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ADPT US Equity

Adaptive Biotechnologies CorpHealth Care · Biological Products, (No Diagnostic Substances) · CIK 1478320 · FY ends Dec 31
$25.49
+0.93 (+3.79%)
USD · as of 2026-08-19 · marketstack

ADPT · 10-K · period ended 2020-12-31

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filed 2021-02-24 · EDGAR original ↗

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Item 7. 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 our financial statements and related notes and the other financial information appearing elsewhere in this Annual Report on Form 10-K, 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 Annual Report on Form 10-K, 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.

This section generally discusses 2020 and 2019 items and year-to-year comparisons between 2020 and 2019. Discussions of 2018 items and year-to-year comparisons between 2019 and 2018 may be found in Part II, Item 7 under the caption "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2019.

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, autoimmune conditions and infectious diseases.

Our immune medicine platform is the foundation for our expanding suite of products and services. 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. Our first clinical diagnostic product, clonoSEQ, is the first test authorized by the FDA for the detection and monitoring of MRD in patients with MM, ALL and CLL and is also available as a CLIA-validated LDT for patients with other lymphoid cancers.

We are using the TCR-Antigen Map to develop research solutions and diagnostic products, such as immunoSEQ T-MAP and T-Detect, formerly known as immunoSEQ Dx. T-Detect COVID, for which we have applied for EUA, confirms past SARS-CoV-2 infection, the virus that causes COVID-19, and is also the first indication for the T-Detect product line. We are finalizing clinical validation of T-Detect for acute Lyme disease, have identified a clinical signal for Crohn’s disease and continue to pursue signals for other disease states, in parallel.

Our therapeutic product candidates, being developed under the Genentech Agreement, leverage our platform to identify specific receptors on immune cells to develop into cellular therapies in oncology. We also recently extended our platform to identify highly potent neutralizing antibodies against SARS-CoV-2 and we believe this differentiated approach may be leveraged across multiple disease states.

Since our inception, we have devoted a majority of our resources to research and development activities to develop our immune medicine platform.

For our life sciences research customers, we provide two categories of products and services using immunoSEQ. First, we provide immunosequencing services, the revenue from which we record as sequencing revenue. Second, we provide certain research customers professional support, for which we may receive nonrefundable upfront or recurring payments. We may receive additional payments upon those customers achieving specified milestones. Revenue related to these activities are recorded as development revenue.

For our clinical diagnostics customers, we sell our clonoSEQ diagnostic test and T-Detect COVID test, which include our immunosequencing services and are thus recorded as sequencing revenue. In the future, we intend to sell other diagnostics products and services, including other indications for T-Detect, which we also expect to record as sequencing revenue.

For our current drug discovery collaborator, Genentech, we screen, identify and characterize TCRs in support of our collaboration. We record revenue from this collaboration as development revenue.

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Historically, we have sold immunoSEQ as a fee-for-service offering. These research offerings have comprised the majority of our revenue to date, although our business is pursuing broader opportunities. As we continue to expand the use of our clonoSEQ diagnostic tests, develop and commercialize T-Detect and develop and commercialize therapeutic product candidates with our drug discovery collaborator, we expect our mix of revenue to shift to clinical products and services, which we believe will become our largest sources of revenue.

We are actively pursuing opportunities to deepen our relationships with current customers and initiate relationships with new customers. We have an experienced, specialty salesforce that is targeting department heads, laboratory directors, principal investigators, core facility directors, clinicians, payors and research scientists and pathologists at leading academic institutions, biopharmaceutical companies, research institutions and contract research organizations. As MRD assessment becomes standard practice for patient management across a range of blood cancers, we believe it will be essential for clinicians and patients to have access to a highly accurate, sensitive and standardized MRD assessment tool. We are focused on establishing and maintaining collaborative relationships with payors, developing health economic evidence and building billing and patient access infrastructure to expand reimbursement coverage for our clinical diagnostics. We continue to seek expanded coverage of our clonoSEQ diagnostic test and have successfully expanded coverage through contractual agreements or positive medical policies with Medicare and several of the largest national private health insurers in the United States.

We generated revenue of $98.4 million and $85.1 million for the year ended December 31, 2020 and 2019, respectively. Our net losses were $146.2 million and $68.6 million for the year ended December 31, 2020 and 2019, respectively. We have funded our operations to date principally from the sale of convertible preferred stock and common stock and, to a lesser extent, sequencing and development revenue. As of December 31, 2020 and 2019, we had cash, cash equivalents and marketable securities of $806.8 million and $682.3 million, respectively.

Follow-On Offering

In July 2020, we completed an underwritten public offering of our common stock in which we issued and sold 7,200,000 shares of common stock at a public offering price of $40.00 per share. We received $271.8 million in net proceeds, after deducting underwriting discounts and net offering expenses paid by us.

Components of Results of Operations

Revenue

We derive our revenue from two sources: (1) sequencing revenue and (2) development revenue.

Sequencing revenue. Sequencing revenue reflects the amounts generated from providing testing services through clonoSEQ to clinical and research customers and from providing sequencing services through immunoSEQ to research customers.

For our clinical customers, we derive revenue from providing our clonoSEQ test report to ordering physicians. We bill medical institutions and commercial and government payors based on tests delivered to ordering physicians. Amounts paid for clonoSEQ diagnostic tests by medical institutions and commercial and government payors vary based on respective reimbursement rates and patient responsibilities, which may differ from our targeted list price. To date, the majority of our clonoSEQ diagnostic test revenue has been received from medical institutions. 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. Until 2019, we did not have reimbursement available to us through any government payors for clonoSEQ.

For our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test results. 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 result 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 as we deliver the remaining tests in a patient’s treatment cycle or when it becomes remote that a patient will receive additional testing and we have not delivered our estimate of total tests.

For our research customers, which include biopharmaceutical customers and academic institutions, delivery of the sequencing results may include some level of professional support and analysis. Terms with biopharmaceutical customers generally include non-refundable upfront payments, which we record as deferred revenue. For all 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.

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Development revenue. Development revenue primarily represents regulatory or development support services, other than sequencing revenue, that we provide to biopharmaceutical customers who seek access to our platform to support their therapeutic development activities. We enter into collaboration and similar agreements with these customers. When these agreements include sequencing activities, we separately classify those activities as sequencing revenue. These agreements may also include substantial non-refundable upfront payments, which we recognize as development revenue over time as we perform the respective services. Additionally, we generate development revenue from the achievement of regulatory milestones.

We expect revenue to increase over the long term, particularly as the mix of revenue migrates to clinical diagnostics and drug discovery. The pace by which this mix migrates will be determined by the level of customer adoption and frequency of use of our products and services. 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 us or our customers, timing of expenses incurred, changes in estimates of total anticipated costs related to our 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.

Due to the ongoing uncertainties related to the COVID-19 pandemic, we may continue to experience variability in revenue in the near term as our customers’ abilities to procure samples for their research initiatives change, as customer initiatives evolve and as clinical testing is impacted.

Cost of Revenue

Cost of revenue includes the cost of materials, personnel-related expenses (comprised of salaries, benefits and share-based compensation), shipping and handling, equipment and allocated facility costs associated with processing samples and professional support for our sequencing revenue. Allocated facility costs include depreciation of laboratory equipment, 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 our Genentech Agreement are a component of our research and development activities.

We expect cost of revenue to increase in absolute dollars as we grow our sequencing volume and make increased investments in laboratory automation and facilities, but the cost per sample to decrease over the long term due to the efficiencies we may gain as sequencing volume increases from improved utilization of our laboratory capacity, automation and other value engineering initiatives. If our sample volume throughput is reduced as a result of the COVID-19 pandemic or otherwise, 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, 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 do not track research and development expenses by specific product candidates.

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

We expect our research and development expenses to continue to increase in absolute dollars as we innovate and expand the application of our platform. However, we expect research and development expenses 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. While the pace and priorities of our research and development initiatives may continue to be impacted by the COVID-19 pandemic, we expect to continue to increase expenses in both the near and long-term to support our ongoing initiatives, which include our initiatives with respect to COVID-19.

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Sales and Marketing Expenses

Sales and marketing expenses consist primarily of personnel-related expenses for commercial sales, 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 our sales and marketing expenses to increase in absolute dollars as we expand our commercial sales, marketing and business development teams and 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 consist primarily of personnel-related expenses, including share-based compensation, salaries and benefits for our personnel in executive, legal, finance and accounting, human resources and other administrative functions, including third-party 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 our general and administrative expenses to continue to increase in absolute dollars as we increase headcount. Though expected to increase in absolute dollars, we expect these expenses to decrease as a percentage of revenue in the long term as revenue increases.

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:

Year Ended December 31,

(in thousands, except share and per share amounts)

Statements of Operations Data:

Revenue

Operating expenses

Other Financial and Operating Data:

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

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Comparison of the Years Ended December 31, 2020 and 2019

Revenue

Year Ended December 31, Change Percent of Revenue

Revenue

Total revenue was $98.4 million for the year ended December 31, 2020, compared to $85.1 million for the year ended December 31, 2019, representing an increase of $13.3 million, or 16%.

Sequencing revenue decreased to $41.4 million for the year ended December 31, 2020, representing a decrease of $2.1 million, or 5%. The decrease in sequencing revenue was attributable to an $8.6 million decrease in revenue generated from biopharmaceutical and academic customers, inclusive of a $0.9 million decrease in revenue recognized from cancelled customer projects, which was partially offset by a $6.5 million increase in revenue generated from clinical customers. This increase was inclusive of a $0.6 million increase in revenue related to Medicare that was recognized from our deferred revenue because of our determination that additional testing for specific patients was remote.

Research sequencing volume decreased by 36% to 22,663 sequences delivered in the year ended December 31, 2020 from 35,491 sequences delivered in the year ended December 31, 2019. The reduction in research sequencing volume was driven partly by the expiration of a translational agreement with a biopharmaceutical customer in the fourth quarter of 2019 and trial enrollment delays and project deferrals from our biopharmaceutical and academic customers. The impact of the COVID-19 pandemic on the operating capacity of our biopharmaceutical and academic customers was a large contributing factor to trial enrollment delays. Clinical sequencing volume increased by 50% to 15,216 clinical tests delivered in the year ended December 31, 2020 from 10,168 clinical tests delivered in the year ended December 31, 2019.

Development revenue increased to $56.9 million for the year ended December 31, 2020, representing an increase of $15.4 million, or 37%. The increase was primarily attributable to a $17.7 million increase in revenue generated from the Genentech Agreement, partially offset by a $2.0 million decrease in revenue generated from translational agreements.

Cost of Revenue

Year Ended December 31, Change Percent of Revenue

Cost of revenue was $22.5 million for the year ended December 31, 2020, compared to $22.3 million for the year ended December 31, 2019, representing an increase of approximately $0.3 million, or 1%. The increase was primarily attributable to a $5.8 million increase in labor and overhead costs, a $0.8 million increase in cost of materials resulting from product mix and a $0.6 million increase in biopharmaceutical partner support and other expenses, all of which were mostly offset by a $5.9 million decrease related to higher usage of our production laboratory to process research and development samples versus revenue samples, as well as a $1.1 million decrease in materials cost resulting from decreased revenue sample volume.

Research and Development

Year Ended December 31, Change Percent of Revenue

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

Year Ended December 31,

Allocable facilities and information technology expenses 5,277 3,510 1,767

Research and development expenses were $116.1 million for the year ended December 31, 2020, compared to $70.7 million for the year ended December 31, 2019, representing an increase of $45.4 million, or 64%. The increase was primarily attributable to an $18.4 million increase in cost of materials and allocated production laboratory expenses, a $17.4 million increase in personnel costs and a $6.7 million increase in depreciation and other expenses. The increase in cost of materials and allocated production laboratory expenses was primarily related to supporting investments in our T-Detect and TCR-Antigen Map development and immune medicine platform, as well as our drug discovery efforts.

Sales and Marketing

Year Ended December 31, Change Percent of Revenue

Sales and marketing expenses were $61.4 million for the year ended December 31, 2020, compared to $38.5 million for the year ended December 31, 2019, representing an increase of $22.9 million, or approximately 60%. The increase was primarily attributable to $14.5 million in additional personnel costs and $8.7 million in additional marketing expenses. Our clonoSEQ marketing efforts were the largest driver of this $8.7 million increase, followed by increased shared corporate marketing services and, to a lesser extent, additional marketing expenses related to T-Detect and life sciences research. These increases were partially offset by a $1.9 million decrease in travel and customer event related expenses.

General and Administrative

Year Ended December 31, Change Percent of Revenue

General and administrative expenses were $49.5 million for the year ended December 31, 2020, compared to $30.3 million for the year ended December 31, 2019, representing an increase of $19.2 million, or 63%. The increase was primarily attributable to a $10.9 million increase in personnel costs, a $4.6 million increase in legal, accounting and tax fees and a $2.3 million increase in insurance costs, both of which were largely due to the effect of operating as a public company for the full year ended December 31, 2020.

Interest and Other Income, Net

Year Ended December 31, Change

(in thousands, except percentages) 2020 2019 $ %

Interest and other income, net was $6.6 million for the year ended December 31, 2020, compared to $9.8 million for the year ended December 31, 2019, representing a decrease of $3.2 million, or 33%. The decrease was primarily attributable to a $5.6 million decrease in net interest income and investment amortization resulting from reductions in interest rates and related yields, partially offset by the $2.3 million impact of revaluing a convertible preferred stock warrant liability in the year ended December 31, 2019.

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Adjusted EBITDA

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

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:

• changes in our working capital needs;

• the non-cash component of employee compensation expense; and

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

The following is a reconciliation of our net loss to Adjusted EBITDA for the periods presented (in thousands):

Year Ended December 31,

(1) Represents share-based compensation expense related to option and restricted stock unit awards. See Note 13 to our financial statements included elsewhere in this Annual Report on Form 10-K 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 from inception through December 31, 2018, and again in the year ended December 31, 2020. As of December 31, 2020, we had an accumulated deficit of $511.6 million.

We have funded our operations to date principally from the sale of convertible preferred stock and common stock and, to a lesser extent, sequencing and development revenue. As of December 31, 2020, we had cash, cash equivalents and marketable securities of $806.8 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 flow from operations are insufficient to satisfy our liquidity requirements, we may 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.

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We plan to utilize the existing cash, cash equivalents and marketable securities on hand primarily to fund our commercial and marketing activities associated with our clinical products and services, continued research and development initiatives for our pipeline candidates and drug discovery initiatives and ongoing investments in our immune medicine platform. We also expect to make increased capital expenditures in the near term related to the expansion of our office and laboratory space and expect to increase investment in laboratory equipment and operations to support our anticipated growth. 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 U.S. government debt securities and corporate bonds.

Our contractual obligations as of December 31, 2020 include operating lease obligations of $149.6 million, reflecting the minimum commitments for our office and laboratory spaces in Seattle, Washington and South San Francisco, California, a commitment to an office lease in New York City, New York and a commitment for server space in Seattle, Washington. See Note 10 to our financial statements included elsewhere in this Annual Report on Form 10-K for more information, including the timing of cash payments related to these lease obligations. Additionally, we have purchase commitments for cloud data storage through our collaboration with Microsoft, software and service license commitments, which are generally fulfilled within one to three years, royalty commitments and minimum commitments for laboratory material suppliers, which are generally fulfilled within one year. Furthermore, in connection with one of our lease agreements, we have an existing letter of credit of $2.1 million with one of our existing financial institutions.

While we may experience reductions in our revenue in the near term as a result of the COVID-19 pandemic or otherwise, as long-term revenue from sales of our current and future products and services is expected to grow, we expect our accounts receivable and inventory balances to increase. 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.

Cash Flows

The following table summarizes our uses and sources of cash for the years ended December 31, 2020 and 2019 (in thousands):

Year Ended December 31,

Net cash (used in) provided by operating activities $ (149,683 ) $ 205,404

Operating Activities

Cash used in operating activities during the year ended December 31, 2020 was $149.7 million, which was primarily attributable to a net loss of $146.2 million and a net change in our operating assets and liabilities of $40.8 million, which were partially offset by non-cash share-based compensation of $24.8 million, non-cash depreciation and amortization of $9.2 million and noncash lease expense of $3.3 million. The net change in our operating assets and liabilities was primarily due to a $43.4 million reduction in deferred revenue primarily related to revenue recognized from the Genentech Agreement, a $5.0 million increase in inventory, a $1.4 million increase in prepaid expenses and other current assets and a $0.9 million decrease in operating lease liabilities. These changes were partially offset by an increase in accounts payable and accrued liabilities of $7.5 million and a reduction in accounts receivable, net of $2.6 million.

Cash provided by operating activities during the year ended December 31, 2019 was $205.4 million, which was primarily attributable to a net change in our operating assets and liabilities of $254.9 million, non-cash share-based compensation of $13.1 million, non-cash depreciation and amortization of $3.3 million and a $2.3 million fair value adjustment of our convertible preferred stock warrant liability due to an increase in valuation of our common stock, partially offset by a net loss of $68.6 million. The net change in our operating assets and liabilities reflects an increase in deferred revenue of $266.9 million, primarily due to the $300.0 million upfront payment by Genentech, and an increase in accounts payable and accrued liabilities of $6.1 million, primarily due to increased headcount and the growth in operating expenditures and timing of vendor payments. These increases were partially offset by an increase in accounts receivable of $7.8 million, primarily due to an increase in clinical billings, as well as an increase in revenue paid in arrears rather than upfront by biopharmaceutical customers, an increase in prepaid expenses and other current assets of $8.6 million, primarily due to prepaid software, prepaid insurance and interest receivables, an increase in inventory of $1.2 million to support growth in lab operations and $0.6 million in security deposits.

Investing Activities

Cash used in investing activities during the year ended December 31, 2020 was $117.0 million, which was primarily attributable to purchases of marketable securities of $695.0 million and purchases of property and equipment of $18.8 million, partially offset by proceeds from sales and maturities of marketable securities of $596.7 million.

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Cash used in investing activities during the year ended December 31, 2019 was $481.7 million, which was primarily attributable to purchases of marketable securities of $884.2 million and purchases of property and equipment of $11.2 million, partially offset by proceeds from maturities of marketable securities of $413.7 million.

Financing Activities

Cash provided by financing activities during the year ended December 31, 2020 was $293.6 million, which was primarily attributable to $271.8 million in proceeds, after deducting underwriting discounts and net offering expenses paid by us, received from our underwritten public offering completed in July 2020, as well as $21.7 million in proceeds from the exercise of stock options.

Cash provided by financing activities during the year ended December 31, 2019 was $319.9 million, which was primarily attributable to proceeds from our initial public offering, net of underwriting discounts and commissions, of $320.9 million and proceeds from the exercise of stock options of $4.1 million, partially offset by payment of deferred initial public offering costs of $5.0 million.

Net Operating Loss Carryforwards

Utilization of our 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, 2018 and an analysis is ongoing for ownership changes through December 31, 2020. Based on these analyses, we do not expect to have any permanent limitations on the utilization of our federal NOLs. Under the TCJA, federal net operating losses incurred in 2018 and future years may be carried forward indefinitely, but the deductibility of such federal NOL is subject to an annual limitation. Net operating losses 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, 2020. Accordingly, management applied a full valuation allowance against net deferred tax assets as of December 31, 2020. In March 2020, under the newly enacted Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”), NOLs arising in tax years beginning after December 31, 2017 and before January 1, 2021 may be carried back to each of the five tax years preceding the tax year of the loss. Additionally, the CARES Act temporarily removes the 80% limitation, reinstating it for tax years beginning after 2020. However, none of these provisions have an impact on our tax provision.

Critical Accounting Policies and Estimates

We have prepared our financial statements in accordance with GAAP. Our preparation of these 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 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 thecircumstances. Estimates are used in several areas, including, but not limited to, estimates of progress to date for certain performance obligations and transaction price for certain contracts with customers, share-based compensation, including the fair value of stock, the provision for income taxes, including related reserves, and goodwill, 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 Note 2 to our financial statements included elsewhere in this Annual Report on Form 10-K, we believe the following accounting policies to be critical to the judgments and estimates used in the preparation of our financial statements.

Revenue Recognition

Our development and sequencing revenue arrangements may include upfront payments for the performance of services in the future, which have both fixed and variable consideration. Non-refundable upfront fees and funding for related development services are generally considered fixed consideration, while milestone payments are identified as variable consideration.

In determining the appropriate amount of revenue to recognize as we fulfill our obligations under these agreements, 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.

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A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is the unit of account in Accounting Standard Codification (“ASC”) Topic 606, Revenue from Contracts with Customers. Our performance obligations include sequencing services and services associated with regulatory submission and approval processes. Significant management judgment is applied to determine (1) the measurement of the transaction price, including the constraint on variable consideration, (2) the allocation of the transaction price to the performance obligations and (3) the appropriate input or output based method to recognize revenue and the extent of progress to date.

We include the unconstrained amount of estimated variable consideration in the transaction price. The amount included in the transaction price is constrained to the amount for which it is probable that a significant reversal of cumulative revenue recognized will not occur. At the end of each subsequent reporting period, we re-evaluate the estimated variable consideration included in the transaction price and any related constraint and, if necessary, adjust our estimate of the overall transaction price.

To determine the allocation of the transaction price to the performance obligations, we apply the adjusted market assessment approach. Using this approach, we evaluate the market in which we sell the services and estimate the price that a customer in that market would be willing to pay for those services.

To select the measure of progress, we consider the expectations of the performance period which may be based on customer-dependent estimates of samples or internal estimates of the performance period based on both the customer and our expected development timeframes. For our collaboration with Genentech, we estimate the extent of progress using a proportional performance model that uses an input method based on costs incurred relative to the total estimated costs of research and development efforts to pursue both the Shared Product and Personalized Product pathways. These estimates are based on our internal estimates and development timeframes, which are subject to revision based on the potential outcomes for both product pathways, decisions made by Genentech, regulatory feedback or other factors not currently known. We regularly review our expectations of the extent of progress, including whether any variable consideration is no longer constrained, and, if any changes in estimates are made, we recognize revenue using the cumulative catch-up method.

Share-Based Compensation

We measure share-based compensation expense for stock options granted to our employees and non-employee directors on the date of grant and recognize the corresponding compensation expense of those awards over the requisite service period, which is generally the vesting period of the respective award.

We estimate the fair value of stock options granted to our employees and non-employee directors on the grant date using the Black-Scholes option-pricing model. The Black-Scholes option-pricing model requires the use of assumptions regarding a number of variables that are complex, subjective and generally require significant judgment to determine. The assumptions used to calculate the grant date fair value of our stock options were:

Fair value of common stock

Prior to the closing of our initial public offering, the fair value of our common stock issuable upon exercise of stock options was determined by our board of directors, with input from management and independent third-party valuations, as discussed in “—Common Stock Valuations” below. For valuations of option grants made after the closing of our initial public offering, our board of directors determines the fair value of each share of common stock 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

Our expected term represents the period that our stock options are expected to be outstanding. The expected term of 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 option.

Expected volatility

As we do not have sufficient trading history for our common stock, the expected volatility is based on the historical volatility of our publicly traded industry peers utilizing a period of time consistent with our estimate of the expected term. The comparable companies are chosen based on their similar size, stage in the life cycle or area of specialty.

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 term of the options.

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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.

Black-Scholes assumptions

The estimated grant date fair value of options granted during the periods presented was estimated using the Black-Scholes option-pricing model with the following assumptions:

Year Ended December 31,

Expected dividend yield — — —

We account for forfeitures as they occur, rather than estimate expected forfeitures over the vesting period of the respective grant.

We use judgment in evaluating the assumptions related to our share-based compensation on a prospective basis. As we continue to accumulate additional data related to our common stock, we may have refinements to our estimates, which could materially impact our future share-based compensation expense. As of December 31, 2020, unrecognized share-based compensation expense related to unvested stock options was $74.9 million, which was expected to be recognized over a remaining weighted-average period of 3.0 years.

Common Stock Valuations

For periods prior to the closing of our initial public offering, the estimated fair value of the common stock issuable upon exercise of our stock options was determined by our board of directors, with input from management, considering our most recently available third-party valuations of common stock and our board of directors’ assessment of additional objective and subjective factors that it believed were relevant, and factors that may have changed from the date of the most recent valuation through the date of the grant, which intended all options granted to be exercisable at a price per share not less than the fair market value per share of our common stock issuable upon exercise of those options on the date of grant. We believe our board of directors had the relevant experience and expertise to determine the fair value of our common stock. Prior to our initial public offering, given the absence of a public trading market for our common stock, the valuations of our common stock were determined in accordance with the guidelines outlined in the American Institute of Certified Public Accountants Practice Aid, Valuation of Privately-Held-Company Equity Securities Issued as Compensation. The assumptions we used in the valuation model were based on future expectations combined with management’s judgment. In the absence of a public trading market, our board of directors, with input from management, exercised significant judgment and considered numerous objective and subjective factors to determine the fair value of our common stock as of the date of each option grant, including the following factors:

• our operating and financial performance, forecasts and capital resources;

• current business conditions;

• the hiring of key personnel;

• our stage of commercialization;

• the status of research and development efforts;

• trends and developments in our industry;

• the market performance of comparable publicly traded technology companies; and

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• the U.S. and global economic and capital market conditions.

In valuing our common stock prior to the closing of our initial public offering, we utilized a hybrid methodology that includes a probability-weighted expected return method (“PWERM”) and an option pricing method (“OPM”), which is a highly complex and subjective valuation methodology. Under a PWERM, the fair market value of the common stock is estimated based upon an analysis of future values for the enterprise assuming various future outcomes. Within one of those potential outcomes, we utilized the OPM. The OPM treats the rights of the holders of convertible preferred stock and common stock as equivalent to that of call options on any value of the enterprise above certain break points of value based upon the liquidation preferences of the holders of preferred stock, as well as their rights to participation and conversion. Based on the timing and nature of an assumed liquidity event in each scenario, a discount for lack of marketability either was or was not applied to each scenario, as appropriate. We then probability-weighted the value of each expected outcome to arrive at an estimate of fair value per share of common stock.

For valuations after the closing of our initial public offering, our board of directors determines the fair value of each share of common stock 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.

Goodwill

Goodwill represents the excess of the purchase price over the net amount of identifiable assets acquired and liabilities assumed in a business combination measured at fair value. We assess goodwill for impairment annually on October 1 and upon any occurrence of triggering events or substantive changes in circumstances that could indicate a potential impairment.

We evaluate goodwill for impairment by first assessing qualitative factors to determine whether it is more likely than not that the fair value of our reporting unit is less than its carrying amount. We evaluate certain qualitative factors such as macroeconomic conditions, the market and industry in which we operate, cost factors, overall financial performance and other relevant entity-specific events to determine if there are any negative trends or events that could indicate impairment. Key assumptions in this analysis include anticipated demand for our products and services, including industry and regulatory changes, future revenue growth and cash, cash equivalents and marketable securities on hand. These assumptions are determined based on our historical performance and management’s forecasted results. Management’s estimates of forecasted results are based upon assumptions believed to be reasonable, but which are inherently uncertain and unpredictable and, as a result, actual results may differ from estimates. If we determine that it is more likely than not that the fair value of our reporting unit is less than its carrying amount, or if we choose to bypass the qualitative assessment, we perform a quantitative goodwill impairment test. Goodwill impairment exists when the estimated fair value of our one reporting unit is less than its carrying value. If impairment exists, the carrying value of the goodwill is reduced to fair value through an impairment charge recorded in our statements of operations. To date, we have not recognized any impairment of goodwill.

Recent Accounting Pronouncements

See Note 2 to our financial statements included elsewhere in this Annual Report on Form 10-K for more information.

Item 7A. 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 December 31, 2020 and 2019, we had cash and cash equivalents of $123.4 million and $96.6 million, respectively, held primarily in cash deposits and money market funds. As of December 31, 2020, we had short-term and long-term marketable securities of $683.4 million, held in U.S. government debt securities and corporate bonds. As of December 31, 2019, we had short-term and long-term marketable securities of $585.7 million, held in U.S. government debt securities, commercial paper and corporate bonds. Our primary exposure to market risk is interest income sensitivity, which is affected by changes in the general level of interest rates in the United States. As of December 31, 2020, a hypothetical 100 basis point increase in interest rates would have resulted in a $4.3 million decline of the fair value of our available-for-sale securities, as compared to an approximate $3.0 million decline as of December 31, 2019. The additional decline of fair value in this hypothetical scenario is primarily due a larger investment balance as of December 31, 2020 compared to that as of December 31, 2019. This estimate is based on a sensitivity model that measures market value changes when changes in interest rates occur. Such losses would only be realized if we sold the investments prior to maturity. We do not enter into investments for trading purposes and have not used any derivative financial instruments to manage our interest rate risk exposure.

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Item 8. Financial Statements and Supplementary Data

Adaptive Biotechnologies Corporation

Index to Financial Statements

As of December 31, 2020 and 2019 and

For the Years Ended December 31, 2020, 2019 and 2018

Report of Independent Registered Public Accounting Firm 103

Balance Sheets 105

Statements of Operations 106

Statements of Comprehensive Loss 107

Statements of Convertible Preferred Stock and Shareholders’ (Deficit) Equity 108

Statements of Cash Flows 109

Notes to Financial Statements 110

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Report of Independent Registered Public Accounting Firm

To the Shareholders and the Board of Directors of Adaptive Biotechnologies Corporation

Opinion on the Financial Statements

We have audited the accompanying balance sheets of Adaptive Biotechnologies Corporation (the Company) as of December 31, 2020 and 2019, the related statements of operations, comprehensive loss, convertible preferred stock and shareholders' (deficit) equity and cash flows for each of the three years in the period ended December 31, 2020, and the related notes (collectively referred to as the “financial statements”). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2020 and 2019, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2020, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2020, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 24, 2021 expressed an unqualified opinion thereon.

Basis for Opinion

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

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

Critical Audit Matters

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

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Estimation of Total Expected Costs of Genentech Agreement

/s/ Ernst & Young LLP

We have served as the Company’s auditor since 2015

Seattle, Washington

February 24, 2021

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AdaptiveBiotechnologiesCorporation

BalanceSheets

(inthousands,exceptshareandper shareamounts)

December 31,

Assets

Current assets

Prepaid expenses and other current assets 14,535 14,079

Long-term assets

Operating lease right-of-use assets 99,350 —

Liabilities and shareholders’ equity

Current liabilities

Accrued compensation and benefits 11,950 8,124

Current portion of deferred rent — 371

Current portion of operating lease liabilities 3,529 —

Long-term liabilities

Deferred rent liability, less current portion — 6,918

Operating lease liabilities, less current portion 104,333 —

Financing obligation — 36,607

Other long-term liabilities — 93

Commitments and contingencies (Note 11)

Shareholders’ equity

Accumulated other comprehensive gain 893 671

Theaccompanying notesareanintegralpartofthesefinancial statements.

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AdaptiveBiotechnologiesCorporation

Statements of Operations

(inthousands,exceptshareandper shareamounts)

Year Ended December 31,

Revenue

Operating expenses

Theaccompanyingnotes are an integralpart of these financialstatements.

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AdaptiveBiotechnologiesCorporation

Statements of ComprehensiveLoss

(inthousands)

Year Ended December 31,

Change in unrealized gain (loss) on investments 222 778 59

Theaccompanyingnotes are an integralpart of these financialstatements.

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AdaptiveBiotechnologiesCorporation

Statements of Convertible Preferred StockandShareholders’ (Deficit) Equity

(inthousands,exceptshareamounts)

Shares Amount Shares Amount Capital (Loss) Gain Deficit Equity

Common stock option share-based compensation — — — — 11,146 — — 11,146

Other comprehensive income — — — — — 59 — 59

Initial public offering costs — — — — (4,986 ) — — (4,986 )

Vesting of restricted stock units — — 8,310 — — — — —

Other comprehensive income — — — — — 778 — 778

Vesting of restricted stock units — — 4,500 — — — — —

Other comprehensive income — — — — — 222 — 222

Theaccompanying notesareanintegralpartofthesefinancial statements.

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AdaptiveBiotechnologiesCorporation

Statements of CashFlows

(inthousands)

Year Ended December 31,

Operating activities

Noncash lease expense 3,266 — —

Fair value adjustment of convertible preferred stock warrant — 2,266 (6 )

Changes in operating assets and liabilities:

Prepaid expenses and other current assets (1,362 ) (8,576 ) (318 )

Operating lease liabilities (886 ) — —

Investing activities

Net cash (used in) provided by investing activities (117,044 ) (481,697 ) 736

Financing activities

Payment of public offering costs, net (321 ) (4,986 ) —

Noncash investing and financing activities

Landlord-funded leasehold improvements $ — $ — $ 2,419

Theaccompanyingnotes are an integralpart of these financialstatements.

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AdaptiveBiotechnologiesCorporation

Notesto Financial Statements

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, autoimmune conditions and infectious diseases.

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.

Initial Public Offering

Our registration statement on Form S-1 related to our initial public offering was declared effective on June 26, 2019 and our common stock began trading on the Nasdaq Global Select Market on June 27, 2019. On July 1, 2019, we completed our initial public offering in which we issued and sold 17,250,000 shares of common stock, including shares issued upon the exercise in full of the underwriters’ over-allotment option, at a public offering price of $20.00 per share. We received $315.9 million in net proceeds, after deducting underwriting discounts and commissions of $24.1 million and offering expenses of $5.0 million.

Follow-On Offering

In July 2020, we completed an underwritten public offering of our common stock in which we issued and sold 7,200,000 shares of common stock, including shares issued upon the exercise in full of the underwriters’ over-allotment option, at a public offering price of $40.00 per share. We received $271.8 million in net proceeds, after deducting underwriting discounts and net offering expenses paid by us.

2. Significant Accounting Policies

Basisof Presentation andUseof Estimates

The preparation of financial statements in conformity with 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 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, including the fair value of stock, the provision for income taxes, including related reserves, and goodwill, 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.

JOBS Act Accounting Election

Effective December 31, 2020, we are no longer an “emerging growth company” within the meaning of the Jumpstart Our Business Startups Act of 2012 (“JOBS Act”). The JOBS Act allows an emerging growth company to delay the adoption of new or revised accounting standards that have different effective dates for public and private companies until those standards apply to private companies. Prior to December 31, 2020, we had elected to use this extended transition period and, as a result, our financial statements may not be comparable to companies that comply with public company effective dates. We can no longer take advantage of this extended transition period.

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AdaptiveBiotechnologiesCorporation

Notes to Financial Statements (Continued)

Cash and Cash Equivalents

Cash and cash equivalents are stated at fair value. Cash equivalents include only securities having an original maturity of three months or less at the time of purchase. We limit our credit risk associated with cash and cash equivalents by placing our investments with banks that we believe are highly creditworthy and with highly rated money market funds. Cash and cash equivalents primarily consist of bank deposits and investments in money market funds.

Restricted Cash

We are required to maintain certain balances under lease arrangements for some of our property and facility leases. We had restricted cash of $2.1 million as of December 31, 2020 and 2019.

Investments in Marketable Securities

Marketable securities are classified as available-for-sale, primarily consist of U.S. government debt securities, commercial paper and corporate bonds and are reported at fair value. Unrealized holding gains and losses are reflected as a separate component of shareholders’ (deficit) equity in accumulated other comprehensive (loss) gain until realized. Realized gains and losses on the sale of these securities are recognized in net income or loss. The cost of marketable securities sold is based on the specific identification method.

Concentrationsof Risk

We are subject to a concentration of risk from a limited number of suppliers, or in some 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, U.S. government debt securities, U.S. government agency securities, commercial paper and corporate bonds with high-quality accredited financial institutions.

Significant customers are those that represent more than 10% of our total revenue or accounts receivable, net balances for the periods and as of each balance sheet date presented, respectively. Revenue from these customers reflects their purchase of our products and services and our collaboration efforts with Genentech.

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

Year Ended December 31, December 31,

Customer C * * 15.4 * *

Genentech, Inc. and Roche Group 55.8 42.1 * * *

* less than 10%

Accounts Receivable

Accounts receivable consists of amounts due from customers for services performed. We review our accounts receivable for credit impairment and regularly analyze the status of significant past due receivables to determine if any will potentially be uncollectible to estimate the amount of allowance necessary to reduce accounts receivable to its estimated net realizable value.

Additionally, we had $0.9 million and $2.4 million of unbilled receivables as of December 31, 2020 and 2019, respectively. The unbilled receivables are amounts that will become due for which we have an unconditional right to consideration.

Inventory

Inventory consists of laboratory materials and supplies used in lab analysis. We capitalize inventory when purchased and record expense upon order fulfillment for servicing revenue or utilization in our research and development laboratories. Inventory is valued at the lower of cost or market on a first-in, first-out basis. We periodically perform obsolescence assessments and write off any inventory that is no longer usable.

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AdaptiveBiotechnologiesCorporation

Notes to Financial Statements (Continued)

Property and Equipment

Property and equipment consists of computer equipment, computer software, laboratory equipment, leasehold improvements and furniture and office equipment. Property and equipment are recorded at cost and depreciation is recognized using the straight-line method based on estimated useful life. Maintenance and repairs are charged to expense as incurred and costs of improvements are capitalized.

Useful lives assigned to property and equipment are as follows:

Laboratory equipment 3 years to 7 years

Leasehold improvements Shorter of estimated useful life or remaining lease term

Computer equipment and software 3 years

Furniture and office equipment 5 years to 10 years

We review long-lived assets for impairment whenever events or circumstances indicate the carrying amount of an asset group may not be recoverable. Gains and losses from asset disposals and impairment losses are classified within our statements of operations in accordance with the use of the asset.

Goodwill

Goodwill represents the excess of the purchase price over the net amount of identifiable assets acquired and liabilities assumed in a business combination measured at fair value. We assess goodwill for impairment annually on October 1, or more frequently if events or changes in circumstances would more likely than not reduce the fair value of our single reporting unit below its carrying value. We evaluate goodwill for impairment by first assessing qualitative factors to determine whether it is more likely than not that the fair value of our reporting unit is less than its carrying amount. If we so determine, or if we choose to bypass the qualitative assessment, we perform a quantitative goodwill impairment test. Goodwill impairment exists when the estimated fair value of our one reporting unit is less than its carrying value. If impairment exists, the carrying value of the goodwill is reduced to fair value through an impairment charge recorded in our statements of operations. To date, we have not recognized any impairment of goodwill.

Intangible Assets

Intangible assets acquired in a business combination are recognized separately from goodwill and are initially recognized at their fair value at the acquisition date, which is regarded as their cost.

Intangible assets may also result from the purchase of assets and intellectual property in a transaction that does not qualify as a business combination. Intangible assets are amortized over their estimated useful lives on a straight-line basis which approximates their usage pattern. Intangible assets are reviewed for impairment at least annually or if indicators of potential impairment exist. We have not recognized any impairment losses on intangible assets.

Leases

We determine if an arrangement contains a lease at inception. We have operating lease agreements for the laboratory and office facilities that we occupy, as well as server space. Operating lease right-of-use (“ROU”) assets and operating lease liabilities are recognized at the date the underlying asset becomes available for our use and are based on the present value of the future minimum lease payments over the lease term. ROU assets also include any initial direct costs incurred and any lease payments made at or before the lease commencement date, less lease incentives received. As our leases generally do not provide an implicit interest rate, the present value of our future minimum lease payments is determined using our incremental borrowing rate. This rate is an estimate of the collateralized borrowing rate we would incur on our future lease payments over a similar term and is based on the information available to us at the lease commencement date, or as of January 1, 2020 for commenced leases that existed as of our adoption of the new lease standard, discussed in more detail below.

Certain of our leases contain options to extend or terminate the lease; lease terms are adjusted for these options only when it is reasonably certain we will exercise these options. Our lease agreements do not contain residual value guarantees or covenants.

We have made a policy election regarding our real estate leases not to separate nonlease components from lease components, to the extent they are fixed. Nonlease components that are not fixed are expensed as incurred as variable lease expense. Our leases for laboratory and office facilities typically include variable nonlease components, such as common-area maintenance costs. We have also elected not to record on the balance sheet a lease that has a lease term of twelve months or less and does not contain a purchase option that we are reasonably certain to exercise.

Lease expense is recognized on a straight-line basis over the terms of the leases. Incentives granted under our facilities leases, including rent holidays, are recognized as adjustments to lease expense on a straight-line basis over the terms of the leases.

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AdaptiveBiotechnologiesCorporation

Notes to Financial Statements (Continued)

Lease Financing Arrangements

In 2019, due to our significant involvement during the construction process of a leased building, we qualified as the deemed owner of the building under build-to-suit lease accounting guidance. Prior to our adoption of the new lease standard, the cost of the related building was recorded in property and equipment, net and the offsetting lease financing obligation was recorded as a long-term financing obligation on our balance sheet. As of December 31, 2019, $36.6 million of building costs was recorded in property and equipment, net.

Fair Value of Financial Instruments

The Financial Accounting Standards Board (“FASB”) has defined fair value as the exchange price that would be received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous market for that asset or liability in an orderly transaction between market participants on the measurement date. The FASB established a fair value hierarchy that requires an entity to maximize the use of observable inputs, where available, and minimize the use of unobservable inputs when measuring fair value. The hierarchy defines three levels of inputs that may be used to measure fair value:

• Level 1: Quoted prices in active markets for identical assets or liabilities.

A financial instrument categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Our financial instruments consist of Level 1 and Level 2 assets and has included Level 3 liabilities in the past. In certain cases, where there is limited activity or less transparency around inputs to valuation, financial instruments are classified as Level 3 within the valuation hierarchy. The carrying amounts of certain financial instruments approximate fair value due to their short maturities.

We did not have any nonfinancial assets or liabilities that were measured or disclosed at fair value on a recurring basis as of December 31, 2020 or 2019.

Convertible Preferred Stock Warrant Liability

We had issued a freestanding warrant to a venture capital firm to purchase 56,875 shares of Series C convertible preferred stock with an exercise price of $2.64 in connection with a $5.0 million credit facility entered into in 2014. Immediately prior to and in connection with the completion of our initial public offering, the convertible preferred stock warrant converted to a common stock warrant.

Prior to the conversion, the fair value of this warrant was classified as a non-current liability in the balance sheets, since the underlying convertible preferred stock had been classified as temporary equity instead of shareholders’ deficit in accordance with authoritative guidance for the classification and measurement of potentially redeemable securities. Upon certain change in control events that were outside of our control, including liquidation, sale or transfer of control, holders of the convertible preferred stock may have caused its redemption. Prior to conversion, the warrant was subject to remeasurement at each balance sheet date, with changes in estimated fair value recognized as a component of interest and other income, net on our statements of operations. During the year ended December 31, 2019, we recognized $2.3 million of expense related to the revaluation of the convertible preferred stock warrant liability in the interest and other income, net line item on our statements of operations.

When the convertible preferred stock warrant converted to a common stock warrant immediately prior to and in connection with the completion of the initial public offering, the $2.6 million financial liability was reclassified to the additional paid-in capital line item on our balance sheet, thereby concluding the need for revaluation.

RevenueRecognition

We recognize revenue in accordance with ASC Topic 606 (“ASC 606”), Revenue from Contracts with Customers. Under ASC 606, 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. The following is a summary of the application of the respective model to each of our revenue classifications.

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AdaptiveBiotechnologiesCorporation

Notes to Financial Statements (Continued)

Overview

Our revenue is generated from immunosequencing (“sequencing”) products and services (“sequencing revenue”) and from regulatory or development support services leveraging our immune medicine platform (“development revenue”). When revenue generating contracts have elements of both sequencing revenue and development revenue, we classify revenue based on the nature of the performance obligation and the allocated transaction price.

Sequencing Revenue

Sequencing revenue reflects the amounts generated from providing sequencing services and testing through our clonoSEQ and immunoSEQ products and services to our clinical and research customers, respectively.

For clinical customers, we derive revenues from providing our clonoSEQ test report to ordering physicians, and we bill and receive payments from medical institutions and commercial and government third-party payors. In these transactions, we have identified one performance obligation: the delivery of a clonoSEQ report. 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.

For our clonoSEQ coverage under Medicare, we bill an episode of treatment when we deliver the first eligible test results. 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 result 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 as we deliver the remaining tests in a patient’s treatment cycle or when it becomes remote that a patient will receive additional testing and we have not delivered our estimate of total tests.

For research customers, 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: sequencing services and related data analysis. We recognize revenue for both identified performance obligations as sample results are delivered to the customer.

DevelopmentRevenue

We derive revenue by providing services through development agreements to biopharmaceutical customers who seek access to our immune medicine platform technologies. We generate revenues from the delivery of professional support activities pertaining to the use of immunoSEQ and our MRD product in the development of the respective customers’ initiatives. The transaction price for these contracts may consist of a combination of non-refundable upfront fees, separately priced sequencing fees, progress-based milestones and regulatory milestones. The development agreements may include single or multiple performance obligations, depending on the contract. For certain contracts, we may perform services to support the biopharmaceutical customers’ regulatory submissions as part of their registrational trials. These services include regulatory support pertaining to our technology intended to be utilized as part of the submission, development of analytical plans for our sequencing data, participation on joint research committees and assistance in completing a regulatory submission. Generally, these services are not distinct within the context of the contract and they are accounted for as a single performance obligation.

When sequencing services are separately priced customer options, we assess if a material right exists and, if not, the customer option to purchase additional sequencing services is not considered part of the contract. Except for any non-refundable upfront fees, the other forms of compensation represent variable consideration. Variable consideration related to progress-based and 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 recognized will not occur. Progress milestones, such as the first sample result delivered or final patient enrollment in a customer trial, are customer dependent and are included in the transaction price when the respective milestone is probable of occurring. Milestone payments that are not within our customers’ control, such as regulatory approvals, 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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The primary method used to estimate standalone selling price for performance obligations is the adjusted market assessment approach. Using this approach, we evaluate the market in which we sell our services and estimate the price that a customer in that market would be willing to pay for our services. We recognize revenue using either an input or output measure of progress that faithfully depicts performance on a contract, depending on the contract. The measure used is dependent on the nature of the service to be provided in each contract. Selecting the measure of progress and estimating progress to date requires significant judgment.

Contract Balances

In certain circumstances, billing may occur prior to services being performed. Upfront payments are recorded as deferred revenue, contract liabilities. We classify deferred revenue as current for sequencing revenue, as we expect our performance obligations will be completed within the next twelve months; however, we do not control the timing of customer provided samples. For development services, we assess the performance obligations and recognize deferred revenue as current or non-current based upon forecasted delivery times, which are customer coordinated. In certain circumstances, the customer project may be cancelled or terminated prior to the delivery of all related services covered by a customer’s upfront payment. In these circumstances, we recognize revenue when sufficient evidence is obtained that a reversal of revenue is not probable.

Share-Based Compensation

Share-based compensation includes compensation expense for stock option and restricted stock unit grants to employees and non-employees. It represents the grant date fair value of the grants and is recognized over the requisite service period of the awards, usually the vesting period, on a straight-line basis, net of actual forfeitures. We estimate the grant date fair value of stock option grants using the Black-Scholes option-pricing model.

Advertising

Advertising costs are expensed as incurred. Advertising expenses were $14.5 million, $6.6 million and $3.5 million for the year ended December 31, 2020, 2019 and 2018, respectively.

Cost of Revenue

Cost of revenue includes the cost of materials, personnel-related expenses (comprised of salaries, benefits and share-based compensation), shipping and handling, equipment and allocated facility costs associated with processing samples and professional support for our sequencing revenue. Allocated facility costs include depreciation of laboratory equipment, allocated facility occupancy and information technology costs. Costs associated with processing samples are recorded as expense, regardless of the timing of revenue recognition.

Research and Development Expenses

Research and development expenses are comprised of laboratory materials costs, personnel-related expenses, equipment costs, allocated facility costs, information technology expenses and contract service expenses. 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. Research and development costs are expensed as incurred. Upfront payments for goods or services that will be used or rendered for future research and development activities are deferred and capitalized, then are recognized as an expense as the goods are consumed or the related services are performed. Costs to support our Genentech Agreement are a component of our research and development activities.

Sales and Marketing Expenses

Sales and marketing expenses consist primarily of personnel-related expenses for commercial sales, 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.

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Income Taxes

Income taxes are accounted for under the liability method. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to the differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, and the operating loss and tax credit carryforwards. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be realized.

Deferred tax assets and liabilities are measured at the balance sheet date using the enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities due to a change in tax rates is recognized in the period such tax rate changes are enacted. Our net deferred tax assets are fully offset by a valuation allowance, because of our history of losses.

We recognize the effect of income tax positions only if those positions are more likely than not of being sustained upon examination.

Net Loss Per Share Attributable to Common Shareholders

We calculate basic net loss per share attributable to common shareholders by dividing the net loss attributable to common shareholders by the weighted-average number of shares of common stock outstanding for the period. The diluted net loss per share attributable to common shareholders is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period determined using the treasury stock method. For purposes of this calculation, common stock warrants, stock options and nonvested restricted stock units are considered common stock equivalents but have been excluded from the calculation of diluted net loss per share attributable to common shareholders, as their effect is anti-dilutive.

Prior to the closing of our initial public offering in July 2019 and the related conversion of our convertible preferred stock into common stock, we calculated our basic and diluted net loss per share attributable to common shareholders in conformity with the two-class method required for companies with participating securities. We considered our convertible preferred stock to be participating securities. In the event a dividend had been declared or paid on common stock, holders of convertible preferred stock would have been entitled to a share of such dividend in proportion to the holders of common stock on an as-if converted basis. Under the two-class method, basic net loss per share attributable to common shareholders is calculated by dividing the net loss attributable to common shareholders by the weighted-average number of shares of common stock outstanding for the period. Net loss attributable to common shareholders is determined by allocating undistributed earnings between common and preferred shareholders. The net loss attributable to common shareholders was not allocated to the convertible preferred stock under the two-class method, as the convertible preferred stock did not have a contractual obligation to share in our losses. The diluted net loss per share attributable to common shareholders was computed by giving effect to all potential dilutive common stock equivalents outstanding for the period determined using the treasury stock method. For purposes of this calculation, convertible preferred stock, convertible preferred stock warrants, common stock warrants and stock options were considered common stock equivalents but were excluded from the calculation of diluted net loss per share attributable to common shareholders, as their effect was anti-dilutive.

Segment Information

We have determined that our chief executive officer is the chief operating decision maker (“CODM”). The CODM reviews financial information presented on a regular basis at the entity level. Resource allocation decisions are made by the CODM based on the results at the entity level, which is determined to be a single reporting unit. There are no segment managers who are held accountable by the CODM for operations, operating results or planning for levels or components below the entity. As such, we have concluded that we operate as one segment. We present disaggregated revenue from contracts with customers by type of service. See Note 3, Revenue.

Recently Adopted AccountingPronouncements

In February 2016, the FASB issued Accounting Standards Update (“ASU”) No. 2016-02, Leases (Topic 842) (“ASC 842”), intended to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheets and disclosing key information about leasing arrangements. We adopted the guidance effective January 1, 2020 using the optional transition method described in ASU 2018-11, Leases (Topic 842) Targeted Improvements. Under the optional transition method, we recognized a cumulative-effect adjustment in the period of adoption. Prior period amounts were not adjusted and continue to be reported in accordance with the previous accounting under ASC 840, Leases (“ASC 840”).

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In adopting the new standard, we utilized certain practical expedients available. These practical expedients include waiving reassessment of (1) whether any expired or existing contracts are or contain leases; (2) lease classification of expired or existing leases; and (3) initial direct costs for existing leases. We also elected to use hindsight in determining the lease term and in assessing impairment of our ROU assets. Furthermore, we have made a policy decision regarding our real estate leases not to separate nonlease components from lease components, to the extent they are fixed. We have also elected not to record on the balance sheet a lease that has a lease term of twelve months or less and does not contain a purchase option that we are reasonably certain to exercise.

The standard had a material impact on our balance sheet as of December 31, 2020, but did not have a material impact on our statements of operations or statements of cash flows. The most significant impact was the recognition of $33.0 million and $39.7 million of operating lease ROU assets and liabilities, respectively, and the derecognition of a $36.6 million asset and corresponding liability previously recorded pursuant to build-to-suit lease accounting guidance under ASC 840, which resulted in an increase to retained earnings of $0.1 million. The operating lease ROU assets and liabilities recorded at adoption included the derecognition of $7.3 million of deferred rent recognized as of December 31, 2019, as well as a $0.5 million reclassification of tenant incentive receivables previously recognized in the prepaid expenses and other current assets line item on our balance sheet. See Note 10, Leases, for additional information regarding leases.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which amends the impairment model by requiring entities to use a forward-looking approach based on expected losses to estimate credit losses on certain types of financial instruments, including trade receivables. The expected credit losses are recorded through an allowance account that is deducted from the amortized cost basis of the financial asset, and the net carrying value of the financial asset is presented on the balance sheet. The guidance also amends the previous other-than-temporary impairment model for available-for-sale debt securities by requiring the recognition of impairments relating to credit losses through an allowance account, limited to the difference between a security’s amortized cost basis and its fair value. Furthermore, the standard update removes the distinction between whether an impairment is temporary or other-than temporary. We adopted the guidance effective January 1, 2020. Given the short-term nature of our accounts receivable, the adoption as it relates to trade receivables did not have a significant impact on our financial statements. Furthermore, impairment of available-for-sale debt securities as of the adoption date was determined to be due to factors other than credit loss; therefore, a credit allowance was not recognized.

In August 2018, the FASB issued ASU No. 2018-15, Intangibles—Goodwill and Other: Internal-Use Software (Subtopic 350-40) to provide additional guidance on the accounting for costs of implementation activities performed in a cloud computing arrangement. We adopted this guidance effective January 1, 2020 on a prospective basis, and the adoption did not have any impact on our financial statements.

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which eliminates certain exceptions to the guidance in ASC 740 related to the approach for intraperiod tax allocation, the methodology for calculating income taxes in an interim period and the recognition of deferred tax liabilities for outside basis differences. Among other things, this guidance also clarifies the accounting for transactions that result in a step-up in the tax basis of goodwill. This guidance is effective for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. Early adoption is permitted, and the guidance is to be applied prospectively, except for certain amendments. We early adopted the guidance on January 1, 2020 and the adoption did not have a material impact on our financial statements.

3. Revenue

We disaggregate our revenue from contracts with customers by type of service, 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 revenue disaggregated by type of products and services for the periods presented (in thousands):

Year Ended December 31,

Development revenue

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Translational DevelopmentAgreement

In December 2015, we entered into a translational development agreement with a biopharmaceutical customer for access to certain of our oncology immunosequencing research datasets, including full-time employee support, to accelerate the customer’s preclinical, nonclinical and clinical trial testing. Under the initial terms of the agreement, we could have been entitled to up to $40.0 million over a period of four years, which did not include any separately negotiated research sequencing contracts. If the biopharmaceutical customer terminated the agreement prior to the end of the initial four-year research term for any reason other than a material uncured breach by us, then the biopharmaceutical partner agreed to pay us $0.8 million. In May 2019, the agreement was subsequently amended to reduce the services provided, which in turn reduced the fourth year of eligible payments to $2.3 million.

We identified one performance obligation under this agreement, as the services were determined to be highly interrelated. We determined that any separately negotiated sequencing contracts are not performance obligations under the contract, as the contract did not contain any material rights related to such sequencing contracts. For the identified performance obligation, we assessed the work to be performed over the duration of the contract and determined that it was a consistent level of support throughout the period, and therefore, revenue was recognized on a straight-line basis over the contract term.

Revenue recognized from this translational development agreement, excluding separately negotiated research sequencing contracts, was $2.3 million and $9.3 million during the year ended December 31, 2019 and 2018, respectively.

MRD DevelopmentAgreements

We have entered into agreements with biopharmaceutical customers to further develop and commercialize our MRD product and the biopharmaceutical customers’ therapeutics. Under each of the agreements, we received or will receive non-refundable upfront payments and could receive substantial additional payments upon reaching certain progress milestones or achievement of certain regulatory milestones pertaining to the customers’ therapeutics and our MRD product.

Under the contracts, we identify performance obligations, which may include: (1) obligations to provide services supporting the customer’s regulatory submission activities as they relate to our MRD product; and (2) sequencing services related to customer-provided samples for their regulatory submissions. 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 immunosequencing services. At contract inception, we fully constrain any consideration related to the regulatory milestones, as the achievement of such milestones is subject to third-party regulatory approval and the customers’ own submission decision-making. We recognize revenue relating to the sequencing services as sequencing revenue 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 and 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 based on estimates of effort completed using a cost-based model.

We earned $2.5 million, $2.0 million and $10.0 million during the year ended December 31, 2020, 2019 and 2018, respectively, upon the achievement of certain regulatory milestones by us and our respective customers’ therapeutics. All $2.5 million, $2.0 million and $10.0 million was recognized as revenue within the respective periods, as we determined these amounts were consistent with our estimated standalone selling price and the respective performance obligations were complete. We recognized $3.4 million, $3.7 million and $12.8 million in development revenue related to these contracts, inclusive of the milestones, during the year ended December 31, 2020, 2019 and 2018, respectively.

As of December 31, 2020, in future periods we could receive up to an additional $313.5 million in milestone payments if certain regulatory approvals are obtained by our customers’ therapeutics in connection with MRD data generated from our MRD product.

GenentechCollaboration Agreement

In December 2018, we entered into a worldwide collaboration and license agreement with Genentech (“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, 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 agreement, we are pursuing two product development pathways for novel T cell immunotherapies in which Genentech intends to use TCRs screened by our immune medicine platform to engineer and manufacture cellular medicines:

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Under the terms of the 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 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 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:

4. License to existing shared antigen data packages.

6. Research and development services for private product development.

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 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, as opposed to both. 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 transaction price as of December 31, 2020. We excluded 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.

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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 Product and Personalized Product pathways. When any of the potential regulatory and development milestones are no longer fully constrained and 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 the revenue over a period of approximately seven to eight years from the effective date. This estimate of the research and development period considers pursuit options of development activities supporting both the Shared Product and the 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.

We recognized revenue of $52.8 million and $35.1 million during the year ended December 31, 2020 and 2019, respectively, related to the Genentech Agreement. Costs related to the Genentech Agreement are included in research and development expenses.

4. Fair Value Measurements

The following tables set forth the fair value of financial assets as of December 31, 2020 and 2019 that were measured at fair value on a recurring basis (in thousands):

Level 1 Level 2 Level 3 Total

Financial assets

Level 1 Level 2 Level 3 Total

Financial assets

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 debt securities, commercial paper and corporate bonds, and are valued based on recent trades of securities in inactive markets or based on quoted market prices of similar instruments and other significant inputs derived from or corroborated by observable market data.

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5. Investments

Available-for-sale investments consisted of the following as of December 31, 2020 and 2019 (in thousands):

Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value

Short-term marketable securities

Long-term marketable securities

Amortized Cost Unrealized Gain Unrealized Loss Estimated Fair Value

Short-term marketable securities

Long-term marketable securities

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

Accrued interest receivables are excluded from the amortized cost and estimated fair value of our marketable securities. Accrued interest receivables of $2.5 million and $2.2 million were presented separately within the prepaid expenses and other current assets line item on our balance sheet as of December 31, 2020 and 2019, respectively. We have made an accounting policy election to not measure an allowance for credit losses for accrued interest receivables.

The following table presents the gross unrealized holding losses and fair value for investments in an unrealized loss position and the length of time that individual securities have been in a continuous loss position as of December 31, 2020 (in thousands):

Less Than 12 Months 12 Months Or Greater

Fair Value Unrealized Loss Fair Value Unrealized Loss

U.S. government debt securities $ 177,554 $ (12 ) $ — $ —

Corporate bonds 1,512 (2 ) — —

Total available-for-sale securities $ 179,066 $ (14 ) $ — $ —

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 December 31, 2020, 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 December 31, 2020 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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6. Property and Equipment, Net

Property and equipment, net as of December 31, 2020 and 2019 consisted of the following (in thousands):

December 31,

Furniture and office equipment 2,717 1,568

Build-to-suit asset cost — 36,607

Depreciation expense was $6.8 million, $6.1 million and $4.3 million for the year ended December 31, 2020, 2019 and 2018, respectively.

7. Goodwill and Intangible Assets

There have been no changes in the carrying amount of goodwill since its recognition in 2015.

Intangible assets subject to amortization as of December 31, 2020 and 2019 consisted of the following (in thousands):

Gross Carrying Amount Accumulated Amortization Net Carrying Amount

Purchased intellectual property 325 (128 ) 197

Gross Carrying Amount Accumulated Amortization Net Carrying Amount

Purchased intellectual property 325 (96 ) 229

The developed technology was acquired in connection with our acquisition of Sequenta in 2015. The remaining balance of the acquired technology and the purchased intellectual property is expected to be amortized over the next 6.0 years.

As of December 31, 2020, expected future amortization expense for intangible assets was as follows (in thousands):

Total future amortization expense $ 10,225

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8. Accrued Liabilities

Accrued liabilities as of December 31, 2020 and 2019 consisted of the following (in thousands):

December 31,

Clinical and contract research organization costs 1,781 30

Travel and entertainment 91 157

Purchases of property and equipment 4,423 555

The accrued tax liabilities balance as of December 31, 2020 includes a $1.4 million tax withholding liability related to unsettled option exercises as of December 31, 2020. The accrued tax liabilities balance as of December 31, 2019 includes a $1.9 million tax withholding liability related to unsettled option exercises as of December 31, 2019.

9. Deferred Revenue

Deferred revenue by revenue classification as of December 31, 2020 and 2019 was as follows (in thousands):

December 31,

Current deferred revenue

Non-current deferred revenue

Total current and non-current deferred revenue $ 236,937 $ 280,326

Deferred revenue from our Genentech Agreement represents $55.1 million and $157.0 million of the current and non-current development deferred revenue balances, respectively, as of December 31, 2020 and $48.1 million and $216.8 million of the current and non-current development deferred revenue balances, respectively, as of December 31, 2019. In general, we expect that the current amounts will be recognized as revenue within 12 months and the non-current amounts will be recognized as revenue over a period of approximately six to seven years. 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 the various development activities.

Changes in deferred revenue during the year ended December 31, 2020 were as follows (in thousands):

Additions to deferred revenue during the period 26,434

Revenue recognized during the period (69,823 )

As of December 31, 2020, $61.6 million was recognized as revenue that was included in the deferred revenue balance at December 31, 2019. This is inclusive of $1.0 million of sequencing revenue recognized as a result of cancelled biopharmaceutical customer sequencing contracts and $0.6 million of sequencing revenue related to Medicare that was recognized due to our determination that additional testing for specific patients was remote.

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We have operating lease agreements for the laboratory and office facilities that we occupy in various locations, as well as server space.

In July 2011, we entered into a non-cancelable lease agreement with an, at the time, minority shareholder for our current headquarters in Seattle, Washington. The lease terms were subsequently amended multiple times, most recently in August 2019, when we expanded the existing premises to approximately 65,500 square feet. Cash payment for rent of the expanded premises commenced January 2020, four months after the landlord delivered the expanded premises to us for construction of certain tenant improvements, and the lease term for both the existing premises and the expanded premises ends October 2032, subject to our option to twice extend the lease for five years.The amended lease also requires us to pay additional amounts for operating and maintenance expenses.

In August 2019, we entered into an agreement to rent approximately 100,000 square feet in a to-be-constructed building in Seattle, Washington. In connection with the lease, we entered into a $2.1 million letter of credit with one of our existing financial institutions. Due to our significant involvement during the construction process of the leased building, we qualified as the deemed owner of the building under build-to-suit lease accounting guidance that proceeded ASC 842. The resulting asset and long-term financing obligation recorded on our balance sheet as of December 31, 2019 for the cost of the building was derecognized upon adoption of ASC 842. The lease commenced in December 2020, when the landlord delivered the premises to us for construction of certain tenant improvements. Cash payment for rent begins in October 2021 and the lease term ends in August 2033, subject to our option to twice extend the lease for five years. We plan to occupy the new building in 2021, once interior construction is finished. In connection with this lease, the landlord agreed to fund $20.0 million in improvements, which was subsequently reduced to $14.8 million as a result of our change requests made during landlord construction of the building, net of an administration fee. As of December 31, 2020, we have incurred $5.2 million in certain tenant improvement costs, of which $0.7 million has been reimbursed by the landlord. The remaining $4.5 million is presented as a reduction in the cash flows used to measure our ROU asset and lease liabilities on our balance sheet as of December 31, 2020 and will be reimbursed by the landlord. The lease also requires us to pay additional amounts for operating and maintenance expenses.

In October 2019, we entered into an agreement to lease approximately 14,750 square feet in a separate Seattle, Washington location, pursuant to a lease expiring in October 2029, which is subject to our ability to exercise an early termination right after the third year. In connection with the lease, the landlord has agreed to provide a tenant improvement allowance in the maximum amount of $0.7 million. The lease also requires us to pay additional amounts for operating expenses.

In April 2018, we entered into a lease agreement to lease approximately 13,400 square feet in South San Francisco, California. The lease term is through March 2026 and provides for one five-year extension option. We are responsible for our share of allocable operating expenses, tax expenses and utilities cost during the duration of the lease term. In connection with the lease, the landlord funded agreed-upon improvements. The landlord was solely responsible for the $2.4 million cost of such improvements. The lease agreement was amended in February 2020 to lease approximately 19,900 additional square feet and provides for a $0.6 million tenant improvement allowance.

In December 2019, we entered into an agreement to lease approximately 3,100 square feet of office space in New York City, New York, pursuant to a lease that expires November 2025, subject to our ability to exercise an early termination right in 2023.

As of December 31, 2020, we were not party to any finance leases. Our leases have remaining terms of 1.3 years to 12.7 years and include options to extend certain of the leases up to 10.0 years and terminate certain of the leases after 3.0 years. We adjust lease terms for these options only when it is reasonably certain we will exercise these options. As of December 31, 2020, it was reasonably certain that we would exercise our option to terminate two of our leases after 3.0 years.

Other information related to our operating leases as of December 31, 2020 was as follows:

Weighted-average remaining lease term (in years) 11.33

Weighted-average discount rate 4.6 %

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Notes to Financial Statements (Continued)

The following table reconciles our undiscounted operating lease cash flows to our operating lease liabilities as of December 31, 2020 (in thousands):

Total undiscounted lease payments 149,612

Less:

Imputed interest rate (35,848 )

Tenant improvement receivables (5,902 )

Total operating lease liabilities $ 107,862

Less: current portion (3,529 )

Operating lease liabilities, less current portion $ 104,333

Operating lease expense was $5.5 million for the year ended December 31, 2020. Variable lease expense for operating leases was $2.6 million for the year ended December 31, 2020.Rent expense recognized under ASC 840, inclusive of operating and maintenance costs, was $5.3 million and $4.1 million for the year ended December 31, 2019 and 2018, respectively.

Cash paid for amounts included in the measurement of lease liabilities for the year ended December 31, 2020 was $3.2 million, net of $2.5 million of cash received for tenant improvement allowances. For the year ended December 31, 2020, ROU assets obtained in exchange for operating lease liabilities was $109.1 million, inclusive of the $33.0 million recognized from the adoption of ASC 842.

11. 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 are not party to any material legal proceedings as of December 31, 2020.

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.

12. Shareholders’ Equity

Convertible Preferred Stock

Immediately prior to the completion of our initial public offeringon July 1, 2019, 93,039,737 shares of convertible preferred stock then outstanding converted into an equivalent number of shares of common stock. As of December 31, 2020, no shares of convertible preferred stock were outstanding.

Preferred Stock

We are authorized to issue 10,000,000 shares of preferred stock, par value $0.0001 per share. As of December 31, 2020, no shares of preferred stock were outstanding.

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Notes to Financial Statements (Continued)

Common Stock

We are authorized to issue 340,000,000 shares of common stock. Our common stock has a par value of $0.0001 per share, 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. As of December 31, 2020, we had 137,646,896 shares of common stock outstanding.

As of December 31, 2020, we have reserved shares of common stock for the following:

Shares to be issued upon exercise of a common stock warrant 56,875

Total shares of common stock reserved for future issuance 35,961,734

Our 2019 Equity Incentive Plan (“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 (“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, 2020, our 2019 Plan and ESPP reserves increased by 6,261,907 shares and 1,252,381 shares, respectively. Effective January 1, 2021, our 2019 Plan reserve increased by 6,882,344 shares.

CommonStockWarrants

In connection with two transactions in 2012 and 2013, we granted warrants to purchase up to 55,032 shares of common stock. These warrants were exercisable at any time for a period of ten years from the date of issuance at a weighted-average exercise price of $0.37, except in the case of a warrant to purchase 20,000 shares of common stock at an exercise price of $0.45 per share that would have expired if unexercised prior to the closing of our initial public offering. On July 1, 2019, we issued 54,792 shares of common stock through both a cash and cashless exercise of the warrants. The impact of these exercises was immaterial to the financial statements.

Separately, in 2014, we issued a warrant to purchase 56,875 shares of Series C convertible preferred stock at an exercise price of $2.64. The warrant is exercisable for a period of seven years from the date of issuance. Immediately prior to and in connection with the completion of our initial public offering on July 1, 2019, this convertible preferred stock warrant, which was previously recorded as a financial liability, was converted to a warrant to purchase the same number of shares of common stock. Upon conversion, the financial liability was reclassified to the additional paid-in capital line item on our balance sheet. The warrant to purchase 56,875 shares of common stock remains outstanding as of December 31, 2020.

13. Equity Incentive Plans

Sequenta 2008 Stock Plan, as amended

In connection with our acquisition of Sequenta in January 2015, we assumed Sequenta’s Equity Incentive Plan (“2008 Plan”), including all outstanding options and shares available for future issuance under the 2008 Plan, which, prior to the completion of our initial public offering, were all exercisable for Series E-1 convertible preferred stock. Upon completion of our initial public offering in July 2019, the outstanding options were exercisable for common stock. No shares are available for future issuance under this plan and no equity awards are outstanding under this plan as of December 31, 2020.

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Notes to Financial Statements (Continued)

Adaptive 2009 Equity Incentive Plan

We adopted an equity incentive plan in 2009 (“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 option 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. 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 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 issuance under the 2009 Plan, it continues to govern outstanding equity awards granted thereunder.

2019 Equity Incentive Plan

The 2019 Plan was approved by our shareholders on June 13, 2019 and, pursuant to the resolutions adopted by our board of directors, became effective immediately prior to the closing of our initial public offering. The 2019 Plan provides for the issuance of awards in the form of options and other share-based awards for employees, directors and consultants. Under the 2019 Plan, the option exercise price per share shall not be less than the fair market value of a share of stock on the grant date of the option, 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, 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 option grants made to non-employee directors, stock options granted under the 2019 Plan generally vest over a four-year period, subject to continuous service through each applicable vesting date. As of December 31, 2020, we have authorized 22,109,217 shares of common stock for issuance under the 2019 Plan.

Changes in shares available for grant during the year ended December 31, 2020 were as follows:

Shares Available for Grant

Options and restricted stock units granted (3,291,701 )

Options forfeited, cancelled or expired 250,541

Stock option activity under the 2008 Plan, 2009 Plan and 2019 Plan during the year ended December 31, 2020 was as follows:

The weighted-average remaining contractual life for options outstanding as of December 31, 2020 was 7.1 years. The weighted-average remaining contractual life for vested and exercisable options outstanding as of December 31, 2020 was 5.9 years.

The weighted-average grant date fair value per share of options granted was $21.11, $6.87 and $4.15 during the year ended December 31, 2020, 2019 and 2018, respectively. The total intrinsic value of options exercised was $190.4 million, $39.1 million and $3.8 million during the year ended December 31, 2020, 2019 and 2018, respectively.

As of December 31, 2020, $0.3 million was included in the prepaid expenses and other current assets line item on our balance sheet for unsettled cash proceeds related to options exercised during the year ended December 31, 2020. As of December 31, 2019, $0.5 million was included in the prepaid expenses and other current assets line item on our balance sheet for unsettled cash proceeds related to options exercised during the year ended December 31, 2019. The $21.7 million proceeds from exercise of stock options on our statements of cash flows for the year ended December 31, 2020 includes this $0.5 million, as the related proceeds settled during the year ended December 31, 2020.

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Notes to Financial Statements (Continued)

Restricted stock unit activity under the 2019 Plan during the year ended December 31, 2020 was as follows:

Nonvested outstanding restricted stock units at December 31, 2019 4,500 $ 41.63

Restricted stock units vested (4,500 ) 41.63

Nonvested outstanding restricted stock units at December 31, 2020 50,000 $ 28.10

The weighted-average grant date fair value per share of restricted stock units granted during the year ended December 31, 2019 was $41.63.

Grant Date Fair Value of Options and Restricted Stock Units Granted

The estimated grant date fair value of options granted during the year ended December 31, 2020, 2019 and 2018 was estimated using the Black-Scholes option-pricing model with the following assumptions:

Year Ended December 31,

Expected dividend yield — — —

The weighted-average volatility used in the grant date fair value calculations of options granted during the year ended December 31, 2020, 2019 and 2018 was 71.4%, 68.1% and 68.1%, respectively.

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

Fair value of common stock—Prior to the closing of our initial public offering, the fair value of our common stock was determined with input from management using valuation methodologies which utilized certain assumptions, including probability weighting of events, volatility, time to liquidation, a risk-free interest rate and an assumption for a discount for lack of marketability (Level 3 inputs). In determining the fair value of our common stock, the methodologies used to estimate the enterprise value were performed using methodologies, approaches and assumptions consistent with the American Institute of Certified Public Accountants Accounting and Valuation Guide, Valuation of Privately-Held-Company Equity Securities Issued as Compensation. For valuations of grants made after the closing of our initial public offering, 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 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 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 options.

Expected volatility—As we do not have sufficient trading history for our common stock, the expected volatility is based on the historical volatility of our publicly traded industry peers utilizing a period of time consistent with our estimate of the 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 grant date fair value of restricted stock units granted after the closing of our initial public offering 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.

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Notes to Financial Statements (Continued)

Share-based compensation expense of $24.8 million, $13.1million and $11.1 million was recognized during the year endedDecember 31, 2020, 2019 and 2018, respectively.

The compensation costs related to stock options and restricted stock units for the years ended December 31, 2020, 2019 and 2018 are included on our statements of operations as follows (in thousands):

Year Ended December 31,

During the year ended December 31, 2018, there was one employee option modification to extend the option exercise period, which resulted in incremental stock compensation of $0.5 million.

As of December 31, 2020, unrecognized share-based compensation expense related to unvested stock options was $74.9 million, which is expected to be recognized over a remaining weighted-average period of 3.0 years. Additionally, as of December 31, 2020, unrecognized share-based compensation expense related to nonvested restricted stock units was $1.1 million, which is expected to be recognized over a remaining weighted-average period of 3.3 years.

14. Microsoft Collaboration Agreement

Summary of Agreement

In December 2017, we entered into a collaboration agreement with Microsoft (“Microsoft Agreement”) to computationally derive a comprehensive TCR antigen map for purposes of developing a universal diagnostic based on a single blood test.

Contemporaneously with the Microsoft Agreement, we entered into a separate agreement to use Microsoft’s Azure cloud services at standard volume pricing with a minimum Azure consumption requirement of $12.0 million over the seven-year term of the Microsoft Agreement, which we expect to meet in the ordinary course of business.

In addition, contemporaneously with entering into the Microsoft Agreement, Microsoft made a preferred stock investment of approximately $45.0 million as a part of our Series F-1 convertible preferred stock issuance.

Summary of Accounting

The terms of the Microsoft Agreement meet the criteria under ASC Topic 808, Collaborative Arrangements (“ASC 808”), as both parties are active participants in the activity and are exposed to significant risks and rewards dependent on the commercial success of the activity. ASC 808 does not provide guidance on how to account for the activities under the collaboration and we determined that Microsoft did not meet the definition of a customer under ASC 606. Accordingly, we looked to other guidance to determine the accounting for the respective elements.

Source: SEC EDGAR (public domain) · 10-K for the period ended 2020-12-31, filed 2021-02-24 · accession 0001564590-21-008124

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