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1. NATURE OF BUSINESS AND BASIS OF PRESENTATION Nature of Business—Homology Medicines, Inc. (the “Company”) is a clinical-stage genetic medicines company dedicated to translating proprietary gene therapy and gene editing technology into novel treatments for patients with rare genetic diseases with significant unmet medical needs by curing the underlying cause of the disease. The Company was founded in March 2015 as a Delaware corporation. Its principal offices are in Bedford, Massachusetts. Since its inception, the Company has devoted substantially all of its resources to recruiting personnel, developing its technology platform and advancing its pipeline of product candidates, developing and implementing manufacturing processes, building out internal manufacturing and research and development space, and maintaining and building its intellectual property portfolio. The Company is subject to a number of risks similar to those of other companies conducting high-risk, early-stage research and development of product candidates. Principal among these risks are dependency on key individuals and intellectual property, competition from other products and companies, and the technical risks associated with the successful research, development and manufacturing of its product candidates. The Company’s success is dependent upon its ability to continue to raise additional capital in order to fund ongoing research and development, conduct clinical trials, obtain regulatory approval of its products, further expand its manufacturing capacity, successfully commercialize its products, generate revenue, meet its obligations, and, ultimately, attain profitable operations. On April 2, 2018, the Company completed its initial public offering (“IPO”) with the sale of 10,350,000 shares of its common stock, including shares issued upon the exercise in full of the underwriters’ over-allotment option, at a public offering price of $16.00 per share, resulting in net proceeds of $150.8 million, after deducting underwriting discounts and commissions and offering expenses. Upon the closing of the IPO, all of the Company’s outstanding shares of convertible preferred stock automatically converted into 24,168,656 shares of common stock at the applicable conversion ratio then in effect.On April 12, 2019, the Company completed a follow-on public offering of its common stock. The Company sold 5,555,556 shares of its common stock at a public offering price of $22.50 per share and received net proceeds of $116.9 million, after deducting underwriting discounts and commissions and offering expenses. In addition, on April 26, 2019 and May 7, 2019, in connection with the exercise in full of the underwriters’ option to purchase additional shares, the Company issued an aggregate of 833,333 shares of its common stock at a public offering price of $22.50 per share and received net proceeds of $17.6 million, after deducting underwriting discounts and commissions.On April 6, 2021, the Company completed a follow-on public offering of its common stock. The Company sold 6,596,306 shares of its common stock at a price of $7.58 per share and received net proceeds of $49.7 million, after deducting offering expenses of $0.3 million. Under the terms of the underwriting agreement, the Company also granted the underwriter an option exercisable for 30 days to purchase up to an additional 989,445 shares of its common stock at a price of $7.58 per share. The underwriters did not exercise this option. The offering closed on April 9, 2021. The shares were sold pursuant to the Company’s effective shelf registration statement on Form S-3, as amended, and a related prospectus supplement filed with the SEC on April 8, 2021.On November 9, 2020, the Company entered into a common stock purchase agreement (the “Stock Purchase Agreement”) with Pfizer Inc. (“Pfizer”), pursuant to which the Company sold to Pfizer 5,000,000 shares of the Company’s common stock through a private placement transaction (the “Private Placement”) at a purchase price of $12.00 per share, for an aggregate purchase price of $60.0 million (see Note 11).On March 12, 2020, the Company filed a Registration Statement on Form S-3 (File No. 333-237131) (as amended, the “Shelf”) with the Securities and Exchange Commission (“SEC”) in relation to the registration of common stock, preferred stock, debt securities, warrants and/or units of any combination thereof for a period up to three years from the date of the filing. The Shelf became effective on March 12, 2020. The Company also simultaneously entered into a sales agreement with Cowen and Company, LLC (“Cowen”), as sales agent, providing for the offering, issuance and sale by the Company of up to an aggregate $150.0 million of its common stock from time to time in “at-the-market” offerings under the Shelf (the “ATM”). In connection with the filing of certain post-effective amendments to the Shelf, the sales agreement prospectus supplement now covers the offering, issuance and sale by the Company of up to an aggregate $148.4 million of its common stock. During the nine months ended September 30, 2021, the Company sold 114,914 shares of common stock under the Sales Agreement, at an average price of approximately $14.00 per share, raising aggregate net proceeds of approximately $1.5 million after deducting an aggregate commission of 3% and issuance costs of $0.1 million. As of September 30, 2021, there remained $148.4 million of common stock available for sale under the ATM.To date, the Company has not generated any revenue from product sales and does not expect to generate any revenue from the sale of product in the foreseeable future. Through September 30, 2021, the Company has financed its operations primarily through public offerings of its common stock, the issuance of convertible preferred stock, and with proceeds from its collaboration and license agreement with Novartis Institutes of BioMedical Research, Inc. (“Novartis”) (see Note 10) and its private placement with Pfizer. During the nine months ended September 30, 2021, the Company incurred a net loss of $62.2 million and as of September 30, 2021, had $390.5 million in accumulated deficit. The Company expects to incur additional operating losses and negative operating cash flows for the foreseeable future.Based on current projections, management still believes that cash and cash equivalents and short-term investments as of September 30, 2021 will enable the Company to continue its operations into the first quarter of 2023. In the absence of a significant source of recurring revenue, the continued viability of the Company beyond that point is dependent on its ability to continue to raise additional capital to finance its operations. There can be no assurance that the Company will be able to obtain sufficient capital to cover its costs on acceptable terms, if at all. <div style="font-size:10.0pt;font-family:Times New Roman;">Basis of Presentation— The accompanying unaudited condensed consolidated financial statements have been prepared by the Company in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and pursuant to the rules and regulations of the SEC for interim financial statements. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. However, the Company believes that the disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements and the notes thereto for the year ended December 31, 2020, included in the Company's Annual Report on Form 10-K on file with the SEC.The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements. In the opinion of management, the accompanying unaudited interim condensed consolidated financial statements contain all adjustments which are necessary for a fair statement of the Company’s financial position as of September 30, 2021, and consolidated results of operations for the three and nine months ended September 30, 2021 and 2020, and cash flows for the nine months ended September 30, 2021 and 2020. Such adjustments are of a normal and recurring nature. The results of operations for the three and nine months ended September 30, 2021 are not necessarily indicative of the results of operations that may be expected for the year ending December 31, 2021. </div>

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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES <div style="font-size:10.0pt;font-family:Times New Roman;">Principles of Consolidation—The Company’s condensed consolidated financial statements include the accounts of the Company and its subsidiary, Homology Medicines Securities Corporation, a wholly owned Massachusetts corporation, for the sole purpose of buying, selling, and holding securities on the Company’s behalf. All intercompany balances and transactions have been eliminated in the condensed consolidated financial statements. </div><div style="font-size:10.0pt;font-family:Times New Roman;">Use of Estimates—The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenue, and expenses, and the disclosure of contingent assets and liabilities as of and during the reporting period. The Company bases its estimates and assumptions on historical experience when available and on various factors that it believes to be reasonable under the circumstances. Significant estimates and assumptions reflected in these condensed consolidated financial statements include, but are not limited to, revenue recognition, accrued research and development expenses and useful lives assigned to property and equipment. The Company assesses estimates on an ongoing basis; however, actual results could materially differ from those estimates.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Comprehensive Income (Loss) —Comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. The Company’s only element of other comprehensive income (loss) is unrealized gains and losses on available-for-sale investments. </div><div style="font-size:10.0pt;font-family:Times New Roman;">Cash and Cash Equivalents and Restricted Cash—Cash and cash equivalents consist of standard checking accounts, money market accounts and certain investments. The Company considers all highly liquid investments with original or remaining maturities at the time of purchase of 90 days or less to be cash equivalents. Restricted cash consists of cash serving as collateral for letters of credit issued for security deposits for the Company’s facility leases in Bedford, Massachusetts.<div style="font-size:10.0pt;font-family:Times New Roman;">The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts shown in the condensed consolidated statements of cash flows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:61.67%;"/> <td style="width:1.505%;"/> <td style="width:1.773%;"/> <td style="width:14.887%;"/> <td style="width:0.928%;"/> <td style="width:1.505%;"/> <td style="width:1.773%;"/> <td style="width:15.031%;"/> <td style="width:0.928%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Cash and cash equivalents</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">95,829</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">178,003</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Restricted cash</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">1,274</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">1,274</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Total cash, cash equivalents and restricted cash</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">97,103</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">179,277</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table></div></div> Short-Term Investments—Short-term investments represent holdings of available-for-sale marketable securities in accordance with the Company’s investment policy and cash management strategy. Short-term investments have maturities of greater than 90 days at the time of purchase and mature within one year from the balance sheet date. Investments in marketable securities are recorded at fair value, with any unrealized gains and losses reported within accumulated other comprehensive income as a separate component of stockholders’ equity until realized or until a determination is made that an other-than-temporary decline in market value has occurred. Any premium or discount arising at purchase is amortized and/or accreted to interest income and/or expense over the life of the underlying security. Such amortization and accretion, together with interest on securities, are included in interest income in the Company’s condensed consolidated statements of operations. The cost of marketable securities sold is determined based on the specific identification method and any realized gains or losses on the sale of investments are reflected as a component of other income. <div style="font-size:10.0pt;font-family:Times New Roman;">Offering Costs—The Company capitalizes incremental legal, professional accounting and other third-party fees that are directly associated with equity financings as other current assets until the transactions are completed. After equity financings are complete, these costs are recorded in stockholders’ equity as a reduction of additional paid-in capital generated as a result of the offering.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Leases—The Company determines if an arrangement is a lease at contract inception. The Company’s contracts are determined to contain a lease when all of the following criteria based on the specific circumstances of the arrangement are met: (1) there is an identified asset for which there are no substantive substitution rights; (2) the Company has the right to obtain substantially all of the economic benefits from the identified asset; and (3) the Company has the right to direct the use of the identified asset.At the commencement date, operating lease liabilities and their corresponding right-of-use assets are recorded based on the present value of future lease payments over the expected lease term. The Company’s lease agreements do not provide an implicit rate. As a result, the Company utilizes an estimated incremental borrowing rate to discount lease payments, which is based on the rate of interest the Company would have to pay to borrow a similar amount on a collateralized basis over a similar term. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or lease incentives received. Operating lease cost is recognized over the expected term on a straight-line basis. The expected lease term includes noncancelable lease periods and, when applicable, periods covered by an option to extend the lease if the Company is reasonably certain to exercise that option, as well as periods covered by an option to terminate the lease if the Company is reasonably certain not to exercise that option. Variable lease cost is recognized as incurred.The Company acts as sublessor related to a sublease of the Company's former headquarters. Fixed sublease payments received are recognized on a straight-line basis over the sublease term and recorded as a reduction to lease cost. Right-of-use assets are periodically evaluated for impairment.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Research and Development Costs—Research and development costs are charged to expense as incurred. Research and development expense consists of expenses incurred in performing research and development activities, including salaries and benefits, materials and supplies, preclinical and clinical expenses, stock-based compensation expense, depreciation of equipment, contract services, and other outside expenses. Costs for certain development activities are recognized based on an evaluation of the progress to completion of specific tasks using information provided to the Company by its vendors on their actual costs incurred. Payments for these activities are based on the terms of the individual arrangements, which may differ from the pattern of costs incurred, and are reflected in the consolidated financial statements as prepaid expense or accrued research and development expense.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Revenue Recognition—Revenue is recognized in accordance with FASB Accounting Standards Codification (“ASC”) Topic 606, Revenue from Contracts with Customers (“ASC 606”). On January 1, 2019, the Company adopted ASC 606 using the full retrospective transition method.Under ASC 606, the Company recognizes revenue when its customer obtains control of promised goods or services, in an amount that reflects the consideration which the entity expects to receive in exchange for those goods or services. To determine the appropriate amount of revenue to be recognized for arrangements determined to be within the scope of ASC 606, the Company performs the following five steps: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation. The Company only applies the five-step model to contracts when it is probable that the entity will collect consideration it is entitled to in exchange for the goods or services it transfers to the customer.The promised goods or services in the Company’s arrangements would likely consist of a license, rights to the Company’s intellectual property or research, development and manufacturing services. Performance obligations are promised goods or services in a contract to transfer a distinct good or service to the customer and are considered distinct when (i) the customer can benefit from the good or service on its own or together with other readily available resources and (ii) the promised good or service is separately identifiable from other promises in the contract. In assessing whether promised goods or services are distinct, the Company considers factors such as the stage of development of the underlying intellectual property, the capabilities of the customer to develop the intellectual property on its own or whether the required expertise is readily available and whether the goods or services are integral or dependent to other goods or services in the contract.The Company estimates the transaction price based on the amount expected to be received for transferring the promised goods or services in the contract. The consideration may include fixed consideration and variable consideration. At the inception of each arrangement that includes variable consideration, the Company evaluates the amount of consideration to which the Company expects to be entitled to. The Company utilizes either the most likely amount method or expected value method to estimate the amount expected to be received based on which method best predicts the amount expected to be received. The amount of variable consideration that is included in the transaction price may be constrained and is included in the transaction price only to the extent that it is probable that a significant reversal in the amount of the cumulative revenue recognized will not occur in a future period.The Company’s contracts may include development and regulatory milestone payments that are assessed under the most likely amount method and constrained until it is probable that a significant revenue reversal would not occur. Milestone payments that are not within the Company’s control, such as regulatory approvals, are not considered probable of being achieved until those approvals are received. At the end of each reporting period, the Company re-evaluates the probability of achievement of such development and regulatory milestones and any related constraint, and if necessary, adjust its estimate of the overall transaction price. Any such adjustments are recorded on a cumulative catch-up basis, which would affect collaboration revenue in the period of adjustment.For arrangements that include sales-based royalties, including milestone payments based on the level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company recognizes revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied). To date, the Company has not recognized any royalty revenue resulting from the Company’s collaboration arrangement.The Company allocates the transaction price based on the estimated standalone selling price of each performance obligation. The Company must develop assumptions that require judgment to determine the stand-alone selling price for each performance obligation identified in the contract. The Company utilizes key assumptions to determine the stand-alone selling price, which may include other comparable transactions, pricing considered in negotiating the transaction and the estimated costs. Variable consideration is allocated specifically to one or more performance obligations in a contract when the terms of the variable consideration relate to the satisfaction of the performance obligation and the resulting amounts allocated are consistent with the amounts the Company would expect to receive for the satisfaction of each performance obligation.The consideration allocated to each performance obligation is recognized as revenue when control is transferred for the related goods or services. For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company evaluates the measure of progress for its over-time arrangements at each reporting period and, if necessary, updates the measure of progress and revenue recognized.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Net Loss per Share—Basic net loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding during the period. Diluted net loss per share is computed using the weighted-average number of common shares outstanding during the period and, if dilutive, the weighted-average number of potential shares of common stock. The weighted-average number of common shares included in the computation of diluted net loss gives effect to all potentially dilutive common equivalent shares, including outstanding stock options, restricted stock units and unvested shares of common stock.Common stock equivalent shares are excluded from the computation of diluted net loss per share if their effect is antidilutive. In periods in which the Company reports a net loss attributable to common stockholders, diluted net loss per share attributable to common stockholders is generally the same as basic net loss per share attributable to common stockholders, since dilutive common shares are not assumed to have been issued if their effect is anti-dilutive.</div><div style="font-size:10.0pt;font-family:Times New Roman;">Recent Accounting Pronouncements—The Jumpstart Our Business Startups Act of 2012 permits an emerging growth company to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies until those standards would otherwise apply to private companies. As an emerging growth company, the Company has elected to take advantage of this extended transition period. In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”) to improve financial reporting by requiring more timely recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. ASU 2016-13 requires the measurement of all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. ASU 2016-13 also requires enhanced disclosures to help investors and other financial statement users better understand significant estimates and judgments used in estimating credit losses, as well as the credit quality and underwriting standards of an organization’s portfolio. ASU 2016-13 is effective for the Company beginning January 1, 2023, with early application permitted. The Company is currently evaluating the impact the adoption of this standard will have on its condensed consolidated financial statements.</div><div style="font-size:10.0pt;font-family:Times New Roman;">In October 2020, the FASB issued ASU 2020-10, Codification Improvements, which updates various codification topics by clarifying or improving disclosure requirements to align with the SEC’s regulations. The Company adopted ASU 2020-10 on January 1, 2021. The adoption of ASU 2020-10 did not have a material impact on the Company’s condensed consolidated financial statements and related disclosures.All other new accounting pronouncements issued, but not yet effective or adopted have been deemed to be not relevant to the Company and, accordingly, are not expected to have a material impact once adopted. </div>

95829000

178003000

1274000

97103000

179277000

Short-Term Investments—Short-term investments represent holdings of available-for-sale marketable securities in accordance with the Company’s investment policy and cash management strategy. Short-term investments have maturities of greater than 90 days at the time of purchase and mature within one year from the balance sheet date. Investments in marketable securities are recorded at fair value, with any unrealized gains and losses reported within accumulated other comprehensive income as a separate component of stockholders’ equity until realized or until a determination is made that an other-than-temporary decline in market value has occurred. Any premium or discount arising at purchase is amortized and/or accreted to interest income and/or expense over the life of the underlying security. Such amortization and accretion, together with interest on securities, are included in interest income in the Company’s condensed consolidated statements of operations. The cost of marketable securities sold is determined based on the specific identification method and any realized gains or losses on the sale of investments are reflected as a component of other income.

3. SHORT-TERM INVESTMENTS The Company may invest its excess cash in fixed income instruments denominated and payable in U.S. dollars, including U.S. treasury securities, commercial paper, corporate debt securities and asset-backed securities in accordance with the Company’s investment policy that primarily seeks to maintain adequate liquidity and preserve capital. <div style="font-size:12.0pt;font-family:Times New Roman;">The following table summarizes the Company’s short-term investments as of September 30, 2021: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:47.03%;"/> <td style="width:1.134%;"/> <td style="width:1.763%;"/> <td style="width:9.425%;"/> <td style="width:0.876%;"/> <td style="width:1.134%;"/> <td style="width:1.763%;"/> <td style="width:9.456%;"/> <td style="width:0.876%;"/> <td style="width:1.134%;"/> <td style="width:1.763%;"/> <td style="width:9.456%;"/> <td style="width:1.062%;"/> <td style="width:1.134%;"/> <td style="width:1.732%;"/> <td style="width:9.383%;"/> <td style="width:0.876%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">As of September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Amortized Cost </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Unrealized Gains</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Unrealized Losses</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:center;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Fair Value</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Commercial paper</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Corporate debt securities</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,754</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(5</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,749</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Total</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">91,727</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">(5</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> <tr> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> </table></div>The Company had no short-term investments as of December 31, 2020. The Company utilizes the specific identification method in computing realized gains and losses. The Company had no realized gains and losses on its available-for-sale securities for the three and nine months ended September 30, 2021 and 2020. The contractual maturity dates of all of the Company’s investments are less than one year.

56973000

34754000

5000

34749000

91727000

5000

91722000

less than one year

4. FAIR VALUE MEASUREMENTS The Company’s financial instruments consist of cash and cash equivalents, short-term investments, restricted cash and accounts payable. The carrying amount of cash, restricted cash and accounts payable are each considered a reasonable estimate of fair value due to the short-term maturity. <div style="font-size:10.0pt;font-family:Times New Roman;">Assets measured at fair value on a recurring basis were as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:37.822%;"/> <td style="width:1.227%;"/> <td style="width:1.712%;"/> <td style="width:11.095%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.722%;"/> <td style="width:13.126%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.722%;"/> <td style="width:11.157%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.763%;"/> <td style="width:11.549%;"/> <td style="width:0.856%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">Description </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Quoted Prices (Unadjusted) in Active Markets for Identical Assets (Level 1)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Other Observable Inputs (Level 2)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Unobservable Inputs (Level 3)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Cash equivalents:</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Money market mutual funds</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:20.0pt;word-break:break-word;vertical-align:top;">Total cash equivalents</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Short-term investments:</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Commercial paper</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Corporate debt securities</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,749</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,749</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:20.0pt;word-break:break-word;vertical-align:top;">Total short-term investments</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:30.0pt;word-break:break-word;vertical-align:top;">Total financial assets</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">187,301</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> <tr> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">Description </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">December 31, 2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Quoted Prices (Unadjusted) in Active Markets for Identical Assets (Level 1)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Other Observable Inputs (Level 2)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Unobservable Inputs (Level 3)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Cash equivalents:</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Money market mutual funds</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:30.0pt;word-break:break-word;vertical-align:top;">Total financial assets</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table></div> Short-term securities are valued using models or other valuation methodologies that use Level 2 inputs. These models are primarily industry-standard models that consider various assumptions, including time value, yield curve, volatility factors, default rates, current market and contractual prices for the underlying financial instruments, as well as other relevant economic measures. Substantially all of these assumptions are observable in the marketplace, can be derived from observable data or are supported by observable levels at which transactions are executed in the marketplace. There were no transfers between fair value measure levels during the three and nine months ended September 30, 2021 and 2020.

Assets measured at fair value on a recurring basis were as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:37.822%;"/> <td style="width:1.227%;"/> <td style="width:1.712%;"/> <td style="width:11.095%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.722%;"/> <td style="width:13.126%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.722%;"/> <td style="width:11.157%;"/> <td style="width:0.856%;"/> <td style="width:1.227%;"/> <td style="width:1.763%;"/> <td style="width:11.549%;"/> <td style="width:0.856%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">Description </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Quoted Prices (Unadjusted) in Active Markets for Identical Assets (Level 1)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Other Observable Inputs (Level 2)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Unobservable Inputs (Level 3)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Cash equivalents:</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Money market mutual funds</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:20.0pt;word-break:break-word;vertical-align:top;">Total cash equivalents</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Short-term investments:</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Commercial paper</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">56,973</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Corporate debt securities</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,749</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">34,749</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:20.0pt;word-break:break-word;vertical-align:top;">Total short-term investments</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:30.0pt;word-break:break-word;vertical-align:top;">Total financial assets</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">187,301</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">95,579</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">91,722</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> <tr> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">Description </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">December 31, 2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Quoted Prices (Unadjusted) in Active Markets for Identical Assets (Level 1)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Other Observable Inputs (Level 2)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Significant Unobservable Inputs (Level 3)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Cash equivalents:</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Money market mutual funds</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:30.0pt;word-break:break-word;vertical-align:top;">Total financial assets</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">217,181</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table>

95579000

56973000

34749000

91722000

187301000

95579000

91722000

217181000

0 0 0 0

5. PROPERTY AND EQUIPMENT, NET<div style="font-size:10.0pt;font-family:Times New Roman;">Property and equipment, net consists of the following: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:61.536%;"/> <td style="width:1.495%;"/> <td style="width:1.763%;"/> <td style="width:14.928%;"/> <td style="width:1.082%;"/> <td style="width:1.495%;"/> <td style="width:1.763%;"/> <td style="width:14.856%;"/> <td style="width:1.082%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">As of</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">December 31, 2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Laboratory equipment</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">14,017</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">12,703</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Manufacturing equipment</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">7,959</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">7,754</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Computers and purchased software</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,597</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,596</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Furniture and fixtures</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">1,625</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">1,363</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Leasehold improvements</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">30,074</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">29,961</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Assets not yet in service</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">20</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Property and equipment, at cost</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">55,292</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">53,377</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Less: accumulated depreciation and amortization</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(22,595</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(16,375</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Property and equipment, net</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">32,697</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">37,002</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table> </div> Depreciation expense for the three and nine months ended September 30, 2021 was approximately $2.1 million and $6.3 million, respectively, compared to $2.0 million and $5.9 million, respectively for the three and nine months ended September 30, 2020. The Company disposed of less than $0.1 million of property and equipment during the three and nine months ended September 30, 2021. There were no disposals of property and equipment during the three and nine months ended September 30, 2020.

14017000

12703000

7959000

7754000

1597000

1596000

1625000

1363000

30074000

29961000

20000

55292000

53377000

22595000

16375000

32697000

37002000

2100000

6300000

2000000.0

5900000

100000

6684000

6902000

2534000 2393000

572000

291000

226000

217000

10016000 9803000

7. COMMITMENTS AND CONTINGENCIES Operating Leases—In August 2016, the Company entered into a noncancelable operating lease beginning in November 2016 for office, laboratory and manufacturing space in Bedford, Massachusetts, that expires in December 2021, with an option for an additional three-year term. In 2018, the Company entered into a sublease agreement for the entire leased premises, which agreement was amended in September 2021 to extend the term of the sublease by approximately two weeks to be coterminous with the original lease. The rent commencement date of the sublease was December 2018, and, as amended, the sublease will terminate on the scheduled termination date of the original lease. Under the terms of the sublease, the subtenant is obligated to pay the Company aggregate base rent of approximately $2.7 million over the term of the sublease, based on the same level of rent the Company is obligated to pay the landlord, in addition to a passthrough of operating expenses and real estate taxes charged by the landlord.In December 2017, the Company entered into a noncancelable operating lease for approximately 67,000 square feet of research and development, manufacturing and general office space in Bedford, Massachusetts. The lease expires in February 2027 with an option for an additional five-year term. Rent became due under the lease in two phases; rent on the first 46,000 square feet started in September 2018 and rent on the remaining 21,000 square feet started in March 2019. The initial annual base rent was $39.50 per square foot and increases by three percent annually. The Company is obligated to pay, on a pro-rata basis, real estate taxes and operating costs related to the premises. The lease agreement entered into in December 2017 allowed for a tenant improvement allowance not to exceed $10.9 million, which the Company received in full, to be applied to the total cost of tenant improvements to the leased premises. The unamortized balance of the tenant improvement allowance was included in deferred rent incentives and has been recorded as a reduction to the operating right-of-use asset upon adoption of the new leasing standards. The lease agreement entered into in December 2017 was recently amended in November 2021 (see Note 12).The Company maintains letters of credit, secured by restricted cash, for security deposits totaling $1.3 million as of September 30, 2021 and December 31, 2020, respectively, in conjunction with its current leases. <div style="font-size:12.0pt;font-family:Times New Roman;">The following table summarizes operating lease costs, variable lease costs and sublease income: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:61.66%;"/> <td style="width:1.515%;"/> <td style="width:1.773%;"/> <td style="width:14.784%;"/> <td style="width:1.093%;"/> <td style="width:1.515%;"/> <td style="width:1.773%;"/> <td style="width:14.794%;"/> <td style="width:1.093%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Operating lease costs</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,869</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,869</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Variable lease costs</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">1,636</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">1,689</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Sublease income</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(705</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(685</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Net lease cost</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">2,800</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">2,873</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table> </div><div style="font-size:12.0pt;font-family:Times New Roman;">The maturities of our operating lease liabilities and minimum lease payments as of September 30, 2021 were as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:79.043%;"/> <td style="width:1.917%;"/> <td style="width:1.783%;"/> <td style="width:16.163%;"/> <td style="width:1.093%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);">For the Years Ending December 31,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Amount (in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">914</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">2022</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">2,987</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">2023</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">3,077</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">2024</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">3,169</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Thereafter</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">7,197</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Total undiscounted lease payments</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">17,344</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Less: imputed interest</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(3,803</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Present value of operating lease liabilities</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">13,541</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table></div> <div style="font-size:12.0pt;font-family:Times New Roman;">The following table summarizes the lease term and discount rate as of September 30, 2021: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:80.961%;"/> <td style="width:1.804%;"/> <td style="width:0.897%;"/> <td style="width:13.658%;"/> <td style="width:2.68%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">As of September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Weighted-average remaining lease term (years)</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Operating leases</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">5.3</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Weighted-average discount rate</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Operating leases</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">10.0</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">%</td> </tr> </table></div> <div style="font-size:12.0pt;font-family:Times New Roman;">The following table summarizes cash paid for amounts included in the measurement of the Company’s operating lease liabilities. <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:65.636%;"/> <td style="width:1.691%;"/> <td style="width:1.773%;"/> <td style="width:13.043%;"/> <td style="width:0.845%;"/> <td style="width:1.969%;"/> <td style="width:1.773%;"/> <td style="width:12.424%;"/> <td style="width:0.845%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">Cash paid for amounts included in the measurement of lease liabilities</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,901</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,838</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> </table></div>

2016-11 2021-12

P3Y

In 2018, the Company entered into a sublease agreement for the entire leased premises, which agreement was amended in September 2021 to extend the term of the sublease by approximately two weeks to be coterminous with the original lease

2700000

67000

2027-02

P5Y

46000

2018-09

21000

2019-03 39.50 0.03 10900000

1300000

1869000

1636000

1689000

705000

685000

2800000

2873000

914000

2987000

3077000

3169000

7197000

17344000

3803000

13541000

The following table summarizes the lease term and discount rate as of September 30, 2021: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:80.961%;"/> <td style="width:1.804%;"/> <td style="width:0.897%;"/> <td style="width:13.658%;"/> <td style="width:2.68%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">As of September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Weighted-average remaining lease term (years)</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Operating leases</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">5.3</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Weighted-average discount rate</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Operating leases</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">10.0</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">%</td> </tr> </table>

P5Y3M18D

0.100

The following table summarizes cash paid for amounts included in the measurement of the Company’s operating lease liabilities. <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:65.636%;"/> <td style="width:1.691%;"/> <td style="width:1.773%;"/> <td style="width:13.043%;"/> <td style="width:0.845%;"/> <td style="width:1.969%;"/> <td style="width:1.773%;"/> <td style="width:12.424%;"/> <td style="width:0.845%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">Cash paid for amounts included in the measurement of lease liabilities</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,901</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,838</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> </table>

2901000

2838000

8. STOCK INCENTIVE PLANS 2015 Stock Incentive PlanIn December 2015, the Company’s Board of Directors adopted the 2015 Stock Incentive Plan (the “2015 Plan”), which provided for the grant of qualified incentive and nonqualified stock options or restricted stock awards to the Company’s employees, officers, directors, advisors, and outside consultants. Stock options generally vest over a four-year period and expire ten years from the date of grant. Certain options provide for accelerated vesting if there is a change in control, as defined in the 2015 Plan. At September 30, 2021, there were no additional shares available for future grant under the 2015 Plan. 2018 Incentive Award PlanIn March 2018, the Company’s Board of Directors adopted and the Company’s stockholders approved the Homology Medicines, Inc. 2018 Incentive Award Plan (the “2018 Plan” and, together with the 2015 Plan, the “Plans”), which became effective on the day prior to the first public trading date of the Company’s common stock. Upon effectiveness of the 2018 Plan, the Company ceased granting new awards under the 2015 Plan. The 2018 Plan provides for the grant of incentive stock options, nonqualified stock options, restricted stock awards, restricted stock units, stock appreciation rights and other stock or cash-based awards to employees and consultants of the Company and certain affiliates and directors of the Company. The number of shares of common stock initially available for issuance under the 2018 Plan was 3,186,205 shares of common stock plus the number of shares subject to awards outstanding under the 2015 Plan that expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company on or after the effective date of the 2018 Plan. In addition, the number of shares of common stock available for issuance under the 2018 Plan is subject to an annual increase on the first day of each calendar year beginning on January 1, 2019, and ending on and including January 1, 2028, equal to the lesser of (i) 4% of the Company’s outstanding shares of common stock on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Company’s Board of Directors, provided that not more than 20,887,347 shares of common stock may be issued under the 2018 Plan upon the exercise of incentive stock options. Therefore, on January 1, 2021, an additional 2,010,623 shares were added to the 2018 Plan, representing 4% of total common shares outstanding at December 31, 2020. As of September 30, 2021, there were 2,358,420 shares available for future grant under the 2018 Plan. 2018 Employee Stock Purchase PlanIn March 2018, the Company’s Board of Directors adopted and the Company’s stockholders approved the Homology Medicines, Inc. 2018 Employee Stock Purchase Plan (the “2018 ESPP”). The 2018 ESPP allows employees to buy Company stock through after-tax payroll deductions at a discount from market value. The 2018 ESPP is intended to qualify as an “employee stock purchase plan” under Section 423 of the Internal Revenue Code. The number of shares of common stock initially available for issuance under the 2018 ESPP was 353,980 shares of common stock plus an annual increase on the first day of each calendar year, beginning on January 1, 2019, and ending on and including January 1, 2028 equal to the lesser of (i) 1% of the Company’s outstanding shares of common stock on the final day of the immediately preceding calendar year and (ii) such smaller number of shares of common stock as determined by the Company’s Board of Directors, provided that not more than 4,778,738 shares of common stock may be issued under the 2018 ESPP. Therefore, on January 1, 2021, an additional 502,655 shares were added to the 2018 ESPP, representing 1% of total common shares outstanding at December 31, 2020. As of September 30, 2021, there were 1,431,382 shares available for future issuance under the 2018 ESPP. Under the 2018 ESPP, employees may purchase common stock through after-tax payroll deductions at a price equal to 85% of the lower of the fair market value on the first trading day of an offering period or the last trading day of an offering period. The 2018 ESPP generally provides for offering periods of six months in duration that end on the final trading day of each February and August. In accordance with the Internal Revenue Code, no employee will be permitted to accrue the right to purchase stock under the 2018 ESPP at a rate in excess of $25,000 worth of shares during any calendar year during which such a purchase right is outstanding (based on the fair market value per share of the Company’s common stock as of the first day of the offering period).During the nine months ended September 30, 2021, <span style="font-size:10.0pt;font-family:Times New Roman;background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:Times New Roman;background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);white-space:pre-wrap;font-weight:normal;font-size:10.0pt;font-family:Times New Roman;">110,923 shares were issued under the 2018 ESPP for aggregate proceeds to the Company of $0.8 million. During the nine months ended September 30, 2020, 83,848 shares were issued under the 2018 ESPP for aggregate proceeds to the Company of $0.9 million. Pursuant to the 2018 ESPP, the Company recorded stock-based compensation of $0.1 million during the three and nine months ended September 30, 2021, and $0.1 million during the three and nine months ended September 30, 2020.Stock OptionsThe fair values of stock options granted during the periods presented are measured on the date of grant using the Black-Scholes option pricing model, with the assumptions noted in the table below. Expected volatility for the Company’s common stock was determined based on an average of the historical volatility of a peer group of publicly traded companies that are similar to the Company. The expected term of options granted to employees was calculated using the simplified method, which represents the average of the contractual term of the option and the weighted-average vesting period of the option. The Company uses the simplified method because it does not have sufficient historical option exercise data to provide a reasonable basis upon which to estimate expected term. The contractual life of the options was used for the expected term of options granted to non-employees. The assumed dividend yield is based upon the Company’s expectation of not paying dividends in the foreseeable future. The risk-free rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods commensurate with the expected term of the award. The Company recognizes forfeitures as they occur.<div style="font-size:12.0pt;font-family:Times New Roman;">The assumptions used in the Black-Scholes option pricing model are as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:36.893%;"/> <td style="width:1.276%;"/> <td style="width:14.496%;"/> <td style="width:1.276%;"/> <td style="width:14.496%;"/> <td style="width:0.01%;"/> <td style="width:1.265%;"/> <td style="width:0.01%;"/> <td style="width:14.486%;"/> <td style="width:1.276%;"/> <td style="width:14.516%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="4" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Three months ended September 30,</td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="3" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> </tr> <tr style="height:9.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Expected volatility</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">66.3% - 71.7%</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">64.6% - 65.2%</td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">64.6% - 71.7%</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">63.2% - 65.4%</td> </tr> <tr style="height:9.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Weighted-average risk-free interest rate</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">0.81% - 1.03%</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">0.31% - 0.40%</td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">0.50% - 1.20%</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">0.31% - 1.73%</td> </tr> <tr style="height:9.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Expected dividend yield</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;"> — % </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">— %</td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;"> — % </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">— %</td> </tr> <tr style="height:9.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Expected term (in years)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">6.25</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">6.0 - 6.25</td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">5.5 - 6.25</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">5.5 - 6.25</td> </tr> <tr style="height:9.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Underlying common stock fair value</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">$6.36-$7.75</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">$10.10-$16.48</td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">$6.36-$13.91</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:left;">$10.10-$21.75</td> </tr> </table> </div><div style="font-size:12.0pt;font-family:Times New Roman;">The following table summarizes the Company’s stock option activity for the nine months ended September 30, 2021: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:31.746%;"/> <td style="width:1.268%;"/> <td style="width:0.949%;"/> <td style="width:13.455%;"/> <td style="width:1.134%;"/> <td style="width:1.268%;"/> <td style="width:1.866%;"/> <td style="width:13.373%;"/> <td style="width:0.949%;"/> <td style="width:1.268%;"/> <td style="width:0.969%;"/> <td style="width:13.187%;"/> <td style="width:1.083%;"/> <td style="width:1.268%;"/> <td style="width:1.866%;"/> <td style="width:13.403%;"/> <td style="width:0.949%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Number of Options</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Weighted- Average Exercise Price per Share</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Weighted- Average Remaining Contractual Term (in Years)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Aggregate Intrinsic Value</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at January 1, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">5,840,824</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">15.18</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">7.8</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">12,278</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Granted</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">2,053,375</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">12.39</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Exercised</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">(59,465</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">)</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2.29</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Cancelled/Forfeited</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(303,825</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">17.59</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at September 30, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">7,530,909</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">14.43</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">7.7</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">6,607</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Vested and expected to vest at September 30, 2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">7,530,909</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">14.43</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">7.7</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">6,607</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Exercisable at September 30, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">4,113,985</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">13.46</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">6.8</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">6,092</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> </table></div> The total intrinsic value of options exercised during the nine months ended September 30, 2021 and 2020 was $0.6 million and $0.5 million, respectively. The weighted-average grant date fair value per share of options granted during the nine months ended September 30, 2021 and 2020 was $7.50 and $10.73, respectively. Stock options granted pursuant to the 2015 Plan permit option holders to elect to exercise unvested options in exchange for unvested common stock. Options granted under the 2015 Plan that are exercised prior to vesting will continue to vest according to the respective option agreement, and such unvested shares are subject to repurchase by the Company at the optionee’s original exercise price in the event the optionee’s service with the Company voluntarily or involuntarily terminates. <div style="font-size:10.0pt;font-family:Times New Roman;">A summary of the Company’s unvested common stock from early exercises that is subject to repurchase by the Company is as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:79.336%;"/> <td style="width:2.052%;"/> <td style="width:0.856%;"/> <td style="width:16.663%;"/> <td style="width:1.093%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Shares</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Unvested shares - January 1, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">3,091</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Vested </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(2,795</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Unvested shares - September 30, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">296</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table></div> As of September 30, 2021 and December 31, 2020, 296 shares and 3,091 shares, respectively, remained subject to a repurchase right by the Company, with a related liability included in accrued expenses and other liabilities in the condensed consolidated balance sheets of less than $0.1 million as of September 30, 2021 and December 31, 2020. Restricted Stock UnitsThe fair values of restricted stock units (“RSUs”) are based on the fair market value of the Company’s common stock on the date of grant. Each RSU represents a contingent right to receive one share of the Company’s common stock upon vesting. In general, RSUs vest annually in three equal installments on January 1st of each year. The following table summarizes the Company’s RSU activity for the nine months ended September 30, 2021:<div style="font-size:12.0pt;font-family:Times New Roman;"> <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:47.985%;"/> <td style="width:1.979%;"/> <td style="width:0.99%;"/> <td style="width:21.699%;"/> <td style="width:1.093%;"/> <td style="width:1.979%;"/> <td style="width:1.773%;"/> <td style="width:21.544%;"/> <td style="width:0.959%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Number of Restricted Stock Units</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Weighted- Average Grant Date Fair Value</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at January 1, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Granted</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">313,700</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">12.98</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Vested</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Forfeited</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(13,500</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">13.63</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at September 30, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">300,200</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">12.95</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> </table> </div>Stock-based Compensation ExpenseThe Company recognizes compensation expense for awards to employees based on the grant date fair value of stock-based awards on a straight-line basis over the period during which an award holder provides service in exchange for the award, which is generally the vesting period. The Company recorded stock-based compensation expense related to stock options, shares purchased under the 2018 ESPP and restricted stock units as follows: <div style="font-size:12.0pt;font-family:Times New Roman;"> <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:30.718%;"/> <td style="width:1.165%;"/> <td style="width:1.742%;"/> <td style="width:12.854%;"/> <td style="width:0.897%;"/> <td style="width:1.165%;"/> <td style="width:1.742%;"/> <td style="width:12.885%;"/> <td style="width:0.897%;"/> <td style="width:1.258%;"/> <td style="width:1.742%;"/> <td style="width:14.153%;"/> <td style="width:0.897%;"/> <td style="width:1.258%;"/> <td style="width:1.742%;"/> <td style="width:13.988%;"/> <td style="width:0.897%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Three months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Research and development</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,145</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,572</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">6,304</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">4,640</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">General and administrative</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">2,081</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">1,774</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">6,278</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">5,042</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">4,226</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">3,346</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">12,582</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">9,682</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table></div>As of September 30, 2021, there was $33.8 million of unrecognized compensation expense related to unvested employee and non-employee share-based compensation arrangements granted under the Plans. The unrecognized compensation expense is estimated to be recognized over a period of 2.5 years at September 30, 2021.

P4Y

P10Y

3186205

0.04 20887347

2010623

0.04

2358420

353980

0.01 4778738

502655

0.01

1431382

0.85 P6M

110923

800000

83848

900000

100000

0.663

0.717

0.646

0.652

0.646

0.717

0.632

0.654

0.0081

0.0103

0.0031

0.0040

0.0050

0.0120

0.0031

0.0173

P6Y3M

P6Y

P6Y3M

P5Y6M

P6Y3M

P5Y6M

P6Y3M

6.36 7.75 10.10 16.48 6.36 13.91 10.10 21.75

5840824

15.18

P7Y9M18D

12278000

2053375

12.39

59465

2.29

303825

17.59

7530909

14.43

P7Y8M12D

6607000

7530909

14.43

P7Y8M12D

6607000

4113985

13.46

P6Y9M18D

6092000

600000

500000

7.50

10.73

The following table summarizes the Company’s RSU activity for the nine months ended September 30, 2021: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:47.985%;"/> <td style="width:1.979%;"/> <td style="width:0.99%;"/> <td style="width:21.699%;"/> <td style="width:1.093%;"/> <td style="width:1.979%;"/> <td style="width:1.773%;"/> <td style="width:21.544%;"/> <td style="width:0.959%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Number of Restricted Stock Units</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Weighted- Average Grant Date Fair Value</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at January 1, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Granted</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">313,700</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">12.98</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Vested</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);text-indent:10.0pt;word-break:break-word;vertical-align:top;">Forfeited</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">(13,500</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);">)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">13.63</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Outstanding at September 30, 2021</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">300,200</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">12.95</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> </table>

313700

12.98

13500

13.63

300200

12.95

The Company recorded stock-based compensation expense related to stock options, shares purchased under the 2018 ESPP and restricted stock units as follows: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:30.718%;"/> <td style="width:1.165%;"/> <td style="width:1.742%;"/> <td style="width:12.854%;"/> <td style="width:0.897%;"/> <td style="width:1.165%;"/> <td style="width:1.742%;"/> <td style="width:12.885%;"/> <td style="width:0.897%;"/> <td style="width:1.258%;"/> <td style="width:1.742%;"/> <td style="width:14.153%;"/> <td style="width:0.897%;"/> <td style="width:1.258%;"/> <td style="width:1.742%;"/> <td style="width:13.988%;"/> <td style="width:0.897%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Three months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">Nine months ended September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td colspan="14" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;">(in thousands)</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Research and development</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">2,145</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">1,572</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">6,304</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">4,640</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">General and administrative</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">2,081</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">1,774</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">6,278</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">5,042</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">4,226</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">3,346</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">12,582</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);">$</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">9,682</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table>

2145000

1572000

6304000

4640000

2081000

1774000

6278000

5042000

4226000

3346000

12582000

9682000

33800000

P2Y6M

The Company excluded the following potential common shares, presented based on amounts outstanding at September 30, 2021 and 2020, from the computation of diluted net loss per share attributable to common stockholders because including them would have had an anti-dilutive effect: <table style="margin-left:auto;border-spacing:0;table-layout:fixed;width:90.0%;border-collapse:separate;margin-right:auto;"> <tr style="visibility:collapse;"> <td style="width:65.56%;"/> <td style="width:1.68%;"/> <td style="width:0.99%;"/> <td style="width:13.555%;"/> <td style="width:0.99%;"/> <td style="width:1.68%;"/> <td style="width:0.99%;"/> <td style="width:13.566%;"/> <td style="width:0.99%;"/> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="6" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">As of September 30,</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:8.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2021</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> <td colspan="2" style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:left;">2020</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);text-align:left;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Unvested common stock from early exercise of options</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">296</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;text-align:center;">4,102</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Stock options to purchase common stock</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">7,530,909</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;text-align:center;">5,812,832</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:top;">Restricted Stock Units</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">300,200</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);"> </td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(0,0,0,1);text-align:center;">—</td> <td style="background-color:rgba(207,240,252,1);word-break:break-word;vertical-align:bottom;border-bottom:0.500pt solid rgba(255,255,255,0.01);"> </td> </tr> <tr style="height:10.0pt;"> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:top;">Total </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">7,831,405</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);"> </td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(0,0,0,1);text-align:center;">5,816,934</td> <td style="background-color:rgba(0,0,0,0);word-break:break-word;vertical-align:bottom;border-bottom:2.250pt double rgba(255,255,255,0.01);"> </td> </tr> </table>

296

4102

7530909

5812832

300200

7831405

5816934

26900000

900000

30800000

800000

30200000

600000

1700000

200000

600000

30200000

100000

400000

11. PFIZER STOCK PURCHASE AGREEMENTOn November 9, 2020, the Company entered into a common stock purchase agreement (the “Stock Purchase Agreement”) with Pfizer Inc. (“Pfizer”), pursuant to which the Company sold to Pfizer 5,000,000 shares of the Company’s common stock through a private placement transaction (the “Private Placement”) at a purchase price of $12.00 per share, for an aggregate purchase price of $60.0 million. The shares of common stock sold to Pfizer are subject to a one-year lock-up from closing, during which time Pfizer is prohibited from selling or otherwise disposing of such shares.Under the Stock Purchase Agreement, Pfizer was granted an exclusive right of first refusal (the “ROFR”) for a 30-month period (the “ROFR Period”) beginning on the date of the closing of the Private Placement (collectively, the “ROFR Provision”), to negotiate a potential collaboration on the development and commercialization of HMI-102 and HMI-103. Pfizer may exercise its right of first refusal under the ROFR Provision one time for each of HMI-102 and HMI-103 during the ROFR period. In addition to the ROFR, the Stock Purchase Agreement provides for an information sharing committee (the “Information Committee”), comprised of representatives of each company, which will serve as a forum for sharing information regarding the development of HMI-102 and HMI-103 during the ROFR Period. The Company recorded the issuance of common stock at its estimated fair value of $52.0 million, which reflects a discount for the lack of marketability of the shares. The remaining $8.0 million of aggregate purchase price was allocated to the other elements of the Stock Purchase Agreement, which represent a contract with a customer. The Company concluded that the Information Committee represents the only performance obligation under the contract. The ROFR does not provide Pfizer with a material right and is therefore not a performance obligation. As such, the Company allocated the $8.0 million to the Information Committee obligation.The Company recognizes revenue over time as the measure of progress, which it believes best depicts the transfer of control to Pfizer. The Information Committee will meet regularly over the ROFR Period to share information which results in recognition of the transaction price over the 30-month ROFR Period.During the three and nine months ended September 30, 2021, the Company recognized collaboration revenue of $0.8 million and $2.4 million, respectively, and as of September 30, 2021, there was approximately $5.2 million of deferred revenue related to the Company’s obligation to Pfizer.

5000000

12.00

60000000.0

The shares of common stock sold to Pfizer are subject to a one-year lock-up from closing, during which time Pfizer is prohibited from selling or otherwise disposing of such shares. 52000000.0 8000000.0

8000000.0

800000

2400000

5200000

23011

2027-02 2030-06

P10Y5M

4200000 1400000 0.03 5300000