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: 001-38957

ADAPTIVE BIOTECHNOLOGIES CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Washington	27-0907024
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1165 Eastlake Avenue East Seattle, Washington	98109
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code: (206) 659-0067

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.0001 per share	ADPT	The NASDAQ Stock Market LLC

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 November 3, 2023, the registrant had 144,772,751 shares of common stock, $0.0001 par value per share, outstanding.

Table of Contents

		Page
PART I.	FINANCIAL INFORMATION	4
Item 1.	Financial Statements (Unaudited)	4
	Condensed Consolidated Balance Sheets	4
	Condensed Consolidated Statements of Operations	5
	Condensed Consolidated Statements of Comprehensive Loss	6
	Condensed Consolidated Statements of Shareholders’ Equity	7
	Condensed Consolidated Statements of Cash Flows	9
	Notes to Unaudited Condensed Consolidated Financial Statements	10
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	34
Item 4.	Controls and Procedures	34
PART II.	OTHER INFORMATION	35
Item 1.	Legal Proceedings	35
Item 1A.	Risk Factors	35
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	35
Item 3.	Defaults Upon Senior Securities	35
Item 4.	Mine Safety Disclosures	35
Item 5.	Other Information	35
Item 6.	Exhibits	36
Signatures		37

Adaptive Biotechnologies Corporation

FORWARD-LOOKING STATEMENTS

This report contains forward-looking statements that are based on management’s beliefs and assumptions and on information currently available to management. All statements contained in this report other than statements of historical fact are forward-looking statements, which include but are not limited to, statements about:

•our ability to leverage and extend our immune medicine platform to discover, develop and commercialize our products and services, including further commercialization and development of products and services related to our Immune Medicine and Minimal Residual Disease (“MRD”) market opportunities, particularly in light of the novelty of immune medicine and our methods;

•our ability to achieve and maintain commercial market acceptance of our current products and services, such as clonoSEQ and immune sequencing, as well as our ability to achieve market acceptance for any additional products and services beyond our current portfolio, if developed;

•our collaboration with Genentech, Inc. (“Genentech”) and our ability to develop and commercialize cellular therapeutics, including our ability to achieve milestones and realize the intended benefits of the collaboration;

•our ability to realize payments, such as milestone fees, based on our customers' use of our technologies in connection with their achievement of research or regulatory goals relating to their own products;

•our ability to develop a comprehensive map of the interaction between the immune system and disease (the “TCR-Antigen Map”) and yield insights from it that are commercially viable; and

•our expected reliance on collaborators and other third parties for development, clinical testing and regulatory approval of current products in new indications and potential product candidates, which may fail at any time due to a number of possible unforeseen events.

The forward-looking statements in this report also include statements regarding our ability to develop, commercialize and achieve market acceptance of our current and planned products and services, our research and development efforts and other matters regarding our business strategies, use of capital, results of operations and financial position and plans and objectives for future operations. In some cases, you can identify forward-looking statements by the words “may,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “project,” “potential,” “continue,” “ongoing” or the negative of these terms or other comparable terminology, although not all forward-looking statements contain these words. These statements involve risks, uncertainties and other factors that may cause actual results, levels of activity, performance or achievements to be materially different from the information expressed or implied by these forward-looking statements. These risks, uncertainties and other factors are described under “Risk Factors,” “Management's Discussion and Analysis of Financial Condition and Results of Operations” and elsewhere in this report and in other documents we file with the Securities and Exchange Commission (the “SEC”) from time to time. We caution you that forward-looking statements are based on a combination of facts and factors currently known by us and our projections of the future, about which we cannot be certain. As a result, the forward-looking statements may not prove to be accurate. The forward-looking statements in this report represent our views as of the date of this report.

We undertake no obligation to update any forward-looking statements for any reason, except as required by law.

Unless otherwise stated or the context otherwise indicates, references to “we,” “us,” “our” and similar references refer to Adaptive Biotechnologies Corporation.

3

Adaptive Biotechnologies Corporation

PART I—FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

Condensed Consolidated Balance Sheets

(in thousands, except share and per share amounts)

	September 30, 2023			December 31, 2022
	(unaudited)
Assets
Current assets
Cash and cash equivalents	$	88,713		$	90,030
Short-term marketable securities (amortized cost of $282,669 and $412,282, respectively)		282,419			408,166
Accounts receivable, net		31,211			40,057
Inventory		19,490			14,453
Prepaid expenses and other current assets		13,404			9,440
Total current assets		435,237			562,146
Long-term assets
Property and equipment, net		76,749			83,447
Operating lease right-of-use assets		75,263			80,763
Restricted cash		2,921			2,398
Intangible assets, net		5,557			6,827
Goodwill		118,972			118,972
Other assets		2,983			2,064
Total assets	$	717,682		$	856,617
Liabilities and shareholders’ equity
Current liabilities
Accounts payable	$	4,483		$	8,084
Accrued liabilities		10,151			12,424
Accrued compensation and benefits		10,648			15,935
Current portion of operating lease liabilities		9,482			9,230
Current portion of deferred revenue		55,340			64,115
Current portion of revenue interest liability, net		3,194			—
Total current liabilities		93,298			109,788
Long-term liabilities
Operating lease liabilities, less current portion		91,824			98,772
Deferred revenue, less current portion		44,194			58,599
Revenue interest liability, net, less current portion		126,729			125,360
Total liabilities		356,045			392,519
Commitments and contingencies (Note 9)
Shareholders’ equity
Preferred stock: $0.0001 par value, 10,000,000 shares authorized at September 30, 2023 and December 31, 2022; no shares issued and outstanding at September 30, 2023 and December 31, 2022		—			—
Common stock: $0.0001 par value, 340,000,000 shares authorized at September 30, 2023 and December 31, 2022; 144,772,751 and 143,105,002 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively		14			14
Additional paid-in capital		1,436,859			1,387,349
Accumulated other comprehensive loss		(250	)		(4,116	)
Accumulated deficit		(1,074,891	)		(919,082	)
Total Adaptive Biotechnologies Corporation shareholders’ equity		361,732			464,165
Noncontrolling interest		(95	)		(67	)
Total shareholders’ equity		361,637			464,098
Total liabilities and shareholders’ equity	$	717,682		$	856,617

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

4

Adaptive Biotechnologies Corporation

Condensed Consolidated Statements of Operations

(in thousands, except share and per share amounts)

(unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Revenue	$	37,919		$	47,830		$	124,492		$	130,110
Operating expenses
Cost of revenue		19,346			14,907			55,937			41,320
Research and development		28,533			35,658			93,371			110,534
Sales and marketing		20,493			21,513			66,673			71,887
General and administrative		20,075			20,755			63,208			66,099
Amortization of intangible assets		428			428			1,270			1,270
Total operating expenses		88,875			93,261			280,459			291,110
Loss from operations		(50,956	)		(45,431	)		(155,967	)		(161,000	)
Interest and other income, net		4,282			765			10,918			1,454
Interest expense		(3,652	)		(653	)		(10,788	)		(653	)
Net loss		(50,326	)		(45,319	)		(155,837	)		(160,199	)
Add: Net loss attributable to noncontrolling interest		26			38			28			136
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted	$	(0.35	)	$	(0.32	)	$	(1.08	)	$	(1.12	)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted		144,704,868			142,928,654			144,208,940			142,334,342

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

5

Adaptive Biotechnologies Corporation

Condensed Consolidated Statements of Comprehensive Loss

(in thousands)

(unaudited)

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss	$	(50,326	)	$	(45,319	)	$	(155,837	)	$	(160,199	)
Other comprehensive income (loss)
Change in unrealized gains and losses on investments		643			(171	)		3,866			(4,834	)
Comprehensive loss		(49,683	)		(45,490	)		(151,971	)		(165,033	)
Add: Comprehensive loss attributable to noncontrolling interest		26			38			28			136
Comprehensive loss attributable to Adaptive Biotechnologies Corporation	$	(49,657	)	$	(45,452	)	$	(151,943	)	$	(164,897	)

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

6

Adaptive Biotechnologies Corporation

Condensed Consolidated Statements of Shareholders’ Equity

(in thousands, except share amounts)

(unaudited)

	Common Stock				Additional		Accumulated Other			Accumulated			Noncontrolling			Total
	Shares		Amount		Paid-In Capital		Comprehensive Loss			Deficit			Interest			Shareholders’ Equity
Balance at June 30, 2022		142,784,868	$	14	$	1,357,763	$	(5,800	)	$	(833,673	)	$	12		$	518,316
Issuance of common stock for cash upon exercise of stock options		131,802		—		846		—			—			—			846
Vesting of restricted stock units		70,457		—		—		—			—			—			—
Share-based compensation expense		—		—		14,142		—			—			—			14,142
Other comprehensive loss		—		—		—		(171	)		—			—			(171	)
Net loss		—		—		—		—			(45,281	)		(38	)		(45,319	)
Balance at September 30, 2022		142,987,127	$	14	$	1,372,751	$	(5,971	)	$	(878,954	)	$	(26	)	$	487,814
Balance at June 30, 2023		144,645,118	$	14	$	1,421,506	$	(893	)	$	(1,024,591	)	$	(69	)	$	395,967
Issuance of common stock for cash upon exercise of stock options		20,000		—		17		—			—			—			17
Vesting of restricted stock units		107,633		—		—		—			—			—			—
Share-based compensation expense		—		—		15,336		—			—			—			15,336
Other comprehensive income		—		—		—		643			—			—			643
Net loss		—		—		—		—			(50,300	)		(26	)		(50,326	)
Balance at September 30, 2023		144,772,751	$	14	$	1,436,859	$	(250	)	$	(1,074,891	)	$	(95	)	$	361,637

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

7

Adaptive Biotechnologies Corporation

Condensed Consolidated Statements of Shareholders’ Equity (Continued)

(in thousands, except share amounts)

(unaudited)

	Common Stock				Additional		Accumulated Other			Accumulated			Noncontrolling			Total
	Shares		Amount		Paid-In Capital		Comprehensive Loss			Deficit			Interest			Shareholders’ Equity
Balance at December 31, 2021		141,393,865	$	14	$	1,324,006	$	(1,137	)	$	(718,891	)	$	110		$	604,102
Issuance of common stock for cash upon exercise of stock options		1,361,891		—		7,562		—			—			—			7,562
Vesting of restricted stock units		231,371		—		—		—			—			—			—
Share-based compensation expense		—		—		41,183		—			—			—			41,183
Other comprehensive loss		—		—		—		(4,834	)		—			—			(4,834	)
Net loss		—		—		—		—			(160,063	)		(136	)		(160,199	)
Balance at September 30, 2022		142,987,127	$	14	$	1,372,751	$	(5,971	)	$	(878,954	)	$	(26	)	$	487,814
Balance at December 31, 2022		143,105,002	$	14	$	1,387,349	$	(4,116	)	$	(919,082	)	$	(67	)	$	464,098
Issuance of common stock for cash upon exercise of stock options		367,405		—		2,158		—			—			—			2,158
Vesting of restricted stock units		1,300,344		—		—		—			—			—			—
Share-based compensation expense		—		—		47,352		—			—			—			47,352
Other comprehensive income		—		—		—		3,866			—			—			3,866
Net loss		—		—		—		—			(155,809	)		(28	)		(155,837	)
Balance at September 30, 2023		144,772,751	$	14	$	1,436,859	$	(250	)	$	(1,074,891	)	$	(95	)	$	361,637

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

8

Adaptive Biotechnologies Corporation

Condensed Consolidated Statements of Cash Flows

(in thousands)

(unaudited)

	Nine Months Ended September 30,
	2023			2022
Operating activities
Net loss	$	(155,837	)	$	(160,199	)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense		15,569			14,364
Noncash lease expense		5,491			5,423
Share-based compensation expense		47,352			41,183
Intangible assets amortization		1,270			1,270
Investment amortization		(6,225	)		1,825
Inventory reserve		931			2,638
Noncash interest expense		4,563			653
Other		165			(20	)
Changes in operating assets and liabilities
Accounts receivable, net		8,798			(9,139	)
Inventory		(6,815	)		(2,212	)
Prepaid expenses and other current assets		(3,964	)		601
Accounts payable and accrued liabilities		(10,746	)		(3,419	)
Operating lease right-of-use assets and liabilities		(6,688	)		(3,041	)
Deferred revenue		(23,180	)		(44,018	)
Other		(76	)		165
Net cash used in operating activities		(129,392	)		(153,926	)
Investing activities
Purchases of property and equipment		(9,399	)		(13,807	)
Purchases of marketable securities		(307,563	)		(113,744	)
Proceeds from maturities of marketable securities		443,402			228,000
Net cash provided by investing activities		126,440			100,449
Financing activities
Proceeds from exercise of stock options		2,158			7,568
Proceeds from revenue interest purchase agreement, net of issuance costs		—			124,691
Net cash provided by financing activities		2,158			132,259
Net (decrease) increase in cash, cash equivalents and restricted cash		(794	)		78,782
Cash, cash equivalents and restricted cash at beginning of year		92,428			141,203
Cash, cash equivalents and restricted cash at end of period	$	91,634		$	219,985
Noncash investing and financing activities
Purchases of equipment included in accounts payable and accrued liabilities	$	1,308		$	2,619
Revenue interest purchase agreement issuance costs included in accounts payable and accrued liabilities	$	—		$	316
Supplemental disclosure of cash flow information
Cash paid for interest	$	7,089		$	—

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

9

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements

(unaudited)

1. Organization and Description of Business

Adaptive Biotechnologies Corporation (“we,” “us” or “our”) is a commercial-stage company advancing the field of immune medicine by harnessing the inherent biology of the adaptive immune system to transform the diagnosis and treatment of disease. We believe the adaptive immune system is nature’s most finely tuned diagnostic and therapeutic for most diseases, but the inability to decode it has prevented the medical community from fully leveraging its capabilities. Our immune medicine platform applies our proprietary technologies to read the diverse genetic code of a patient’s immune system and aims to understand precisely how the immune system detects and treats disease in that patient. We capture these insights in our dynamic clinical immunomics database, which is underpinned by computational biology and machine learning, and use them to develop and commercialize clinical products and services that we are tailoring to each individual patient. We have commercial products and services and a robust pipeline of clinical products and services that we are designing to diagnose, monitor and enable the treatment of diseases, such as cancer and autoimmune disorders.

We were incorporated in the State of Washington on September 8, 2009 under the name Adaptive TCR Corporation. On December 21, 2011, we changed our name to Adaptive Biotechnologies Corporation. We are headquartered in Seattle, Washington.

2. Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of Adaptive Biotechnologies Corporation, Adaptive Biotechnologies B.V., our wholly-owned subsidiary, and Digital Biotechnologies, Inc., a corporate subsidiary we have 70% ownership interest in. The remaining interest in Digital Biotechnologies, Inc., held by certain of our related parties and their related family trusts, are shown in the unaudited condensed consolidated financial statements as noncontrolling interest. All intercompany transactions and balances have been eliminated upon consolidation.

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the condensed consolidated financial statements, as well as the reported amounts of revenues and expenses during the periods presented. We base our estimates on historical experience and other relevant assumptions that we believe to be reasonable under the circumstances. Estimates are used in several areas including, but not limited to, estimates of progress to date for certain performance obligations and the transaction price for certain contracts with customers, share-based compensation, imputing interest for our revenue interest purchase agreement (the “Purchase Agreement”) that we entered into in September 2022, the provision for income taxes, including related reserves, and the analysis of goodwill impairment, among others. These estimates generally involve complex issues and require judgments, involve the analysis of historical results and prediction of future trends, can require extended periods of time to resolve and are subject to change from period to period. Actual results may differ materially from management’s estimates.

Unaudited Interim Condensed Consolidated Financial Statements

In our opinion, the accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information. These unaudited condensed consolidated financial statements include all adjustments necessary to fairly state our financial position and the results of our operations and cash flows for interim periods in accordance with GAAP. All such adjustments were of a normal, recurring nature. Interim-period results are not necessarily indicative of results of operations or cash flows for a full year or any subsequent interim period.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission (the “SEC”) on February 14, 2023.

Restricted Cash

We had a restricted cash balance of $2.9 million and $2.4 million as of September 30, 2023 and December 31, 2022, respectively. Our restricted cash primarily relates to certain balances we are required to maintain under lease arrangements for some of our property and facility leases.

10

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Concentrations of Risk

We are subject to a concentration of risk from a limited number of suppliers, or in certain cases, single suppliers, for some of our laboratory instruments and materials. This risk is managed by targeting a quantity of surplus stock.

Cash, cash equivalents and marketable securities are financial instruments that potentially subject us to concentrations of credit risk. We invest in money market funds, United States (“U.S.”) government treasury and agency securities, corporate bonds and commercial paper with high-quality accredited financial institutions.

Significant customers are those that represent more than ten percent of our total revenue or accounts receivable, net balances for the periods and as of each condensed consolidated balance sheet date presented, respectively.

For each significant customer, revenue as a percentage of total revenue for the periods presented and accounts receivable, net as a percentage of total accounts receivable, net as of the dates presented were as follows:

	Revenue				Accounts Receivable, Net
	Three Months Ended September 30,		Nine Months Ended September 30,		September 30,	December 31,
	2023	2022	2023	2022	2023	2022
Customer A	*%	*%	*%	*%	*%	15.8%
Customer B	*	*	*	13.0	*	19.5
Customer C	*	*	*	*	10.1	*
Genentech, Inc. and Roche Group	23.2	45.1	30.0	38.2	*	*
* less than 10%

Revenue Recognition

For all revenue-generating contracts, we perform the following steps to determine the amount of revenue to be recognized: (1) identify the contract or contracts; (2) determine whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (3) measure the transaction price, including the constraint on variable consideration; (4) allocate the transaction price to the performance obligations based on estimated selling prices; and (5) recognize revenue when (or as) we satisfy each performance obligation.

We derive revenue by providing diagnostic and research services in our Immune Medicine and Minimal Residual Disease (“MRD”) market opportunities. Our Immune Medicine revenue consists of revenue generated from (1) providing sample testing services for our commercial research product, immunoSEQ, to biopharmaceutical customers and academic institutions; (2) our collaboration agreements with Genentech, Inc. (“Genentech”) and other biopharmaceutical customers in areas of drug and target discovery; and (3) providing our T-Detect COVID tests to clinical customers. Our MRD revenue consists of revenue generated from (1) providing our clonoSEQ report to clinical customers; (2) providing MRD sample testing services to biopharmaceutical customers and certain academic institutions, including investigator-led clinical trials; and (3) providing our clonoSEQ report or results to certain international laboratory sites through technology transfers.

For research customers who utilize either immunoSEQ or our MRD services, contracts typically include an amount billed in advance of services (“upfront”) and subsequent billings as sample results are delivered to the customer. Upfront amounts received are recorded as deferred revenue, which we recognize as revenue upon satisfaction of performance obligations. We have identified two typical performance obligations under the terms of our research service contracts: (1) the delivery of our immunoSEQ or MRD data for customer provided samples; and (2) related data analysis. We recognize revenue for both identified performance obligations as sample results are delivered to the customer. In periods where our sample estimates are reduced or a customer project is cancelled and, in either case, we have remaining related deferred revenue, we recognize revenue using a cumulative catch-up approach based on the proportion of samples delivered to date relative to the remaining samples expected to be delivered.

For agreements where we provide our clonoSEQ report to ordering physicians, we have identified one performance obligation: the delivery of a clonoSEQ report. We bill and receive payments for these transactions from commercial, government and medical institution payors. As payment from the respective payors may vary based on the various reimbursement rates and patient responsibilities, we consider the transaction price to be variable and record an estimate of the transaction price, subject to the constraint for variable consideration, as revenue at the time of delivery. The estimate of transaction price is based on historical and expected reimbursement rates with the various payors, which are monitored in subsequent periods and adjusted, as necessary, based on actual collection experience.

11

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Regarding our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test report. This billing contemplates all necessary tests required during a patient’s treatment cycle, which is currently estimated at approximately four tests per patient, including the initial sequence identification test. Revenue recognition commences at the time the initial billable test report is delivered and is based upon cumulative tests delivered to date. We estimate the number of tests we expect to deliver over a patient’s treatment cycle based on historical testing frequencies for patients by indication. These estimates are subject to change as we develop more information about utilization over time. Any unrecognized revenue from the initial billable test is recorded as deferred revenue and is recognized either as we deliver our estimate of the remaining tests in a patient’s treatment cycle or when the likelihood becomes remote that a patient will receive additional testing.

The contract transaction price for agreements we enter into with biopharmaceutical customers to further develop and commercialize their therapeutics may consist of a combination of non-refundable upfront fees, separately priced MRD testing fees and milestone fees earned upon our customers’ achievement of certain regulatory approvals. Depending on the contract, these agreements include single or multiple performance obligations. Such performance obligations include providing services to support our customers’ therapeutic development efforts, including regulatory support for our technology intended to be utilized as part of our customers’ registrational trials, developing analytical plans for our data, participating on joint research committees, assisting in completing a regulatory submission and providing MRD testing services related to customer-provided samples for our customers' regulatory submissions. Generally, the support services, excluding MRD testing services, are not distinct within the context of the contract and thus are accounted for as a single performance obligation. The transaction price allocated to the respective performance obligations is estimated using an adjusted market assessment approach for the regulatory support services and a standalone selling price for the estimated MRD testing services. When MRD sample testing services are separately priced customer options, we assess if a material right exists and, if not, the customer option to purchase additional MRD sample testing services is not considered part of the contract. We recognize revenue related to MRD testing services over time using an output method based on the proportion of sample results delivered relative to the total amount of sample results expected to be delivered, when expected to be a faithful depiction of progress. We use the same method to recognize the regulatory support services. When an output method based on the proportion of sample results delivered is not expected to be a faithful depiction of progress, we utilize an input method using a cost-based model based on estimates of effort completed. Selecting the measure of progress and estimating progress to date requires significant judgment. Except for any non-refundable upfront fees, the other forms of compensation represent variable consideration. At contract inception, we fully constrain any consideration related to regulatory milestones, as the achievement of such milestones is subject to third-party regulatory approval and the customers’ own submission decision-making. Variable consideration related to regulatory milestones is estimated using the most likely amount method, where variable consideration is constrained until it is probable that a significant reversal of cumulative revenue will not occur. Milestone payments for regulatory approvals, which are not within our customers’ control, are not considered probable of being achieved until those approvals are received. Determining whether regulatory milestone payments are probable is an area that requires significant judgment. In making this assessment, we evaluate scientific, clinical, regulatory and other risks, as well as the level of effort and investment required to achieve the respective milestone.

3. Revenue

We disaggregate our revenue from contracts with customers by market opportunity and type of arrangement, as we believe this best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors.

The following table presents our disaggregated revenue for the periods presented (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Immune Medicine revenue
Service revenue	$	5,238	$	6,559	$	17,848	$	20,968
Collaboration revenue		8,013		21,320		34,667		50,105
Total Immune Medicine revenue		13,251		27,879		52,515		71,073
MRD revenue
Service revenue		24,668		19,951		71,977		55,037
Regulatory milestone revenue		—		—		—		4,000
Total MRD revenue		24,668		19,951		71,977		59,037
Total revenue	$	37,919	$	47,830	$	124,492	$	130,110

12

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

During the three months ended September 30, 2023, we recognized $1.9 million in MRD service revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote and from cancelled customer contracts. During the three months ended September 30, 2022, we recognized $1.1 million in MRD service revenue related to cancelled customer contracts, Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote and changes in estimates of total samples to be provided under certain of our agreements.

During the nine months ended September 30, 2023, we recognized $4.6 million in revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote, cancelled customer contracts and changes in estimates of total samples to be provided under certain of our agreements, $0.4 million of which was recognized as Immune Medicine service revenue and $4.2 million of which was recognized as MRD service revenue. During the nine months ended September 30, 2022, we recognized $4.0 million in revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote, cancelled customer contracts and changes in estimates of total samples to be provided under certain of our agreements, $0.3 million of which was recognized as Immune Medicine service revenue and $3.7 million of which was recognized as MRD service revenue.

As of September 30, 2023, we could receive up to an additional $399.5 million in milestone payments in future periods if certain regulatory approvals are obtained by our customers’ therapeutics in connection with MRD data generated from our MRD product.

Genentech Collaboration Agreement

In December 2018, we entered into a worldwide collaboration and license agreement with Genentech (the “Genentech Agreement”) to leverage our capability to develop cellular therapies in oncology. Subsequent to receipt of regulatory approval in January 2019, we received a non-refundable, upfront payment of $300.0 million in February 2019 and may be eligible to receive more than $1.8 billion over time, including payments of up to $75.0 million upon the achievement of specified regulatory milestones ($10.0 million of which was achieved in May 2023), up to $300.0 million upon the achievement of specified development milestones and up to $1,430.0 million upon the achievement of specified commercial milestones. In addition, we are separately able to receive tiered royalties at a rate ranging from the mid-single digits to the mid-teens on aggregate worldwide net sales of products arising from the strategic collaboration, subject to certain reductions, with aggregate minimum floors. Under the Genentech Agreement, we are pursuing two product development pathways for novel T cell immunotherapies in which Genentech intends to use T cell receptors (“TCRs”) screened by our immune medicine platform to engineer and manufacture cellular medicines:

•Shared Products. The shared products will use “off-the-shelf” TCRs identified against cancer antigens shared among patients (“Shared Products”).

•Personalized Product. The personalized product will use patient-specific TCRs identified by real-time screening of TCRs against cancer antigens in each patient (“Personalized Product”).

Under the terms of the Genentech Agreement, we granted Genentech exclusive worldwide licenses to develop and commercialize TCR-based cellular therapies in the field of oncology, including licenses to existing shared antigen data packages. Additionally, Genentech has the right to determine which product candidates to further develop for commercialization purposes. We determined that this arrangement meets the criteria set forth in Accounting Standards Codification (“ASC”) Topic 808, Collaborative Arrangements (“ASC 808”), because both parties are active participants in the activity and are exposed to significant risks and rewards depending on the activity’s commercial failure or success. Because ASC 808 does not provide guidance on how to account for the activities under a collaborative arrangement, we applied the guidance in ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”) to account for the activities related to the Genentech Agreement.

In applying ASC 606, we identified the following performance obligations at the inception of the agreement:

1.License to utilize on an exclusive basis all TCR-specific platform intellectual property to develop and commercialize any licensed products in the field of oncology.

2.License to utilize all data and information within each shared antigen data package and any other know-how disclosed by us to Genentech in oncology.

3.License to utilize all private antigen TCR product data in connection with research and development activities in the field of use.

4.License to existing shared antigen data packages.

5.Research and development services for Shared Products development, including expansion of shared antigen data packages.

6.Research and development services for private product development.

7.Obligations to participate on various joint research, development and project committees.

13

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

We determined that none of the licenses, research and development services or obligations to participate on various committees were distinct within the context of the contract, given such rights and activities were highly interrelated and there was substantial additional research and development to further develop the licenses. We considered factors such as the stage of development of the respective existing antigen data packages, the subsequent development that would be required to both identify and submit a potential target for investigational new drug acceptance under both product pathways and the variability in research and development pathways given Genentech’s control of product commercialization. Specifically, under the Genentech Agreement, Genentech is not required to pursue development or commercialization activities pertaining to both product pathways and may choose to proceed with one or the other. Accordingly, we determined that all of the identified performance obligations were attributable to one general performance obligation, which is to further the development of our TCR-specific platform, including data packages, and continue to make our TCR identification process available to Genentech to pursue either product pathway.

Separately, we have a responsibility to Genentech to enter into a supply and manufacturing agreement for patient-specific TCRs as it pertains to any Personalized Product therapeutic. We determined this was an option right of Genentech should they pursue commercialization of a Personalized Product therapy. Because of the uncertainty resulting from the early stage of development, the novel approach of our collaboration with Genentech and our rights to future commercial milestones and royalty payments, we determined that this option right was not a material right that should be accounted for at inception. As such, we will account for the supply and manufacturing agreement when entered into between the parties.

We determined the initial transaction price shall be made up of only the $300.0 million upfront, non-refundable payment, as all potential regulatory and development milestone payments were probable of significant revenue reversal given their achievement was highly dependent on factors outside our control. As a result, these payments were fully constrained and were not included in the initial transaction price. In May 2023, one of the regulatory milestones was achieved, resulting in a $10.0 million addition to the transaction price, $7.7 million of which was recognized as revenue in the three months ended June 30, 2023, with the remainder included in deferred revenue to be recognized as revenue over the remaining research and development period. We continue to exclude the commercial milestones and potential royalties from the transaction price, as those items relate predominantly to the license rights granted to Genentech and will be assessed when and if such events occur.

As there are potential substantive developments necessary, which Genentech may be able to direct, we determined that we would apply a proportional performance model to recognize revenue for our performance obligation. We measure proportional performance using an input method based on costs incurred relative to the total estimated costs of research and development efforts to pursue both the Shared Products and Personalized Product pathways. When any of the potential regulatory and development milestones are no longer fully constrained and are included in the transaction price, such amounts will be recognized using the cumulative catch-up method based on proportional performance at such time. We currently expect to recognize revenue generated from the Genentech Agreement over a period of approximately eight to nine years from the effective date. This estimate of the research and development period considers pursuit options of development activities supporting both the Shared Products and Personalized Product, but may be reduced or increased based on the various activities as directed by the joint committees, decisions made by Genentech, regulatory feedback or other factors not currently known.

In total, we recognized $8.0 million and $20.4 million in Immune Medicine collaboration revenue during the three months ended September 30, 2023 and 2022, respectively, and $34.7 million and $46.5 million in Immune Medicine collaboration revenue during the nine months ended September 30, 2023 and 2022, respectively, related to the Genentech Agreement. Costs related to the Genentech Agreement are included in research and development expenses.

4. Deferred Revenue

Deferred revenue from the Genentech Agreement represents $21.2 million and $41.4 million of the current and non-current deferred revenue balances, respectively, as of September 30, 2023 and $31.8 million and $55.5 million of the current and non-current deferred revenue balances, respectively, as of December 31, 2022. We expect our current deferred revenue to be recognized as revenue within 12 months. We expect the majority of our non-current deferred revenue to be recognized as revenue over a period of approximately four years from September 30, 2023. This period of time represents an estimate of the research and development period to develop cellular therapies in oncology, which may be reduced or increased based on various research and development activities.

Changes in deferred revenue during the nine months ended September 30, 2023 were as follows (in thousands):

Deferred revenue balance at December 31, 2022	$	122,714
Additions to deferred revenue during the period		30,693
Revenue recognized during the period		(53,873	)
Deferred revenue balance at September 30, 2023	$	99,534

14

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

As of September 30, 2023, $41.2 million was recognized as revenue that was included in the deferred revenue balance at December 31, 2022.

5. Fair Value Measurements

The following tables set forth the fair values of financial assets as of September 30, 2023 and December 31, 2022 that were measured at fair value on a recurring basis (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	63,981	$	—	$	—	$	63,981
Commercial paper		—		2,871		—		2,871
U.S. government treasury and agency securities		—		273,311		—		273,311
Corporate bonds		—		6,237		—		6,237
Total financial assets	$	63,981	$	282,419	$	—	$	346,400

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	38,502	$	—	$	—	$	38,502
Commercial paper		—		9,969		—		9,969
U.S. government treasury securities		—		385,848		—		385,848
Corporate bonds		—		12,349		—		12,349
Total financial assets	$	38,502	$	408,166	$	—	$	446,668

Level 1 securities include highly liquid money market funds, for which we measure the fair value based on quoted prices in active markets for identical assets or liabilities. Level 2 securities consist of U.S. government treasury and agency securities, corporate bonds and commercial paper, and are valued based on recent trades of securities in inactive markets or on quoted market prices of similar instruments and other significant inputs derived from or corroborated by observable market data.

6. Investments

Available-for-sale investments consisted of the following as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	2,871	$	—	$	—		$	2,871
U.S. government treasury and agency securities		273,561		1		(251	)		273,311
Corporate bonds		6,237		—		—			6,237
Total short-term marketable securities	$	282,669	$	1	$	(251	)	$	282,419

	December 31, 2022
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	9,969	$	—	$	—		$	9,969
U.S. government treasury securities		389,898		14		(4,064	)		385,848
Corporate bonds		12,415		—		(66	)		12,349
Total short-term marketable securities	$	412,282	$	14	$	(4,130	)	$	408,166

All the U.S. government treasury and agency securities, corporate bonds and commercial paper designated as short-term marketable securities have an effective maturity date that is equal to or less than one year from the respective condensed consolidated balance sheet date. Those that are designated as long-term marketable securities have an effective maturity date that is more than one year from the respective condensed consolidated balance sheet date.

15

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Accrued interest receivable is excluded from the amortized cost and estimated fair value of our marketable securities. Accrued interest receivable of $1.1 million and $0.8 million was presented separately within the prepaid expenses and other current assets balance on the unaudited condensed consolidated balance sheet as of September 30, 2023 and on the condensed consolidated balance sheet as of December 31, 2022, respectively.

The following table presents the gross unrealized holding losses and fair values for investments in an unrealized loss position, and the length of time individual securities have been in a continuous loss position, as of September 30, 2023 (in thousands):

	Less Than 12 Months					12 Months Or Greater
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. government treasury and agency securities	$	222,795	$	(169	)	$	19,957	$	(82	)
Total available-for-sale securities	$	222,795	$	(169	)	$	19,957	$	(82	)

We periodically review our available-for-sale securities to assess for credit impairment. Some of the factors considered in assessing impairment include the extent to which the fair value is less than the amortized cost basis, adverse conditions related to the security, an industry or geographic area, changes to security ratings or sector credit ratings and other relevant market data.

As of September 30, 2023, we did not intend, nor were we more likely than not to be required, to sell our available-for-sale investments before the recovery of their amortized cost basis, which may be maturity. Based on our assessment, we concluded all impairment as of September 30, 2023 to be due to factors other than credit loss, such as changes in interest rates. A credit allowance was not recognized and the impairment of our available-for-sale securities was recorded in other comprehensive loss.

7. Leases

We have operating lease agreements for laboratory, office and warehouse facilities in Seattle, Washington, Bothell, Washington, South San Francisco, California and New York City, New York. As of September 30, 2023, we were not party to any finance leases.

The following table reconciles our undiscounted operating lease cash flows to our operating lease liabilities, less current portion balance as of September 30, 2023 (in thousands):

2023 (excluding the nine months ended September 30, 2023)	$	3,678
2024		13,692
2025		14,098
2026		12,330
2027		11,944
Thereafter		69,244
Total undiscounted lease payments		124,986
Less: Imputed interest rate		(23,680	)
Total operating lease liabilities		101,306
Less: Current portion		(9,482	)
Operating lease liabilities, less current portion	$	91,824

During the nine months ended September 30, 2023, cash paid for amounts included in the measurement of lease liabilities was $10.3 million. During the nine months ended September 30, 2022, cash paid for amounts included in the measurement of lease liabilities was $6.9 million, net of $4.0 million of cash received for tenant improvement allowances.

We have $2.1 million in letters of credit with one of our financial institutions in connection with certain of our leases.

8. Revenue Interest Purchase Agreement

In September 2022, we entered into the Purchase Agreement with OrbiMed Royalty & Credit Opportunities IV, LP (“OrbiMed”), an affiliate of OrbiMed Advisors LLC, as collateral agent and administrative agent for the purchasers party thereto (the “Purchasers”). Pursuant to the Purchase Agreement, we received $125.0 million from the Purchasers at closing, less certain transaction expenses. We are also entitled to receive up to $125.0 million in subsequent installments as follows: (i) $75.0 million upon our request occurring no later than September 12, 2025 and (ii) $50.0 million upon our request in connection with certain permitted acquisitions occurring no later than September 12, 2025, in each case subject to certain funding conditions.

16

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

As consideration for such payments, the Purchasers have a right to receive certain revenue interests (the “Revenue Interests”) from us based on a percentage of all GAAP revenue. Payments in respect of the Revenue Interests shall be made quarterly within 45 days following the end of each fiscal quarter (each, a “Revenue Interest Payment”).

Accounting Treatment

We accounted for the transaction as debt recorded at amortized cost using the effective interest rate method.

To determine the amortization of the Purchase Agreement obligation, we are required to estimate the amount and timing of future Revenue Interest Payments based on our estimate of the timing and amount of future revenues and calculate an effective interest rate which will amortize the obligation to zero over the amortization period. The calculated effective interest rate as of September 30, 2023 was 11.3%.

In connection with the Purchase Agreement, we incurred debt issuance costs of $0.6 million. Debt issuance costs have been recorded to debt and are being amortized over the estimated term of the debt using the effective interest method, adjusted on a prospective basis for changes in the underlying assumptions and inputs.

The assumptions used in determining the expected repayment term of the obligation and amortization period of the issuance costs requires that we make estimates that could impact the short- and long-term classification of these costs, as well as the period over which these costs will be amortized. We periodically assess the amount and timing of expected Revenue Interest Payments based on internal forecasts. To the extent such payments are greater or less than our initial estimates or the timing of such payments is materially different than our original estimates, we will prospectively adjust the amortization of the revenue interest liability and the effective interest rate.

The following table sets forth the revenue interest liability, net activity during the nine months ended September 30, 2023 (in thousands):

Revenue interest liability, net at December 31, 2022	$	125,360
Interest expense		3,531
Revenue interest payable		(1,883	)
Revenue interest liability, net at March 31, 2023		127,008
Interest expense		3,605
Revenue interest payable		(2,446	)
Revenue interest liability, net at June 30, 2023		128,167
Interest expense		3,652
Revenue interest payable		(1,896	)
Revenue interest liability, net at September 30, 2023		129,923
Less: Current portion at September 30, 2023		(3,194	)
Revenue interest liability, net, less current portion at September 30, 2023	$	126,729

Revenue interest payable of $1.9 million and $2.8 million was included within the accounts payable balance on the unaudited condensed consolidated balance sheet as of September 30, 2023 and on the condensed consolidated balance sheet as of December 31, 2022, respectively.

9. Commitments and Contingencies

Legal Proceedings

We are subject to claims and assessments from time to time in the ordinary course of business. We will accrue a liability for such matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. When only a range of possible loss can be established, the most probable amount in the range is accrued. If no amount within this range is a better estimate than any other amount within the range, the minimum amount in the range is accrued. We were not party to any material legal proceedings as of September 30, 2023.

17

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Indemnification Agreements

In the ordinary course of business, we may provide indemnification of varying scope and terms to vendors, lessors, customers and other parties with respect to certain matters including, but not limited to, losses arising out of breach of our agreements with them or from intellectual property infringement claims made by third parties. In addition, we have entered into indemnification agreements with members of our board of directors and certain of our executive officers that will require us to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The maximum potential amount of future payments that we could be required to make under these indemnification agreements is, in many cases, unlimited. We have not incurred any material costs as a result of such indemnifications and are not currently aware of any indemnification claims.

10. Shareholders’ Equity

Common Stock

Our common stock has no preferences or privileges and is not redeemable. Holders of our common stock are entitled to one vote for each share of common stock held. The holders of record of outstanding shares of common stock shall be entitled to receive, when, as and if declared, out of funds legally available, such cash and other dividends as may be declared from time to time.

Our 2019 Equity Incentive Plan (the “2019 Plan”) provides for annual increases in the number of shares that may be issued under the 2019 Plan on January 1, 2020 and on each subsequent January 1, thereafter, by a number of shares equal to the lesser of (a) 5% of the number of shares of common stock issued and outstanding on the immediately preceding December 31, or (b) an amount determined by our board of directors.

Furthermore, our Employee Stock Purchase Plan (the “ESPP”) provides for annual increases in the number of shares available for issuance under our ESPP on January 1, 2020 and on each January 1, thereafter, by a number of shares equal to the smallest of (a) 1% of the number of shares of common stock issued and outstanding on the immediately preceding December 31, or (b) an amount determined by our board of directors.

Effective January 1, 2023, our 2019 Plan and ESPP reserves increased by 7,155,250 shares and 1,431,050 shares, respectively.

As of September 30, 2023, we had reserved shares of common stock for the following:

Shares issuable upon the exercise of outstanding stock options granted	13,424,786
Shares issuable upon the vesting of outstanding restricted stock units granted and the maximum outstanding market-based restricted stock units eligible to be earned	11,851,128
Shares available for future grant under the 2019 Equity Incentive Plan	14,790,548
Shares available for future grant under the Employee Stock Purchase Plan	4,235,348
Total shares of common stock reserved for future issuance	44,301,810

11. Equity Incentive Plans

2009 Equity Incentive Plan

We adopted an equity incentive plan in 2009 (the “2009 Plan”) that provided for the issuance of incentive and nonqualified common stock options and other share-based awards for employees, directors and consultants. Under the 2009 Plan, the exercise price for incentive and nonqualified stock options were not to be less than the fair market value of our common stock at the date of grant. Stock options granted under this plan expire no later than ten years from the grant date and vesting was established at the time of grant. Pursuant to the terms of the 2019 Plan, any shares subject to outstanding stock options originally granted under the 2009 Plan that terminate, expire or lapse for any reason without the delivery of shares to the holder thereof shall become available for issuance pursuant to awards granted under the 2019 Plan. While no shares are available for future grant under the 2009 Plan, it continues to govern outstanding equity awards granted thereunder.

18

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

2019 Equity Incentive Plan

The 2019 Plan became effective immediately prior to the closing of our initial public offering in July 2019. The 2019 Plan provides for the issuance of awards in the form of stock options and other share-based awards for employees, directors and consultants. Under the 2019 Plan, the stock option exercise price per share shall not be less than the fair market value of a share of stock on the effective date of grant, as defined by the 2019 Plan, unless explicitly qualified under the provisions of Section 409A or Section 424(a) of the Internal Revenue Code of 1986. Additionally, unless otherwise specified, stock options granted under this plan expire no later than ten years from the grant date and vesting is established at the time of grant. Except for certain stock option and restricted stock unit grants made to non-employee directors, stock options and restricted stock units granted under the 2019 Plan generally vest over a four-year period, subject to continuous service through each applicable vesting date. As of September 30, 2023, we had 34,913,524 shares of common stock authorized for issuance under the 2019 Plan.

Changes in shares available for grant during the nine months ended September 30, 2023 were as follows:

	Shares Available for Grant
Shares available for grant at December 31, 2022		14,581,975
2019 Equity Incentive Plan reserve increase effective January 1, 2023		7,155,250
Stock options and restricted stock units granted and the maximum market-based restricted stock units granted eligible to be earned		(9,868,290	)
Stock options and restricted stock units forfeited or expired		2,921,613
Shares available for grant at September 30, 2023		14,790,548

Stock Options

Stock option activity under the 2009 Plan and 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Shares Subject to Outstanding Stock Options			Weighted-Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)
Stock options outstanding at December 31, 2022		13,520,997		$	16.88
Stock options granted		1,612,032			8.46
Stock options forfeited		(1,000,780	)		16.99
Stock options expired		(340,058	)		27.34
Stock options exercised		(367,405	)		5.87
Stock options outstanding at September 30, 2023		13,424,786		$	15.90	$	1,108
Stock options vested and exercisable at September 30, 2023		9,145,151		$	15.87	$	1,108

The weighted-average remaining contractual life for stock options outstanding as of September 30, 2023 was 6.3 years. The weighted-average remaining contractual life for vested and exercisable stock options as of September 30, 2023 was 5.2 years.

Restricted Stock Units

Restricted stock unit activity under the 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Restricted Stock Units Outstanding			Weighted-Average Grant Date Fair Value per Share
Nonvested restricted stock units outstanding at December 31, 2022		5,981,755		$	14.11
Restricted stock units granted		6,837,818			8.36
Restricted stock units forfeited		(1,580,775	)		11.37
Restricted stock units vested		(1,300,344	)		14.80
Nonvested restricted stock units outstanding at September 30, 2023		9,938,454		$	10.49

19

Adaptive Biotechnologies Corporation

Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Market-Based Restricted Stock Units

In addition to the restricted stock units described above, our board of directors approved awards of market-based restricted stock units to our chief executive officer and chief scientific officer in March 2023. The shares of common stock that may be earned under the awards, each ranging from zero shares to 709,220 shares, are calculated based upon our total shareholder return during a three-year performance period as measured against that of the group of companies comprising the S&P Biotechnology Select Industry Index as of the grant date, subject to certain adjustments to such index group. Except as expressly provided in the terms of each award's agreement, vesting is subject to the respective grantee's continuous service through the end of the three-year performance period. These market-based restricted stock units, along with those granted to our chief executive officer in March 2022, under which zero shares to 494,234 shares may be earned, remain outstanding as of September 30, 2023.

Grant Date Fair Value of Stock Options, Restricted Stock Units and Market-Based Restricted Stock Units Granted

The estimated grant date fair values of stock options granted during the nine months ended September 30, 2023 and 2022 were estimated using the Black-Scholes option-pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Fair value of common stock	$8.46		$7.30 - $14.95
Expected term (in years)	5.27 - 6.08		5.27 - 6.08
Risk-free interest rate	4.2% - 4.3%		1.7% - 3.0%
Expected volatility	71.2% - 71.6%		68.2% - 71.0%
Expected dividend yield		—		—

The determination of the grant date fair value of stock options granted using a Black-Scholes option-pricing model is affected by the fair value of our common stock, as well as assumptions regarding a number of variables that are subjective and generally require judgment to determine. The valuation assumptions were determined as follows:

Fair value of common stock—The fair value of each share of common stock is based on the closing price of our common stock on the date of grant, or other relevant determination date, as reported on The Nasdaq Global Select Market.

Expected term—The expected term of stock options granted to employees and non-employee directors is determined using the “simplified” method, as illustrated in ASC Topic 718, Compensation—Stock Compensation, as we do not have sufficient exercise history to determine a better estimate of expected term. Under this approach, the expected term is based on the midpoint between the vesting date and the end of the contractual term of the stock option.

Risk-free interest rate—We utilize a risk-free interest rate in the option valuation model based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected terms of the stock options.

Expected volatility—As we do not have sufficient trading history for our common stock, expected volatility is based on the historical volatility of our publicly traded industry peers utilizing a period of time consistent with our estimate of expected term.

Expected dividend yield—We do not anticipate paying any cash dividends in the foreseeable future and, therefore, use an expected dividend yield of zero in the option valuation model.

The weighted-average grant date fair value per share of stock options granted during the nine months ended September 30, 2023 and 2022 was $5.61 and $7.36, respectively.

The grant date fair value of restricted stock units granted is based on the closing price of our common stock on the date of grant, or other relevant determination date, as reported on The Nasdaq Global Select Market. The weighted-average grant date fair value per share of restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $8.36 and $11.72, respectively.

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

The weighted-average grant date fair value per share of the market-based restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $13.82 and $18.89, respectively, and was determined using a Monte Carlo valuation model, which uses assumptions such as volatility, risk-free interest rate and dividend estimated for the respective performance periods. The weighted-average grant date fair value per share of the target payout level of the market-based restricted stock units outstanding as of September 30, 2023, 956,337 shares, was $15.13. The aggregate share-based compensation expense of the market-based restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $9.8 million and $4.7 million, respectively, and is recognized on a straight-line basis over the respective grants' three-year performance periods, which are also the requisite service periods. Attainment of each grant's respective market condition and the number of shares earned and vested does not impact the related share-based compensation expense recognized. Share-based compensation expense will be reversed only if the respective grantee does not provide continuous service through the respective performance period for reasons other than those expressly provided in the terms of the respective award.

The compensation cost related to stock options, restricted stock units and market-based restricted stock units for the three and nine months ended September 30, 2023 and 2022, respectively, are included on the unaudited condensed consolidated statements of operations as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of revenue	$	917	$	1,058	$	3,272	$	2,807
Research and development		5,187		4,382		15,267		13,370
Sales and marketing		3,241		3,357		11,111		10,170
General and administrative		5,991		5,345		17,702		14,836
Total share-based compensation expense	$	15,336	$	14,142	$	47,352	$	41,183

As of September 30, 2023, unrecognized share-based compensation expense and the remaining weighted-average recognition period were as follows:

	Unrecognized Share-Based Compensation Expense (in thousands)		Remaining Weighted-Average Recognition Period (in years)
Nonvested stock options	$	40,916		2.08
Nonvested restricted stock units		85,893		2.90
Nonvested market-based restricted stock units		10,157		2.21

12. Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders

The following table sets forth the computation of basic and diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively (in thousands, except share and per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted		144,704,868			142,928,654			144,208,940			142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted	$	(0.35	)	$	(0.32	)	$	(1.08	)	$	(1.12	)

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Notes to Unaudited Condensed Consolidated Financial Statements (Continued)

(unaudited)

Given the loss position for all periods presented, basic net loss per share attributable to our common shareholders is the same as diluted net loss per share attributable to our common shareholders, as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive.

The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively, as they had an anti-dilutive effect:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Stock options outstanding		13,806,283		13,996,403		14,054,478		13,984,427
Nonvested restricted stock units outstanding		10,301,308		5,486,711		9,575,868		4,490,170
Maximum nonvested market-based restricted stock units outstanding eligible to be earned		1,912,674		494,234		1,580,146		381,990
Total		26,020,265		19,977,348		25,210,492		18,856,587

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Adaptive Biotechnologies Corporation

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations together with the unaudited condensed consolidated financial statements and related notes and the other financial information appearing elsewhere in this report, as well as the other financial information we file with the SEC from time to time. Some of the information contained in this discussion and analysis or set forth elsewhere in this report, including information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that involve risks and uncertainties relating to our future plans, objectives, expectations, intentions and financial performance and the assumptions that underlie these statements.

As a result of many factors, including those factors set forth in the “Risk Factors” section of this report, our actual results could differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.

Overview

We are advancing the field of immune medicine by harnessing the inherent biology of the adaptive immune system to transform the diagnosis and treatment of disease. We believe the adaptive immune system is nature’s most finely tuned diagnostic and therapeutic for most diseases, but the inability to decode it has prevented the medical community from fully leveraging its capabilities. Our immune medicine platform applies our proprietary technologies to read the diverse genetic code of a patient’s immune system and aims to understand precisely how the immune system detects and treats disease in that patient. We capture these insights in our dynamic clinical immunomics database, which is underpinned by computational biology and machine learning, and use them to develop and commercialize clinical products and services that we are tailoring to each individual patient. We have commercial products and services and a robust pipeline of clinical products and services that we are designing to diagnose, monitor and enable the treatment of diseases, such as cancer and autoimmune disorders. Our existing and future commercial products and services are aligned to two markets which we refer to as MRD and Immune Medicine.

Our current product and service offerings in MRD related to the MRD market are our clonoSEQ clinical diagnostic test, offered to clinicians, and our clonoSEQ or MRD assay, offered to biopharmaceutical partners to advance drug development efforts (“MRD Pharma”). Our first clinical diagnostic product, clonoSEQ, is the first test authorized by the Food and Drug Administration for the detection and monitoring of minimal residual disease in patients with multiple myeloma, B cell acute lymphoblastic leukemia and chronic lymphocytic leukemia, and is also available as a CLIA-validated laboratory developed test for patients with other lymphoid cancers, including diffuse large B-cell lymphoma. With the use of clonoSEQ, we are transforming how lymphoid cancers are treated by working with providers, pharmaceutical partners and payors.

Immune Medicine leverages our platform’s proprietary ability to sequence, map, pair and characterize T cell receptors (“TCRs”) and B cell receptors (“BCRs”) at scale to drive opportunities in cancer, autoimmune disorders, infectious diseases and neurodegenerative disorders. The cornerstone of our platform and core immunosequencing product, immunoSEQ, serves as our underlying research and development engine and generates revenue from biopharmaceutical and academic customers. Leveraging our collaboration with Microsoft Corporation, we are creating the TCR-Antigen Map. We are using the TCR-Antigen Map to identify and validate disease signatures to improve the diagnosis and treatment of many diseases. We are focused on expanding and growing our revenue and offerings in two areas of growth: IM Pharma Services and Drug Discovery. In IM Pharma Services, we deliver rich TCR and BCR sequencing data back to our biopharmaceutical and academic customers. These data inform biomarkers of drug response with the ability to accelerate our customers’ clinical development programs in four major therapeutic areas. In Drug Discovery, we use our proprietary capabilities to discover new drug targets and leverage our validated TCR and BCR discovery approaches to discover and develop TCR or antibody therapeutic assets. Drug Discovery includes our worldwide collaboration and license agreement with Genentech (the “Genentech Agreement”). Part of our strategy within Immune Medicine is to develop a diagnostic test for many diseases from a single blood test, known as T-Detect. In 2022, we decided to defer further commercialization of T-Detect until we have strong enough data in multiple disease states to impact physician behavior with a clear path to reimbursement.

We recognized revenue of $37.9 million and $47.8 million for the three months ended September 30, 2023 and 2022, respectively, and $124.5 million and $130.1 million for the nine months ended September 30, 2023 and 2022, respectively. Net loss attributable to Adaptive Biotechnologies Corporation was $50.3 million and $45.3 million for the three months ended September 30, 2023 and 2022, respectively, and $155.8 million and $160.1 million for the nine months ended September 30, 2023 and 2022, respectively. We have funded our operations to date principally from the sale of convertible preferred stock and common stock and, to a lesser extent, revenue and proceeds from the revenue interest purchase agreement we entered into in September 2022 with OrbiMed Royalty & Credit Opportunities IV, LP, an affiliate of OrbiMed Advisors LLC, as collateral agent and administrative agent for the purchasers party thereto (the “Purchase Agreement”). As of September 30, 2023 and December 31, 2022, we had cash, cash equivalents and marketable securities of $371.1 million and $498.2 million, respectively.

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Components of Results of Operations

Revenue

We derive revenue by providing diagnostic and research services in our Immune Medicine and MRD market opportunities. Our Immune Medicine revenue consists of revenue generated from (1) providing sample testing services for our commercial research product, immunoSEQ, to biopharmaceutical customers and academic institutions; (2) our collaboration agreements with Genentech and other biopharmaceutical customers in areas of drug and target discovery; and (3) providing our T-Detect COVID tests to clinical customers. Our MRD revenue consists of revenue generated from (1) providing our clonoSEQ report to clinical customers; (2) providing MRD sample testing services to biopharmaceutical customers and certain academic institutions, including investigator-led clinical trials; and (3) providing our clonoSEQ report or results to certain international laboratory sites through technology transfers. We disclose our clonoSEQ test volume, which includes the number of clonoSEQ reports and results we have provided to ordering physicians in the United States and international technology transfer sites. These volumes do not include sample results from our biopharmaceutical customers or academic institutions utilizing our MRD services.

For our research customers, which include biopharmaceutical customers and academic institutions for both our immunoSEQ and MRD services, delivery of the respective test results may include some level of professional support and analysis. Terms with biopharmaceutical customers generally include non-refundable payments made in advance of services (“upfront payments”), which we record as deferred revenue. For all research customers, we recognize revenue as we deliver sequencing results. From time to time, we offer discounts in order to gain rights and access to certain datasets. Revenue is recognized net of these discounts and costs associated with these services are reflected in cost of revenue. In periods where our sample estimates are reduced or a customer project is cancelled and, in either case, we have remaining related deferred revenue, we recognize revenue using a cumulative catch-up approach based on the proportion of samples delivered to date relative to the remaining samples expected to be delivered. Certain of our MRD revenue arrangements with biopharmaceutical customers include consideration in the form of regulatory milestones upon regulatory approval of the respective biopharmaceutical partners’ therapeutics. Such revenue is constrained from recognition until it becomes probable that such milestone will be achieved.

Under certain agreements with our biopharmaceutical customers who seek access to our platform to support their therapeutic development activities, revenues are generated from research and development support services that we provide. These agreements may include substantial non-refundable upfront payments, which we recognize over time as we perform the respective services. Revenue recognized from these activities relate primarily to the Genentech Agreement.

For our clinical customers, we primarily derive revenue from providing our clonoSEQ report to ordering physicians. We bill commercial, government and medical institution payors based on reports delivered to ordering physicians. Amounts paid for clonoSEQ by commercial, government and medical institution payors vary based on respective reimbursement rates and patient responsibilities, which may differ from our targeted list price. We recognize clinical revenue by evaluating customer payment history, contracted reimbursement rates, if applicable, and other adjustments to estimate the amount of revenue that is collectible.

For our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test report. This billing contemplates all necessary tests required during a patient’s treatment cycle, which is currently estimated at approximately four tests per patient, including the initial sequence identification test. Revenue recognition commences at the time the initial billable test report is delivered and is based upon cumulative tests delivered to date. Any unrecognized revenue from the initial billable test is recorded as deferred revenue and recognized either as we deliver our estimate of the remaining tests in a patient’s treatment cycle or when the likelihood becomes remote that a patient will receive additional testing.

We expect revenue to increase over the long term. Our revenue may fluctuate from period to period due to the uncertain nature of delivery of our products and services, the achievement of milestones by our customers, timing of expenses incurred, changes in estimates of total anticipated costs related to the Genentech Agreement and other events not within our control, such as the delivery of customer samples or customer decisions to no longer pursue their development initiatives.

Cost of Revenue

Cost of revenue includes the cost of materials, personnel-related expenses (including salaries, benefits and share-based compensation), shipping and handling expenses, equipment costs, allocated facility costs associated with processing samples and professional support costs related to our service revenue activities. Allocated facility costs include depreciation of laboratory equipment, as well as allocated facility occupancy and information technology costs. Costs associated with processing samples are recorded as expense, regardless of the timing of revenue recognition. As such, cost of revenue and related volume does not always trend in the same direction as revenue recognition and related volume. Additionally, costs to support the Genentech Agreement are a component of our research and development expenses.

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Adaptive Biotechnologies Corporation

We expect cost of revenue to increase in absolute dollars as we grow our sample testing volume, but the cost per sample to decrease over the long term due to the efficiencies we may gain as assay volume increases from improved utilization of our laboratory capacity, automation and other value engineering initiatives. If our sample volume throughput is reduced, cost of revenue as a percentage of total revenue may be adversely impacted due to fixed overhead costs.

Research and Development Expenses

Research and development expenses consist of laboratory materials costs, personnel-related expenses (including salaries, benefits and share-based compensation), equipment costs, allocated facility costs, information technology expenses and contract service expenses. Research and development activities support further development and refinement of existing assays and products, discovery of new technologies and investments in our immune medicine platform. We also include in research and development expenses the costs associated with software development of applications to support future commercial opportunities, as well as development activities to support laboratory scaling and workflow. We are currently conducting research and development activities for several products and services and we typically use our laboratory materials, personnel, facilities, information technology and other development resources across multiple development programs. Additionally, certain of these research and development activities benefit more than one of our product opportunities. We have not historically tracked research and development expenses by specific product candidates.

The costs to support the Genentech Agreement are a component of our research and development expenses. Additionally, a component of our research and development expenses are costs supporting clinical and analytical validations to obtain regulatory approval for future clinical products and services. Some of these activities have generated and may in the future generate revenue.

We expect research and development expenses to decrease in the short term and to decrease as a percentage of revenue in the long term, although the percentage may fluctuate from period to period due to the timing and extent of our development and commercialization efforts.

Sales and Marketing Expenses

Sales and marketing expenses include personnel-related expenses (including salaries, benefits and share-based compensation) for commercial sales, product and account management, marketing, reimbursement, medical education and business development personnel that support commercialization of our platform products. In addition, these expenses include external costs such as advertising expenses, customer education and promotional expenses, market analysis expenses, conference fees, travel expenses and allocated facility costs.

We expect sales and marketing expenses to experience moderate decreases in the short term. In the long term, we expect sales and marketing expenses to increase in absolute dollars as we increase marketing activities to drive awareness and adoption of our products and services. However, we expect sales and marketing expenses to decrease as a percentage of revenue in the long term, subject to fluctuations from period to period due to the timing and magnitude of these expenses.

General and Administrative Expenses

General and administrative expenses include personnel-related expenses (including salaries, benefits and share-based compensation) for our personnel in executive, legal, finance and accounting, human resources and other administrative functions, including third-party clinical billing services. In addition, these expenses include insurance costs, external legal costs, accounting and tax service expenses, consulting fees and allocated facility costs.

We expect general and administrative expenses to remain relatively consistent in the short term and to decrease as a percentage of revenue in the long term.

Interest Expense

Interest expense includes costs associated with our revenue interest liability related to the Purchase Agreement and noncash interest costs associated with the amortization of the related deferred issuance costs. We impute the related interest expense using the effective interest rate method. We calculate an effective interest rate which will amortize our related obligation to zero over the anticipated repayment period. A significant increase or decrease in or changes in timing of forecasted revenue will prospectively impact our interest expense.

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Statements of Operations Data and Other Financial and Operating Data

The following table sets forth our statements of operations data and other financial and operating data for the periods presented (in thousands, except share and per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Statements of Operations Data:
Revenue	$	37,919		$	47,830		$	124,492		$	130,110
Operating expenses
Cost of revenue		19,346			14,907			55,937			41,320
Research and development		28,533			35,658			93,371			110,534
Sales and marketing		20,493			21,513			66,673			71,887
General and administrative		20,075			20,755			63,208			66,099
Amortization of intangible assets		428			428			1,270			1,270
Total operating expenses		88,875			93,261			280,459			291,110
Loss from operations		(50,956	)		(45,431	)		(155,967	)		(161,000	)
Interest and other income, net		4,282			765			10,918			1,454
Interest expense		(3,652	)		(653	)		(10,788	)		(653	)
Net loss		(50,326	)		(45,319	)		(155,837	)		(160,199	)
Add: Net loss attributable to noncontrolling interest		26			38			28			136
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted	$	(0.35	)	$	(0.32	)	$	(1.08	)	$	(1.12	)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted		144,704,868			142,928,654			144,208,940			142,334,342
Other Financial and Operating Data:
Adjusted EBITDA(1)	$	(29,831	)	$	(25,868	)	$	(91,748	)	$	(102,024	)

(1) Adjusted EBITDA is a non-GAAP financial measure that we define as net loss attributable to Adaptive Biotechnologies Corporation adjusted for interest and other income, net, interest expense, income tax (expense) benefit, depreciation and amortization expense, restructuring expense and share-based compensation expense. Please refer to “Adjusted EBITDA” below for a reconciliation between Adjusted EBITDA and net loss attributable to Adaptive Biotechnologies Corporation, the most directly comparable GAAP financial measure, and a discussion about the limitations of Adjusted EBITDA.

Comparison of the Three Months Ended September 30, 2023 and 2022

Revenue

	Three Months Ended September 30,				Change						Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%			2023			2022
Immune Medicine revenue
Service revenue	$	5,238	$	6,559	$	(1,321	)	(20)%
Collaboration revenue		8,013		21,320		(13,307	)		(62	)
Total Immune Medicine revenue		13,251		27,879		(14,628	)		(52	)		35	%		58	%
MRD revenue
Service revenue		24,668		19,951		4,717			24
Regulatory milestone revenue		—		—		—		*
Total MRD revenue		24,668		19,951		4,717			24			65	%		42	%
Total revenue	$	37,919	$	47,830	$	(9,911	)		(21	)		100	%		100	%
* Not applicable

The $14.6 million decrease in Immune Medicine revenue was primarily due to a $12.4 million decrease in revenue generated from the Genentech Agreement resulting primarily from decreased collaboration expenses and a $2.1 million decrease in revenue generated from our biopharmaceutical and academic customers, $0.9 million of which was driven by the completion of our development activities for one of our biopharmaceutical collaboration agreements in the third quarter of 2022.

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Adaptive Biotechnologies Corporation

The $4.7 million increase in MRD revenue was primarily due to a $4.7 million increase in revenue generated from providing clonoSEQ to clinical customers, partially offset by a $0.4 million decrease in revenue generated from providing MRD sample testing services to biopharmaceutical customers. Our clonoSEQ test volume increased by 56% to 15,072 tests delivered in the three months ended September 30, 2023 from 9,649 tests delivered in the three months ended September 30, 2022.

Cost of Revenue

	Three Months Ended September 30,				Change					Percent of Revenue
(in thousands, except percentages)	2023		2022		$		%			2023			2022
Cost of revenue	$	19,346	$	14,907	$	4,439		30	%		51	%		31	%

The $4.4 million increase in cost of revenue was primarily attributable to a $2.2 million increase in overhead costs largely driven by laboratory relocation and consolidation activities, a $1.0 million increase related to higher usage of our production laboratory to process revenue samples versus research and development samples, a $0.7 million increase in materials cost resulting from increased revenue sample volume and a $0.6 million increase in shipping and handling expenses.

Research and Development

	Three Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
Research and development	$	28,533	$	35,658	$	(7,125	)	(20)%		75	%		75	%

The following table presents disaggregated research and development expenses by cost classification for the periods presented:

	Three Months Ended September 30,
(in thousands)	2023		2022		Change
Research and development materials and allocated production laboratory expenses	$	4,063	$	10,138	$	(6,075	)
Personnel expenses		17,979		16,534		1,445
Allocable facilities and information technology expenses		2,931		2,616		315
Software and cloud services expenses		697		729		(32	)
Depreciation and other expenses		2,863		5,641		(2,778	)
Total	$	28,533	$	35,658	$	(7,125	)

The $7.1 million decrease in research and development expenses was primarily attributable to a $6.1 million decrease in cost of materials and allocated production laboratory expenses, which was driven primarily by decreased investments in drug discovery efforts, including collaboration efforts with Genentech, and decreased investments in T-Detect and TCR-Antigen Map development activities. There was also a $1.3 million decrease in costs related to collaboration studies and clinical trials and a $1.3 million decrease in consultant costs, which were the primary drivers of the $2.8 million decrease in depreciation and other expenses. These decreases were partially offset by a $1.4 million increase in personnel costs and a $0.3 million increase in allocable facility expenses.

Sales and Marketing

	Three Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
Sales and marketing	$	20,493	$	21,513	$	(1,020	)	(5)%		54	%		45	%

The $1.0 million decrease in sales and marketing expenses was primarily attributable to a $1.1 million decrease in personnel costs and a $1.1 million decrease in marketing expenses, which was largely driven by reduced clonoSEQ marketing activities and our deferral of commercializing T-Detect. These decreases were partially offset by a $0.8 million increase in computer and software expenses and a $0.4 million increase in travel and customer event related expenses.

General and Administrative

	Three Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
General and administrative	$	20,075	$	20,755	$	(680	)	(3)%		53	%		43	%

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The $0.7 million decrease in general and administrative expenses was primarily attributable to a $1.5 million decrease in building, facility and depreciation related expenses, driven largely by office space transitions made to support lab consolidation activities, and a $0.4 million decrease in consultant costs. These decreases were partially offset by a $0.4 million increase in personnel costs, driven primarily by increased share-based compensation, a $0.4 million increase in third-party billing service fees and a $0.3 million increase in legal and tax fees.

Interest and Other Income, Net

	Three Months Ended September 30,				Change
(in thousands, except percentages)	2023		2022		$		%
Interest and other income, net	$	4,282	$	765	$	3,517		460	%

The $3.5 million increase in interest and other income, net was primarily attributable to an increase in net interest income and investment amortization driven by increased interest rates and related yields of our invested cash and cash equivalents and marketable securities.

Interest Expense

	Three Months Ended September 30,						Change
(in thousands, except percentages)	2023			2022			$			%
Interest expense	$	(3,652	)	$	(653	)	$	(2,999	)		459	%

The $3.0 million increase in interest expense was attributable to the Purchase Agreement entered into in September 2022.

Comparison of the Nine Months Ended September 30, 2023 and 2022

Revenue

	Nine Months Ended September 30,				Change						Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%			2023			2022
Immune Medicine revenue
Service revenue	$	17,848	$	20,968	$	(3,120	)	(15)%
Collaboration revenue		34,667		50,105		(15,438	)		(31	)
Total Immune Medicine revenue		52,515		71,073		(18,558	)		(26	)		42	%		55	%
MRD revenue
Service revenue		71,977		55,037		16,940			31
Regulatory milestone revenue		—		4,000		(4,000	)		(100	)
Total MRD revenue		71,977		59,037		12,940			22			58	%		45	%
Total revenue	$	124,492	$	130,110	$	(5,618	)		(4	)		100	%		100	%

The $18.6 million decrease in Immune Medicine revenue was primarily due to an $11.8 million decrease in revenue generated from the Genentech Agreement resulting from decreased collaboration expenses partially offset by the $8.0 million recognized in connection with the regulatory milestone achieved in May 2023. There was also a $5.6 million decrease in revenue generated from our biopharmaceutical customers, $3.5 million of which was driven by the completion of our development activities for one of our collaboration agreements in the third quarter of 2022, and a $1.1 million decrease in revenue generated from our T-Detect COVID clinical customers resulting from our deferral of commercializing T-Detect.

The $12.9 million increase in MRD revenue was primarily due to a $12.1 million increase in revenue generated from providing clonoSEQ to clinical customers, a $2.5 million increase in revenue generated from providing MRD sample testing services to biopharmaceutical customers and a $2.0 million increase in revenue generated from providing MRD sample testing services to investigator-led clinical trials. These increases were partially offset by a $4.0 million decrease in revenue recognized upon the achievement of regulatory milestones by some of our biopharmaceutical customers. Our clonoSEQ test volume increased by 55% to 40,816 tests delivered in the nine months ended September 30, 2023 from 26,345 tests delivered in the nine months ended September 30, 2022.

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Cost of Revenue

	Nine Months Ended September 30,				Change					Percent of Revenue
(in thousands, except percentages)	2023		2022		$		%			2023			2022
Cost of revenue	$	55,937	$	41,320	$	14,617		35	%		45	%		32	%

The $14.6 million increase in cost of revenue was primarily attributable to a $7.2 million increase related to higher usage of our production laboratory to process revenue samples versus research and development samples, a $5.3 million increase in overhead costs largely driven by laboratory relocation and consolidation activities and a $2.0 million increase in materials cost resulting from increased revenue sample volume.

Research and Development

	Nine Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
Research and development	$	93,371	$	110,534	$	(17,163	)	(16)%		75	%		85	%

The following table presents disaggregated research and development expenses by cost classification for the periods presented:

	Nine Months Ended September 30,
(in thousands)	2023		2022		Change
Research and development materials and allocated production laboratory expenses	$	16,130	$	35,623	$	(19,493	)
Personnel expenses		56,598		51,826		4,772
Allocable facilities and information technology expenses		8,817		6,495		2,322
Software and cloud services expenses		2,424		2,132		292
Depreciation and other expenses		9,402		14,458		(5,056	)
Total	$	93,371	$	110,534	$	(17,163	)

The $17.2 million decrease in research and development expenses was primarily attributable to a $19.5 million decrease in cost of materials and allocated production laboratory expenses, which was driven primarily by decreased investments in T-Detect and TCR-Antigen Map development activities, as well as decreased investments in drug discovery efforts, including collaboration efforts with Genentech. There was also a $2.6 million decrease in consultant costs and a $2.2 million decrease in costs related to collaboration studies and clinical trials, which were the primary drivers of the $5.1 million decrease in depreciation and other expenses. These decreases were partially offset by a $4.8 million increase in personnel costs, a $2.3 million increase in allocable facility expenses and a $0.3 million increase in software and cloud services expenses.

Sales and Marketing

	Nine Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
Sales and marketing	$	66,673	$	71,887	$	(5,214	)	(7)%		54	%		55	%

The $5.2 million decrease in sales and marketing expenses was primarily attributable to a $4.2 million decrease in marketing expenses, which was largely driven by our deferral of commercializing T-Detect and reduced clonoSEQ marketing activities, a $2.7 million decrease in personnel costs and a $1.0 million decrease in consultant costs. These decreases were partially offset by a $1.6 million increase in computer and software expenses and a $0.9 million increase in allocated facility costs.

General and Administrative

	Nine Months Ended September 30,				Change				Percent of Revenue
(in thousands, except percentages)	2023		2022		$			%	2023			2022
General and administrative	$	63,208	$	66,099	$	(2,891	)	(4)%		51	%		51	%

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Adaptive Biotechnologies Corporation

The $2.9 million decrease in general and administrative expenses was primarily attributable to a $6.0 million decrease in building, facility and depreciation related expenses, driven largely by office space transitions made to support lab consolidation activities, a $1.6 million decrease in consultant costs and a $1.4 million decrease in insurance costs. These decreases were partially offset by a $2.8 million increase in personnel costs, driven primarily by increased share-based compensation, a $1.4 million increase in computer and software expenses, a $0.9 million increase in accounting, legal and tax fees and a $0.7 million increase in third-party billing service fees.

Interest and Other Income, Net

	Nine Months Ended September 30,				Change
(in thousands, except percentages)	2023		2022		$		%
Interest and other income, net	$	10,918	$	1,454	$	9,464		651	%

The $9.5 million increase in interest and other income, net was primarily attributable to an increase in net interest income and investment amortization driven by increased interest rates and related yields of our invested cash and cash equivalents and marketable securities.

Interest Expense

	Nine Months Ended September 30,						Change
(in thousands, except percentages)	2023			2022			$			%
Interest expense	$	(10,788	)	$	(653	)	$	(10,135	)		1552	%

The $10.1 million increase in interest expense was attributable to the Purchase Agreement entered into in September 2022.

Adjusted EBITDA

Adjusted EBITDA is a non-GAAP financial measure that we define as net loss attributable to Adaptive Biotechnologies Corporation adjusted for interest and other income, net, interest expense, income tax (expense) benefit, depreciation and amortization expense, restructuring expense and share-based compensation expense.

Management uses Adjusted EBITDA to evaluate the financial performance of our business and the effectiveness of our business strategies. We present Adjusted EBITDA because we believe it is frequently used by analysts, investors and other interested parties to evaluate companies in our industry and it facilitates comparisons on a consistent basis across reporting periods. Further, we believe it is helpful in highlighting trends in our operating results because it excludes items that are not indicative of our core operating performance.

Adjusted EBITDA has limitations as an analytical tool and you should not consider it in isolation or as a substitute for analysis of our results as reported under GAAP. We may in the future incur expenses similar to the adjustments in the presentation of Adjusted EBITDA. In particular, we expect to incur meaningful share-based compensation expense in the future. Other limitations include that Adjusted EBITDA does not reflect:

•all expenditures or future requirements for capital expenditures or contractual commitments;

•changes in our working capital needs;

•interest expense, which is an ongoing element of our costs to operate;

•income tax (expense) benefit, which may be a necessary element of our costs and ability to operate;

•the costs of replacing the assets being depreciated and amortized, which will often have to be replaced in the future;

•the noncash component of employee compensation expense; and

•the impact of earnings or charges resulting from matters we consider not to be reflective, on a recurring basis, of our ongoing operations, such as our March 2022 restructuring and reduction in workforce.

In addition, Adjusted EBITDA may not be comparable to similarly titled measures used by other companies in our industry or across different industries.

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Adaptive Biotechnologies Corporation

The following is a reconciliation of net loss attributable to Adaptive Biotechnologies Corporation, the most directly comparable GAAP financial measure, to Adjusted EBITDA for the periods presented (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Interest and other income, net		(4,282	)		(765	)		(10,918	)		(1,454	)
Interest expense (1)		3,652			653			10,788			653
Depreciation and amortization expense		5,763			5,383			16,839			15,634
Restructuring expense (2)		—			—			—			2,023
Share-based compensation expense (3)		15,336			14,142			47,352			41,183
Adjusted EBITDA	$	(29,831	)	$	(25,868	)	$	(91,748	)	$	(102,024	)

(1) Represents costs associated with our revenue interest liability and noncash interest costs associated with the amortization of the related deferred issuance costs. See Note 8 of the accompanying notes to the unaudited condensed consolidated financial statements included elsewhere in this report for details on the Purchase Agreement.

(2) Represents expenses recognized in conjunction with restructuring activities. See Note 16 of the notes to our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023 for details on our restructuring expense.

(3) Represents share-based compensation expense related to stock option, restricted stock unit and market-based restricted stock unit awards. See Note 11 of the accompanying notes to the unaudited condensed consolidated financial statements included elsewhere in this report for details on our share-based compensation expense.

Liquidity and Capital Resources

We have incurred losses since inception and have incurred negative cash flows from operations since inception through September 30, 2023, with the exception of certain 2019 periods for which we had positive cash flows from operations. As of September 30, 2023, we had an accumulated deficit of $1,074.9 million.

We have funded our operations to date principally from the sale of convertible preferred stock and common stock, and, to a lesser extent, revenue and proceeds from the Purchase Agreement. Pursuant to the Purchase Agreement entered into in September 2022, we received net cash proceeds of $124.4 million, after deducting issuance costs. We are also entitled to receive up to $125.0 million in subsequent installments as follows: (i) $75.0 million upon our request occurring no later than September 12, 2025 and (ii) $50.0 million upon our request in connection with certain permitted acquisitions occurring no later than September 12, 2025, in each case subject to certain funding conditions. As of September 30, 2023, we had cash, cash equivalents and marketable securities of $371.1 million.

We believe our existing cash, cash equivalents and marketable securities will be sufficient to fund our operating expenses and capital expenditure requirements through at least the next 12 months. We may consider raising additional capital to expand our business, to pursue strategic investments, to take advantage of financing opportunities or for other reasons.

If our available cash, cash equivalents and marketable securities balances and anticipated cash flows from operations are insufficient to satisfy our liquidity requirements, we may request an additional installment under the Purchase Agreement, seek to sell additional equity or convertible debt securities, enter into a 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 shareholders 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. This additional capital may not be available on reasonable terms, or at all.

We plan to utilize the existing cash, cash equivalents and marketable securities on hand primarily to fund our continued research and development initiatives for our drug discovery initiatives, our commercial and marketing activities associated with clonoSEQ and our continued investments in streamlining our laboratory operations. Cash in excess of immediate requirements is invested in accordance with our investment policy, primarily with a view to capital preservation and liquidity. Currently, our funds are held in money market funds and marketable securities consisting of United States government treasury and agency securities, corporate bonds and commercial paper.

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Adaptive Biotechnologies Corporation

While we may experience variability in revenue in the near term, over the long-term we expect revenue from our current and future products and services to grow. Accordingly, we expect our accounts receivable and inventory balances to increase. Our levels of accounts receivable may fluctuate relative to our revenue for a number of reasons, including the timing of milestone triggers and related payment of those milestones, as well as reductions in revenue derived from the upfront payment received under the Genentech Agreement and an increase in revenue generated from clinical customers, which may result in more billings in arrears as opposed to upfront payments. Any increase in accounts receivable and inventory may not be completely offset by increases in accounts payable and accrued expenses, which could result in greater working capital requirements.

Contractual Obligations

There have been no material changes outside the ordinary course of business to our contractual obligations and commitments as previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023.

See Note 7 and Note 8 of the accompanying notes to the unaudited condensed consolidated financial statements included elsewhere in this report for more information regarding our contractual obligations relating to lease agreements and the Purchase Agreement, respectively.

Cash Flows

The following table summarizes our uses and sources of cash for the nine months ended September 30, 2023 and 2022 (in thousands):

	Nine Months Ended September 30,
	2023			2022
Net cash used in operating activities	$	(129,392	)	$	(153,926	)
Net cash provided by investing activities		126,440			100,449
Net cash provided by financing activities		2,158			132,259

Operating Activities

Cash used in operating activities during the nine months ended September 30, 2023 was $129.4 million, which was primarily attributable to a net loss of $155.8 million and a net change in operating assets and liabilities of $42.7 million, partially offset by noncash share-based compensation of $47.4 million, noncash depreciation and amortization of $10.6 million, noncash lease expense of $5.5 million, noncash interest expense related to the Purchase Agreement of $4.6 million and inventory reserve expense of $0.9 million. The net change in operating assets and liabilities was primarily driven by a $23.2 million reduction in deferred revenue related primarily to revenue recognized from the Genentech Agreement, a $10.7 million reduction in accounts payable and accrued liabilities driven largely by the payout of our corporate bonus during the three months ended March 31, 2023, a $6.8 million increase in inventory, a $6.7 million decrease in operating lease right-of-use assets and liabilities and a $4.0 million increase in prepaid expenses and other current assets driven largely by an increase in prepaid software charges. These changes were partially offset by an $8.8 million decrease in accounts receivable, net primarily related to collections from our biopharmaceutical customers.

Cash used in operating activities during the nine months ended September 30, 2022 was $153.9 million, which was primarily attributable to a net loss of $160.2 million and a net change in our operating assets and liabilities of $61.1 million, partially offset by noncash share-based compensation of $41.2 million, noncash depreciation and amortization of $17.5 million, noncash lease expense of $5.4 million, a research and development inventory reserve charge of $2.6 million and noncash interest expense related to our Purchase Agreement of $0.7 million. The net change in our operating assets and liabilities was primarily due to a $44.0 million reduction in deferred revenue primarily related to revenue recognized from the Genentech Agreement, an increase in accounts receivable, net of $9.1 million, a reduction in accounts payable and accrued liabilities of $3.4 million driven largely by the payout of our corporate bonus during the three months ended March 31, 2022, a $3.0 million decrease in operating lease right-of-use assets and liabilities and an increase in inventory of $2.2 million.

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Adaptive Biotechnologies Corporation

Investing Activities

Cash provided by investing activities during the nine months ended September 30, 2023 was $126.4 million, which was primarily attributable to proceeds from maturities of marketable securities of $443.4 million, partially offset by purchases of marketable securities of $307.6 million and purchases of property and equipment of $9.4 million.

Cash provided by investing activities during the nine months ended September 30, 2022 was $100.4 million, which was primarily attributable to proceeds from maturities of marketable securities of $228.0 million, partially offset by purchases of marketable securities of $113.7 million and purchases of property and equipment of $13.8 million.

Financing Activities

Cash provided by financing activities during the nine months ended September 30, 2023 was $2.2 million, which was attributable to proceeds from the exercise of stock options.

Cash provided by financing activities during the nine months ended September 30, 2022 was $132.3 million, which was attributable to $124.7 million in proceeds from our Purchase Agreement entered into during September 2022, net of settled issuance costs, as well as $7.6 million in proceeds from the exercise of stock options.

Net Operating Loss Carryforwards

Utilization of our net operating loss (“NOL”) carryforwards and credits may be subject to a substantial annual limitation due to the ownership change limitations provided by Section 382 of the Internal Revenue Code of 1986 (“Section 382”) and similar state provisions. The annual limitation may result in the expiration of NOL carryforwards and credits before utilization. If there should be an ownership change, our ability to utilize our NOL carryforwards and credits could be limited. We have completed a Section 382 analysis for changes in ownership through December 31, 2020 and continue to monitor for changes that could trigger a limitation. Based on this analysis, we do not expect to have any permanent limitations on the utilization of our federal NOLs. Under the Tax Cuts and Jobs Act of 2017, federal NOLs incurred in 2018 and future years may be carried forward indefinitely, but the deductibility of such federal NOLs is subject to an annual limitation. NOLs generated prior to 2018 are eligible to be carried forward up to 20 years. Based on the available objective evidence, management determined that it was more likely than not that the net deferred tax assets would not be realizable as of December 31, 2022. Accordingly, management applied a full valuation allowance against net deferred tax assets as of December 31, 2022.

Critical Accounting Policies and Estimates

We have prepared the unaudited condensed consolidated financial statements in accordance with GAAP. Our preparation of these unaudited condensed consolidated financial statements requires us to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities and related disclosures at the date of the unaudited condensed consolidated financial statements, as well as revenue and expense recorded during the reporting periods. We evaluate our estimates and judgments on an ongoing basis. We base our estimates on historical experience and or other relevant assumptions that we believe to be reasonable under the circumstances. Estimates are used in several areas, including, but not limited to, estimates of progress to date for certain performance obligations and the transaction price for certain contracts with customers, imputing interest for the Purchase Agreement, the provision for income taxes, including related reserves, and the analysis of goodwill impairment, among others. These estimates generally involve complex issues and require judgments, involve the analysis of historical results and prediction of future trends, can require extended periods of time to resolve and are subject to change from period to period. Actual results may differ materially from management’s estimates.

While our significant accounting policies are described in more detail in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023, as well as in Note 2 of the accompanying notes to the unaudited condensed consolidated financial statements included elsewhere in this report, we believe the following accounting policies are critical to the judgments and estimates used in the preparation of the unaudited condensed consolidated financial statements:

•revenue recognition;

•imputing interest for the Purchase Agreement; and

•goodwill.

There have been no material changes to our critical accounting policies and estimates as previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023.

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Adaptive Biotechnologies Corporation

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk

We are exposed to market risk for changes in interest rates related primarily to our cash and cash equivalents and marketable securities. As of September 30, 2023, there have been no material changes to our market risks as previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023. We do not enter into investments for trading purposes and have not used any derivative financial instruments to manage our interest rate risk exposure.

Item 4. Controls and Procedures

Under the supervision and with the participation of our management, including our chief executive officer and chief financial officer, we evaluated the effectiveness of the design and operation of our disclosure controls and procedures pursuant to Rule 13a-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) as of the end of the period covered by this report. Based on that evaluation, our chief executive officer and chief financial officer have concluded that our disclosure controls and procedures were effective as of September 30, 2023. There was not any change in our internal control over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) during the three months ended September 30, 2023 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

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Adaptive Biotechnologies Corporation

PART II—OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may be subject to legal proceedings. We are not currently a party to or aware of any proceedings that we believe will have, individually or in the aggregate, a material adverse effect on our business, financial condition or results of operations. Regardless of outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources and other factors.

Item 1A. Risk Factors

Investing in our common stock involves a high degree of risk. We operate in a rapidly changing environment that involves a number of risks that could materially affect our business, financial condition or future results, some of which are beyond our control. In addition to the other information set forth in this report, the risks and uncertainties that we believe are most important for you to consider are discussed in Part I, Item 1A under the caption “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023. The risk factors may be important to understanding other statements in this report and should be read in conjunction with the unaudited condensed consolidated financial statements and related notes in this report. The occurrence of any single risk or any combination of risks could materially and adversely affect our business, operations, product pipeline, operating results, financial condition or liquidity, and consequently, the value of our securities. Further, additional risks that we currently do not know about or that we currently believe to be immaterial may also impair our business, financial condition, operating results and prospects. There have been no material changes to the risk factors described in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on February 14, 2023.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Not applicable.

Item 3. Defaults Upon Senior Securities

Not applicable.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

Not applicable.

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Adaptive Biotechnologies Corporation

Item 6. Exhibits

		Incorporated by Reference
Exhibit Number	Exhibit Title	Form	File No.	Exhibit	Filing Date	Filed/ Furnished with This Report
3.1	Amended and Restated Articles of Incorporation	8-K	001-38957	3.1	7/1/2019
3.2	Amended and Restated Bylaws	8-K	001-38957	3.2	7/1/2019
4.1	Seventh Amended and Restated Investors' Rights Agreement among the Registrant and certain of its shareholders, dated May 30, 2019	S-1	333-231838	4.1	5/30/2019
31.1	Certification of Principal Executive Officer pursuant to Rule 13a‑14(a) or Rule 15d‑14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X
31.2	Certification of Principal Financial Officer pursuant to Rule 13a‑14(a) or Rule 15d‑14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X
32.1	Certification 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					X
32.2	Certification 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					X
101.INS	Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.					X
101.SCH	Inline XBRL Taxonomy Extension Schema Document					X
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase Document					X
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase Document					X
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase Document					X
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase Document					X
104	Cover Page Interactive Data File (formatted in Inline XBRL and included in Exhibit 101)					X

36

Adaptive Biotechnologies Corporation

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.

	Adaptive Biotechnologies Corporation
Date: November 9, 2023	By:	/s/ Chad Robins
		Chad Robins
		Chief Executive Officer and Director (Principal Executive Officer)
Date: November 9, 2023	By:	/s/ Tycho Peterson
		Tycho Peterson
		Chief Financial Officer (Principal Financial Officer)

37

EX-31.1

Exhibit 31.1

CERTIFICATION OF THE CHIEF EXECUTIVE OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Chad Robins, certify that:

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

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

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

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

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

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

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

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

5.The registrant’s other certifying officer 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 9, 2023	By:	/s/ Chad Robins
		Chad Robins
		Chief Executive Officer
		(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF THE CHIEF FINANCIAL OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Tycho Peterson, certify that:

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

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

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

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

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

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

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

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

5.The registrant’s other certifying officer 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 9, 2023	By:	/s/ Tycho Peterson
		Tycho Peterson
		Chief Financial Officer
		(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Adaptive Biotechnologies Corporation (the “Company”) on Form 10-Q for the quarterly 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 to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; 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 9, 2023	By:	/s/ Chad Robins
		Chad Robins
		Chief Executive Officer
		(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 Adaptive Biotechnologies Corporation (the “Company”) on Form 10-Q for the quarterly 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 to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; 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 9, 2023	By:	/s/ Tycho Peterson
		Tycho Peterson
		Chief Financial Officer
		(Principal Financial 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

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 03, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Trading Symbol	ADPT
Entity Registrant Name	ADAPTIVE BIOTECHNOLOGIES CORPORATION
Entity Central Index Key	0001478320
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common stock, par value $0.0001 per share
Security Exchange Name	NASDAQ
Entity Common Stock, Shares Outstanding		144,772,751
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Interactive Data Current	Yes
Entity File Number	001-38957
Entity Tax Identification Number	27-0907024
Entity Address, Address Line One	1165 Eastlake Avenue East
Entity Address, City or Town	Seattle
Entity Address, State or Province	WA
Entity Address, Postal Zip Code	98109
City Area Code	(206)
Local Phone Number	659-0067
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	WA

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Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 88,713	$ 90,030
Short-term marketable securities (amortized cost of $282,669 and $412,282, respectively)	282,419	408,166
Accounts receivable, net	31,211	40,057
Inventory	19,490	14,453
Prepaid expenses and other current assets	13,404	9,440
Total current assets	435,237	562,146
Long-term assets
Property and equipment, net	76,749	83,447
Operating lease right-of-use assets	75,263	80,763
Restricted cash	2,921	2,398
Intangible assets, net	5,557	6,827
Goodwill	118,972	118,972
Other assets	2,983	2,064
Total assets	717,682	856,617
Current liabilities
Accounts payable	4,483	8,084
Accrued liabilities	10,151	12,424
Accrued compensation and benefits	10,648	15,935
Current portion of operating lease liabilities	9,482	9,230
Current portion of deferred revenue	55,340	64,115
Current portion of revenue interest liability, net	3,194
Total current liabilities	93,298	109,788
Long-term liabilities
Operating lease liabilities, less current portion	91,824	98,772
Deferred revenue, less current portion	44,194	58,599
Revenue interest liability, net, less current portion	126,729	125,360
Total liabilities	356,045	392,519
Commitments and contingencies (Note 9)
Shareholders’ equity
Preferred stock: $0.0001 par value, 10,000,000 shares authorized at September 30, 2023 and December 31, 2022; no shares issued and outstanding at September 30, 2023 and December 31, 2022
Common stock: $0.0001 par value, 340,000,000 shares authorized at September 30, 2023 and December 31, 2022; 144,772,751 and 143,105,002 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively	14	14
Additional paid-in capital	1,436,859	1,387,349
Accumulated other comprehensive loss	(250)	(4,116)
Accumulated deficit	(1,074,891)	(919,082)
Total Adaptive Biotechnologies Corporation shareholders’ equity	361,732	464,165
Noncontrolling interest	(95)	(67)
Total shareholders’ equity	361,637	464,098
Total liabilities and shareholders’ equity	$ 717,682	$ 856,617

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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Amortized cost of short-term marketable securities	$ 282,669	$ 412,282
Preferred stock par value	$ 0.0001	$ 0.0001
Preferred stock authorized	10,000,000	10,000,000
Preferred stock issued	0	0
Preferred stock outstanding	0	0
Common stock par value	$ 0.0001	$ 0.0001
Common stock authorized	340,000,000	340,000,000
Common stock issued	144,772,751	143,105,002
Common stock outstanding	144,772,751	143,105,002

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Condensed Consolidated Statements of Operations (Unaudited) - 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	$ 37,919	$ 47,830	$ 124,492	$ 130,110
Operating expenses
Cost of revenue	19,346	14,907	55,937	41,320
Research and development	28,533	35,658	93,371	110,534
Sales and marketing	20,493	21,513	66,673	71,887
General and administrative	20,075	20,755	63,208	66,099
Amortization of intangible assets	428	428	1,270	1,270
Total operating expenses	88,875	93,261	280,459	291,110
Loss from operations	(50,956)	(45,431)	(155,967)	(161,000)
Interest and other income, net	4,282	765	10,918	1,454
Interest expense	(3,652)	(653)	(10,788)	(653)
Net loss	(50,326)	(45,319)	(155,837)	(160,199)
Add: Net loss attributable to noncontrolling interest	26	38	28	136
Net loss attributable to Adaptive Biotechnologies Corporation	$ (50,300)	$ (45,281)	$ (155,809)	$ (160,063)
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	$ (0.35)	$ (0.32)	$ (1.08)	$ (1.12)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	144,704,868	142,928,654	144,208,940	142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	$ (0.35)	$ (0.32)	$ (1.08)	$ (1.12)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	144,704,868	142,928,654	144,208,940	142,334,342

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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (50,326)	$ (45,319)	$ (155,837)	$ (160,199)
Other comprehensive income (loss)
Change in unrealized gains and losses on investments	643	(171)	3,866	(4,834)
Comprehensive loss	(49,683)	(45,490)	(151,971)	(165,033)
Add: Comprehensive loss attributable to noncontrolling interest	26	38	28	136
Comprehensive loss attributable to Adaptive Biotechnologies Corporation	$ (49,657)	$ (45,452)	$ (151,943)	$ (164,897)

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Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Noncontrolling Interest
Beginning Balance at Dec. 31, 2021	$ 604,102	$ 14	$ 1,324,006	$ (1,137)	$ (718,891)	$ 110
Beginning Balance, Shares at Dec. 31, 2021		141,393,865
Issuance of common stock for cash upon exercise of stock options	7,562		7,562
Issuance of common stock for cash upon exercise of stock options, Shares		1,361,891
Vesting of restricted stock units		231,371
Share-based compensation expense	41,183		41,183
Other comprehensive income (loss)	(4,834)			(4,834)
Net loss	(160,199)				(160,063)	(136)
Ending Balance at Sep. 30, 2022	487,814	$ 14	1,372,751	(5,971)	(878,954)	(26)
Ending Balance, Shares at Sep. 30, 2022		142,987,127
Beginning Balance at Jun. 30, 2022	518,316	$ 14	1,357,763	(5,800)	(833,673)	12
Beginning Balance, Shares at Jun. 30, 2022		142,784,868
Issuance of common stock for cash upon exercise of stock options	846		846
Issuance of common stock for cash upon exercise of stock options, Shares		131,802
Vesting of restricted stock units		70,457
Share-based compensation expense	14,142		14,142
Other comprehensive income (loss)	(171)			(171)
Net loss	(45,319)				(45,281)	(38)
Ending Balance at Sep. 30, 2022	487,814	$ 14	1,372,751	(5,971)	(878,954)	(26)
Ending Balance, Shares at Sep. 30, 2022		142,987,127
Beginning Balance at Dec. 31, 2022	464,098	$ 14	1,387,349	(4,116)	(919,082)	(67)
Beginning Balance, Shares at Dec. 31, 2022		143,105,002
Issuance of common stock for cash upon exercise of stock options	$ 2,158		2,158
Issuance of common stock for cash upon exercise of stock options, Shares	367,405	367,405
Vesting of restricted stock units		1,300,344
Share-based compensation expense	$ 47,352		47,352
Other comprehensive income (loss)	3,866			3,866
Net loss	(155,837)				(155,809)	(28)
Ending Balance at Sep. 30, 2023	361,637	$ 14	1,436,859	(250)	(1,074,891)	(95)
Ending Balance, Shares at Sep. 30, 2023		144,772,751
Beginning Balance at Jun. 30, 2023	395,967	$ 14	1,421,506	(893)	(1,024,591)	(69)
Beginning Balance, Shares at Jun. 30, 2023		144,645,118
Issuance of common stock for cash upon exercise of stock options	17		17
Issuance of common stock for cash upon exercise of stock options, Shares		20,000
Vesting of restricted stock units		107,633
Share-based compensation expense	15,336		15,336
Other comprehensive income (loss)	643			643
Net loss	(50,326)				(50,300)	(26)
Ending Balance at Sep. 30, 2023	$ 361,637	$ 14	$ 1,436,859	$ (250)	$ (1,074,891)	$ (95)
Ending Balance, Shares at Sep. 30, 2023		144,772,751

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Operating activities
Net loss	$ (155,837)	$ (160,199)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation expense	15,569	14,364
Noncash lease expense	5,491	5,423
Share-based compensation expense	47,352	41,183
Intangible assets amortization	1,270	1,270
Investment amortization	(6,225)	1,825
Inventory reserve	931	2,638
Noncash interest expense	4,563	653
Other	165	(20)
Changes in operating assets and liabilities
Accounts receivable, net	8,798	(9,139)
Inventory	(6,815)	(2,212)
Prepaid expenses and other current assets	(3,964)	601
Accounts payable and accrued liabilities	(10,746)	(3,419)
Operating lease right-of-use assets and liabilities	(6,688)	(3,041)
Deferred revenue	(23,180)	(44,018)
Other	(76)	165
Net cash used in operating activities	(129,392)	(153,926)
Investing activities
Purchases of property and equipment	(9,399)	(13,807)
Purchases of marketable securities	(307,563)	(113,744)
Proceeds from maturities of marketable securities	443,402	228,000
Net cash provided by investing activities	126,440	100,449
Financing activities
Proceeds from exercise of stock options	2,158	7,568
Proceeds from revenue interest purchase agreement, net of issuance costs		124,691
Net cash provided by financing activities	2,158	132,259
Net (decrease) increase in cash, cash equivalents and restricted cash	(794)	78,782
Cash, cash equivalents and restricted cash at beginning of year	92,428	141,203
Cash, cash equivalents and restricted cash at end of period	91,634	219,985
Noncash investing and financing activities
Purchases of equipment included in accounts payable and accrued liabilities	1,308	2,619
Revenue interest purchase agreement issuance costs included in accounts payable and accrued liabilities		$ 316
Supplemental disclosure of cash flow information
Cash paid for interest	$ 7,089

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Organization and Description of Business

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Description of Business

1. Organization and Description of Business

Adaptive Biotechnologies Corporation (“we,” “us” or “our”) is a commercial-stage company advancing the field of immune medicine by harnessing the inherent biology of the adaptive immune system to transform the diagnosis and treatment of disease. We believe the adaptive immune system is nature’s most finely tuned diagnostic and therapeutic for most diseases, but the inability to decode it has prevented the medical community from fully leveraging its capabilities. Our immune medicine platform applies our proprietary technologies to read the diverse genetic code of a patient’s immune system and aims to understand precisely how the immune system detects and treats disease in that patient. We capture these insights in our dynamic clinical immunomics database, which is underpinned by computational biology and machine learning, and use them to develop and commercialize clinical products and services that we are tailoring to each individual patient. We have commercial products and services and a robust pipeline of clinical products and services that we are designing to diagnose, monitor and enable the treatment of diseases, such as cancer and autoimmune disorders.

We were incorporated in the State of Washington on September 8, 2009 under the name Adaptive TCR Corporation. On December 21, 2011, we changed our name to Adaptive Biotechnologies Corporation. We are headquartered in Seattle, Washington.

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Significant Accounting Policies

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Significant Accounting Policies

2. Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of Adaptive Biotechnologies Corporation, Adaptive Biotechnologies B.V., our wholly-owned subsidiary, and Digital Biotechnologies, Inc., a corporate subsidiary we have 70% ownership interest in. The remaining interest in Digital Biotechnologies, Inc., held by certain of our related parties and their related family trusts, are shown in the unaudited condensed consolidated financial statements as noncontrolling interest. All intercompany transactions and balances have been eliminated upon consolidation.

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the condensed consolidated financial statements, as well as the reported amounts of revenues and expenses during the periods presented. We base our estimates on historical experience and other relevant assumptions that we believe to be reasonable under the circumstances. Estimates are used in several areas including, but not limited to, estimates of progress to date for certain performance obligations and the transaction price for certain contracts with customers, share-based compensation, imputing interest for our revenue interest purchase agreement (the “Purchase Agreement”) that we entered into in September 2022, the provision for income taxes, including related reserves, and the analysis of goodwill impairment, among others. These estimates generally involve complex issues and require judgments, involve the analysis of historical results and prediction of future trends, can require extended periods of time to resolve and are subject to change from period to period. Actual results may differ materially from management’s estimates.

Unaudited Interim Condensed Consolidated Financial Statements

In our opinion, the accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information. These unaudited condensed consolidated financial statements include all adjustments necessary to fairly state our financial position and the results of our operations and cash flows for interim periods in accordance with GAAP. All such adjustments were of a normal, recurring nature. Interim-period results are not necessarily indicative of results of operations or cash flows for a full year or any subsequent interim period.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission (the “SEC”) on February 14, 2023.

Restricted Cash

We had a restricted cash balance of $2.9 million and $2.4 million as of September 30, 2023 and December 31, 2022, respectively. Our restricted cash primarily relates to certain balances we are required to maintain under lease arrangements for some of our property and facility leases.

Concentrations of Risk

We are subject to a concentration of risk from a limited number of suppliers, or in certain cases, single suppliers, for some of our laboratory instruments and materials. This risk is managed by targeting a quantity of surplus stock.

Cash, cash equivalents and marketable securities are financial instruments that potentially subject us to concentrations of credit risk. We invest in money market funds, United States (“U.S.”) government treasury and agency securities, corporate bonds and commercial paper with high-quality accredited financial institutions.

Significant customers are those that represent more than ten percent of our total revenue or accounts receivable, net balances for the periods and as of each condensed consolidated balance sheet date presented, respectively.

For each significant customer, revenue as a percentage of total revenue for the periods presented and accounts receivable, net as a percentage of total accounts receivable, net as of the dates presented were as follows:

	Revenue				Accounts Receivable, Net
	Three Months Ended September 30,		Nine Months Ended September 30,		September 30,	December 31,
	2023	2022	2023	2022	2023	2022
Customer A	*%	*%	*%	*%	*%	15.8%
Customer B	*	*	*	13.0	*	19.5
Customer C	*	*	*	*	10.1	*
Genentech, Inc. and Roche Group	23.2	45.1	30.0	38.2	*	*
* less than 10%

Revenue Recognition

For all revenue-generating contracts, we perform the following steps to determine the amount of revenue to be recognized: (1) identify the contract or contracts; (2) determine whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (3) measure the transaction price, including the constraint on variable consideration; (4) allocate the transaction price to the performance obligations based on estimated selling prices; and (5) recognize revenue when (or as) we satisfy each performance obligation.

We derive revenue by providing diagnostic and research services in our Immune Medicine and Minimal Residual Disease (“MRD”) market opportunities. Our Immune Medicine revenue consists of revenue generated from (1) providing sample testing services for our commercial research product, immunoSEQ, to biopharmaceutical customers and academic institutions; (2) our collaboration agreements with Genentech, Inc. (“Genentech”) and other biopharmaceutical customers in areas of drug and target discovery; and (3) providing our T-Detect COVID tests to clinical customers. Our MRD revenue consists of revenue generated from (1) providing our clonoSEQ report to clinical customers; (2) providing MRD sample testing services to biopharmaceutical customers and certain academic institutions, including investigator-led clinical trials; and (3) providing our clonoSEQ report or results to certain international laboratory sites through technology transfers.

For research customers who utilize either immunoSEQ or our MRD services, contracts typically include an amount billed in advance of services (“upfront”) and subsequent billings as sample results are delivered to the customer. Upfront amounts received are recorded as deferred revenue, which we recognize as revenue upon satisfaction of performance obligations. We have identified two typical performance obligations under the terms of our research service contracts: (1) the delivery of our immunoSEQ or MRD data for customer provided samples; and (2) related data analysis. We recognize revenue for both identified performance obligations as sample results are delivered to the customer. In periods where our sample estimates are reduced or a customer project is cancelled and, in either case, we have remaining related deferred revenue, we recognize revenue using a cumulative catch-up approach based on the proportion of samples delivered to date relative to the remaining samples expected to be delivered.

For agreements where we provide our clonoSEQ report to ordering physicians, we have identified one performance obligation: the delivery of a clonoSEQ report. We bill and receive payments for these transactions from commercial, government and medical institution payors. As payment from the respective payors may vary based on the various reimbursement rates and patient responsibilities, we consider the transaction price to be variable and record an estimate of the transaction price, subject to the constraint for variable consideration, as revenue at the time of delivery. The estimate of transaction price is based on historical and expected reimbursement rates with the various payors, which are monitored in subsequent periods and adjusted, as necessary, based on actual collection experience.

Regarding our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test report. This billing contemplates all necessary tests required during a patient’s treatment cycle, which is currently estimated at approximately four tests per patient, including the initial sequence identification test. Revenue recognition commences at the time the initial billable test report is delivered and is based upon cumulative tests delivered to date. We estimate the number of tests we expect to deliver over a patient’s treatment cycle based on historical testing frequencies for patients by indication. These estimates are subject to change as we develop more information about utilization over time. Any unrecognized revenue from the initial billable test is recorded as deferred revenue and is recognized either as we deliver our estimate of the remaining tests in a patient’s treatment cycle or when the likelihood becomes remote that a patient will receive additional testing.

The contract transaction price for agreements we enter into with biopharmaceutical customers to further develop and commercialize their therapeutics may consist of a combination of non-refundable upfront fees, separately priced MRD testing fees and milestone fees earned upon our customers’ achievement of certain regulatory approvals. Depending on the contract, these agreements include single or multiple performance obligations. Such performance obligations include providing services to support our customers’ therapeutic development efforts, including regulatory support for our technology intended to be utilized as part of our customers’ registrational trials, developing analytical plans for our data, participating on joint research committees, assisting in completing a regulatory submission and providing MRD testing services related to customer-provided samples for our customers' regulatory submissions. Generally, the support services, excluding MRD testing services, are not distinct within the context of the contract and thus are accounted for as a single performance obligation. The transaction price allocated to the respective performance obligations is estimated using an adjusted market assessment approach for the regulatory support services and a standalone selling price for the estimated MRD testing services. When MRD sample testing services are separately priced customer options, we assess if a material right exists and, if not, the customer option to purchase additional MRD sample testing services is not considered part of the contract. We recognize revenue related to MRD testing services over time using an output method based on the proportion of sample results delivered relative to the total amount of sample results expected to be delivered, when expected to be a faithful depiction of progress. We use the same method to recognize the regulatory support services. When an output method based on the proportion of sample results delivered is not expected to be a faithful depiction of progress, we utilize an input method using a cost-based model based on estimates of effort completed. Selecting the measure of progress and estimating progress to date requires significant judgment. Except for any non-refundable upfront fees, the other forms of compensation represent variable consideration. At contract inception, we fully constrain any consideration related to regulatory milestones, as the achievement of such milestones is subject to third-party regulatory approval and the customers’ own submission decision-making. Variable consideration related to regulatory milestones is estimated using the most likely amount method, where variable consideration is constrained until it is probable that a significant reversal of cumulative revenue will not occur. Milestone payments for regulatory approvals, which are not within our customers’ control, are not considered probable of being achieved until those approvals are received. Determining whether regulatory milestone payments are probable is an area that requires significant judgment. In making this assessment, we evaluate scientific, clinical, regulatory and other risks, as well as the level of effort and investment required to achieve the respective milestone.

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Revenue

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Revenue

3. Revenue

We disaggregate our revenue from contracts with customers by market opportunity and type of arrangement, as we believe this best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors.

The following table presents our disaggregated revenue for the periods presented (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Immune Medicine revenue
Service revenue	$	5,238	$	6,559	$	17,848	$	20,968
Collaboration revenue		8,013		21,320		34,667		50,105
Total Immune Medicine revenue		13,251		27,879		52,515		71,073
MRD revenue
Service revenue		24,668		19,951		71,977		55,037
Regulatory milestone revenue		—		—		—		4,000
Total MRD revenue		24,668		19,951		71,977		59,037
Total revenue	$	37,919	$	47,830	$	124,492	$	130,110

During the three months ended September 30, 2023, we recognized $1.9 million in MRD service revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote and from cancelled customer contracts. During the three months ended September 30, 2022, we recognized $1.1 million in MRD service revenue related to cancelled customer contracts, Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote and changes in estimates of total samples to be provided under certain of our agreements.

During the nine months ended September 30, 2023, we recognized $4.6 million in revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote, cancelled customer contracts and changes in estimates of total samples to be provided under certain of our agreements, $0.4 million of which was recognized as Immune Medicine service revenue and $4.2 million of which was recognized as MRD service revenue. During the nine months ended September 30, 2022, we recognized $4.0 million in revenue related to Medicare reimbursements resulting from our determination that the likelihood of additional testing for specific patients was remote, cancelled customer contracts and changes in estimates of total samples to be provided under certain of our agreements, $0.3 million of which was recognized as Immune Medicine service revenue and $3.7 million of which was recognized as MRD service revenue.

As of September 30, 2023, we could receive up to an additional $399.5 million in milestone payments in future periods if certain regulatory approvals are obtained by our customers’ therapeutics in connection with MRD data generated from our MRD product.

Genentech Collaboration Agreement

In December 2018, we entered into a worldwide collaboration and license agreement with Genentech (the “Genentech Agreement”) to leverage our capability to develop cellular therapies in oncology. Subsequent to receipt of regulatory approval in January 2019, we received a non-refundable, upfront payment of $300.0 million in February 2019 and may be eligible to receive more than $1.8 billion over time, including payments of up to $75.0 million upon the achievement of specified regulatory milestones ($10.0 million of which was achieved in May 2023), up to $300.0 million upon the achievement of specified development milestones and up to $1,430.0 million upon the achievement of specified commercial milestones. In addition, we are separately able to receive tiered royalties at a rate ranging from the mid-single digits to the mid-teens on aggregate worldwide net sales of products arising from the strategic collaboration, subject to certain reductions, with aggregate minimum floors. Under the Genentech Agreement, we are pursuing two product development pathways for novel T cell immunotherapies in which Genentech intends to use T cell receptors (“TCRs”) screened by our immune medicine platform to engineer and manufacture cellular medicines:

•Shared Products. The shared products will use “off-the-shelf” TCRs identified against cancer antigens shared among patients (“Shared Products”).

•Personalized Product. The personalized product will use patient-specific TCRs identified by real-time screening of TCRs against cancer antigens in each patient (“Personalized Product”).

Under the terms of the Genentech Agreement, we granted Genentech exclusive worldwide licenses to develop and commercialize TCR-based cellular therapies in the field of oncology, including licenses to existing shared antigen data packages. Additionally, Genentech has the right to determine which product candidates to further develop for commercialization purposes. We determined that this arrangement meets the criteria set forth in Accounting Standards Codification (“ASC”) Topic 808, Collaborative Arrangements (“ASC 808”), because both parties are active participants in the activity and are exposed to significant risks and rewards depending on the activity’s commercial failure or success. Because ASC 808 does not provide guidance on how to account for the activities under a collaborative arrangement, we applied the guidance in ASC Topic 606, Revenue from Contracts with Customers (“ASC 606”) to account for the activities related to the Genentech Agreement.

In applying ASC 606, we identified the following performance obligations at the inception of the agreement:

1.License to utilize on an exclusive basis all TCR-specific platform intellectual property to develop and commercialize any licensed products in the field of oncology.

2.License to utilize all data and information within each shared antigen data package and any other know-how disclosed by us to Genentech in oncology.

3.License to utilize all private antigen TCR product data in connection with research and development activities in the field of use.

4.License to existing shared antigen data packages.

5.Research and development services for Shared Products development, including expansion of shared antigen data packages.

6.Research and development services for private product development.

7.Obligations to participate on various joint research, development and project committees.

We determined that none of the licenses, research and development services or obligations to participate on various committees were distinct within the context of the contract, given such rights and activities were highly interrelated and there was substantial additional research and development to further develop the licenses. We considered factors such as the stage of development of the respective existing antigen data packages, the subsequent development that would be required to both identify and submit a potential target for investigational new drug acceptance under both product pathways and the variability in research and development pathways given Genentech’s control of product commercialization. Specifically, under the Genentech Agreement, Genentech is not required to pursue development or commercialization activities pertaining to both product pathways and may choose to proceed with one or the other. Accordingly, we determined that all of the identified performance obligations were attributable to one general performance obligation, which is to further the development of our TCR-specific platform, including data packages, and continue to make our TCR identification process available to Genentech to pursue either product pathway.

Separately, we have a responsibility to Genentech to enter into a supply and manufacturing agreement for patient-specific TCRs as it pertains to any Personalized Product therapeutic. We determined this was an option right of Genentech should they pursue commercialization of a Personalized Product therapy. Because of the uncertainty resulting from the early stage of development, the novel approach of our collaboration with Genentech and our rights to future commercial milestones and royalty payments, we determined that this option right was not a material right that should be accounted for at inception. As such, we will account for the supply and manufacturing agreement when entered into between the parties.

We determined the initial transaction price shall be made up of only the $300.0 million upfront, non-refundable payment, as all potential regulatory and development milestone payments were probable of significant revenue reversal given their achievement was highly dependent on factors outside our control. As a result, these payments were fully constrained and were not included in the initial transaction price. In May 2023, one of the regulatory milestones was achieved, resulting in a $10.0 million addition to the transaction price, $7.7 million of which was recognized as revenue in the three months ended June 30, 2023, with the remainder included in deferred revenue to be recognized as revenue over the remaining research and development period. We continue to exclude the commercial milestones and potential royalties from the transaction price, as those items relate predominantly to the license rights granted to Genentech and will be assessed when and if such events occur.

As there are potential substantive developments necessary, which Genentech may be able to direct, we determined that we would apply a proportional performance model to recognize revenue for our performance obligation. We measure proportional performance using an input method based on costs incurred relative to the total estimated costs of research and development efforts to pursue both the Shared Products and Personalized Product pathways. When any of the potential regulatory and development milestones are no longer fully constrained and are included in the transaction price, such amounts will be recognized using the cumulative catch-up method based on proportional performance at such time. We currently expect to recognize revenue generated from the Genentech Agreement over a period of approximately eight to nine years from the effective date. This estimate of the research and development period considers pursuit options of development activities supporting both the Shared Products and Personalized Product, but may be reduced or increased based on the various activities as directed by the joint committees, decisions made by Genentech, regulatory feedback or other factors not currently known.

In total, we recognized $8.0 million and $20.4 million in Immune Medicine collaboration revenue during the three months ended September 30, 2023 and 2022, respectively, and $34.7 million and $46.5 million in Immune Medicine collaboration revenue during the nine months ended September 30, 2023 and 2022, respectively, related to the Genentech Agreement. Costs related to the Genentech Agreement are included in research and development expenses.

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Deferred Revenue

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Deferred Revenue

4. Deferred Revenue

Deferred revenue from the Genentech Agreement represents $21.2 million and $41.4 million of the current and non-current deferred revenue balances, respectively, as of September 30, 2023 and $31.8 million and $55.5 million of the current and non-current deferred revenue balances, respectively, as of December 31, 2022. We expect our current deferred revenue to be recognized as revenue within 12 months. We expect the majority of our non-current deferred revenue to be recognized as revenue over a period of approximately four years from September 30, 2023. This period of time represents an estimate of the research and development period to develop cellular therapies in oncology, which may be reduced or increased based on various research and development activities.

Changes in deferred revenue during the nine months ended September 30, 2023 were as follows (in thousands):

Deferred revenue balance at December 31, 2022	$	122,714
Additions to deferred revenue during the period		30,693
Revenue recognized during the period		(53,873	)
Deferred revenue balance at September 30, 2023	$	99,534

As of September 30, 2023, $41.2 million was recognized as revenue that was included in the deferred revenue balance at December 31, 2022.

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Fair Value Measurements

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Fair Value Measurements

5. Fair Value Measurements

The following tables set forth the fair values of financial assets as of September 30, 2023 and December 31, 2022 that were measured at fair value on a recurring basis (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	63,981	$	—	$	—	$	63,981
Commercial paper		—		2,871		—		2,871
U.S. government treasury and agency securities		—		273,311		—		273,311
Corporate bonds		—		6,237		—		6,237
Total financial assets	$	63,981	$	282,419	$	—	$	346,400

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	38,502	$	—	$	—	$	38,502
Commercial paper		—		9,969		—		9,969
U.S. government treasury securities		—		385,848		—		385,848
Corporate bonds		—		12,349		—		12,349
Total financial assets	$	38,502	$	408,166	$	—	$	446,668

Level 1 securities include highly liquid money market funds, for which we measure the fair value based on quoted prices in active markets for identical assets or liabilities. Level 2 securities consist of U.S. government treasury and agency securities, corporate bonds and commercial paper, and are valued based on recent trades of securities in inactive markets or on quoted market prices of similar instruments and other significant inputs derived from or corroborated by observable market data.

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Investments

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Investments

6. Investments

Available-for-sale investments consisted of the following as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	2,871	$	—	$	—		$	2,871
U.S. government treasury and agency securities		273,561		1		(251	)		273,311
Corporate bonds		6,237		—		—			6,237
Total short-term marketable securities	$	282,669	$	1	$	(251	)	$	282,419

	December 31, 2022
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	9,969	$	—	$	—		$	9,969
U.S. government treasury securities		389,898		14		(4,064	)		385,848
Corporate bonds		12,415		—		(66	)		12,349
Total short-term marketable securities	$	412,282	$	14	$	(4,130	)	$	408,166

All the U.S. government treasury and agency securities, corporate bonds and commercial paper designated as short-term marketable securities have an effective maturity date that is equal to or less than one year from the respective condensed consolidated balance sheet date. Those that are designated as long-term marketable securities have an effective maturity date that is more than one year from the respective condensed consolidated balance sheet date.

Accrued interest receivable is excluded from the amortized cost and estimated fair value of our marketable securities. Accrued interest receivable of $1.1 million and $0.8 million was presented separately within the prepaid expenses and other current assets balance on the unaudited condensed consolidated balance sheet as of September 30, 2023 and on the condensed consolidated balance sheet as of December 31, 2022, respectively.

The following table presents the gross unrealized holding losses and fair values for investments in an unrealized loss position, and the length of time individual securities have been in a continuous loss position, as of September 30, 2023 (in thousands):

	Less Than 12 Months					12 Months Or Greater
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. government treasury and agency securities	$	222,795	$	(169	)	$	19,957	$	(82	)
Total available-for-sale securities	$	222,795	$	(169	)	$	19,957	$	(82	)

We periodically review our available-for-sale securities to assess for credit impairment. Some of the factors considered in assessing impairment include the extent to which the fair value is less than the amortized cost basis, adverse conditions related to the security, an industry or geographic area, changes to security ratings or sector credit ratings and other relevant market data.

As of September 30, 2023, we did not intend, nor were we more likely than not to be required, to sell our available-for-sale investments before the recovery of their amortized cost basis, which may be maturity. Based on our assessment, we concluded all impairment as of September 30, 2023 to be due to factors other than credit loss, such as changes in interest rates. A credit allowance was not recognized and the impairment of our available-for-sale securities was recorded in other comprehensive loss.

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Leases

9 Months Ended

Sep. 30, 2023

Lessee Disclosure [Abstract]

Leases

7. Leases

We have operating lease agreements for laboratory, office and warehouse facilities in Seattle, Washington, Bothell, Washington, South San Francisco, California and New York City, New York. As of September 30, 2023, we were not party to any finance leases.

The following table reconciles our undiscounted operating lease cash flows to our operating lease liabilities, less current portion balance as of September 30, 2023 (in thousands):

2023 (excluding the nine months ended September 30, 2023)	$	3,678
2024		13,692
2025		14,098
2026		12,330
2027		11,944
Thereafter		69,244
Total undiscounted lease payments		124,986
Less: Imputed interest rate		(23,680	)
Total operating lease liabilities		101,306
Less: Current portion		(9,482	)
Operating lease liabilities, less current portion	$	91,824

During the nine months ended September 30, 2023, cash paid for amounts included in the measurement of lease liabilities was $10.3 million. During the nine months ended September 30, 2022, cash paid for amounts included in the measurement of lease liabilities was $6.9 million, net of $4.0 million of cash received for tenant improvement allowances.

We have $2.1 million in letters of credit with one of our financial institutions in connection with certain of our leases.

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Revenue Interest Purchase Agreement

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Revenue Interest Purchase Agreement

8. Revenue Interest Purchase Agreement

In September 2022, we entered into the Purchase Agreement with OrbiMed Royalty & Credit Opportunities IV, LP (“OrbiMed”), an affiliate of OrbiMed Advisors LLC, as collateral agent and administrative agent for the purchasers party thereto (the “Purchasers”). Pursuant to the Purchase Agreement, we received $125.0 million from the Purchasers at closing, less certain transaction expenses. We are also entitled to receive up to $125.0 million in subsequent installments as follows: (i) $75.0 million upon our request occurring no later than September 12, 2025 and (ii) $50.0 million upon our request in connection with certain permitted acquisitions occurring no later than September 12, 2025, in each case subject to certain funding conditions.

As consideration for such payments, the Purchasers have a right to receive certain revenue interests (the “Revenue Interests”) from us based on a percentage of all GAAP revenue. Payments in respect of the Revenue Interests shall be made quarterly within 45 days following the end of each fiscal quarter (each, a “Revenue Interest Payment”).

Accounting Treatment

We accounted for the transaction as debt recorded at amortized cost using the effective interest rate method.

To determine the amortization of the Purchase Agreement obligation, we are required to estimate the amount and timing of future Revenue Interest Payments based on our estimate of the timing and amount of future revenues and calculate an effective interest rate which will amortize the obligation to zero over the amortization period. The calculated effective interest rate as of September 30, 2023 was 11.3%.

In connection with the Purchase Agreement, we incurred debt issuance costs of $0.6 million. Debt issuance costs have been recorded to debt and are being amortized over the estimated term of the debt using the effective interest method, adjusted on a prospective basis for changes in the underlying assumptions and inputs.

The assumptions used in determining the expected repayment term of the obligation and amortization period of the issuance costs requires that we make estimates that could impact the short- and long-term classification of these costs, as well as the period over which these costs will be amortized. We periodically assess the amount and timing of expected Revenue Interest Payments based on internal forecasts. To the extent such payments are greater or less than our initial estimates or the timing of such payments is materially different than our original estimates, we will prospectively adjust the amortization of the revenue interest liability and the effective interest rate.

The following table sets forth the revenue interest liability, net activity during the nine months ended September 30, 2023 (in thousands):

Revenue interest liability, net at December 31, 2022	$	125,360
Interest expense		3,531
Revenue interest payable		(1,883	)
Revenue interest liability, net at March 31, 2023		127,008
Interest expense		3,605
Revenue interest payable		(2,446	)
Revenue interest liability, net at June 30, 2023		128,167
Interest expense		3,652
Revenue interest payable		(1,896	)
Revenue interest liability, net at September 30, 2023		129,923
Less: Current portion at September 30, 2023		(3,194	)
Revenue interest liability, net, less current portion at September 30, 2023	$	126,729

Revenue interest payable of $1.9 million and $2.8 million was included within the accounts payable balance on the unaudited condensed consolidated balance sheet as of September 30, 2023 and on the condensed consolidated balance sheet as of December 31, 2022, respectively.

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2023

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

9. Commitments and Contingencies

Legal Proceedings

We are subject to claims and assessments from time to time in the ordinary course of business. We will accrue a liability for such matters when it is probable that a liability has been incurred and the amount can be reasonably estimated. When only a range of possible loss can be established, the most probable amount in the range is accrued. If no amount within this range is a better estimate than any other amount within the range, the minimum amount in the range is accrued. We were not party to any material legal proceedings as of September 30, 2023.

Indemnification Agreements

In the ordinary course of business, we may provide indemnification of varying scope and terms to vendors, lessors, customers and other parties with respect to certain matters including, but not limited to, losses arising out of breach of our agreements with them or from intellectual property infringement claims made by third parties. In addition, we have entered into indemnification agreements with members of our board of directors and certain of our executive officers that will require us to indemnify them against certain liabilities that may arise by reason of their status or service as directors or officers. The maximum potential amount of future payments that we could be required to make under these indemnification agreements is, in many cases, unlimited. We have not incurred any material costs as a result of such indemnifications and are not currently aware of any indemnification claims.

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Shareholders' Equity

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Shareholders' Equity

10. Shareholders’ Equity

Common Stock

Our common stock has no preferences or privileges and is not redeemable. Holders of our common stock are entitled to one vote for each share of common stock held. The holders of record of outstanding shares of common stock shall be entitled to receive, when, as and if declared, out of funds legally available, such cash and other dividends as may be declared from time to time.

Our 2019 Equity Incentive Plan (the “2019 Plan”) provides for annual increases in the number of shares that may be issued under the 2019 Plan on January 1, 2020 and on each subsequent January 1, thereafter, by a number of shares equal to the lesser of (a) 5% of the number of shares of common stock issued and outstanding on the immediately preceding December 31, or (b) an amount determined by our board of directors.

Furthermore, our Employee Stock Purchase Plan (the “ESPP”) provides for annual increases in the number of shares available for issuance under our ESPP on January 1, 2020 and on each January 1, thereafter, by a number of shares equal to the smallest of (a) 1% of the number of shares of common stock issued and outstanding on the immediately preceding December 31, or (b) an amount determined by our board of directors.

Effective January 1, 2023, our 2019 Plan and ESPP reserves increased by 7,155,250 shares and 1,431,050 shares, respectively.

As of September 30, 2023, we had reserved shares of common stock for the following:

Shares issuable upon the exercise of outstanding stock options granted	13,424,786
Shares issuable upon the vesting of outstanding restricted stock units granted and the maximum outstanding market-based restricted stock units eligible to be earned	11,851,128
Shares available for future grant under the 2019 Equity Incentive Plan	14,790,548
Shares available for future grant under the Employee Stock Purchase Plan	4,235,348
Total shares of common stock reserved for future issuance	44,301,810

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Equity Incentive Plans

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Equity Incentive Plans

11. Equity Incentive Plans

2009 Equity Incentive Plan

We adopted an equity incentive plan in 2009 (the “2009 Plan”) that provided for the issuance of incentive and nonqualified common stock options and other share-based awards for employees, directors and consultants. Under the 2009 Plan, the exercise price for incentive and nonqualified stock options were not to be less than the fair market value of our common stock at the date of grant. Stock options granted under this plan expire no later than ten years from the grant date and vesting was established at the time of grant. Pursuant to the terms of the 2019 Plan, any shares subject to outstanding stock options originally granted under the 2009 Plan that terminate, expire or lapse for any reason without the delivery of shares to the holder thereof shall become available for issuance pursuant to awards granted under the 2019 Plan. While no shares are available for future grant under the 2009 Plan, it continues to govern outstanding equity awards granted thereunder.

2019 Equity Incentive Plan

The 2019 Plan became effective immediately prior to the closing of our initial public offering in July 2019. The 2019 Plan provides for the issuance of awards in the form of stock options and other share-based awards for employees, directors and consultants. Under the 2019 Plan, the stock option exercise price per share shall not be less than the fair market value of a share of stock on the effective date of grant, as defined by the 2019 Plan, unless explicitly qualified under the provisions of Section 409A or Section 424(a) of the Internal Revenue Code of 1986. Additionally, unless otherwise specified, stock options granted under this plan expire no later than ten years from the grant date and vesting is established at the time of grant. Except for certain stock option and restricted stock unit grants made to non-employee directors, stock options and restricted stock units granted under the 2019 Plan generally vest over a four-year period, subject to continuous service through each applicable vesting date. As of September 30, 2023, we had 34,913,524 shares of common stock authorized for issuance under the 2019 Plan.

Changes in shares available for grant during the nine months ended September 30, 2023 were as follows:

	Shares Available for Grant
Shares available for grant at December 31, 2022		14,581,975
2019 Equity Incentive Plan reserve increase effective January 1, 2023		7,155,250
Stock options and restricted stock units granted and the maximum market-based restricted stock units granted eligible to be earned		(9,868,290	)
Stock options and restricted stock units forfeited or expired		2,921,613
Shares available for grant at September 30, 2023		14,790,548

Stock Options

Stock option activity under the 2009 Plan and 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Shares Subject to Outstanding Stock Options			Weighted-Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)
Stock options outstanding at December 31, 2022		13,520,997		$	16.88
Stock options granted		1,612,032			8.46
Stock options forfeited		(1,000,780	)		16.99
Stock options expired		(340,058	)		27.34
Stock options exercised		(367,405	)		5.87
Stock options outstanding at September 30, 2023		13,424,786		$	15.90	$	1,108
Stock options vested and exercisable at September 30, 2023		9,145,151		$	15.87	$	1,108

The weighted-average remaining contractual life for stock options outstanding as of September 30, 2023 was 6.3 years. The weighted-average remaining contractual life for vested and exercisable stock options as of September 30, 2023 was 5.2 years.

Restricted Stock Units

Restricted stock unit activity under the 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Restricted Stock Units Outstanding			Weighted-Average Grant Date Fair Value per Share
Nonvested restricted stock units outstanding at December 31, 2022		5,981,755		$	14.11
Restricted stock units granted		6,837,818			8.36
Restricted stock units forfeited		(1,580,775	)		11.37
Restricted stock units vested		(1,300,344	)		14.80
Nonvested restricted stock units outstanding at September 30, 2023		9,938,454		$	10.49

Market-Based Restricted Stock Units

In addition to the restricted stock units described above, our board of directors approved awards of market-based restricted stock units to our chief executive officer and chief scientific officer in March 2023. The shares of common stock that may be earned under the awards, each ranging from zero shares to 709,220 shares, are calculated based upon our total shareholder return during a three-year performance period as measured against that of the group of companies comprising the S&P Biotechnology Select Industry Index as of the grant date, subject to certain adjustments to such index group. Except as expressly provided in the terms of each award's agreement, vesting is subject to the respective grantee's continuous service through the end of the three-year performance period. These market-based restricted stock units, along with those granted to our chief executive officer in March 2022, under which zero shares to 494,234 shares may be earned, remain outstanding as of September 30, 2023.

Grant Date Fair Value of Stock Options, Restricted Stock Units and Market-Based Restricted Stock Units Granted

The estimated grant date fair values of stock options granted during the nine months ended September 30, 2023 and 2022 were estimated using the Black-Scholes option-pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Fair value of common stock	$8.46		$7.30 - $14.95
Expected term (in years)	5.27 - 6.08		5.27 - 6.08
Risk-free interest rate	4.2% - 4.3%		1.7% - 3.0%
Expected volatility	71.2% - 71.6%		68.2% - 71.0%
Expected dividend yield		—		—

The determination of the grant date fair value of stock options granted using a Black-Scholes option-pricing model is affected by the fair value of our common stock, as well as assumptions regarding a number of variables that are subjective and generally require judgment to determine. The valuation assumptions were determined as follows:

Fair value of common stock—The fair value of each share of common stock is based on the closing price of our common stock on the date of grant, or other relevant determination date, as reported on The Nasdaq Global Select Market.

Expected term—The expected term of stock options granted to employees and non-employee directors is determined using the “simplified” method, as illustrated in ASC Topic 718, Compensation—Stock Compensation, as we do not have sufficient exercise history to determine a better estimate of expected term. Under this approach, the expected term is based on the midpoint between the vesting date and the end of the contractual term of the stock option.

Risk-free interest rate—We utilize a risk-free interest rate in the option valuation model based on U.S. Treasury zero-coupon issues with remaining terms similar to the expected terms of the stock options.

Expected volatility—As we do not have sufficient trading history for our common stock, expected volatility is based on the historical volatility of our publicly traded industry peers utilizing a period of time consistent with our estimate of expected term.

Expected dividend yield—We do not anticipate paying any cash dividends in the foreseeable future and, therefore, use an expected dividend yield of zero in the option valuation model.

The weighted-average grant date fair value per share of stock options granted during the nine months ended September 30, 2023 and 2022 was $5.61 and $7.36, respectively.

The grant date fair value of restricted stock units granted is based on the closing price of our common stock on the date of grant, or other relevant determination date, as reported on The Nasdaq Global Select Market. The weighted-average grant date fair value per share of restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $8.36 and $11.72, respectively.

The weighted-average grant date fair value per share of the market-based restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $13.82 and $18.89, respectively, and was determined using a Monte Carlo valuation model, which uses assumptions such as volatility, risk-free interest rate and dividend estimated for the respective performance periods. The weighted-average grant date fair value per share of the target payout level of the market-based restricted stock units outstanding as of September 30, 2023, 956,337 shares, was $15.13. The aggregate share-based compensation expense of the market-based restricted stock units granted during the nine months ended September 30, 2023 and 2022 was $9.8 million and $4.7 million, respectively, and is recognized on a straight-line basis over the respective grants' three-year performance periods, which are also the requisite service periods. Attainment of each grant's respective market condition and the number of shares earned and vested does not impact the related share-based compensation expense recognized. Share-based compensation expense will be reversed only if the respective grantee does not provide continuous service through the respective performance period for reasons other than those expressly provided in the terms of the respective award.

The compensation cost related to stock options, restricted stock units and market-based restricted stock units for the three and nine months ended September 30, 2023 and 2022, respectively, are included on the unaudited condensed consolidated statements of operations as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of revenue	$	917	$	1,058	$	3,272	$	2,807
Research and development		5,187		4,382		15,267		13,370
Sales and marketing		3,241		3,357		11,111		10,170
General and administrative		5,991		5,345		17,702		14,836
Total share-based compensation expense	$	15,336	$	14,142	$	47,352	$	41,183

As of September 30, 2023, unrecognized share-based compensation expense and the remaining weighted-average recognition period were as follows:

	Unrecognized Share-Based Compensation Expense (in thousands)		Remaining Weighted-Average Recognition Period (in years)
Nonvested stock options	$	40,916		2.08
Nonvested restricted stock units		85,893		2.90
Nonvested market-based restricted stock units		10,157		2.21

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Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders

12. Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders

The following table sets forth the computation of basic and diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively (in thousands, except share and per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted		144,704,868			142,928,654			144,208,940			142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted	$	(0.35	)	$	(0.32	)	$	(1.08	)	$	(1.12	)

Given the loss position for all periods presented, basic net loss per share attributable to our common shareholders is the same as diluted net loss per share attributable to our common shareholders, as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive.

The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively, as they had an anti-dilutive effect:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Stock options outstanding		13,806,283		13,996,403		14,054,478		13,984,427
Nonvested restricted stock units outstanding		10,301,308		5,486,711		9,575,868		4,490,170
Maximum nonvested market-based restricted stock units outstanding eligible to be earned		1,912,674		494,234		1,580,146		381,990
Total		26,020,265		19,977,348		25,210,492		18,856,587

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Basis of Presentation and Principles of Consolidation

Basis of Presentation and Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of Adaptive Biotechnologies Corporation, Adaptive Biotechnologies B.V., our wholly-owned subsidiary, and Digital Biotechnologies, Inc., a corporate subsidiary we have 70% ownership interest in. The remaining interest in Digital Biotechnologies, Inc., held by certain of our related parties and their related family trusts, are shown in the unaudited condensed consolidated financial statements as noncontrolling interest. All intercompany transactions and balances have been eliminated upon consolidation.

Use of Estimates

Use of Estimates

The preparation of condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities and the related disclosures at the date of the condensed consolidated financial statements, as well as the reported amounts of revenues and expenses during the periods presented. We base our estimates on historical experience and other relevant assumptions that we believe to be reasonable under the circumstances. Estimates are used in several areas including, but not limited to, estimates of progress to date for certain performance obligations and the transaction price for certain contracts with customers, share-based compensation, imputing interest for our revenue interest purchase agreement (the “Purchase Agreement”) that we entered into in September 2022, the provision for income taxes, including related reserves, and the analysis of goodwill impairment, among others. These estimates generally involve complex issues and require judgments, involve the analysis of historical results and prediction of future trends, can require extended periods of time to resolve and are subject to change from period to period. Actual results may differ materially from management’s estimates.

Unaudited Interim Condensed Consolidated Financial Statements

Unaudited Interim Condensed Consolidated Financial Statements

In our opinion, the accompanying unaudited condensed consolidated financial statements have been prepared in accordance with GAAP for interim financial information. These unaudited condensed consolidated financial statements include all adjustments necessary to fairly state our financial position and the results of our operations and cash flows for interim periods in accordance with GAAP. All such adjustments were of a normal, recurring nature. Interim-period results are not necessarily indicative of results of operations or cash flows for a full year or any subsequent interim period.

The accompanying unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes included in our Annual Report on Form 10-K for the year ended December 31, 2022 filed with the Securities and Exchange Commission (the “SEC”) on February 14, 2023.

Restricted Cash

Restricted Cash

We had a restricted cash balance of $2.9 million and $2.4 million as of September 30, 2023 and December 31, 2022, respectively. Our restricted cash primarily relates to certain balances we are required to maintain under lease arrangements for some of our property and facility leases.

Concentrations of Risk

Concentrations of Risk

We are subject to a concentration of risk from a limited number of suppliers, or in certain cases, single suppliers, for some of our laboratory instruments and materials. This risk is managed by targeting a quantity of surplus stock.

Cash, cash equivalents and marketable securities are financial instruments that potentially subject us to concentrations of credit risk. We invest in money market funds, United States (“U.S.”) government treasury and agency securities, corporate bonds and commercial paper with high-quality accredited financial institutions.

Significant customers are those that represent more than ten percent of our total revenue or accounts receivable, net balances for the periods and as of each condensed consolidated balance sheet date presented, respectively.

For each significant customer, revenue as a percentage of total revenue for the periods presented and accounts receivable, net as a percentage of total accounts receivable, net as of the dates presented were as follows:

	Revenue				Accounts Receivable, Net
	Three Months Ended September 30,		Nine Months Ended September 30,		September 30,	December 31,
	2023	2022	2023	2022	2023	2022
Customer A	*%	*%	*%	*%	*%	15.8%
Customer B	*	*	*	13.0	*	19.5
Customer C	*	*	*	*	10.1	*
Genentech, Inc. and Roche Group	23.2	45.1	30.0	38.2	*	*
* less than 10%

Revenue Recognition

Revenue Recognition

For all revenue-generating contracts, we perform the following steps to determine the amount of revenue to be recognized: (1) identify the contract or contracts; (2) determine whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (3) measure the transaction price, including the constraint on variable consideration; (4) allocate the transaction price to the performance obligations based on estimated selling prices; and (5) recognize revenue when (or as) we satisfy each performance obligation.

We derive revenue by providing diagnostic and research services in our Immune Medicine and Minimal Residual Disease (“MRD”) market opportunities. Our Immune Medicine revenue consists of revenue generated from (1) providing sample testing services for our commercial research product, immunoSEQ, to biopharmaceutical customers and academic institutions; (2) our collaboration agreements with Genentech, Inc. (“Genentech”) and other biopharmaceutical customers in areas of drug and target discovery; and (3) providing our T-Detect COVID tests to clinical customers. Our MRD revenue consists of revenue generated from (1) providing our clonoSEQ report to clinical customers; (2) providing MRD sample testing services to biopharmaceutical customers and certain academic institutions, including investigator-led clinical trials; and (3) providing our clonoSEQ report or results to certain international laboratory sites through technology transfers.

For research customers who utilize either immunoSEQ or our MRD services, contracts typically include an amount billed in advance of services (“upfront”) and subsequent billings as sample results are delivered to the customer. Upfront amounts received are recorded as deferred revenue, which we recognize as revenue upon satisfaction of performance obligations. We have identified two typical performance obligations under the terms of our research service contracts: (1) the delivery of our immunoSEQ or MRD data for customer provided samples; and (2) related data analysis. We recognize revenue for both identified performance obligations as sample results are delivered to the customer. In periods where our sample estimates are reduced or a customer project is cancelled and, in either case, we have remaining related deferred revenue, we recognize revenue using a cumulative catch-up approach based on the proportion of samples delivered to date relative to the remaining samples expected to be delivered.

For agreements where we provide our clonoSEQ report to ordering physicians, we have identified one performance obligation: the delivery of a clonoSEQ report. We bill and receive payments for these transactions from commercial, government and medical institution payors. As payment from the respective payors may vary based on the various reimbursement rates and patient responsibilities, we consider the transaction price to be variable and record an estimate of the transaction price, subject to the constraint for variable consideration, as revenue at the time of delivery. The estimate of transaction price is based on historical and expected reimbursement rates with the various payors, which are monitored in subsequent periods and adjusted, as necessary, based on actual collection experience.

Regarding our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test report. This billing contemplates all necessary tests required during a patient’s treatment cycle, which is currently estimated at approximately four tests per patient, including the initial sequence identification test. Revenue recognition commences at the time the initial billable test report is delivered and is based upon cumulative tests delivered to date. We estimate the number of tests we expect to deliver over a patient’s treatment cycle based on historical testing frequencies for patients by indication. These estimates are subject to change as we develop more information about utilization over time. Any unrecognized revenue from the initial billable test is recorded as deferred revenue and is recognized either as we deliver our estimate of the remaining tests in a patient’s treatment cycle or when the likelihood becomes remote that a patient will receive additional testing.

The contract transaction price for agreements we enter into with biopharmaceutical customers to further develop and commercialize their therapeutics may consist of a combination of non-refundable upfront fees, separately priced MRD testing fees and milestone fees earned upon our customers’ achievement of certain regulatory approvals. Depending on the contract, these agreements include single or multiple performance obligations. Such performance obligations include providing services to support our customers’ therapeutic development efforts, including regulatory support for our technology intended to be utilized as part of our customers’ registrational trials, developing analytical plans for our data, participating on joint research committees, assisting in completing a regulatory submission and providing MRD testing services related to customer-provided samples for our customers' regulatory submissions. Generally, the support services, excluding MRD testing services, are not distinct within the context of the contract and thus are accounted for as a single performance obligation. The transaction price allocated to the respective performance obligations is estimated using an adjusted market assessment approach for the regulatory support services and a standalone selling price for the estimated MRD testing services. When MRD sample testing services are separately priced customer options, we assess if a material right exists and, if not, the customer option to purchase additional MRD sample testing services is not considered part of the contract. We recognize revenue related to MRD testing services over time using an output method based on the proportion of sample results delivered relative to the total amount of sample results expected to be delivered, when expected to be a faithful depiction of progress. We use the same method to recognize the regulatory support services. When an output method based on the proportion of sample results delivered is not expected to be a faithful depiction of progress, we utilize an input method using a cost-based model based on estimates of effort completed. Selecting the measure of progress and estimating progress to date requires significant judgment. Except for any non-refundable upfront fees, the other forms of compensation represent variable consideration. At contract inception, we fully constrain any consideration related to regulatory milestones, as the achievement of such milestones is subject to third-party regulatory approval and the customers’ own submission decision-making. Variable consideration related to regulatory milestones is estimated using the most likely amount method, where variable consideration is constrained until it is probable that a significant reversal of cumulative revenue will not occur. Milestone payments for regulatory approvals, which are not within our customers’ control, are not considered probable of being achieved until those approvals are received. Determining whether regulatory milestone payments are probable is an area that requires significant judgment. In making this assessment, we evaluate scientific, clinical, regulatory and other risks, as well as the level of effort and investment required to achieve the respective milestone.

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Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2023

Accounting Policies [Abstract]

Schedule of Concentrations of Risk Percentage

For each significant customer, revenue as a percentage of total revenue for the periods presented and accounts receivable, net as a percentage of total accounts receivable, net as of the dates presented were as follows:

	Revenue				Accounts Receivable, Net
	Three Months Ended September 30,		Nine Months Ended September 30,		September 30,	December 31,
	2023	2022	2023	2022	2023	2022
Customer A	*%	*%	*%	*%	*%	15.8%
Customer B	*	*	*	13.0	*	19.5
Customer C	*	*	*	*	10.1	*
Genentech, Inc. and Roche Group	23.2	45.1	30.0	38.2	*	*
* less than 10%

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Revenue (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregated Revenue

The following table presents our disaggregated revenue for the periods presented (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Immune Medicine revenue
Service revenue	$	5,238	$	6,559	$	17,848	$	20,968
Collaboration revenue		8,013		21,320		34,667		50,105
Total Immune Medicine revenue		13,251		27,879		52,515		71,073
MRD revenue
Service revenue		24,668		19,951		71,977		55,037
Regulatory milestone revenue		—		—		—		4,000
Total MRD revenue		24,668		19,951		71,977		59,037
Total revenue	$	37,919	$	47,830	$	124,492	$	130,110

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Deferred Revenue (Tables)

9 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Changes in Deferred Revenue

Changes in deferred revenue during the nine months ended September 30, 2023 were as follows (in thousands):

Deferred revenue balance at December 31, 2022	$	122,714
Additions to deferred revenue during the period		30,693
Revenue recognized during the period		(53,873	)
Deferred revenue balance at September 30, 2023	$	99,534

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis

The following tables set forth the fair values of financial assets as of September 30, 2023 and December 31, 2022 that were measured at fair value on a recurring basis (in thousands):

	September 30, 2023
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	63,981	$	—	$	—	$	63,981
Commercial paper		—		2,871		—		2,871
U.S. government treasury and agency securities		—		273,311		—		273,311
Corporate bonds		—		6,237		—		6,237
Total financial assets	$	63,981	$	282,419	$	—	$	346,400

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Financial assets
Money market funds	$	38,502	$	—	$	—	$	38,502
Commercial paper		—		9,969		—		9,969
U.S. government treasury securities		—		385,848		—		385,848
Corporate bonds		—		12,349		—		12,349
Total financial assets	$	38,502	$	408,166	$	—	$	446,668

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Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Investments

Available-for-sale investments consisted of the following as of September 30, 2023 and December 31, 2022 (in thousands):

	September 30, 2023
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	2,871	$	—	$	—		$	2,871
U.S. government treasury and agency securities		273,561		1		(251	)		273,311
Corporate bonds		6,237		—		—			6,237
Total short-term marketable securities	$	282,669	$	1	$	(251	)	$	282,419

	December 31, 2022
	Amortized Cost		Unrealized Gain		Unrealized Loss			Estimated Fair Value
Short-term marketable securities
Commercial paper	$	9,969	$	—	$	—		$	9,969
U.S. government treasury securities		389,898		14		(4,064	)		385,848
Corporate bonds		12,415		—		(66	)		12,349
Total short-term marketable securities	$	412,282	$	14	$	(4,130	)	$	408,166

Schedule of Gross Unrealized Holding Losses and Fair Value for Investments in Unrealized Loss Position

The following table presents the gross unrealized holding losses and fair values for investments in an unrealized loss position, and the length of time individual securities have been in a continuous loss position, as of September 30, 2023 (in thousands):

	Less Than 12 Months					12 Months Or Greater
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
U.S. government treasury and agency securities	$	222,795	$	(169	)	$	19,957	$	(82	)
Total available-for-sale securities	$	222,795	$	(169	)	$	19,957	$	(82	)

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Leases (Tables)

9 Months Ended

Sep. 30, 2023

Lessee Disclosure [Abstract]

Summary of Reconciles Undiscounted Operating Lease Cash Flows

The following table reconciles our undiscounted operating lease cash flows to our operating lease liabilities, less current portion balance as of September 30, 2023 (in thousands):

2023 (excluding the nine months ended September 30, 2023)	$	3,678
2024		13,692
2025		14,098
2026		12,330
2027		11,944
Thereafter		69,244
Total undiscounted lease payments		124,986
Less: Imputed interest rate		(23,680	)
Total operating lease liabilities		101,306
Less: Current portion		(9,482	)
Operating lease liabilities, less current portion	$	91,824

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Revenue Interest Purchase Agreement (Tables)

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenue Interest Liability, Net Activity

The following table sets forth the revenue interest liability, net activity during the nine months ended September 30, 2023 (in thousands):

Revenue interest liability, net at December 31, 2022	$	125,360
Interest expense		3,531
Revenue interest payable		(1,883	)
Revenue interest liability, net at March 31, 2023		127,008
Interest expense		3,605
Revenue interest payable		(2,446	)
Revenue interest liability, net at June 30, 2023		128,167
Interest expense		3,652
Revenue interest payable		(1,896	)
Revenue interest liability, net at September 30, 2023		129,923
Less: Current portion at September 30, 2023		(3,194	)
Revenue interest liability, net, less current portion at September 30, 2023	$	126,729

R

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Shareholders' Equity (Tables)

9 Months Ended

Sep. 30, 2023

Equity [Abstract]

Summary of Reserved Shares of Common Stock

As of September 30, 2023, we had reserved shares of common stock for the following:

Shares issuable upon the exercise of outstanding stock options granted	13,424,786
Shares issuable upon the vesting of outstanding restricted stock units granted and the maximum outstanding market-based restricted stock units eligible to be earned	11,851,128
Shares available for future grant under the 2019 Equity Incentive Plan	14,790,548
Shares available for future grant under the Employee Stock Purchase Plan	4,235,348
Total shares of common stock reserved for future issuance	44,301,810

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Equity Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Changes in Shares Available for Grant

Changes in shares available for grant during the nine months ended September 30, 2023 were as follows:

	Shares Available for Grant
Shares available for grant at December 31, 2022		14,581,975
2019 Equity Incentive Plan reserve increase effective January 1, 2023		7,155,250
Stock options and restricted stock units granted and the maximum market-based restricted stock units granted eligible to be earned		(9,868,290	)
Stock options and restricted stock units forfeited or expired		2,921,613
Shares available for grant at September 30, 2023		14,790,548

Summary of Stock Option Activity Under 2009 Plan and 2019 Plan

Stock option activity under the 2009 Plan and 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Shares Subject to Outstanding Stock Options			Weighted-Average Exercise Price per Share		Aggregate Intrinsic Value (in thousands)
Stock options outstanding at December 31, 2022		13,520,997		$	16.88
Stock options granted		1,612,032			8.46
Stock options forfeited		(1,000,780	)		16.99
Stock options expired		(340,058	)		27.34
Stock options exercised		(367,405	)		5.87
Stock options outstanding at September 30, 2023		13,424,786		$	15.90	$	1,108
Stock options vested and exercisable at September 30, 2023		9,145,151		$	15.87	$	1,108

Summary of Restricted Stock Unit Activity

Restricted stock unit activity under the 2019 Plan during the nine months ended September 30, 2023 was as follows:

	Restricted Stock Units Outstanding			Weighted-Average Grant Date Fair Value per Share
Nonvested restricted stock units outstanding at December 31, 2022		5,981,755		$	14.11
Restricted stock units granted		6,837,818			8.36
Restricted stock units forfeited		(1,580,775	)		11.37
Restricted stock units vested		(1,300,344	)		14.80
Nonvested restricted stock units outstanding at September 30, 2023		9,938,454		$	10.49

Summary of Estimated Grant Date Fair Value of Stock Options Granted

The estimated grant date fair values of stock options granted during the nine months ended September 30, 2023 and 2022 were estimated using the Black-Scholes option-pricing model with the following assumptions:

	Nine Months Ended September 30,
	2023		2022
Fair value of common stock	$8.46		$7.30 - $14.95
Expected term (in years)	5.27 - 6.08		5.27 - 6.08
Risk-free interest rate	4.2% - 4.3%		1.7% - 3.0%
Expected volatility	71.2% - 71.6%		68.2% - 71.0%
Expected dividend yield		—		—

Summary of Compensation Costs Related to Stock Options and RSUs Included on Unaudited Condensed Consolidated Statements of Operations

The compensation cost related to stock options, restricted stock units and market-based restricted stock units for the three and nine months ended September 30, 2023 and 2022, respectively, are included on the unaudited condensed consolidated statements of operations as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Cost of revenue	$	917	$	1,058	$	3,272	$	2,807
Research and development		5,187		4,382		15,267		13,370
Sales and marketing		3,241		3,357		11,111		10,170
General and administrative		5,991		5,345		17,702		14,836
Total share-based compensation expense	$	15,336	$	14,142	$	47,352	$	41,183

Schedule of Unrecognized Share-Based Compensation Expense and the Remaining Weighted-Average Recognition Period

As of September 30, 2023, unrecognized share-based compensation expense and the remaining weighted-average recognition period were as follows:

	Unrecognized Share-Based Compensation Expense (in thousands)		Remaining Weighted-Average Recognition Period (in years)
Nonvested stock options	$	40,916		2.08
Nonvested restricted stock units		85,893		2.90
Nonvested market-based restricted stock units		10,157		2.21

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Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders (Tables)

9 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Computation of the Basic and Diluted Net Loss Per Share Attributable to Common Shareholders

The following table sets forth the computation of basic and diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively (in thousands, except share and per share amounts):

	Three Months Ended September 30,						Nine Months Ended September 30,
	2023			2022			2023			2022
Net loss attributable to Adaptive Biotechnologies Corporation	$	(50,300	)	$	(45,281	)	$	(155,809	)	$	(160,063	)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted		144,704,868			142,928,654			144,208,940			142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic and diluted	$	(0.35	)	$	(0.32	)	$	(1.08	)	$	(1.12	)

Weighted-Average Common Stock Equivalents were Excluded From Calculation of Diluted Net Loss Per Share

The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share attributable to our common shareholders for the three and nine months ended September 30, 2023 and 2022, respectively, as they had an anti-dilutive effect:

	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Stock options outstanding		13,806,283		13,996,403		14,054,478		13,984,427
Nonvested restricted stock units outstanding		10,301,308		5,486,711		9,575,868		4,490,170
Maximum nonvested market-based restricted stock units outstanding eligible to be earned		1,912,674		494,234		1,580,146		381,990
Total		26,020,265		19,977,348		25,210,492		18,856,587

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Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Significant Accounting Policies [Line Items]
Restricted cash	$ 2,921	$ 2,398
Digital Biotechnologies Inc
Significant Accounting Policies [Line Items]
Ownership interest percentage	70.00%

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Significant Accounting Policies - Schedule of Concentrations of Risk Percentage (Details) - Customer Concentration Risk	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Customer A | Accounts Receivable, Net
Significant Accounting Policies [Line Items]
Concentration risk, percentage					15.80%
Customer B | Revenue
Significant Accounting Policies [Line Items]
Concentration risk, percentage				13.00%
Customer B | Accounts Receivable, Net
Significant Accounting Policies [Line Items]
Concentration risk, percentage					19.50%
Customer C | Accounts Receivable, Net
Significant Accounting Policies [Line Items]
Concentration risk, percentage			10.10%
Genentech, Inc. and Roche Group | Revenue
Significant Accounting Policies [Line Items]
Concentration risk, percentage	23.20%	45.10%	30.00%	38.20%

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Revenue - Schedule of Disaggregated 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	$ 37,919	$ 47,830	$ 124,492	$ 130,110
Immune Medicine Revenue
Disaggregation Of Revenue [Line Items]
Revenue	13,251	27,879	52,515	71,073
Immune Medicine Revenue | Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	5,238	6,559	17,848	20,968
Immune Medicine Revenue | Collaboration Revenue
Disaggregation Of Revenue [Line Items]
Revenue	8,013	21,320	34,667	50,105
MRD Revenue
Disaggregation Of Revenue [Line Items]
Revenue	24,668	19,951	71,977	59,037
MRD Revenue | Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue	$ 24,668	$ 19,951	$ 71,977	55,037
MRD Revenue | Regulatory Milestone Revenue
Disaggregation Of Revenue [Line Items]
Revenue				$ 4,000

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Revenue - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	May 31, 2023	Feb. 28, 2019	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenue from collaboration agreement			$ 37,919,000	$ 47,830,000	$ 124,492,000	$ 130,110,000
Deferred revenue			99,534,000		99,534,000		$ 122,714,000
Medicare Reimbursements
Disaggregation Of Revenue [Line Items]
Revenue from collaboration agreement			1,900,000	1,100,000	4,600,000	4,000,000
Medicare Reimbursements | Immune Medicine Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue from collaboration agreement					400,000	300,000
Medicare Reimbursements | MRD Service Revenue
Disaggregation Of Revenue [Line Items]
Revenue from collaboration agreement					4,200,000	3,700,000
MRD Development Agreements | Maximum
Disaggregation Of Revenue [Line Items]
Additional milestone payment receivable			399,500,000		399,500,000
Genentech Collaboration Agreement
Disaggregation Of Revenue [Line Items]
Revenue from collaboration agreement	$ 7,700,000		8,000,000	$ 20,400,000	34,700,000	$ 46,500,000
Non-refundable upfront payments received		$ 300,000,000.0			300,000,000.0
Additional transaction price of regulatory milestone	$ 10,000,000
Genentech Collaboration Agreement | Regulatory Milestones
Disaggregation Of Revenue [Line Items]
Additional transaction price of regulatory milestone					$ 10,000,000.0
Genentech Collaboration Agreement | Maximum
Disaggregation Of Revenue [Line Items]
Revenue recognition expected period					9 years
Genentech Collaboration Agreement | Maximum | Regulatory Milestones
Disaggregation Of Revenue [Line Items]
Expected revenue through milestone payments			75,000,000.0		$ 75,000,000.0
Genentech Collaboration Agreement | Maximum | Development Milestones
Disaggregation Of Revenue [Line Items]
Expected revenue through milestone payments			300,000,000.0		300,000,000.0
Genentech Collaboration Agreement | Maximum | Commercial Milestones
Disaggregation Of Revenue [Line Items]
Expected revenue through milestone payments			1,430,000,000		1,430,000,000
Genentech Collaboration Agreement | Minimum
Disaggregation Of Revenue [Line Items]
Expected revenue through milestone payments			$ 1,800,000,000		$ 1,800,000,000
Revenue recognition expected period					8 years

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Deferred Revenue - Additional Information (Details) - USD ($) $ in Thousands		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Current deferred revenue	$ 55,340	$ 55,340	$ 64,115
Non-current deferred revenue	44,194	44,194	58,599
Revenue recognized	41,200	(53,873)
Development Revenue | Genentech, Inc.
Disaggregation Of Revenue [Line Items]
Current deferred revenue	21,200	21,200	31,800
Non-current deferred revenue	$ 41,400	$ 41,400	$ 55,500

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Deferred Revenue - Additional Information (Details1) - Genentech, Inc. - Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2023-10-01	Sep. 30, 2023
Disaggregation Of Revenue [Line Items]
Deferred revenue, expected to be recognized	12 months
Maximum
Disaggregation Of Revenue [Line Items]
Deferred revenue, expected to be recognized	4 years

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Deferred Revenue - Schedule of Changes in Deferred Revenue (Details) - USD ($) $ in Thousands		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Deferred revenue balance at December 31, 2022		$ 122,714
Additions to deferred revenue during the period		30,693
Revenue recognized during the period	$ 41,200	(53,873)
Deferred revenue balance at September 30, 2023	$ 99,534	$ 99,534

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Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring basis - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Financial assets
Total financial assets	$ 346,400	$ 446,668
Level 1
Financial assets
Total financial assets	63,981	38,502
Level 2
Financial assets
Total financial assets	282,419	408,166
Money Market Funds
Financial assets
Total financial assets	63,981	38,502
Money Market Funds | Level 1
Financial assets
Total financial assets	63,981	38,502
U.S. Government Treasury and Agency Securities
Financial assets
Total financial assets	273,311
U.S. Government Treasury and Agency Securities | Level 2
Financial assets
Total financial assets	273,311
Commercial Paper
Financial assets
Total financial assets	2,871	9,969
Commercial Paper | Level 2
Financial assets
Total financial assets	2,871	9,969
U.S. Government Treasury Securities
Financial assets
Total financial assets		385,848
U.S. Government Treasury Securities | Level 2
Financial assets
Total financial assets		385,848
Corporate Bonds
Financial assets
Total financial assets	6,237	12,349
Corporate Bonds | Level 2
Financial assets
Total financial assets	$ 6,237	$ 12,349

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Investments - Schedule of Available-for-sale Investments (Details) - Short-Term Marketable Securities - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	$ 282,669	$ 412,282
Unrealized Gain	1	14
Unrealized Loss	(251)	(4,130)
Estimated Fair Value	282,419	408,166
U.S. Government Treasury and Agency Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	273,561
Unrealized Gain	1
Unrealized Loss	(251)
Estimated Fair Value	273,311
Commercial Paper
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	2,871	9,969
Estimated Fair Value	2,871	9,969
U.S. Government Treasury Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost		389,898
Unrealized Gain		14
Unrealized Loss		(4,064)
Estimated Fair Value		385,848
Corporate Bonds
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	6,237	12,415
Unrealized Loss		(66)
Estimated Fair Value	$ 6,237	$ 12,349

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Investments - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Prepaid Expenses and Other Current Assets
Schedule of Available-for-Sale Securities [Line Items]
Accrued interest receivable	$ 1.1	$ 0.8

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Investments - Schedule of Gross Unrealized Holding Losses and Fair Value for Investments in Unrealized Loss Position (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Schedule of Available-for-Sale Securities [Line Items]
Less than 12 months, Fair value	$ 222,795
Less than 12 months, Unrealized loss	(169)
12 months or greater, Fair value	19,957
12 months or greater, Unrealized loss	(82)
U.S. Government Treasury and Agency Securities
Schedule of Available-for-Sale Securities [Line Items]
Less than 12 months, Fair value	222,795
Less than 12 months, Unrealized loss	(169)
12 months or greater, Fair value	19,957
12 months or greater, Unrealized loss	$ (82)

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Leases - Summary of Reconciles Undiscounted Operating Lease Cash Flows (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Lessee Disclosure [Abstract]
2023 (excluding the nine months ended September 30, 2023)	$ 3,678
2024	13,692
2025	14,098
2026	12,330
2027	11,944
Thereafter	69,244
Total undiscounted lease payments	124,986
Less: Imputed interest rate	(23,680)
Total operating lease liabilities	101,306
Less: Current portion	(9,482)	$ (9,230)
Operating lease liabilities, less current portion	$ 91,824	$ 98,772

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Leases - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Lessee Disclosure [Abstract]
Cash paid for amounts included in measurement of lease liabilities, net of tenant improvement allowances received	$ 10.3	$ 6.9
Cash received for tenant improvement allowances		$ 4.0
Letter of credit	$ 2.1

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Revenue Interest Purchase Agreement - Additional Information (Details) - Purchase Agreement - OrbiMed - USD ($)		3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 12, 2022	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Upfront payment received	$ 125,000,000
Potential revenue interest second payment to be received	$ 75,000,000
Purchase agreement, second payment date	Sep. 12, 2025
Potential revenue interest third payment to be received	$ 50,000,000
Purchase agreement, third payment date	Sep. 12, 2025
Revenue interest payment term	45 days
Amortization of purchase agreement obligation					$ 0
Effective interest rate		11.30%			11.30%
Debt issuance costs		$ 600,000			$ 600,000
Revenue interest payable		$ 1,896,000	$ 2,446,000	$ 1,883,000	$ 1,900,000	$ 2,800,000
Maximum
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Potential revenue interest payment to be received	$ 125,000,000

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Revenue Interest Purchase Agreement - Schedule of Revenue Interest Liability, Net Activity (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended	12 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Less: Current portion	$ (3,194)			$ (3,194)
Revenue interest liability, net, less current portion	126,729			126,729	$ 125,360
OrbiMed | Purchase Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Revenue interest liability, net	128,167	$ 127,008	$ 125,360	125,360
Interest expense	3,652	3,605	3,531
Revenue interest payable	(1,896)	(2,446)	(1,883)	(1,900)	(2,800)
Revenue interest liability, net	129,923	$ 128,167	$ 127,008	129,923	$ 125,360
Less: Current portion	(3,194)			(3,194)
Revenue interest liability, net, less current portion	$ 126,729			$ 126,729

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Shareholders' Equity - Additional Information (Details)			9 Months Ended
	Jan. 01, 2023 shares	Jan. 01, 2020	Sep. 30, 2023 Vote
Class Of Stock [Line Items]
Common stock voting rights description			Holders of our common stock are entitled to one vote for each share of common stock held
Number of vote for each share | Vote			1
Employee Stock Purchase Plan
Class Of Stock [Line Items]
Increase in share reserve	1,431,050
Employee Stock Purchase Plan | Maximum
Class Of Stock [Line Items]
Percentage of annual increases in number of shares		1.00%
2019 Equity Incentive Plan
Class Of Stock [Line Items]
Increase in share reserve	7,155,250
2019 Equity Incentive Plan | Maximum
Class Of Stock [Line Items]
Percentage of annual increases in number of shares		5.00%

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Shareholders' Equity - Summary of Reserved Shares of Common Stock (Details)	Sep. 30, 2023 shares
Class Of Stock [Line Items]
Total shares of common stock reserved for future issuance	44,301,810
Shares Issuable Upon the Exercise of Outstanding Stock Options Granted
Class Of Stock [Line Items]
Total shares of common stock reserved for future issuance	13,424,786
Shares Issuable Upon the Vesting of Outstanding Restricted Stock Units and the Maximum Outstanding Market-based Restricted Stock Units Granted
Class Of Stock [Line Items]
Total shares of common stock reserved for future issuance	11,851,128
Common Stock Options Granted | 2019 Equity Incentive Plan
Class Of Stock [Line Items]
Total shares of common stock reserved for future issuance	14,790,548
Common Stock Options Granted | Employee Stock Purchase Plan
Class Of Stock [Line Items]
Total shares of common stock reserved for future issuance	4,235,348

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Equity Incentive Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Mar. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average remaining contractual life stock options outstanding			6 years 3 months 18 days
Weighted-average remaining contractual life vested and exercisable options outstanding			5 years 2 months 12 days
Weighted-average grant date fair value			$ 5.61	$ 7.36
Recognized share-based compensation expense	$ 15,336	$ 14,142	$ 47,352	$ 41,183
Option Valuation Model
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expected dividend yield			0.00%
Monte Carlo Valuation Model
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recognized share-based compensation expense			$ 9,800	$ 4,700
Requisite service period term			3 years
Market-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units outstanding	956,337		956,337
Weighted-average grant date fair value per share	$ 15.13		$ 15.13
Market-Based Restricted Stock Units | Monte Carlo Valuation Model
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value			$ 13.82	$ 18.89
Market-Based Restricted Stock Units | Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Performance period term			3 years
Market-Based Restricted Stock Units | Minimum | Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock that may be earned under the award	0		0			0
Market-Based Restricted Stock Units | Maximum | Chief Executive Officer
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock that may be earned under the award	709,220		709,220			494,234
2009 Equity Incentive Plan | Grant
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future issuance	0		0
2009 Equity Incentive Plan | Grant | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option expiration period			10 years
2019 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for future issuance	14,790,548		14,790,548		14,581,975
2019 Equity Incentive Plan | Grant
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares authorized for issuance	34,913,524		34,913,524
2019 Equity Incentive Plan | Grant | Non Employee Directors
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period			4 years
2019 Equity Incentive Plan | Grant | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Option expiration period			10 years
2019 Equity Incentive Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted-average grant date fair value			$ 8.36	$ 11.72
Restricted stock units outstanding	9,938,454		9,938,454		5,981,755
Weighted-average grant date fair value per share	$ 10.49		$ 10.49		$ 14.11

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Equity Incentive Plans - Summary of Changes in Shares Available for Grant (Details) - 2019 Equity Incentive Plan	9 Months Ended
	Sep. 30, 2023 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares available for grant at December 31, 2022	14,581,975
2019 Equity Incentive Plan reserve increase effective January 1, 2023	7,155,250
Stock options and restricted stock units granted and the maximum market-based restricted stock units granted eligible to be earned	(9,868,290)
Stock options and restricted stock units forfeited or expired	2,921,613
Shares available for grant at September 30, 2023	14,790,548

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Equity Incentive Plans - Summary of Stock Option Activity Under 2009 Plan and 2019 Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Shares Subject to Outstanding Stock Options, Stock Options outstanding, Beginning Balance	13,520,997
Shares Subject to Outstanding Stock Options, Stock Options granted	1,612,032
Shares Subject to Outstanding Stock Options, Stock Options forfeited	(1,000,780)
Shares Subject to Outstanding Stock Options, Stock Options expired	(340,058)
Shares Subject to Outstanding Stock Options, Stock Options exercised	(367,405)
Shares Subject to Outstanding Stock Options, Stock Options outstanding, Ending Balance	13,424,786
Shares Subject to Outstanding Stock Options, Stock Options vested and exercisable	9,145,151
Weighted Average Exercise Price per Share, Stock Options outstanding, Beginning Balance	$ 16.88
Weighted Average Exercise Price per Share, Stock Options granted	8.46
Weighted Average Exercise Price per Share, Stock Options forfeited	16.99
Weighted Average Exercise Price per Share, Stock Options expired	27.34
Weighted Average Exercise Price per Share, Stock Options exercised	5.87
Weighted Average Exercise Price per Share, Stock Options outstanding, Ending Balance	15.9
Weighted Average Exercise Price per Share, Stock Options vested and exercisable	$ 15.87
Aggregate Intrinsic Value, Stock Option outstanding	$ 1,108
Aggregate Intrinsic Value, Stock Options vested and exercisable	$ 1,108

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Equity Incentive Plans - Summary of Restricted Stock Unit Activity (Details) - $ / shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Weighted-Average Grant Date Fair Value per Share
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Granted	$ 5.61	$ 7.36
Restricted Stock Units (RSUs) | 2019 Equity Incentive Plan
Restricted Stock Units Outstanding
Restricted Stock Units Outstanding, Nonvested Outstanding, Beginning Balance	5,981,755
Restricted Stock Units Outstanding, Granted	6,837,818
Restricted Stock Units Outstanding, Forfeited	(1,580,775)
Restricted Stock Units Outstanding, Vested	(1,300,344)
Restricted Stock Units Outstanding, Nonvested Outstanding, Ending Balance	9,938,454
Weighted-Average Grant Date Fair Value per Share
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Beginning Balance	$ 14.11
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Granted	8.36	$ 11.72
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Forfeited	11.37
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Vested	14.8
Weighted-Average Grant Date Fair Value per Share, Nonvested Outstanding, Ending Balance	$ 10.49

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Equity Incentive Plans - Summary of Estimated Grant Date Fair Value of Stock Options Granted (Details) - $ / shares	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of common stock	$ 8.46
Risk-free interest rate, minimum	4.20%	1.70%
Risk-free interest rate, maximum	4.30%	3.00%
Expected volatility, minimum	71.20%	68.20%
Expected volatility, maximum	71.60%	71.00%
Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of common stock		$ 7.3
Expected term (in years)	5 years 3 months 7 days	5 years 3 months 7 days
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Fair value of common stock		$ 14.95
Expected term (in years)	6 years 29 days	6 years 29 days

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Equity Incentive Plans - Summary of Compensation Costs Related to Stock Options and RSUs Included on Unaudited Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 15,336	$ 14,142	$ 47,352	$ 41,183
Cost of Revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	917	1,058	3,272	2,807
Research and Development
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	5,187	4,382	15,267	13,370
Sales and Marketing
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	3,241	3,357	11,111	10,170
General and Administrative
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation expense	$ 5,991	$ 5,345	$ 17,702	$ 14,836

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Equity Incentive Plans - Schedule of Unrecognized Share-Based Compensation Expense and the Remaining Weighted-Average Recognition Period (Details)	9 Months Ended
	Sep. 30, 2023 USD ($)
Nonvested Stock Options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Share-Based Compensation Expense	$ 40,916
Remaining Weighted-Average Recognition Period (in years)	2 years 29 days
Nonvested Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Share-Based Compensation Expense	$ 85,893
Remaining Weighted-Average Recognition Period (in years)	2 years 10 months 24 days
Nonvested Market-Based Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized Share-Based Compensation Expense	$ 10,157
Remaining Weighted-Average Recognition Period (in years)	2 years 2 months 15 days

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Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders - Computation of the Basic and Diluted Net Loss Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share [Abstract]
Net loss attributable to Adaptive Biotechnologies Corporation	$ (50,300)	$ (45,281)	$ (155,809)	$ (160,063)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	144,704,868	142,928,654	144,208,940	142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, basic	$ (0.35)	$ (0.32)	$ (1.08)	$ (1.12)
Weighted-average shares used in computing net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	144,704,868	142,928,654	144,208,940	142,334,342
Net loss per share attributable to Adaptive Biotechnologies Corporation common shareholders, diluted	$ (0.35)	$ (0.32)	$ (1.08)	$ (1.12)

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Net Loss Per Share Attributable to Adaptive Biotechnologies Corporation Common Shareholders - Weighted-Average Common Stock Equivalents were 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	26,020,265	19,977,348	25,210,492	18,856,587
Common Stock Options Granted
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities	13,806,283	13,996,403	14,054,478	13,984,427
Nonvested Restricted Stock Units Outstanding
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities	10,301,308	5,486,711	9,575,868	4,490,170
Nonvested Market-based Restricted Stock Units Outstanding Granted
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities	1,912,674	494,234	1,580,146	381,990