
Commitments and contingencies (Note 7)
Stockholders' equity
Preferred stock, $0.001 par value, 10,000,000 shares authorized, no shares issued and outstanding as of September 30, 2023 and December 31, 2022	0	0
Common stock, $0.001 par value, 300,000,000 shares authorized as of September 30, 2023 and December 31, 2022; 57,506,462 and 54,021,656 shares issued and outstanding as of September 30, 2023 and December 31, 2022, respectively	58	54
Additional paid in capital	497,063	462,949
Accumulated other comprehensive (loss) income	(1,158)	849
Accumulated deficit	(43,821)	(46,850)
Total stockholders' equity	452,142	417,002
Total liabilities and stockholders' equity	$ 548,835	$ 504,152

XML

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	300,000,000	300,000,000
Common stock, issued (in shares)	57,506,462	54,021,656
Common stock, outstanding (in shares)	57,506,462	54,021,656

XML

Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Revenue	$ 126,366	$ 96,204	$ 361,538	$ 275,700
Cost of goods sold	14,477	11,064	42,062	31,378
Gross profit	111,889	85,140	319,476	244,322
Operating expenses
Research and development	21,492	19,105	64,641	53,809
Selling, general and administrative	88,284	75,833	259,570	212,721
Total operating expenses	109,776	94,938	324,211	266,530
Income (loss) from operations	2,113	(9,798)	(4,735)	(22,208)
Other income (expense)
Interest income	4,202	618	12,899	882
Interest expense	(43)	(74)	(127)	(220)
Other (expense) income	(682)	(59)	(617)	169
Total other income	3,477	485	12,155	831
Income (loss) before income taxes	5,590	(9,313)	7,420	(21,377)
Provision for income taxes	2,428	840	4,391	2,092
Net income (loss)	3,162	(10,153)	3,029	(23,469)
Other comprehensive income (loss)
Foreign currency translation adjustments	(68)	(406)	(138)	(814)
Unrealized gain (loss) on available-for-sale debt securities	91	644	(1,869)	271
Total other comprehensive income (loss)	23	238	(2,007)	(543)
Comprehensive income (loss)	$ 3,185	$ (9,915)	$ 1,022	$ (24,012)
Net income (loss) per share
Basic (in dollars per share)	$ 0.06	$ (0.19)	$ 0.05	$ (0.45)
Diluted (in dollars per share)	$ 0.05	$ (0.19)	$ 0.05	$ (0.45)
Weighted average common shares used to compute net income (loss) per share
Basic (in shares)	57,384,884	53,491,625	56,478,317	52,552,662
Diluted (in shares)	58,588,452	53,491,625	58,495,921	52,552,662

XML

Condensed Consolidated Statements Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Balance at beginning of period (in shares) at Dec. 31, 2021		50,313,452
Balance at beginning of period at Dec. 31, 2021	$ 239,209	$ 50	$ 257,144	$ (402)	$ (17,583)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		322,882
Options exercised for common stock	345	$ 1	344
Shares issued under Employee Stock Purchase Plan (in shares)		54,808
Shares issued under Employee Stock Purchase Plan	3,427		3,427
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		31,763
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(1,624)		(1,624)
Issuance of common stock in public offering, net of issuance costs (in shares)		2,300,000
Issuance of common stock in public offering, net of issuance costs	174,394	$ 2	174,392
Share-based compensation expense	6,555		6,555
Other comprehensive income (loss)	(365)			(365)
Net income (loss)	(3,129)				(3,129)
Balance at end of period (in shares) at Mar. 31, 2022		53,022,905
Balance at end of period at Mar. 31, 2022	418,812	$ 53	440,238	(767)	(20,712)
Balance at beginning of period (in shares) at Dec. 31, 2021		50,313,452
Balance at beginning of period at Dec. 31, 2021	239,209	$ 50	257,144	(402)	(17,583)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(23,469)
Balance at end of period (in shares) at Sep. 30, 2022		53,595,277
Balance at end of period at Sep. 30, 2022	415,099	$ 53	457,043	(945)	(41,052)
Balance at beginning of period (in shares) at Mar. 31, 2022		53,022,905
Balance at beginning of period at Mar. 31, 2022	418,812	$ 53	440,238	(767)	(20,712)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		228,313
Options exercised for common stock	156		156
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		54,607
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(1,751)		(1,751)
Share-based compensation expense	7,164		7,164
Other comprehensive income (loss)	(416)			(416)
Net income (loss)	(10,187)				(10,187)
Balance at end of period (in shares) at Jun. 30, 2022		53,305,825
Balance at end of period at Jun. 30, 2022	413,778	$ 53	445,807	(1,183)	(30,899)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		167,102
Options exercised for common stock	109		109
Shares issued under Employee Stock Purchase Plan (in shares)		78,707
Shares issued under Employee Stock Purchase Plan	4,995		4,995
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		43,643
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(1,224)		(1,224)
Share-based compensation expense	7,356		7,356
Other comprehensive income (loss)	238			238
Net income (loss)	(10,153)				(10,153)
Balance at end of period (in shares) at Sep. 30, 2022		53,595,277
Balance at end of period at Sep. 30, 2022	$ 415,099	$ 53	457,043	(945)	(41,052)
Balance at beginning of period (in shares) at Dec. 31, 2022	54,021,656	54,021,656
Balance at beginning of period at Dec. 31, 2022	$ 417,002	$ 54	462,949	849	(46,850)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		209,966
Options exercised for common stock	226		226
Shares issued under Employee Stock Purchase Plan (in shares)		86,051
Shares issued under Employee Stock Purchase Plan	4,172		4,172
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		2,766,043
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(1,929)	$ 3	(1,932)
Share-based compensation expense	10,339		10,339
Other comprehensive income (loss)	(856)			(856)
Net income (loss)	(2,218)				(2,218)
Balance at end of period (in shares) at Mar. 31, 2023		57,083,716
Balance at end of period at Mar. 31, 2023	$ 426,736	$ 57	475,754	(7)	(49,068)
Balance at beginning of period (in shares) at Dec. 31, 2022	54,021,656	54,021,656
Balance at beginning of period at Dec. 31, 2022	$ 417,002	$ 54	462,949	849	(46,850)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 3,029
Balance at end of period (in shares) at Sep. 30, 2023	57,506,462	57,506,462
Balance at end of period at Sep. 30, 2023	$ 452,142	$ 58	497,063	(1,158)	(43,821)
Balance at beginning of period (in shares) at Mar. 31, 2023		57,083,716
Balance at beginning of period at Mar. 31, 2023	426,736	$ 57	475,754	(7)	(49,068)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		81,712
Options exercised for common stock	214		214
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		101,027
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(2,569)		(2,569)
Share-based compensation expense	10,353		10,353
Other comprehensive income (loss)	(1,174)			(1,174)
Net income (loss)	2,085				2,085
Balance at end of period (in shares) at Jun. 30, 2023		57,266,455
Balance at end of period at Jun. 30, 2023	435,645	$ 57	483,752	(1,181)	(46,983)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Options exercised for common stock (in shares)		43,547
Options exercised for common stock	107		107
Shares issued under Employee Stock Purchase Plan (in shares)		118,494
Shares issued under Employee Stock Purchase Plan	5,749	$ 1	5,748
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes (in shares)		77,966
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(2,388)		(2,388)
Share-based compensation expense	9,844		9,844
Other comprehensive income (loss)	23			23
Net income (loss)	$ 3,162				3,162
Balance at end of period (in shares) at Sep. 30, 2023	57,506,462	57,506,462
Balance at end of period at Sep. 30, 2023	$ 452,142	$ 58	$ 497,063	$ (1,158)	$ (43,821)

XML

Condensed Consolidated Statements Stockholders' Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2022	Sep. 30, 2022
Statement of Stockholders' Equity [Abstract]
Stock issuance cost	$ 11.9	$ 11.9

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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities
Net income (loss)	$ 3,029	$ (23,469)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	4,186	3,430
Amortization of deferred financing costs	30	108
Amortization of right-of-use assets	3,099	1,799
Share-based compensation expense	30,536	21,075
Impairment loss on strategic investment	565	0
Allowance for credit losses, net	526	341
Loss on disposal of fixed assets	26	23
Amortization of premium and discount on marketable securities	(11,407)	0
Changes in:
Accounts receivable	(11,566)	(12,220)
Inventories	(7,797)	(8,706)
Prepaid expenses, deposits and other assets	4,294	(1,537)
Accounts payable	2,436	(441)
Payroll-related accruals, accrued expenses and other liabilities	7,218	(562)
Operating lease liabilities	(1,031)	(565)
Lease prepayments for lessor's owned leasehold improvements	(458)	(4,503)
Net cash provided by (used in) operating activities	23,686	(25,227)
Cash flows from investing activities
Purchases of property and equipment	(3,801)	(8,173)
Purchases of marketable securities	(394,496)	(332,103)
Maturities of marketable securities	400,560	184,000
Purchases of other investments	(565)	(5,693)
Net cash provided by (used in) investing activities	1,698	(161,969)
Cash flows from financing activities
Proceeds from issuance of common stock in public offering, net of issuance costs of $11.9 million	0	174,394
Proceeds from issuance of common stock under employee stock purchase plan	9,920	8,422
Proceeds from exercise of stock options	547	610
Payment of taxes related to vested restricted stock units	(6,886)	(4,599)
Net cash provided by financing activities	3,581	178,827
Effect of foreign exchange rate changes on cash and cash equivalents	(5)	(855)
Net increase (decrease) in cash and cash equivalents	28,960	(9,224)
Cash and cash equivalents beginning of period	60,222	92,752
Cash and cash equivalents end of period	$ 89,182	$ 83,528

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Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2022	Sep. 30, 2022
Statement of Cash Flows [Abstract]
Stock issuance cost	$ 11.9	$ 11.9

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Organization

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

ORGANIZATION

Description of Business

Inari Medical, Inc. (the “Company”) was incorporated in Delaware in July 2011 and is headquartered in Irvine, California. The Company purpose builds minimally invasive, novel, catheter-based mechanical thrombectomy systems for the unique characteristics of specific disease states.

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Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and include the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The interim condensed consolidated balance sheet as of September 30, 2023 and the condensed consolidated statements of operations and comprehensive income (loss), stockholders’ equity, and cash flows for the three and nine months ended September 30, 2023 and 2022 are unaudited. The consolidated balance sheet as of December 31, 2022 included herein was derived from the audited consolidated financial statements as of that date. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the annual consolidated financial statements and reflect, in the opinion of management, all adjustments of a normal and recurring nature that are necessary for the fair presentation of the Company’s condensed consolidated financial position as of September 30, 2023 and its consolidated results of operations and cash flows for the three and nine months ended September 30, 2023 and 2022. The financial data and the other financial information disclosed in the notes to the condensed consolidated financial statements related to the three and nine months ended September 30, 2023 and 2022 are also unaudited. The condensed consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future annual or interim period. These interim condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

Management Estimates

The preparation of financial statements in conformity with U.S. 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 revenue and expenses during the reporting period. Significant estimates and assumptions made in the accompanying condensed consolidated financial statements may include, but are not limited to, collectability of receivables, recoverability of long-lived assets, valuation of inventory, operating lease right-of-use (“ROU”) assets and liabilities, other investments, fair value of stock options, recoverability of net deferred tax assets and related valuation allowance, and certain accruals. Estimates are based on historical experience and on various assumptions that the Company believes are reasonable under current circumstances. Actual results could differ materially from those estimates. Management periodically evaluates such estimates and assumptions, and they are adjusted prospectively based upon such periodic evaluation.

Revenue Recognition

The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers. Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to

the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation.

The Company sells its products primarily to hospitals in the United States through its direct sales force. The Company recognizes revenue for arrangements where the Company has satisfied its performance obligation of shipping or delivering the product. For sales where the Company’s sales representatives hand-deliver products directly to the hospitals, control of the products transfers to the customers upon such hand- delivery. For sales where products are shipped, control of the products transfers either upon shipment or delivery of the products to the customer, depending on the shipping terms and conditions. Revenue from product sales is comprised of product revenue, net of product returns, discounts, administrative fees and sales rebates.

Performance Obligation—The Company has revenue arrangements that consist of a single performance obligation, the shipping or delivery of the Company’s products. The satisfaction of this performance obligation occurs with the transfer of control of the Company’s product to its customers, either upon shipment or delivery of the product.

Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. The amount of revenue recognized is based on the transaction price, which represents the invoiced amount, net of discounts, administrative fees and sales rebates, where applicable. The Company provides a standard 30-day unconditional right of return period. The Company establishes estimated provisions for returns at the time of sale based on historical experience. Historically, the actual product returns have been immaterial to the Company’s consolidated financial statements.

As of September 30, 2023 and December 31, 2022, the Company recorded $1,324,000 and $1,218,000, respectively, of unbilled receivables, which are included in accounts receivable, net, in the accompanying condensed consolidated balance sheets.

The Company disaggregates revenue by product. Revenue for ClotTriever and other systems and FlowTriever system as a percentage of total revenue is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
ClotTriever and other systems	32	%	31	%	34	%	32	%
FlowTriever system	68	%	69	%	66	%	68	%

Revenue from the Company's products by geographic area, based on the location where title transfers, is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
United States	$	119,825	$	93,597	$	345,473	$	269,584
International	6,541		2,607		16,065		6,116
Total revenue	$	126,366	$	96,204	$	361,538	$	275,700

The Company offers payment terms to its customers of less than three months and these terms do not include a significant financing component. The Company excludes taxes assessed by governmental authorities on revenue-producing transactions from the measurement of the transaction price.

The Company offers its standard warranty to all customers. The Company does not sell any warranties on a standalone basis. The Company’s warranty provides that its products are free of material defects and conform to specifications, and includes an offer to repair, replace or refund the purchase price of defective products. This assurance does not constitute a service and is not considered a separate performance obligation. The Company estimates warranty liabilities at the time of revenue recognition and records it as a charge to cost of goods sold. The warranty expense recognized was $57,000 and $165,000 during the three months ended

September 30, 2023 and 2022, respectively, and $411,000 and $374,000 for the nine months ended September 30, 2023 and 2022, respectively.

Costs associated with product sales include commissions and are recorded in selling, general and administrative (“SG&A”) expenses. The Company applies the practical expedient and recognizes commissions as an expense when incurred because the amortization period is less than one year.

Equity Investments

The Company has strategic investments in certain privately-held companies, with no readily determinable fair value. The Company measures these investments at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for an identical or similar investment. The Company will monitor the information that becomes available from time to time and adjust the carrying values of these investments if there are identified events or changes in circumstances that have a significant adverse effect on the fair values. Impairment loss, which is generally the difference between the carrying value and the fair value of the investment, is recorded in other income (expense) in the Statements of Operations and Comprehensive Income. As of September 30, 2023 and December 31, 2022, the Company’s equity investments were $8.3 million and were included in deposits and other assets on the condensed consolidated balance sheets. Additionally, during the three and nine months ended September 30, 2023, the Company recorded an impairment loss of $0.6 million in other income (expense) in the Statement of Operations and Comprehensive Income. There was no impairment loss recorded during the three and nine months ended September 30, 2022.

Supplemental Cash Flow Information

Supplemental cash flow information includes the following:

	Nine Months Ended September 30,
	2023		2022
Supplemental disclosures of cash flow information:
Cash paid for income taxes	$	3,562	$	3,085
Cash paid for interest	$	98	$	112
Noncash investing and financing:
Lease liabilities arising from obtaining new right-of-use assets	$	1,030	$	2,334

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Fair Value Measurements

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements

FAIR VALUE MEASUREMENTSInvestments in debt securities have been classified as available-for-sale and are carried at estimated fair value as determined based upon quoted market prices or pricing models for similar securities. As of September 30, 2023, all of the Company's investments in debt securities had maturities of less than 12 months and were classified as short-term investments on the condensed consolidated balance sheets.

The following tables summarize the Company’s financial assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	—		3,489		—		3,489
Total included in cash and cash equivalents	41,561		3,489		—		45,050
Investments:
U.S. Treasury securities	173,687		—		—		173,687
U.S. Government agencies	—		46,284		—		46,284
Corporate debt securities and commercial paper	—		42,142		—		42,142
Total included in short-term investments	173,687		88,426		—		262,113
Total financial assets	$	215,248	$	91,915	$	—	$	307,163

	December 31, 2022
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	172,088		—		—		172,088
U.S. Government agencies	—		47,131		—		47,131
Corporate debt securities and commercial paper	—		46,960		—		46,960
Total included in short-term investments	172,088		94,091		—		266,179
Total financial assets	$	192,417	$	94,091	$	—	$	286,508

There were no transfers between Levels 1, 2 or 3 for the periods presented.

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Cash Equivalents and Investments

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Cash Equivalents and Investments

CASH EQUIVALENTS AND INVESTMENTS

The following is a summary of the Company’s cash equivalents and investments in debt securities as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	3,490		—		(1)		3,489
Total included in cash and cash equivalents	45,051		—		(1)		45,050
Investments:
U.S. Treasury securities	173,690		9		(12)		173,687
U.S. Government agencies	46,309		7		(32)		46,284
Corporate debt securities and commercial paper	42,162		—		(20)		42,142
Total included in short-term investments	262,161		16		(64)		262,113
Total financial assets	$	307,212	$	16	$	(65)	$	307,163

	December 31, 2022
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	171,006		1,120		(38)		172,088
U.S. Government agencies	46,777		354		—		47,131
Corporate debt securities and commercial paper	46,576		397		(13)		46,960
Total included in short-term investments	264,359		1,871		(51)		266,179
Total financial assets	$	284,688	$	1,871	$	(51)	$	286,508

The Company regularly reviews any changes to the rating of its debt securities and reasonably monitors the surrounding economic conditions to assess the risk of expected credit losses. As of September 30, 2023, the risk of expected credit losses was not significant.

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Inventories, net

9 Months Ended

Sep. 30, 2023

Inventory Disclosure [Abstract]

Inventories, net

INVENTORIES, NET

Inventories, net of reserves, consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Raw materials	$	14,278	$	13,943
Work-in-process	4,117		3,396
Finished goods	21,832		15,242
Total inventories, net	$	40,227	$	32,581

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Property and Equipment, net

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Property and Equipment, net

PROPERTY AND EQUIPMENT, NET

Property and equipment consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Manufacturing equipment	$	15,827	$	13,585
Computer hardware	5,522		5,123
Leasehold improvements	5,248		5,040
Furniture and fixtures	4,380		4,119
Assets in progress	2,041		2,516
Capitalized software	881		—
Computer software	—		100
Total property and equipment, gross	33,899		30,483
Accumulated depreciation	(12,656)		(8,828)
Total property and equipment, net	$	21,243	$	21,655

Depreciation expense of $1,141,000 and $947,000 was included in operating expenses and $291,000 and $223,000 was included in cost of goods sold for the three months ended September 30, 2023 and 2022, respectively. Depreciation expense of $3,367,000 and $2,774,000 was included in operating expenses and $819,000 and $656,000 was included in cost of goods sold for the nine months ended September 30, 2023 and 2022, respectively.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

COMMITMENTS AND CONTINGENCIES

Operating Leases

The Company has operating leases for facilities and certain equipment. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet. Lease expense for operating leases is recognized on a straight-line basis over the lease term. For lease agreements, other than long-term real estate leases, the Company combines lease and non-lease components. The operating leases for facilities expire at various dates through July 2041 and some contain renewal options, the longest of which is for five years. The ROU asset and lease liability includes renewal options if the Company is reasonably certain to exercise such renewal options.

As of September 30, 2023, the aggregate operating lease ROU assets and lease liabilities were $49.1 million and $32.3 million, respectively, with the weighted average remaining lease term of 18.2 years. As of December 31, 2022, the aggregate operating lease ROU asset and lease liabilities were $50.7 million and $32.3 million, respectively, with the weighted average remaining lease term of 17.1 years.

As of September 30, 2023, the weighted average incremental borrowing rate used to measure operating lease liabilities was 6.05%. Cash paid for amounts included in the measurement of operating lease liabilities was $866,000 and $705,000 for the three months ended September 30, 2023 and 2022, respectively, and $2,564,000 and $2,030,000 for the nine months ended September 30, 2023 and 2022, respectively.

Total lease costs are as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Operating lease cost	$	1,137	$	1,039	$	3,456	$	3,139
Short-term lease cost	22		147		85		192
Variable lease cost	402		181		809		477
Total lease costs	$	1,561	$	1,367	$	4,350	$	3,808

Future minimum lease payments under operating leases liabilities as of September 30, 2023 are as follows (in thousands):

Year ending December 31:	Amount
Remainder of 2023	$	877
2024	3,546
2025	3,032
2026	2,911
2027	2,978
Thereafter	38,507
Total lease payments	51,851
Less imputed interest	(19,594)
Total lease liabilities	32,257
Less: lease liabilities - current portion	(1,630)
Lease liabilities - noncurrent portion	$	30,627

The Company signed a ten-year lease for real estate in October 2023, with total undiscounted contractual payments for the three year term of the lease of $7.2 million, which are expected to commence in October 2024.

Indemnification

In the normal course of business, the Company enters into contracts and agreements that contain a variety of representations and warranties and may provide for general indemnifications. The Company’s exposure under these agreements is unknown because it involves claims that may be made against the Company in the future but have not yet been made. To date, the Company has not been subject to any claims or required to defend any action related to its indemnification obligations.

The Company’s amended and restated certificate of incorporation contains provisions limiting the liability of directors, and its amended and restated bylaws provide that the Company will indemnify each of its directors to the fullest extent permitted under Delaware law. The Company’s amended and restated certificate of incorporation and amended and restated bylaws also provide its board of directors with discretion to indemnify its officers and employees when determined appropriate by the board. In addition, the Company has entered and expects to continue to enter into agreements to indemnify its directors and executive officers.

Legal Proceedings

From time to time, the Company may become involved in legal proceedings arising out of the ordinary course of its business. Management is currently not aware of any matters that will have a material adverse effect on the consolidated financial position, results of operations or cash flows of the Company.

Licensed Technology

In December 2021, the Company entered into an exclusive, perpetual, royalty free, technology license agreement for use in a particular research and development project that requires total payments of approximately $4.2 million payable in three installments due in 2022 and 2023. The Company accounted for the purchase as a research and development expense as it was determined to have no alternative future use. As of September 30, 2023, there was no outstanding balance as the Company satisfied its last installment payment during the three months ended September 30, 2023. As of December 31, 2022, the outstanding balance was approximately $1.3 million which was included in accrued expenses and other current liabilities on the condensed consolidated balance sheets.

Sublicense Agreement

In August 2019, the Company entered into a sublicense agreement with Inceptus Medical, LLC (“Inceptus”), pursuant to which Inceptus granted to the Company a non-transferable, worldwide, exclusive sublicense to its licensed intellectual property rights related to the tubular braiding for the non-surgical removal of clots and treatment of embolism and thrombosis in human vasculature other than carotid arteries, coronary vasculature and cerebral vasculature.

Under the sublicense agreement, the Company was required to pay an ongoing quarterly administration fee, which amounted to nil and $29,000 for the three months ended September 30, 2023 and 2022 respectively, and $59,000 and $87,000 for the nine months ended September 30, 2023 and 2022 respectively. Additionally, the Company was obligated to pay an ongoing royalty ranging from 1.0% to 1.5% of the net sales of products utilizing the licensed intellectual property, subject to a minimum royalty quarterly fee of $1,500. In June 2023, the sublicense agreement was terminated and the Company is no longer required to pay any ongoing administration or royalty fees following the termination.

The Company recorded royalty expense of $1,500 to cost of goods sold for both the three months ended September 30, 2023 and 2022, and recorded $5,000 and $215,000 for the nine months ended September 30, 2023 and 2022, respectively.

Self-Insured Health Plan

As of January 1, 2023, the Company implemented a self-insurance program to cover employees and their dependent health benefits, including medical, dental and vision. As part of the program, the Company also has stop-loss coverage from a third party which limits the exposure to large claims. The Company records a liability associated with these benefits that includes an estimate of both claims filed and losses incurred but not yet reported based on historical claims experience. In estimating this accrual, the Company utilizes an independent third-party broker to estimate a range of expected losses, which are based on analyses of historical data. The assumptions are closely monitored and adjusted when necessary by changing circumstances. If the liability generated from incurred claims exceeds the expense recorded, the Company may record an additional expense. As of September 30, 2023, the Company's self-insurance liability, inclusive of administrative fees, was $2.1 million, which is included in accrued expenses and other current liabilities on the condensed consolidated balance sheets.

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Concentrations

9 Months Ended

Sep. 30, 2023

Risks and Uncertainties [Abstract]

Concentrations

CONCENTRATIONS

The Company’s revenue is derived primarily from the sale of catheter-based therapeutic devices in the United States. For the three and nine months ended September 30, 2023 and 2022, there were no customers which accounted for more than 10% of the Company’s revenue. As of September 30, 2023 and December 31, 2022, there were no customers that accounted for more than 10% of the Company’s accounts receivable.

No vendor accounted for more than 10% of the Company’s purchases for the three and nine months ended September 30, 2023 and 2022. There were no vendors that accounted for more than 10% of the Company’s accounts payable as of September 30, 2023 and December 31, 2022.

In early 2023, certain U.S. banks failed and the regulators appointed the Federal Deposit Insurance Corporation (“FDIC”) to act as receiver, which created significant market disruption and uncertainty with respect to the financial condition of the banking institutions in the U.S. While the Company does not have any direct exposure to these banks, the Company does maintain its cash and cash equivalents at multiple financial institutions in excess of the current FDIC insurance limits.

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Related Party	9 Months Ended
	Sep. 30, 2023
Related Party Transactions [Abstract]
Related Party	RELATED PARTYThe Company utilizes MRI The Hoffman Group (“MRI”), a recruiting services company owned by the brother of the former Chief Executive Officer and President and current member of the board of directors of the Company. The Company paid for recruiting services provided by MRI amounting to $67,000 and $70,000 for the three months ended September 30, 2023 and 2022, respectively, and $147,000 and $262,000 for the nine months ended September 30, 2023 and 2022, respectively, which was included in SG&A expenses on the condensed consolidated statements of operations and comprehensive income (loss). As of September 30, 2023 and December 31, 2022, there was no balance payable to MRI.

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Credit Facility

9 Months Ended

Sep. 30, 2023

Debt Disclosure [Abstract]

Credit Facility

CREDIT FACILITY

Bank of America Credit Facility

On December 16, 2022, the Company amended its senior secured revolving credit facility with Bank of America (the “Amended Credit Agreement”) to, among other things, increase the amount available for borrowing to up to a maximum principal amount of $40.0 million and increase the optional accordion to $120.0 million. The Amended Credit Agreement matures on December 16, 2027. The amount available to borrow under the Amended Credit Agreement as of September 30, 2023 is approximately $37.6 million, comprised of: a) 90% of eligible accounts receivable, plus b) pledged cash (up to $10.0 million).

Advances under the Amended Credit Agreement will bear interest at a base rate per annum (the “Base Rate”) plus an applicable margin (the “Margin”). The Base Rate equals the greater of (i) the Prime Rate, (ii) the Federal funds rate, plus 0.50%, or (iii) the Bloomberg Short-Term Bank Yield Index (“BSBY”) rate based upon an interest period of one month plus 1.00%, in any case has a floor of 0%. The Margin ranges, depending on average daily availability, from 0.50% to 1.00% in the case of Prime Rate and the Federal funds rate loans, and from 1.50% to 2.00% in the case of BSBY Rate loans. As a condition to entering into the Amended Credit Agreement, the Company was obligated to pay a nonrefundable fee of $10,000. The Company is also required to pay an unused line fee at an annual rate of 0.25% per annum of the average daily unused portion of the aggregate revolving credit commitments under the Amended Credit Agreement.

The Amended Credit Agreement also includes a Letter of Credit subline facility (the “LC Facility”) of up to $5.0 million. In February 2023, the Company amended the LC Facility to increase the limit to up to $10.0 million. The aggregate stated amount outstanding of letters of credit reduces the total borrowing base available under the Amended Credit Agreement. The Company is required to pay the following fees under the LC Facility: (a) a fee equal to the applicable margin in effect for BSBY loans (currently 2.25%) times the average daily stated amount of outstanding letters of credit; and (b) a fronting fee equal to 0.125% per annum on the stated amount of each letter of credit outstanding. As of September 30, 2023, the Company had four letters of credit in the aggregated amount of $2.4 million outstanding under the LC Facility.

The Amended Credit Agreement contains certain customary covenants subject to certain exceptions, including, among others, the following: a fixed charge coverage ratio covenant, and limitations of indebtedness, liens, investments, asset sales, mergers, consolidations, liquidations, dispositions, restricted payments, transactions with affiliates and prepayments of certain debt. The Amended Credit Agreement also contains certain events of default subject to certain customary grace periods, including, among others, payment defaults, breaches of any representation, warranty or covenants, judgment defaults, cross defaults to certain other contracts, bankruptcy and insolvency defaults, material judgment defaults and a change of control default.

As of September 30, 2023, there was no principal amount outstanding and no cash was pledged under the Amended Credit Agreement, and the Company was in compliance with its covenant requirement. Obligations under the Credit Agreement are secured by substantially all of the Company’s assets, excluding intellectual property.

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Stockholder's Equity

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Stockholder's Equity

STOCKHOLDER'S EQUITY

Common Stock

In March 2022, the Company completed an underwritten public offering (“Follow-On Offering”) of 2,300,000 shares of its common stock, including 300,000 shares sold pursuant to the underwriters’ exercise of their option to purchase additional shares, at a public offering price of $81.00 per share. The Company received net proceeds of approximately $174.4 million, after deducting underwriters’ discounts and commissions of $11.2 million and offering costs of $0.7 million.

Accumulated Other Comprehensive Income (Loss)

The Company’s accumulated other comprehensive income (loss) includes $1.1 million loss on foreign currency translation adjustments and less than $0.1 million of unrealized loss on investments as of September 30, 2023, and $1.0 million loss on foreign currency translation adjustments and $1.8 million of unrealized gain on investments as of December 31, 2022. There were no reclassification adjustments from accumulated other comprehensive income (loss) during the nine months ended September 30, 2023 and 2022.

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Equity Incentive Plans

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Equity Incentive Plans

EQUITY INCENTIVE PLANS

In 2011, the Company adopted the 2011 Equity Incentive Plan (the “2011 Plan”) to permit the grant of share-based awards, such as stock grants and incentives and non-qualified stock options to employees and directors. The Board has the authority to determine to whom awards will be granted, the number of shares, the term and the exercise price.

In March 2020, the Company adopted the 2020 Incentive Award Plan (the “2020 Plan”), which became effective in connection with the Company’s initial public offering in May 2020 (“IPO”). As a result, the Company may not grant any additional awards under the 2011 Plan. The 2011 Plan will continue to govern outstanding equity awards granted thereunder. In addition, the number of shares of common stock reserved for issuance under the 2020 Plan will automatically increase on the first day of January for a period of up to ten years, commencing on January 1, 2021, in an amount equal to 3% of the total number of shares of the Company’s capital stock outstanding on the last day of the preceding year, or a lesser number of shares determined by the Company’s board of directors. As of September 30, 2023, there were 6,523,570 shares available for issuance under the 2020 Plan, including 1,620,650 additional shares reserved effective January 1, 2023.

2011 Equity Incentive Plan

Restricted Stock Units

In March 2019, the Company granted, under the 2011 Plan, restricted stock unit awards (“RSUs”) to certain employees that vest only upon the satisfaction of both a time-based service condition and a performance-based condition that was satisfied on the effective date of the IPO of the Company’s common stock. The RSUs were subject to four-year cliff vesting and vested in full in March 2023. The vesting was also subject to a market-based condition related to the value of the Company’s common stock as of the vesting date. As a result of exceeding the value of the Company's common stock as set forth in the grant agreement, the maximum amount of RSUs were earned and vested during the nine months ended September 30, 2023.

RSU activity under the 2011 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	2,712,674	$	0.17
Vested	(2,712,674)	(a)
Outstanding, September 30, 2023	—	$	—

_____________

(a) The vested RSUs will be distributed to the employees in installments. The first installment was distributed in the quarter ended March 31, 2023 with a weighted average fair value of $64.34. The second installment was distributed in the quarter ended June 30, 2023 with a weighted average fair value of $71.17. The third installment was distributed in the quarter ended September 30, 2023 with a weighted average fair value of $68.33. The remaining shares will be distributed within the quarter ended December 31, 2023.

The total fair value of RSUs vested under the 2011 Plan was $170.6 million for the nine months ended September 30, 2023. No RSUs had vested under the 2011 plan for the nine months ended September 30, 2022.

Stock Options

A summary of stock option activity under the 2011 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	1,456,328	$	1.93	6.20	$	89,749
Exercised	(334,351)	$	1.48		$	20,583
Cancelled	(3,324)	$	5.02
Outstanding, September 30, 2023	1,118,653	$	2.06	5.40	$	70,857
Vested and exercisable at September 30, 2023	1,091,976	$	1.95	5.40	$	69,283
Vested and expected to vest at September 30, 2023	1,118,415	$	2.06	5.40	$	70,843

The aggregate intrinsic values of options outstanding, vested and exercisable, and vested and expected to vest were calculated as the difference between the exercise price of the options and the market value of the Company’s common stock.

2020 Incentive Award Plan

Restricted Stock Units

RSUs are share awards that entitle the holder to receive freely tradable shares of the Company’s common stock upon vesting. The RSUs cannot be transferred and the awards are subject to forfeiture if the holder’s employment terminates prior to the release of the vesting restrictions. The RSUs generally vest either over a four-year period with straight-line vesting in equal amounts on a quarterly basis or a 25% one-year cliff vesting with remaining RSUs vest over a three-year period in equal amounts on a quarterly basis, provided the employee remains continuously employed with the Company. The fair value of the RSUs is equal to the closing price of the Company’s common stock on the grant date.

RSU activity under the 2020 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	999,215	$	79.16
Granted	778,398	58.56
Vested	(343,689)	74.28
Cancelled	(103,667)	73.67
Outstanding, September 30, 2023	1,330,257	$	68.79

The total fair value of RSUs vested under the 2020 Plan was $6.9 million and $4.5 million for the three months ended September 30, 2023 and 2022, respectively, and $21.0 million and $15.3 million for the nine months ended September 30, 2023 and 2022, respectively.

Stock options

During the nine months ended September 30, 2023, the Company granted non-qualified stock options to certain employees with vesting over a four-year period on a quarterly basis. The fair value of the stock options was calculated using the Black-Scholes option pricing model, which requires valuation assumptions of expected term, expected volatility, risk-free interest rate, and expected dividend yield. For the purposes of the Black-Scholes valuation model, the Company used the simplified method for determining the expected term of the granted options. The simplified method was used since the Company does not have adequate historical data to utilize in calculating the expected term of options. The fair value for options granted was calculated using the following weighted average assumptions:

	Nine Months Ended September 30, 2023
Expected term (in years)	4.56
Expected volatility	50.35%
Dividend yield	0.00%
Risk free interest rate	4.05%
Weighted-average fair value of options granted	$25.98 per share

A summary of stock option activities under the 2020 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	—	$	—	—	$	—
Granted	181,870	$	56.00
Exercised	(916)	$	56.00		$	9
Cancelled	(9,428)	$	56.00
Outstanding, September 30, 2023	171,526	$	56.00	6.40	$	1,612
Vested and exercisable at September 30, 2023	21,429	$	56.00	6.20	$	201
Vested and expected to vest at September 30, 2023	158,495	$	56.00	6.40	$	1,490

Employee Stock Purchase Plan

In May 2020, the Company adopted the 2020 Employee Stock Purchase Plan (“ESPP”), which was amended and restated in October 2020 by the Compensation Committee of the Company’s board of directors. Each offering to the employees to purchase stock under the ESPP will begin on each August 1 and February 1 and will end on the following January 31 and July 31, respectively. The first offering period began on August 1, 2020. On each purchase date, which falls on the last date of each offering period, ESPP participants will purchase shares of common stock at a price per share equal to 85% of the lesser of (1) the fair market value per share of the common stock on the offering date or (2) the fair market value of the common stock on the purchase date. The occurrence and duration of offering periods under the ESPP are subject to the determinations of the Compensation Committee, in its sole discretion. The number of shares available for issuance under the ESPP increases automatically on January 1 of each calendar year of the Company beginning in 2021 and ending in 2030, in an amount equal to the lesser of (i) 1% of the aggregate number of outstanding shares of the Company’s common stock on the final day of the immediately preceding calendar year and (ii) such smaller number of shares determined by the Company’s board of directors.

The fair value of the ESPP shares is estimated using the Black-Scholes option pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Expected term (in years)	0.5		0.5
Expected volatility	42.08% - 49.89%		56.09% - 72.78%
Dividend yield	0.00	%	0.00	%
Risk free interest rate	4.79% - 5.54%		0.48% - 2.96%

As of September 30, 2023, a total of (i) 423,109 shares of common stock, including 118,494 shares purchased in July 2023 and 86,051 shares purchased in January 2023, have been purchased under the ESPP, and (ii) 2,103,629 shares of common stock are reserved under the ESPP for future purchases, including 540,217 additional shares, which were automatically added to the reserve on January 1, 2023 pursuant to the terms of the ESPP.

Stock-based Compensation Expense

Total compensation cost for all share-based payment arrangements recognized, including $0.7 million and $0.8 million for the three months ended September 30, 2023 and 2022, respectively, and $2.9 million and $2.5 million for nine months ended September 30, 2023 and 2022, respectively, of stock-based compensation expense related to the ESPP, was as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of goods sold	$	393	$	386	$	1,232	$	1,126
Research and development	1,587		1,051		4,981		3,143
Selling, general and administrative	7,864		5,919		24,323		16,806
	$	9,844	$	7,356	$	30,536	$	21,075

Total stock-based compensation expense as of September 30, 2023 related to all non-vested awards to be recognized in future periods was $78.9 million and is expected to be recognized over the remaining weighted average period of 2.7 years.

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Income Taxes

9 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

The following table reflects the Company’s provision for income taxes for the periods indicated (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Income (loss) before income taxes	$	5,590	$	(9,313)	$	7,420		$	(21,377)
Provision for income taxes	2,428		840		4,391			2,092
Net income (loss)	$	3,162	$	(10,153)	$	3,029		$	(23,469)
Provision for income taxes as a percentage of income (loss) before income taxes	43.4%		(9.0%)		59.2		%	(9.8		%)

The effective tax rate for all periods is driven by pre-tax income/(loss), business credits, equity compensation, state taxes, and the change in valuation allowance. The Company's income tax provision for interim reporting periods historically has been calculated by applying an estimate of the annual effective income tax rate for the full year to “ordinary” income (loss) for the interim reporting period. In addition, the tax effects of certain significant or unusual items are recognized discretely in the quarter in which they occur. For the nine months ended September 30, 2023, the Company calculated the income tax provision using this methodology. For the nine months ended September 30, 2022, a discrete effective income tax rate method was used as if the interim year to date period was an annual period.

For tax years beginning after December 31, 2021, certain research and development costs are required to be capitalized and amortized over a five year period under the Tax Cuts and Jobs Act, which was signed into law December 22, 2017. The Company has reviewed and incorporated this change, which will impact the expected U.S. federal and state tax expense and cash taxes to be paid for the tax year ending December 31, 2023.

Valuation Allowance

ASC 740, Income Taxes requires that the tax benefit of net operating losses, or NOLs, temporary differences and credit carryforwards be recorded as an asset to the extent that management assesses that realization is “more likely than not.” Realization of the future tax benefits is dependent on the Company’s ability to generate sufficient taxable income within the carryback or carryforward periods. As of December 31, 2022, the Company maintained a full valuation allowance of $30.3 million against the Company's net deferred tax assets. As of September 30, 2023, the Company believes that the deferred tax assets are currently not considered more likely than not to be realized and, accordingly, has maintained a full valuation allowance against its deferred tax assets. The Company will continue to assess its position on the realizability of its deferred tax assets, until such time as sufficient positive evidence may become available to allow the Company to reach a conclusion that a significant portion of the valuation allowance will no longer be needed. Any release of the valuation allowance may result in a material benefit recognized in the quarter of release.

Uncertain Tax Positions

The Company has recorded uncertain tax positions related to its federal and California research and development credit carryforwards. No interest or penalties have been recorded related to the uncertain tax positions due to credit carryforwards that are available to offset the uncertain tax positions. It is not expected that there will be a significant change in the uncertain tax position in the next twelve months. The Company is subject to U.S. federal and state income tax as well as to income tax in various foreign jurisdictions. In the normal course of business, the Company is subject to examination by tax authorities. As of the date of the financial statements, there are no income tax examinations in progress. The statute of limitations for tax years ended after December 31, 2019, December 31, 2018, and December 31, 2017 are open for federal and state, and foreign tax purposes, respectively.

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Retirement Plan	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Retirement Plan	RETIREMENT PLANIn December 2017, the Company adopted the Inari Medical, Inc. 401(k) Plan which allows eligible employees after one month of service to contribute pre-tax and Roth contributions to the plan, as allowed by law. The plan assets are held by Vanguard and the plan administrator is Ascensus Trust Company. Beginning in January 2021, the Company contributes a $1.00 match for every $1.00 contributed by a participating employee up to the greater of $3,000 or 4% of eligible compensation under the plan, with such Company's contributions becoming fully vested immediately. Matching contribution expense was $2.0 million and $1.7 million for the three months ended September 30, 2023 and 2022, respectively, and $6.9 million and $6.2 million for the nine months ended September 30, 2023 and 2022, respectively.

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Net Income (Loss) Per Share

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

NET INCOME (LOSS) PER SHARE

Basic net income (loss) per share is computed by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period, without consideration for potential dilutive common shares. Diluted net income (loss) per share is computed using the treasury stock method by dividing the net income (loss) attributable to common stockholders by the weighted average number of shares of common stock and potentially dilutive securities outstanding for the period. For purposes of the diluted net income (loss) per share calculation, shares from common stock options, RSUs and ESPP are potentially dilutive securities. For the periods the Company is in a net loss position, basic net loss per share is the same as diluted net loss per share as the inclusion of all potential dilutive common shares would have been anti-dilutive.

The components of net income (loss) per share are as follows (in thousands, except per share amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Numerator:
Net income (loss)	$	3,162	$	(10,153)	$	3,029	$	(23,469)
Denominator:
Weighted average number of common shares outstanding - basic	57,384,884		53,491,625		56,478,317		52,552,662
Common stock equivalents from outstanding options	1,102,642		—		1,173,190		—
Common stock equivalents from unvested RSUs	94,531		—		832,873		—
Common stock equivalents from ESPP	6,395		—		11,541		—
Weighted average number of common shares outstanding - diluted	58,588,452		53,491,625		58,495,921		52,552,662
Net income (loss) per share:
Basic	$	0.06	$	(0.19)	$	0.05	$	(0.45)
Diluted	$	0.05	$	(0.19)	$	0.05	$	(0.45)

The following outstanding potentially dilutive common stock equivalents have been excluded from the calculation of diluted net income (loss) per share due to their anti-dilutive effect:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2023	2022	2023	2022
Common stock options	171,526	1,838,562	1,290,179	1,838,562
RSUs	555,468	3,694,930	1,332,500	3,694,930
	726,994	5,533,492	2,622,679	5,533,492

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Subsequent Events

9 Months Ended

Sep. 30, 2023

Subsequent Events [Abstract]

Subsequent Events

SUBSEQUENT EVENTS

On November 1, 2023, the Company announced that it entered into a share purchase agreement (the “Purchase Agreement”) to acquire LimFlow, S.A. (“LimFlow”), a medical device company focused on limb salvage for patients with chronic limb-threatening ischemia (the “LimFlow Acquisition”). Under the terms of the Purchase Agreement, the Company will pay $250 million in cash at closing, subject to adjustment based on the working capital, indebtedness, cash and transaction expenses of LimFlow. Additional contingent payments of up to $165 million will be payable depending on the achievement of certain commercial and reimbursement milestones. The Company expects to fund this acquisition via its existing cash and the availability under its credit facility. The LimFlow Acquisition is expected to close in the fourth quarter of the year ended December 31, 2023 and is subject to certain customary closing conditions set forth in the Purchase Agreement.

On November 1, 2023, the Company amended its credit facility to, among other things, increase the amount available for borrowing to up to a maximum principal amount of $75.0 million. Additionally, advances under this amended credit agreement will bear interest at a base rate per annum (“the Base Rate”) or the Bloomberg Short-Term Bank Yield Index (“the BSBY”) rate, plus an applicable margin (“the Margin”). The Margin ranges from 0.60% to 1.10% in the case of the Base Rate loans and 1.60% to 2.10% in the case of the BSBY rate loans depending on average daily availability, in each case with a floor of 0%. As a condition of entering into this amended credit agreement, the Company was obligated to pay a nonrefundable fee of $88,000. Lastly, the Company amended the LC Facility to increase the limit to up to $18.8 million.

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Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Pay vs Performance Disclosure
Net Income (Loss)	$ 3,162	$ 2,085	$ (2,218)	$ (10,153)	$ (10,187)	$ (3,129)	$ 3,029	$ (23,469)

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Insider Trading Arrangements	3 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) and include the Company and its wholly owned subsidiaries. All intercompany balances and transactions have been eliminated in consolidation.

The interim condensed consolidated balance sheet as of September 30, 2023 and the condensed consolidated statements of operations and comprehensive income (loss), stockholders’ equity, and cash flows for the three and nine months ended September 30, 2023 and 2022 are unaudited. The consolidated balance sheet as of December 31, 2022 included herein was derived from the audited consolidated financial statements as of that date. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the annual consolidated financial statements and reflect, in the opinion of management, all adjustments of a normal and recurring nature that are necessary for the fair presentation of the Company’s condensed consolidated financial position as of September 30, 2023 and its consolidated results of operations and cash flows for the three and nine months ended September 30, 2023 and 2022. The financial data and the other financial information disclosed in the notes to the condensed consolidated financial statements related to the three and nine months ended September 30, 2023 and 2022 are also unaudited. The condensed consolidated results of operations for any interim period are not necessarily indicative of the results to be expected for the full year or for any other future annual or interim period. These interim condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2022.

Management Estimates

Management Estimates

The preparation of financial statements in conformity with U.S. 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 revenue and expenses during the reporting period. Significant estimates and assumptions made in the accompanying condensed consolidated financial statements may include, but are not limited to, collectability of receivables, recoverability of long-lived assets, valuation of inventory, operating lease right-of-use (“ROU”) assets and liabilities, other investments, fair value of stock options, recoverability of net deferred tax assets and related valuation allowance, and certain accruals. Estimates are based on historical experience and on various assumptions that the Company believes are reasonable under current circumstances. Actual results could differ materially from those estimates. Management periodically evaluates such estimates and assumptions, and they are adjusted prospectively based upon such periodic evaluation.

Revenue Recognition

Revenue Recognition

The Company recognizes revenue in accordance with ASC 606, Revenue from Contracts with Customers. Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services, in an amount that reflects the consideration which the Company expects to receive in exchange for those goods or services. To determine revenue recognition for arrangements that are within the scope of ASC 606, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to

the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation.

The Company sells its products primarily to hospitals in the United States through its direct sales force. The Company recognizes revenue for arrangements where the Company has satisfied its performance obligation of shipping or delivering the product. For sales where the Company’s sales representatives hand-deliver products directly to the hospitals, control of the products transfers to the customers upon such hand- delivery. For sales where products are shipped, control of the products transfers either upon shipment or delivery of the products to the customer, depending on the shipping terms and conditions. Revenue from product sales is comprised of product revenue, net of product returns, discounts, administrative fees and sales rebates.

Performance Obligation—The Company has revenue arrangements that consist of a single performance obligation, the shipping or delivery of the Company’s products. The satisfaction of this performance obligation occurs with the transfer of control of the Company’s product to its customers, either upon shipment or delivery of the product.

Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring goods. The amount of revenue recognized is based on the transaction price, which represents the invoiced amount, net of discounts, administrative fees and sales rebates, where applicable. The Company provides a standard 30-day unconditional right of return period. The Company establishes estimated provisions for returns at the time of sale based on historical experience. Historically, the actual product returns have been immaterial to the Company’s consolidated financial statements.

The Company offers payment terms to its customers of less than three months and these terms do not include a significant financing component. The Company excludes taxes assessed by governmental authorities on revenue-producing transactions from the measurement of the transaction price.

The Company offers its standard warranty to all customers. The Company does not sell any warranties on a standalone basis. The Company’s warranty provides that its products are free of material defects and conform to specifications, and includes an offer to repair, replace or refund the purchase price of defective products. This assurance does not constitute a service and is not considered a separate performance obligation. The Company estimates warranty liabilities at the time of revenue recognition and records it as a charge to cost of goods sold. The warranty expense recognized was $57,000 and $165,000 during the three months ended

September 30, 2023 and 2022, respectively, and $411,000 and $374,000 for the nine months ended September 30, 2023 and 2022, respectively.

Costs associated with product sales include commissions and are recorded in selling, general and administrative (“SG&A”) expenses. The Company applies the practical expedient and recognizes commissions as an expense when incurred because the amortization period is less than one year.

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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Schedule of Concentration Risk

Revenue for ClotTriever and other systems and FlowTriever system as a percentage of total revenue is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
ClotTriever and other systems	32	%	31	%	34	%	32	%
FlowTriever system	68	%	69	%	66	%	68	%

Schedule of Disaggregation of Revenue

Revenue from the Company's products by geographic area, based on the location where title transfers, is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
United States	$	119,825	$	93,597	$	345,473	$	269,584
International	6,541		2,607		16,065		6,116
Total revenue	$	126,366	$	96,204	$	361,538	$	275,700

Schedule of Cash Flow, Supplemental Disclosures

Supplemental cash flow information includes the following:

	Nine Months Ended September 30,
	2023		2022
Supplemental disclosures of cash flow information:
Cash paid for income taxes	$	3,562	$	3,085
Cash paid for interest	$	98	$	112
Noncash investing and financing:
Lease liabilities arising from obtaining new right-of-use assets	$	1,030	$	2,334

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value

The following tables summarize the Company’s financial assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	—		3,489		—		3,489
Total included in cash and cash equivalents	41,561		3,489		—		45,050
Investments:
U.S. Treasury securities	173,687		—		—		173,687
U.S. Government agencies	—		46,284		—		46,284
Corporate debt securities and commercial paper	—		42,142		—		42,142
Total included in short-term investments	173,687		88,426		—		262,113
Total financial assets	$	215,248	$	91,915	$	—	$	307,163

	December 31, 2022
	Level 1		Level 2		Level 3		Aggregate Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	172,088		—		—		172,088
U.S. Government agencies	—		47,131		—		47,131
Corporate debt securities and commercial paper	—		46,960		—		46,960
Total included in short-term investments	172,088		94,091		—		266,179
Total financial assets	$	192,417	$	94,091	$	—	$	286,508

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Cash Equivalents and Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Summary of Cash Equivalents and Investments

The following is a summary of the Company’s cash equivalents and investments in debt securities as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	41,561	$	—	$	—	$	41,561
Corporate debt securities and commercial paper	3,490		—		(1)		3,489
Total included in cash and cash equivalents	45,051		—		(1)		45,050
Investments:
U.S. Treasury securities	173,690		9		(12)		173,687
U.S. Government agencies	46,309		7		(32)		46,284
Corporate debt securities and commercial paper	42,162		—		(20)		42,142
Total included in short-term investments	262,161		16		(64)		262,113
Total financial assets	$	307,212	$	16	$	(65)	$	307,163

	December 31, 2022
	Amortized Cost Basis		Unrealized Gain		Unrealized Loss		Fair Value
Financial Assets
Cash and cash equivalents:
Money market mutual funds	$	20,329	$	—	$	—	$	20,329
Total included in cash and cash equivalents	20,329		—		—		20,329
Investments:
U.S. Treasury securities	171,006		1,120		(38)		172,088
U.S. Government agencies	46,777		354		—		47,131
Corporate debt securities and commercial paper	46,576		397		(13)		46,960
Total included in short-term investments	264,359		1,871		(51)		266,179
Total financial assets	$	284,688	$	1,871	$	(51)	$	286,508

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Inventories, net (Tables)

9 Months Ended

Sep. 30, 2023

Inventory Disclosure [Abstract]

Schedule of Inventories, Net

Inventories, net of reserves, consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Raw materials	$	14,278	$	13,943
Work-in-process	4,117		3,396
Finished goods	21,832		15,242
Total inventories, net	$	40,227	$	32,581

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Property and Equipment, net (Tables)

9 Months Ended

Sep. 30, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment, Net

Property and equipment consist of the following (in thousands):

	September 30, 2023		December 31, 2022
Manufacturing equipment	$	15,827	$	13,585
Computer hardware	5,522		5,123
Leasehold improvements	5,248		5,040
Furniture and fixtures	4,380		4,119
Assets in progress	2,041		2,516
Capitalized software	881		—
Computer software	—		100
Total property and equipment, gross	33,899		30,483
Accumulated depreciation	(12,656)		(8,828)
Total property and equipment, net	$	21,243	$	21,655

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Schedule of Total Lease Cost

Total lease costs are as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Operating lease cost	$	1,137	$	1,039	$	3,456	$	3,139
Short-term lease cost	22		147		85		192
Variable lease cost	402		181		809		477
Total lease costs	$	1,561	$	1,367	$	4,350	$	3,808

Schedule of Future Minimum Lease Payments Under Operating Leases Liabilities

Future minimum lease payments under operating leases liabilities as of September 30, 2023 are as follows (in thousands):

Year ending December 31:	Amount
Remainder of 2023	$	877
2024	3,546
2025	3,032
2026	2,911
2027	2,978
Thereafter	38,507
Total lease payments	51,851
Less imputed interest	(19,594)
Total lease liabilities	32,257
Less: lease liabilities - current portion	(1,630)
Lease liabilities - noncurrent portion	$	30,627

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Equity Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Summary of RSU Activity

RSU activity under the 2011 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	2,712,674	$	0.17
Vested	(2,712,674)	(a)
Outstanding, September 30, 2023	—	$	—

_____________

(a) The vested RSUs will be distributed to the employees in installments. The first installment was distributed in the quarter ended March 31, 2023 with a weighted average fair value of $64.34. The second installment was distributed in the quarter ended June 30, 2023 with a weighted average fair value of $71.17. The third installment was distributed in the quarter ended September 30, 2023 with a weighted average fair value of $68.33. The remaining shares will be distributed within the quarter ended December 31, 2023.

RSU activity under the 2020 Plan is set forth below:

	Number of Awards	Weighted Average Fair Value
Outstanding, December 31, 2022	999,215	$	79.16
Granted	778,398	58.56
Vested	(343,689)	74.28
Cancelled	(103,667)	73.67
Outstanding, September 30, 2023	1,330,257	$	68.79

Schedule of Estimated Fair Value of Option Grant and ESPP

The fair value for options granted was calculated using the following weighted average assumptions:

	Nine Months Ended September 30, 2023
Expected term (in years)	4.56
Expected volatility	50.35%
Dividend yield	0.00%
Risk free interest rate	4.05%
Weighted-average fair value of options granted	$25.98 per share

The fair value of the ESPP shares is estimated using the Black-Scholes option pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Expected term (in years)	0.5		0.5
Expected volatility	42.08% - 49.89%		56.09% - 72.78%
Dividend yield	0.00	%	0.00	%
Risk free interest rate	4.79% - 5.54%		0.48% - 2.96%

Summary of Stock Option Activity

A summary of stock option activity under the 2011 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	1,456,328	$	1.93	6.20	$	89,749
Exercised	(334,351)	$	1.48		$	20,583
Cancelled	(3,324)	$	5.02
Outstanding, September 30, 2023	1,118,653	$	2.06	5.40	$	70,857
Vested and exercisable at September 30, 2023	1,091,976	$	1.95	5.40	$	69,283
Vested and expected to vest at September 30, 2023	1,118,415	$	2.06	5.40	$	70,843

A summary of stock option activities under the 2020 Plan for the nine months ended September 30, 2023 is as follows (intrinsic value in thousands):

	Number of Awards	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)	Intrinsic Value
Outstanding, December 31, 2022	—	$	—	—	$	—
Granted	181,870	$	56.00
Exercised	(916)	$	56.00		$	9
Cancelled	(9,428)	$	56.00
Outstanding, September 30, 2023	171,526	$	56.00	6.40	$	1,612
Vested and exercisable at September 30, 2023	21,429	$	56.00	6.20	$	201
Vested and expected to vest at September 30, 2023	158,495	$	56.00	6.40	$	1,490

Schedule of Total Compensation Cost for All Share-Based Payment Arrangements Recognized

Total compensation cost for all share-based payment arrangements recognized, including $0.7 million and $0.8 million for the three months ended September 30, 2023 and 2022, respectively, and $2.9 million and $2.5 million for nine months ended September 30, 2023 and 2022, respectively, of stock-based compensation expense related to the ESPP, was as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of goods sold	$	393	$	386	$	1,232	$	1,126
Research and development	1,587		1,051		4,981		3,143
Selling, general and administrative	7,864		5,919		24,323		16,806
	$	9,844	$	7,356	$	30,536	$	21,075

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Income Taxes (Tables)

9 Months Ended

Sep. 30, 2023

Income Tax Disclosure [Abstract]

Schedule of Provision for Income Taxes

The following table reflects the Company’s provision for income taxes for the periods indicated (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023			2022
Income (loss) before income taxes	$	5,590	$	(9,313)	$	7,420		$	(21,377)
Provision for income taxes	2,428		840		4,391			2,092
Net income (loss)	$	3,162	$	(10,153)	$	3,029		$	(23,469)
Provision for income taxes as a percentage of income (loss) before income taxes	43.4%		(9.0%)		59.2		%	(9.8		%)

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Net Income (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Components of Net Income per Share

The components of net income (loss) per share are as follows (in thousands, except per share amounts):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Numerator:
Net income (loss)	$	3,162	$	(10,153)	$	3,029	$	(23,469)
Denominator:
Weighted average number of common shares outstanding - basic	57,384,884		53,491,625		56,478,317		52,552,662
Common stock equivalents from outstanding options	1,102,642		—		1,173,190		—
Common stock equivalents from unvested RSUs	94,531		—		832,873		—
Common stock equivalents from ESPP	6,395		—		11,541		—
Weighted average number of common shares outstanding - diluted	58,588,452		53,491,625		58,495,921		52,552,662
Net income (loss) per share:
Basic	$	0.06	$	(0.19)	$	0.05	$	(0.45)
Diluted	$	0.05	$	(0.19)	$	0.05	$	(0.45)

Schedule of Outstanding Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share

The following outstanding potentially dilutive common stock equivalents have been excluded from the calculation of diluted net income (loss) per share due to their anti-dilutive effect:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2023	2022	2023	2022
Common stock options	171,526	1,838,562	1,290,179	1,838,562
RSUs	555,468	3,694,930	1,332,500	3,694,930
	726,994	5,533,492	2,622,679	5,533,492

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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounting Policies [Abstract]
Unbilled receivables	$ 1,324,000		$ 1,324,000		$ 1,218,000
Warranty expense	57,000	$ 165,000	411,000	$ 374,000
Equity securities without readily determinable fair value, amount	8,300,000		8,300,000		$ 8,300,000
Impairment loss	$ 600,000	$ 0	$ 600,000	$ 0

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Summary of Significant Accounting Policies - Schedule of Concentration Risk (Details) - Product Concentration Risk - Revenue from Contract with Customer, Product and Service Benchmark	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
ClotTriever and other systems
Revenue from External Customer [Line Items]
Concentration risk	32.00%	31.00%	34.00%	32.00%
FlowTriever system
Revenue from External Customer [Line Items]
Concentration risk	68.00%	69.00%	66.00%	68.00%

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Summary of Significant Accounting Policies - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Disaggregation of Revenue [Line Items]
Revenue	$ 126,366	$ 96,204	$ 361,538	$ 275,700
United States
Disaggregation of Revenue [Line Items]
Revenue	119,825	93,597	345,473	269,584
International
Disaggregation of Revenue [Line Items]
Revenue	$ 6,541	$ 2,607	$ 16,065	$ 6,116

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Summary of Significant Accounting Policies - Schedule of Cash Flow, Supplemental Disclosures (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Supplemental disclosures of cash flow information:
Cash paid for income taxes	$ 3,562	$ 3,085
Cash paid for interest	98	112
Noncash investing and financing:
Lease liabilities arising from obtaining new right-of-use assets	$ 1,030	$ 2,334

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Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets
Total included in short-term investments	$ 307,163	$ 286,508
Fair Value, Recurring
Assets
Total included in cash and cash equivalents	45,050	20,329
Total included in short-term investments	262,113	266,179
Total financial assets	307,163	286,508
Fair Value, Recurring | U.S. Treasury securities
Assets
Total included in short-term investments	173,687	172,088
Fair Value, Recurring | U.S. Government agencies
Assets
Total included in short-term investments	46,284	47,131
Fair Value, Recurring | Corporate debt securities and commercial paper
Assets
Total included in short-term investments	42,142	46,960
Fair Value, Recurring | Money market mutual funds
Assets
Total included in cash and cash equivalents	41,561	20,329
Fair Value, Recurring | Corporate debt securities and commercial paper
Assets
Total included in cash and cash equivalents	3,489
Fair Value, Recurring | Level 1
Assets
Total included in cash and cash equivalents	41,561	20,329
Total included in short-term investments	173,687	172,088
Total financial assets	215,248	192,417
Fair Value, Recurring | Level 1 | U.S. Treasury securities
Assets
Total included in short-term investments	173,687	172,088
Fair Value, Recurring | Level 1 | U.S. Government agencies
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 1 | Corporate debt securities and commercial paper
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 1 | Money market mutual funds
Assets
Total included in cash and cash equivalents	41,561	20,329
Fair Value, Recurring | Level 1 | Corporate debt securities and commercial paper
Assets
Total included in cash and cash equivalents	0
Fair Value, Recurring | Level 2
Assets
Total included in cash and cash equivalents	3,489	0
Total included in short-term investments	88,426	94,091
Total financial assets	91,915	94,091
Fair Value, Recurring | Level 2 | U.S. Treasury securities
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 2 | U.S. Government agencies
Assets
Total included in short-term investments	46,284	47,131
Fair Value, Recurring | Level 2 | Corporate debt securities and commercial paper
Assets
Total included in short-term investments	42,142	46,960
Fair Value, Recurring | Level 2 | Money market mutual funds
Assets
Total included in cash and cash equivalents	0	0
Fair Value, Recurring | Level 2 | Corporate debt securities and commercial paper
Assets
Total included in cash and cash equivalents	3,489
Fair Value, Recurring | Level 3
Assets
Total included in cash and cash equivalents	0	0
Total included in short-term investments	0	0
Total financial assets	0	0
Fair Value, Recurring | Level 3 | U.S. Treasury securities
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 3 | U.S. Government agencies
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 3 | Corporate debt securities and commercial paper
Assets
Total included in short-term investments	0	0
Fair Value, Recurring | Level 3 | Money market mutual funds
Assets
Total included in cash and cash equivalents	0	$ 0
Fair Value, Recurring | Level 3 | Corporate debt securities and commercial paper
Assets
Total included in cash and cash equivalents	$ 0

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Cash Equivalents and Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	$ 307,212	$ 284,688
Unrealized Gain	16	1,871
Unrealized Loss	(65)	(51)
Short-term investments in debt securities	307,163	286,508
Cash and Cash Equivalents
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	45,051	20,329
Unrealized Gain	0	0
Unrealized Loss	(1)	0
Short-term investments in debt securities	45,050	20,329
Cash and Cash Equivalents | Money market mutual funds
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	41,561	20,329
Unrealized Gain	0	0
Unrealized Loss	0	0
Short-term investments in debt securities	41,561	20,329
Cash and Cash Equivalents | Corporate debt securities and commercial paper
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	3,490
Unrealized Gain	0
Unrealized Loss	(1)
Short-term investments in debt securities	3,489
Short-Term Investments
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	262,161	264,359
Unrealized Gain	16	1,871
Unrealized Loss	(64)	(51)
Short-term investments in debt securities	262,113	266,179
Short-Term Investments | U.S. Treasury securities
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	173,690	171,006
Unrealized Gain	9	1,120
Unrealized Loss	(12)	(38)
Short-term investments in debt securities	173,687	172,088
Short-Term Investments | U.S. Government agencies
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	46,309	46,777
Unrealized Gain	7	354
Unrealized Loss	(32)	0
Short-term investments in debt securities	46,284	47,131
Short-Term Investments | Corporate debt securities and commercial paper
Schedule of Investment Income Reported Amounts by Category [Line Items]
Amortized Cost Basis	42,162	46,576
Unrealized Gain	0	397
Unrealized Loss	(20)	(13)
Short-term investments in debt securities	$ 42,142	$ 46,960

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Inventories, net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 14,278	$ 13,943
Work-in-process	4,117	3,396
Finished goods	21,832	15,242
Total inventories, net	$ 40,227	$ 32,581

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Property and Equipment, net - Schedule of Property and Equipment, net (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 33,899	$ 30,483
Accumulated depreciation	(12,656)	(8,828)
Total property and equipment, net	21,243	21,655
Manufacturing equipment
Property Plant And Equipment [Line Items]
Total property and equipment, gross	15,827	13,585
Computer hardware
Property Plant And Equipment [Line Items]
Total property and equipment, gross	5,522	5,123
Leasehold improvements
Property Plant And Equipment [Line Items]
Total property and equipment, gross	5,248	5,040
Furniture and fixtures
Property Plant And Equipment [Line Items]
Total property and equipment, gross	4,380	4,119
Assets in progress
Property Plant And Equipment [Line Items]
Total property and equipment, gross	2,041	2,516
Capitalized software
Property Plant And Equipment [Line Items]
Total property and equipment, gross	881	0
Computer software
Property Plant And Equipment [Line Items]
Total property and equipment, gross	$ 0	$ 100

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Property and Equipment, net - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Property Plant And Equipment [Line Items]
Depreciation expense			$ 4,186	$ 3,430
Operating expenses
Property Plant And Equipment [Line Items]
Depreciation expense	$ 1,141	$ 947	3,367	2,774
Cost of goods sold
Property Plant And Equipment [Line Items]
Depreciation expense	$ 291	$ 223	$ 819	$ 656

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Commitments and Contingencies - Narrative (Details)	1 Months Ended	3 Months Ended		9 Months Ended
	Dec. 31, 2021 USD ($)	Sep. 30, 2023 USD ($) installment	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) installment	Sep. 30, 2022 USD ($)	Oct. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Lessee Lease Description [Line Items]
Operating lease, term of contract		12 months		12 months
Operating lease right-of-use assets		$ 49,065,000		$ 49,065,000			$ 50,703,000
Total lease liabilities		$ 32,257,000		$ 32,257,000			$ 32,300,000
Operating lease, weighted average remaining lease term		18 years 2 months 12 days		18 years 2 months 12 days			17 years 1 month 6 days
Weighted average incremental borrowing rate		6.05%		6.05%
Cash paid for amounts included in the measurement of lease liabilities		$ 866,000	$ 705,000	$ 2,564,000	$ 2,030,000
Contract to perform for others, costs incurred	$ 4,200,000
Contract to perform for others, costs incurred, number of installments | installment		3		3
Accrued expenses and other current liabilities, licensed technology		$ 13,040,000		$ 13,040,000			$ 8,249,000
Administration fee		0	29,000	59,000	87,000
Self insurance liability		2,100,000		2,100,000
Subsequent Event
Lessee Lease Description [Line Items]
Lease not yet commenced, term of contract						10 years
Purchase Option Term | Subsequent Event
Lessee Lease Description [Line Items]
Lease not yet commenced, undiscounted term						3 years
Lease, liability to be paid						$ 7,200,000
Inceptus
Lessee Lease Description [Line Items]
Royalty expense		1,500	$ 1,500	5,000	$ 215,000
Research and development
Lessee Lease Description [Line Items]
Accrued expenses and other current liabilities, licensed technology		$ 0		$ 0			$ 1,300,000
Maximum
Lessee Lease Description [Line Items]
Operating lease, term of contract		5 years		5 years
Maximum | Inceptus
Lessee Lease Description [Line Items]
Related party transaction, rate				1.50%
Minimum | Inceptus
Lessee Lease Description [Line Items]
Related party transaction, rate				1.00%
Royalty quarterly fee				$ 1,500

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Commitments and Contingencies - Schedule of Total Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Operating lease cost	$ 1,137	$ 1,039	$ 3,456	$ 3,139
Short-term lease cost	22	147	85	192
Variable lease cost	402	181	809	477
Total lease costs	$ 1,561	$ 1,367	$ 4,350	$ 3,808

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Commitments and Contingencies - Schedule of Future Minimum Lease Payments Under Operating Leases Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
Remainder of 2023	$ 877
2024	3,546
2025	3,032
2026	2,911
2027	2,978
Thereafter	38,507
Total lease payments	51,851
Less imputed interest	(19,594)
Total lease liabilities	32,257	$ 32,300
Less: lease liabilities - current portion	(1,630)	(1,311)
Lease liabilities - noncurrent portion	$ 30,627	$ 30,976

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Related Party (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Related Party Transaction [Line Items]
Development expenses incurred	$ 67	$ 70	$ 147	$ 262
Accounts payable	10,091		10,091		$ 7,659
Related Party
Related Party Transaction [Line Items]
Accounts payable	$ 0		$ 0		$ 0

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Credit Facility (Details) - Line of Credit		9 Months Ended
	Dec. 16, 2022 USD ($)	Sep. 30, 2023 USD ($) LetterOfCredit	Feb. 28, 2023 USD ($)
Debt Instrument [Line Items]
Number of letter of credit | LetterOfCredit		4
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 40,000,000
Line of credit facility, accordion feature, higher borrowing capacity option	120,000,000
Line of credit facility, remaining borrowing capacity		$ 37,600,000
Line of credit facility, collateral, accounts receivable, percentage		90.00%
Line of credit facility, collateral		$ 10,000,000
Debt instrument, fee amount	$ 10,000
Unused line fee at annual rate	0.25%
Principal amount outstanding		0
Cash pledged under credit agreement		$ 0
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Federal Funds Rate
Debt Instrument [Line Items]
Term loan variable interest rate	0.50%
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Federal Funds Rate | Minimum
Debt Instrument [Line Items]
Term loan variable interest rate	0.50%
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Federal Funds Rate | Maximum
Debt Instrument [Line Items]
Term loan variable interest rate	1.00%
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | BSBY
Debt Instrument [Line Items]
Term loan variable interest rate	1.00%
Basis spread on variable rate, floor	0.00%
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | BSBY | Minimum
Debt Instrument [Line Items]
Term loan variable interest rate	1.50%
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | BSBY | Maximum
Debt Instrument [Line Items]
Term loan variable interest rate	2.00%
Letter of Credit Subline Facility | Bank of America Credit Facility
Debt Instrument [Line Items]
Percentage of fee on average daily stated amount of outstanding letter of credit		2.25%
Percentage of fronting fee on stated amount of each letter of credit outstanding		0.125%
Letters of credit outstanding amount		$ 2,400,000
Letter of Credit Subline Facility | Amended Credit Agreement | Bank of America Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 5,000,000
Line of credit facility, accordion feature, higher borrowing capacity option			$ 10,000,000

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Stockholder's Equity (Details) - USD ($)	1 Months Ended	9 Months Ended
	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Class Of Stock [Line Items]
Net proceeds from IPO	$ 174,400,000	$ 0	$ 174,394,000
Underwriters' discounts and commissions	11,200,000
Offering costs	700,000
Accumulated other comprehensive (loss) income	$ 418,812,000	452,142,000	415,099,000	$ 435,645,000	$ 426,736,000	$ 417,002,000	$ 413,778,000	$ 239,209,000
Reclassification adjustment from AOCI		0	$ 0
Foreign Currency Translation Adjustment
Class Of Stock [Line Items]
Accumulated other comprehensive (loss) income		(1,100,000)				(1,000,000)
Unrealized Gain (Loss) on Investments
Class Of Stock [Line Items]
Accumulated other comprehensive (loss) income		$ (100,000)				$ 1,800,000
IPO
Class Of Stock [Line Items]
Stock issued	2,300,000
Public offering price (in dollars per share)	$ 81.00
Over-allotment Option
Class Of Stock [Line Items]
Sale of stock, shares issued	300,000

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Equity Incentive Plans - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended				3 Months Ended				9 Months Ended		41 Months Ended
	Jan. 01, 2021	Jul. 31, 2023	Jan. 31, 2023	May 31, 2020	Mar. 31, 2020	Sep. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Jan. 01, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance (in shares)													540,217
Shares issued under Employee Stock Purchase Plan (in shares)		118,494	86,051
Compensation cost						$ 9,844		$ 7,356		$ 30,536	$ 21,075
Nonvested award, cost not yet recognized, amount						$ 78,900				$ 78,900		$ 78,900
Nonvested award, cost not yet recognized, period										2 years 8 months 12 days
Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued under Employee Stock Purchase Plan (in shares)						118,494	86,051	78,707	54,808
Restricted Stock Units | Vesting, Option One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period										4 years
Restricted Stock Units | Vesting, Option Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period										3 years
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation cost						$ 700		$ 800		$ 2,900	2,500
Common stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award vesting period										4 years
2020 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of annual increase in shares reserved for issuance on capital stock outstanding at year end					3.00%
Number of shares available for issuance (in shares)						6,523,570				6,523,570		6,523,570
Shares of common stock reserved for future issuance (in shares)						1,620,650				1,620,650		1,620,650
2020 Incentive Award Plan | Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award cliff vesting period										1 year
Total fair value of RSUs vested						$ 6,900		$ 4,500		$ 21,000	$ 15,300
Restricted stock units, vested (in shares)										343,689
2020 Incentive Award Plan | Restricted Stock Units | Vesting, Option One | Share Based Compensation Award Tranche One
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cliff vesting, percentage										25.00%
2020 Incentive Award Plan | Restricted Stock Units | Vesting, Option One | Share-Based Payment Arrangement, Tranche Two
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cliff vesting, percentage										25.00%
2020 Incentive Award Plan | Restricted Stock Units | Vesting, Option One | Share-Based Payment Arrangement, Tranche Three
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cliff vesting, percentage										25.00%
2020 Incentive Award Plan | Restricted Stock Units | Vesting, Option One | Share-Based Payment Arrangement, Tranche Four
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Cliff vesting, percentage										25.00%
2011 Equity Incentive Plan | Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Award cliff vesting period										4 years
Total fair value of RSUs vested										$ 170,600
Restricted stock units, vested (in shares)										2,712,674	0
2020 Employee Share Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved for future issuance (in shares)						2,103,629				2,103,629		2,103,629
Percentage of purchase price on fair market value of common stock				85.00%
Annual increase in number of shares available for issuance percentage	1.00%
2020 Employee Share Purchase Plan | Common Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares issued under Employee Stock Purchase Plan (in shares)												423,109
Maximum | 2020 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Term of award					10 years

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Equity Incentive Plans - Summary of RSU Activity (Details) - Restricted Stock Units - $ / shares	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2022
2011 Equity Incentive Plan
Number of Awards
Balance at beginning of period (in shares)			2,712,674	2,712,674
Vested (in shares)				(2,712,674)	0
Balance at end of period (in shares)	0			0
Weighted Average Fair Value
Balance at beginning of period (in dollars per share)			$ 0.17	$ 0.17
Vested (in dollars per share)	$ 68.33	$ 71.17	$ 64.34
Balance at end of period (in dollars per share)	$ 0			$ 0
2020 Incentive Award Plan
Number of Awards
Balance at beginning of period (in shares)			999,215	999,215
Granted (in shares)				778,398
Vested (in shares)				(343,689)
Cancelled (in shares)				(103,667)
Balance at end of period (in shares)	1,330,257			1,330,257
Weighted Average Fair Value
Balance at beginning of period (in dollars per share)			$ 79.16	$ 79.16
Granted (in dollars per share)				58.56
Vested (in dollars per share)				74.28
Cancelled (in dollars per share)				73.67
Balance at end of period (in dollars per share)	$ 68.79			$ 68.79

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Equity Incentive Plans - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares
2011 Equity Incentive Plan
Number of Awards
Balance at beginning of period (in shares) | shares	1,456,328
Exercised (in shares) | shares	(334,351)
Cancelled (in shares) | shares	(3,324)
Balance at end of period (in shares) | shares	1,118,653	1,456,328
Number of Awards, Vested and exercisable (in shares) | shares	1,091,976
Number of Awards, Vested and expected to vest (in shares) | shares	1,118,415
Weighted Average Exercise Price
Balance at beginning of period (in dollars per share) | $ / shares	$ 1.93
Exercised (in dollars per share) | $ / shares	1.48
Cancelled (in dollars per share) | $ / shares	5.02
Balance at end of period (in dollars per share) | $ / shares	2.06	$ 1.93
Weighted Average Exercise Price, Vested and exercisable (in dollars per share) | $ / shares	1.95
Weighted Average Exercise Price, Vested and expected to vest (in dollars per share) | $ / shares	$ 2.06
Weighted Average Remaining Contractual Life (in years)
Outstanding	5 years 4 months 24 days	6 years 2 months 12 days
Vested and exercisable	5 years 4 months 24 days
Vested and expected to vest	5 years 4 months 24 days
Intrinsic Value
Balance at beginning of period | $	$ 89,749
Exercised | $	20,583
Balance at end of period | $	70,857	$ 89,749
Intrinsic Value, Vested and exercisable | $	69,283
Intrinsic Value, Vested and expected to vest | $	$ 70,843
2020 Incentive Award Plan
Number of Awards
Balance at beginning of period (in shares) | shares	0
Granted (in shares) | shares	181,870
Exercised (in shares) | shares	(916)
Cancelled (in shares) | shares	(9,428)
Balance at end of period (in shares) | shares	171,526	0
Number of Awards, Vested and exercisable (in shares) | shares	21,429
Number of Awards, Vested and expected to vest (in shares) | shares	158,495
Weighted Average Exercise Price
Balance at beginning of period (in dollars per share) | $ / shares	$ 0
Granted (in dollars per share) | $ / shares	56.00
Exercised (in dollars per share) | $ / shares	56.00
Cancelled (in dollars per share) | $ / shares	56.00
Balance at end of period (in dollars per share) | $ / shares	56.00	$ 0
Weighted Average Exercise Price, Vested and exercisable (in dollars per share) | $ / shares	56.00
Weighted Average Exercise Price, Vested and expected to vest (in dollars per share) | $ / shares	$ 56.00
Weighted Average Remaining Contractual Life (in years)
Outstanding	6 years 4 months 24 days
Vested and exercisable	6 years 2 months 12 days
Vested and expected to vest	6 years 4 months 24 days
Intrinsic Value
Balance at beginning of period | $	$ 0
Exercised | $	9
Balance at end of period | $	1,612	$ 0
Intrinsic Value, Vested and exercisable | $	201
Intrinsic Value, Vested and expected to vest | $	$ 1,490

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Equity Incentive Plans - Schedule of Estimated Fair Value of Option Grant and ESPP on Date of Grant (Details) - $ / shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
2020 Incentive Award Plan | Common stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	4 years 6 months 21 days
Expected volatility	50.35%
Dividend yield	0.00%
Risk free interest rate	4.05%
Weighted-average fair value of options granted (in dollars per share)	$ 25.98
2020 Employee Share Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected term	6 months	6 months
Expected volatility - minimum	42.08%	56.09%
Expected volatility - maximum	49.89%	72.78%
Dividend yield	0.00%	0.00%
Risk free interest rate- minimum	4.79%	0.48%
Risk free interest rate - maximum	5.54%	2.96%

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Equity Incentive Plans - Schedule of Total Compensation Cost for All Share-Based Payment Arrangements Recognized (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 9,844	$ 7,356	$ 30,536	$ 21,075
Cost of goods sold
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	393	386	1,232	1,126
Research and development
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	1,587	1,051	4,981	3,143
Selling, general and administrative
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 7,864	$ 5,919	$ 24,323	$ 16,806

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Income Taxes - Schedule of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income (loss) before income taxes	$ 5,590			$ (9,313)			$ 7,420	$ (21,377)
Provision for income taxes	2,428			840			4,391	2,092
Net income (loss)	$ 3,162	$ 2,085	$ (2,218)	$ (10,153)	$ (10,187)	$ (3,129)	$ 3,029	$ (23,469)
Provision for income taxes as a percentage of income (loss) before income taxes	43.40%			(9.00%)			59.20%	(9.80%)

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Income Taxes - Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Income Tax Disclosure [Abstract]
Deferred tax assets, valuation allowance		$ 30,300
Interest or penalties related to uncertain tax positions	$ 0

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Retirement Plan (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Retirement Benefits [Abstract]
Minimum employee service period			1 month
Employer matching contribution, percent of match			100.00%
Maximum participating employee annual contributions			$ 3,000
Participating employee eligible compensation			4.00%
Matching contribution expense recognized	$ 2,000,000	$ 1,700,000	$ 6,900,000	$ 6,200,000

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Net Income (Loss) Per Share - Computation of Net Income per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Numerator:
Net income (loss)	$ 3,162	$ 2,085	$ (2,218)	$ (10,153)	$ (10,187)	$ (3,129)	$ 3,029	$ (23,469)
Denominator:
Weighted average number of common shares outstanding - basic (in shares)	57,384,884			53,491,625			56,478,317	52,552,662
Weighted average number of common shares outstanding - diluted (in shares)	58,588,452			53,491,625			58,495,921	52,552,662
Net income (loss) per share:
Basic (in dollars per share)	$ 0.06			$ (0.19)			$ 0.05	$ (0.45)
Diluted (in dollars per share)	$ 0.05			$ (0.19)			$ 0.05	$ (0.45)
Common stock options
Denominator:
Common stock equivalents (in shares)	1,102,642			0			1,173,190	0
Unvested RSUs
Denominator:
Common stock equivalents (in shares)	94,531			0			832,873	0
ESPP
Denominator:
Common stock equivalents (in shares)	6,395			0			11,541	0

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Net Income (Loss) Per Share - Schedule of Outstanding Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	726,994	5,533,492	2,622,679	5,533,492
Common stock options
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	171,526	1,838,562	1,290,179	1,838,562
RSUs
Antidilutive Securities Excluded From Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares)	555,468	3,694,930	1,332,500	3,694,930

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Subsequent Events (Details) - USD ($)	Nov. 01, 2023	Dec. 16, 2022
Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity		$ 40,000,000
Debt instrument, fee amount		10,000
Letter of Credit Subline Facility | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity		$ 5,000,000
BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate		1.00%
Basis spread on variable rate, floor		0.00%
Maximum | BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate		2.00%
Minimum | BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate		1.50%
Subsequent Event | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity	$ 75,000,000
Debt instrument, fee amount	88,000
Subsequent Event | Letter of Credit Subline Facility | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity	$ 18,800,000
Subsequent Event | BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Basis spread on variable rate, floor	0.00%
Subsequent Event | Maximum | Base Rate | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate	1.10%
Subsequent Event | Maximum | BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate	2.10%
Subsequent Event | Minimum | Base Rate | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate	0.60%
Subsequent Event | Minimum | BSBY | Revolving Line of Credit | Amended Credit Agreement | Bank of America Credit Facility | Line of Credit
Subsequent Event [Line Items]
Term loan variable interest rate	1.60%
Subsequent Event | LimFlow
Subsequent Event [Line Items]
Payments to acquire businesses, gross	$ 250,000,000
Subsequent Event | LimFlow | Maximum
Subsequent Event [Line Items]
Business combination, contingent consideration, liability	$ 165,000,000