Cover
Cover - shares | 3 Months Ended | |
Mar. 31, 2023 | May 05, 2023 | |
Cover [Abstract] | ||
Document Type | 10-Q | |
Document Quarterly Report | true | |
Document Period End Date | Mar. 31, 2023 | |
Document Transition Report | false | |
Entity File Number | 001-37449 | |
Entity Registrant Name | ALPINE IMMUNE SCIENCES, INC. | |
Entity Incorporation, State or Country Code | DE | |
Entity Tax Identification Number | 20-8969493 | |
Entity Address, Address Line One | 188 East Blaine Street, Suite 200 | |
Entity Address, City or Town | Seattle | |
Entity Address, State or Province | WA | |
Entity Address, Postal Zip Code | 98102 | |
City Area Code | 206 | |
Local Phone Number | 788-4545 | |
Title of 12(b) Security | Common Stock, par value $0.001 per share | |
Trading Symbol | ALPN | |
Security Exchange Name | NASDAQ | |
Entity Current Reporting Status | Yes | |
Entity Interactive Data Current | Yes | |
Entity Filer Category | Non-accelerated Filer | |
Entity Small Business | true | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Entity Common Stock, Shares Outstanding | 47,965,835 | |
Entity Central Index Key | 0001626199 | |
Current Fiscal Year End Date | --12-31 | |
Document Fiscal Year Focus | 2023 | |
Document Fiscal Period Focus | Q1 | |
Amendment Flag | false |
CONDENSED CONSOLIDATED BALANCE
CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Current assets: | ||
Cash and cash equivalents | $ 14,465 | $ 13,376 |
Short-term investments | 180,460 | 224,265 |
Accounts receivable | 668 | 392 |
Prepaid expenses and other current assets | 3,191 | 2,960 |
Total current assets | 198,784 | 240,993 |
Restricted cash, noncurrent | 254 | 254 |
Property and equipment, net | 1,689 | 1,584 |
Operating lease, right-of-use asset | 8,051 | 8,219 |
Long-term investments | 53,170 | 35,481 |
Deferred tax asset | 152 | 155 |
Total assets | 262,100 | 286,686 |
Current liabilities: | ||
Accounts payable | 1,662 | 4,286 |
Accrued liabilities | 12,030 | 14,003 |
Deferred revenue, current | 40,401 | 35,571 |
Operating lease liability, current | 790 | 756 |
Current portion of long-term debt | 2,206 | 3,380 |
Total current liabilities | 57,089 | 57,996 |
Deferred revenue, noncurrent | 25,636 | 39,185 |
Operating lease liability, noncurrent | 9,832 | 10,085 |
Total liabilities | 92,557 | 107,266 |
Commitments and contingencies | ||
Stockholders’ equity: | ||
Preferred stock, $0.001 par value per share; 10,000,000 shares authorized at March 31, 2023 and December 31, 2022; zero shares issued and outstanding at March 31, 2023 and December 31, 2022 | 0 | 0 |
Common stock, $0.001 par value per share; 200,000,000 shares authorized at March 31, 2023 and December 31, 2022; 49,008,474 shares issued and 47,758,007 shares outstanding at March 31, 2023; 47,234,900 shares issued and 45,984,433 shares outstanding at December 31, 2022 | 48 | 46 |
Treasury stock, at cost; 1,250,467 shares at March 31, 2023 and December 31, 2022 | 0 | 0 |
Additional paid-in capital | 407,129 | 404,456 |
Accumulated other comprehensive loss | (407) | (1,121) |
Accumulated deficit | (237,227) | (223,961) |
Total stockholders’ equity | 169,543 | 179,420 |
Total liabilities and stockholders’ equity | $ 262,100 | $ 286,686 |
CONDENSED CONSOLIDATED BALANC_2
CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares | Mar. 31, 2023 | Dec. 31, 2022 |
Statement of Financial Position [Abstract] | ||
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
Preferred stock, shares authorized (in shares) | 10,000,000 | 10,000,000 |
Preferred stock, shares outstanding (in shares) | 0 | 0 |
Preferred stock, shares issued (in shares) | 0 | 0 |
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001 |
Common stock, shares authorized (in shares) | 200,000,000 | 200,000,000 |
Common stock, shares issued (in shares) | 49,008,474 | 47,234,900 |
Common stock, shares outstanding (in shares) | 47,758,007 | 45,984,433 |
Treasury stock, shares (in shares) | 1,250,467 | 1,250,467 |
CONDENSED CONSOLIDATED STATEMEN
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | |
Income Statement [Abstract] | ||
Revenue from Contract with Customer, Product and Service [Extensible Enumeration] | Collaboration [Member] | Collaboration [Member] |
Collaboration revenue | $ 9,387 | $ 13,629 |
Operating expenses: | ||
Research and development | 19,581 | 16,311 |
General and administrative | 5,398 | 4,775 |
Total operating expenses | 24,979 | 21,086 |
Loss from operations | (15,592) | (7,457) |
Other income (expense): | ||
Interest income | 2,418 | 145 |
Interest expense | (70) | (154) |
Other, net | (22) | (57) |
Loss before taxes | (13,266) | (7,523) |
Income tax benefit (expense) | 0 | (4) |
Net loss | (13,266) | (7,527) |
Comprehensive income (loss): | ||
Unrealized gain (loss) on investments | 745 | (774) |
Unrealized loss on foreign currency translation | (31) | (14) |
Comprehensive loss | $ (12,552) | $ (8,315) |
Weighted-average shares used to compute basic net loss per share (in shares) | 47,568,149 | 30,267,472 |
Weighted-average shares used to compute diluted net loss per share (in shares) | 47,568,149 | 30,267,472 |
Basic net loss per share (in dollars per share) | $ (0.28) | $ (0.25) |
Diluted net loss per share (in dollars per share) | $ (0.28) | $ (0.25) |
CONDENSED CONSOLIDATED STATEM_2
CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY (unaudited) - USD ($) $ in Thousands | Total | Common Stock | Treasury | Additional Paid-in Capital | Accumulated Other Comprehensive Income (Loss) | Accumulated Deficit |
Beginning balance, common stock (in shares) at Dec. 31, 2021 | 30,194,279 | |||||
Beginning balance, treasury stock (in shares) at Mar. 31, 2022 | 1,250,467 | |||||
Beginning balance at Dec. 31, 2021 | $ 120,903 | $ 30 | $ 287,345 | $ (273) | $ (166,199) | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Stock-based compensation | 2,289 | 2,289 | ||||
Issuance of common stock under equity incentive plans (in shares) | 100,155 | |||||
Issuance of common stock under equity incentive plans | 550 | 550 | ||||
Unrealized gain (loss) on investments | (774) | (774) | ||||
Unrealized loss on foreign currency translation | (14) | (14) | ||||
Net loss | (7,527) | (7,527) | ||||
Ending balance, common stock (in shares) at Mar. 31, 2022 | 30,294,434 | |||||
Ending balance, treasury stock (in shares) at Dec. 31, 2021 | 1,250,467 | |||||
Ending balance at Mar. 31, 2022 | $ 115,427 | $ 30 | 290,184 | (1,061) | (173,726) | |
Beginning balance, common stock (in shares) at Dec. 31, 2022 | 45,984,433 | 45,984,433 | ||||
Beginning balance, treasury stock (in shares) at Mar. 31, 2023 | 1,250,467 | 1,250,467 | ||||
Beginning balance at Dec. 31, 2022 | $ 179,420 | $ 46 | 404,456 | (1,121) | (223,961) | |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | ||||||
Stock-based compensation | 2,552 | 2,552 | ||||
Issuance of common stock under equity incentive plans (in shares) | 65,039 | |||||
Issuance of common stock under equity incentive plans | 113 | 113 | ||||
Exercise of warrants ( in shares ) | 1,708,535 | |||||
Exercise of warrants | 0 | $ 2 | (2) | |||
Adjustments to offering costs | 10 | 10 | ||||
Unrealized gain (loss) on investments | 745 | 745 | ||||
Unrealized loss on foreign currency translation | (31) | (31) | ||||
Net loss | $ (13,266) | (13,266) | ||||
Ending balance, common stock (in shares) at Mar. 31, 2023 | 47,758,007 | 47,758,007 | ||||
Ending balance, treasury stock (in shares) at Dec. 31, 2022 | 1,250,467 | 1,250,467 | ||||
Ending balance at Mar. 31, 2023 | $ 169,543 | $ 48 | $ 407,129 | $ (407) | $ (237,227) |
CONDENSED CONSOLIDATED STATEM_3
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | |
Operating activities | ||
Net loss | $ (13,266) | $ (7,527) |
Adjustments to reconcile net loss to net cash used in operating activities: | ||
Stock-based compensation expense | 2,552 | 2,289 |
Amortization of premium/discount on investments | (1,723) | 332 |
Depreciation expense | 140 | 148 |
Non-cash interest expense | 26 | 56 |
Loss on sale of property and equipment | 2 | 57 |
Changes in operating assets and liabilities: | ||
Accounts receivable | (277) | 24,868 |
Prepaid expenses and other current assets | (90) | 613 |
Operating lease, right-of-use asset | 168 | 146 |
Accounts payable and accrued liabilities | (4,745) | (1,851) |
Deferred revenue | (8,719) | (13,497) |
Operating lease liability | (220) | (185) |
Net cash (used in) provided by operating activities | (26,152) | 5,449 |
Investing activities | ||
Purchases of property and equipment | (93) | (26) |
Purchase of investments | (34,353) | (46,277) |
Maturities of investments | 62,796 | 8,500 |
Net cash provided by (used in) investing activities | 28,350 | (37,803) |
Financing activities | ||
Repayment of debt | (1,200) | (1,200) |
Proceeds from exercise of stock options | 113 | 550 |
Net cash used in financing activities | (1,087) | (650) |
Effect of exchange rate on cash and cash equivalents | (22) | (14) |
Net increase (decrease) in cash and cash equivalents and restricted cash | 1,089 | (33,018) |
Cash and cash equivalents and restricted cash, beginning of period | 13,630 | 68,161 |
Cash and cash equivalents and restricted cash, end of period | 14,719 | 35,143 |
Supplemental Information | ||
Cash paid for interest | $ 47 | $ 104 |
Description of Business
Description of Business | 3 Months Ended |
Mar. 31, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Description of Business | Description of BusinessAlpine Immune Sciences, Inc. (the “Company”, “Alpine”, “we”, “us”, or “our”), together with its consolidated subsidiaries, is a clinical-stage biopharmaceutical company dedicated to discovering and developing innovative, protein-based immunotherapies to treat autoimmune and inflammatory diseases. Our approach includes a proprietary scientific platform that converts native immune system proteins into differentiated, multi-targeted therapeutics. We are seeking to create first- or best-in-class multifunctional immunotherapies via our unique protein engineering technologies to improve outcomes in patients with serious diseases. We were incorporated under the laws of the State of Delaware and are headquartered in Seattle, Washington. |
Summary of Significant Accounti
Summary of Significant Accounting Policies | 3 Months Ended |
Mar. 31, 2023 | |
Accounting Policies [Abstract] | |
Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Basis of Presentation and Use of Estimates The accompanying condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and generally accepted accounting principles in the United States of America (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates inherent in the preparation of the accompanying condensed consolidated financial statements include those used for revenue recognition, accruals for clinical trial activities and other accruals, the potential outcome of uncertain tax positions that have been recognized in our condensed consolidated financial statements or tax returns, and the estimated fair value of equity-based awards. We base our estimates and assumptions on historical experience when available and on various factors we believe to be reasonable under the circumstances. Actual results could differ materially from those estimates. The accompanying condensed consolidated financial statements as of March 31, 2023 and for the three months ended March 31, 2023 and 2022 and the related interim information contained within the notes to the condensed consolidated financial statements are unaudited. The interim financial statements have been prepared on the same basis as the audited financial statements and in the opinion of management, reflect all normal recurring adjustments necessary for a fair statement of our financial position for the interim periods presented. The accompanying condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on March 23, 2023. The results of our operations for the three months ended March 31, 2023 are not necessarily indicative of the results to be expected for the full year. Principles of Consolidation Our condensed consolidated financial statements include the financial position and results of operations of Alpine Immune Sciences, Inc. and our wholly owned operating company and subsidiary, AIS Operating Co., Inc., and our wholly-owned subsidiary, Alpine Immune Sciences Australia PTY LTD. All inter-company balances and transactions have been eliminated in consolidation. Cash and Cash Equivalents and Restricted Cash We consider all highly liquid investments with an original maturity of 90 days or less at the time of purchase to be cash equivalents. Cash and cash equivalents consist of deposits with commercial banks in checking and interest-bearing accounts, and highly liquid money market funds. Restricted cash represents cash drawn on our line of credit used to establish collateral to support the security deposit on our operating lease to rent office and laboratory space in Seattle, Washington. Periodically, we maintain deposits in financial institutions in excess of government insured limits. We believe we are not exposed to significant credit risk as our deposits, which are held at financial institutions, are high credit quality securities such as money market funds, U.S. Treasury securities, and commercial paper. To date, we have not realized any losses on these deposits. Investments Our investments include funds invested in highly liquid money market funds, U.S. Treasury securities, U.S. agency securities, non-U.S. government securities, and corporate debt and commercial paper securities with a contractual maturity of each security of less than two years. These investments are classified as available-for-sale debt securities, which are recorded at fair value based on quoted prices in active markets for Level 1 assets and based on market pricing and other observable market inputs for similar securities for Level 2 assets. We classify our investments maturing within one year of the reporting date as short-term investments. If the estimated fair value of a debt security is below its amortized cost basis, we evaluate whether it is more likely than not that we will sell the security before its anticipated recovery in market value and whether credit losses exist for the related securities. A credit loss exists if the present value of expected cash flows is less than the amortized cost basis of the security. Credit-related losses are recognized as an allowance for credit losses on the balance sheet with a corresponding adjustment to earnings. Unrealized gains and losses that are unrelated to credit deterioration are reported in other comprehensive income (loss). Purchase premiums and discounts are recognized as interest income using the interest method over the terms of the securities. Realized gains and losses and declines in fair value for these investments deemed to be expected credit losses are reflected in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) using the specific-identification method. |
Net Loss Per Share
Net Loss Per Share | 3 Months Ended |
Mar. 31, 2023 | |
Earnings Per Share [Abstract] | |
Net Loss Per Share | 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. The net loss per share for the three months ended March 31, 2023 reflects the impact to weighted-average shares from issuance of 15,509,282 shares of common stock that were sold in September 2022 in an underwritten public offering, including the subsequent partial exercise of the underwriters’ over-allotment option in October 2022. The increase in the number of shares outstanding impacts the comparability of our net loss per share for each period. The common stock issuable upon the conversion or exercise of the following dilutive securities has been excluded from the diluted net loss per share calculation because their effect would have been anti-dilutive. Diluted net loss per share, therefore, is the same as basic net loss per share for the periods presented. March 31, 2023 2022 (unaudited) Warrants to purchase common stock 7,129,921 8,848,632 Stock options and restricted stock units outstanding 8,694,253 6,997,922 Total 15,824,174 15,846,554 |
Cash Equivalents and Investment
Cash Equivalents and Investments | 3 Months Ended |
Mar. 31, 2023 | |
Investments and Cash [Abstract] | |
Cash Equivalents and Investments | Cash Equivalents and Investments The amortized cost and fair value of our cash equivalents and investments are as follows (in thousands): March 31, 2023 (unaudited) Assets: Amortized Cost Gross unrealized gains Gross unrealized losses Fair market value Money market funds $ 11,744 $ — $ — $ 11,744 U.S. treasury bills 103,236 49 (391) 102,894 U.S. agency securities 23,383 67 — 23,450 Corporate debt securities and commercial paper 107,404 21 (139) 107,286 Total $ 245,767 $ 137 $ (530) $ 245,374 Classified as: Cash equivalents $ 11,744 Short-term investments 180,460 Long-term investments 53,170 Total $ 245,374 December 31, 2022 Assets: Amortized Cost Gross unrealized gains Gross unrealized losses Fair market value Money market funds $ 11,004 $ — $ — $ 11,004 U.S. treasury bills 113,964 5 (721) 113,248 U.S. agency securities 10,921 5 (11) 10,915 Non-U.S. government securities 6,060 — (22) 6,038 Corporate debt securities and commercial paper 129,940 4 (399) 129,545 Total $ 271,889 $ 14 $ (1,153) $ 270,750 Classified as: Cash equivalents $ 11,004 Short-term investments 224,265 Long-term investments 35,481 Total $ 270,750 All investments held as of March 31, 2023 and December 31, 2022 were classified as available-for-sale debt securities and consist of highly liquid funds with high credit ratings that, on their date of purchase, had a contractual maturity of two years or less. Realized gains or losses on investments for the three months ended March 31, 2023 and 2022 were insignificant. The following table summarizes the fair value and gross unrealized losses by category and disaggregated by the length of time that individual debt securities have been in a continuous unrealized loss position (in thousands): March 31, 2023 (unaudited) Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasury bills $ 50,178 $ (228) $ 17,844 $ (163) $ 68,022 $ (391) Corporate debt securities and commercial paper 22,029 (38) 15,266 (101) 37,295 (139) Total $ 72,207 $ (266) $ 33,110 $ (264) $ 105,317 $ (530) December 31, 2022 (unaudited) Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasury bills $ 82,694 $ (368) $ 17,648 $ (353) $ 100,342 $ (721) U.S. agency securities 7,552 (11) — — 7,552 (11) Non-U.S. government securities 3,012 (16) 3,026 (6) 6,038 (22) Corporate debt securities and commercial paper 27,839 (195) 22,171 (204) 50,010 (399) Total $ 121,097 $ (590) $ 42,845 $ (563) $ 163,942 $ (1,153) |
Fair Value Measurements
Fair Value Measurements | 3 Months Ended |
Mar. 31, 2023 | |
Fair Value Disclosures [Abstract] | |
Fair Value Measurements | Fair Value Measurements Cash and cash equivalents, restricted cash, receivables, accounts payable and accrued liabilities, which are recorded at invoiced amount or cost, approximate fair value based on the short-term nature of these financial instruments. Fair value is defined as the exchange price received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value, is as follows: Level 1 : Quoted prices in active markets for identical assets or liabilities. Level 2 : Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 : Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities. As of March 31, 2023 and December 31, 2022, cash of $2.7 million and $2.4 million, respectively, is excluded from the fair value table below. The following tables summarize our financial assets and liabilities measured at fair value on a recurring basis (in thousands): March 31, 2023 (unaudited) Assets: Level 1 Level 2 Level 3 Total Money market funds $ 11,744 $ — $ — $ 11,744 U.S. treasury bills 102,894 — — 102,894 U.S. agency securities — 23,450 — 23,450 Corporate debt securities and commercial paper — 107,286 — 107,286 Total $ 114,638 $ 130,736 $ — $ 245,374 December 31, 2022 Assets: Level 1 Level 2 Level 3 Total Money market funds $ 11,004 $ — $ — $ 11,004 U.S. treasury bills 113,248 — — 113,248 U.S. agency securities — 10,915 — 10,915 Non-U.S. government securities — 6,038 — 6,038 Corporate debt securities and commercial paper — 129,545 — 129,545 Total $ 124,252 $ 146,498 $ — $ 270,750 Our Level 2 assets consist of U.S. agency securities, non-U.S. government securities, corporate debt securities, and commercial paper. We review trading activity and pricing for our available-for-sale securities as of the measurement date. When sufficient quoted pricing for identical securities is not available, we use market pricing and other observable market inputs for similar securities obtained from various third-party data providers. These inputs either represent quoted prices for similar assets in active markets or have been derived from observable market data. |
Additional Balance Sheet Inform
Additional Balance Sheet Information | 3 Months Ended |
Mar. 31, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Additional Balance Sheet Information | Additional Balance Sheet Information Prepaid expenses and other current assets consist of the following (in thousands): March 31, 2023 December 31, 2022 (unaudited) Prepaid research and development $ 2,373 $ 1,881 Prepaid insurance 302 368 Prepaid other 471 394 Other receivables 45 317 Prepaid expenses and other current assets $ 3,191 $ 2,960 Accrued liabilities consist of the following (in thousands): March 31, 2023 December 31, 2022 (unaudited) Research and development services $ 7,839 $ 7,657 Employee compensation 1,665 4,110 Accrued taxes 1,831 1,847 Legal and professional fees 652 334 Accrued other 43 55 Accrued liabilities $ 12,030 $ 14,003 |
Long-term Debt
Long-term Debt | 3 Months Ended |
Mar. 31, 2023 | |
Debt Disclosure [Abstract] | |
Long-term Debt | Long-term Debt In August 2019, we entered into an Amended and Restated Loan and Security Agreement (the “Loan Agreement”) with Silicon Valley Bank (“SVB”), pursuant to which SVB agreed to extend term loans to us with an aggregate principal amount of up to $15.0 million (the “Term Loans”). Borrowings under the Loan Agreement consisted of up to three separate tranches. The initial tranche of $5.0 million was funded in August 2019, $3.0 million of which was used to repay amounts owing under our prior loan and security agreement with SVB. In March 2020, the second tranche of $5.0 million was funded to us. We did not draw down the final tranche of $5.0 million, which expired in July 2020. The Term Loans accrue interest at a floating per annum rate of 0.25% above the prime rate, subject to a floor of 5.75%, which interest is payable monthly commencing in September 2019. Upon the occurrence and during the continuance of an event of default, a default interest rate will apply that is 4.0% above the otherwise applicable interest rate. The Term Loans were interest only until September 30, 2020, however, under the Loan Agreement our interest only period automatically extended to June 30, 2021 if we received aggregate new capital of at least $40.0 million no later than June 30, 2020. We met this milestone in June 2020 in conjunction with the execution of the agreement with AbbVie Ireland Unlimited Company (“AbbVie”), discussed in detail in Note 9 . As a result of the interest only extension, the Term Loans are payable in 25 equal monthly installments of principal plus interest, with the final installment due and payable on July 1, 2023. We may prepay all, but not less than all, of the Term Loans subject to a prepayment fee equal to $75,000. Additionally, a final payment in the amount of 5.5% of the funded Term Loans is payable to SVB on the date on which the Term Loans are prepaid, paid or become due and payable in full. The final payment fees are recorded in long-term debt in our accompanying Condensed Consolidated Balance Sheets . The Loan Agreement contains customary representations and warranties, events of default and affirmative and negative covenants, including, among others, covenants that limit or restrict our ability to, among other things, incur additional indebtedness, grant liens, merge or consolidate, make acquisitions, pay dividends or other distributions or repurchase equity, make investments, dispose of assets, engage in any new lines of business, and enter into certain transactions with affiliates, in each case subject to certain exceptions. We were in compliance with our covenants as of March 31, 2023. As security for our obligations under the Loan Agreement, we granted SVB a first priority security interest on substantially all of our assets, except intellectual property, and subject to certain other exceptions. In connection with the Loan Agreement, we issued a warrant to SVB to purchase up to 52,083 shares of our common stock at a price of $4.32 per share, 17,361 shares of which became exercisable in August 2019 after we drew down the initial tranche. In March 2020, after we drew down the second tranche of our Term Loan, an additional 17,361 shares became exercisable. The remaining warrants did not vest and expired upon the expiration of the third tranche of our Term Loan. The fair value of the warrants on the date of issuance for the initial tranche and second tranche was $60,000 and $60,000, respectively, determined using the Black-Scholes option-pricing model, and was recorded as a component of equity and as a debt discount in our accompanying Condensed Consolidated Balance Sheets . We recorded a total debt discount of $812,000 in connection with the Loan Agreement, which is being amortized to interest expense using the effective interest method over the repayment term of the loan. The unamortized discount included in the current portion of long-term debt in our accompanying Condensed Consolidated Balance Sheets was $19,000 as of March 31, 2023. Interest expense associated with the amortization of the discount is recorded as non-cash interest expense on our accompanying Condensed Consolidated Statements of Cash Flows . As of March 31, 2023, $1.6 million in remaining principle and $625,000 in final payment fees due under our Loan Agreement, are classified within current portion of long-term debt in our accompanying Condensed Consolidated Balance Sheets . In May 2023, we voluntarily repaid in full the remaining outstanding carrying value of $1.4 million of our Term Loans, which consisted of $800,000 in principal and a final maturity payment of $625,000, plus prorated accrued interest. As of the pay-off date, the remaining unamortized debt discount will be accounted for as a loss on debt extinguishment and will be included in other income and (expense) in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) . |
Contingencies
Contingencies | 3 Months Ended |
Mar. 31, 2023 | |
Commitments and Contingencies Disclosure [Abstract] | |
Contingencies | Contingencies Certain tax credits received related to our research and development expenditures, which were recorded in previous years within other income within our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) , were subject to review by foreign taxing authorities. During 2022, we reached constructive agreement with the Australian Taxation Office and recorded an estimated current foreign income tax provision for the expected repayments of $1.3 million. As of March 31, 2023, accrued estimated remaining tax liabilities of $833,000, net of amounts paid in 2022, are recorded within accrued liabilities on our accompanying Condensed Consolidated Balance Sheets . |
License and Collaboration Agree
License and Collaboration Agreements | 3 Months Ended |
Mar. 31, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
License and Collaboration Agreements | License and Collaboration Agreements AbbVie In June 2020, we entered into an option and license agreement with AbbVie (the “AbbVie Agreement”) for the development of ALPN-101, (“acazicolcept”). The AbbVie Agreement grants AbbVie the exclusive option to purchase an exclusive worldwide license to acazicolcept (the “License Option”). The License Option is exercisable by AbbVie at any time and will expire 90 days from the achievement of certain development milestones. If AbbVie exercises the License Option, AbbVie will take over the future development and commercialization. Prior to the exercise of the License Option, we will perform research and development services, including conducting our Phase 2 study in systemic lupus erythematosus, based on an agreed-upon development plan (the “Development Plan”). We will be fully responsible for all costs incurred to conduct the activities under the Development Plan, provided that, AbbVie may be responsible for increased costs under the Development Plan in connection with certain material amendments proposed by AbbVie. We will also be solely responsible, at our sole cost and expense, for manufacturing and regulatory filings for acazicolcept necessary to complete activities under the Development Plan. In June 2020, in connection with the execution of the AbbVie Agreement, AbbVie paid us a nonrefundable upfront payment of $60.0 million. Prior to the exercise of the License Option, AbbVie has agreed to make cash payments upon our achievement of certain predefined pre-option development milestones (the “Alpine Development Milestones”) up to an aggregate amount of $75.0 million. In 2021, we received $45.0 million of the Alpine Development Milestones. If AbbVie exercises the License Option, they will pay a one-time cash payment of $75.0 million. Following the exercise of the License Option, AbbVie has also agreed to make aggregate cash payments of up to $205.0 million upon AbbVie’s achievement of certain development and commercial milestones and additional aggregate cash payments of up to $450.0 million upon AbbVie’s achievement of certain sales-based cash milestones, collectively referred to as (the “AbbVie Milestones”). Subsequent to commercialization, we are also eligible to receive high single-digit to low double-digit percentage royalties on worldwide net sales of licensed products. For revenue recognition purposes, we determined that our contractual promises in the AbbVie Agreement are not distinct and are interdependent with our performance obligation to provide research and development services under the Development Plan. Thus, all contractual promises related to the upfront payment and Alpine’s Development Milestones were combined into a single performance obligation. We determined the Alpine Development Milestone payments are probable of significant revenue reversal as the achievement is highly dependent on factors outside our control. Therefore, these milestone payments were fully constrained and were not initially included in the transaction price. In June 2021, we re-evaluated and updated the transaction price to include the achieved portion of the Alpine Development Milestones. We will continue to re-evaluate the transaction price each reporting period and update as uncertain events are resolved or other changes in circumstances occur. We expect to recognize the remaining deferred revenue over the remaining life of the Development Plan, which began in June 2020 and ends upon the later of the exercise or expiration of the option. The License Option and the AbbVie Milestones were determined not to be performance obligations at the inception of the contract as they did not represent material rights. If exercised, the License Option and AbbVie Milestones will be accounted for as a separate contract and will be recognized as revenue if and when triggered. Any consideration related to sales-based royalties and profit-sharing payments will be recognized when the related sales occur. Horizon In December 2021, we entered into an exclusive license and collaboration agreement with Horizon (the “Horizon Agreement”) for the development and commercialization of up to four preclinical candidates generated from our unique discovery platform. The agreement includes licensing of one of our existing preclinical biologic therapeutic programs (the “Existing Program”), as well as a research partnership to jointly develop candidates for up to three additional autoimmune and inflammatory disease programs for other designated biological targets (the “Research Programs”). These candidates include previously undisclosed multi-specific fusion protein-based therapeutic candidates for autoimmune and inflammatory diseases. We will advance candidate molecules to predefined preclinical milestones while Horizon will be responsible for the respective costs and, ultimately, Horizon will assume responsibility for development and commercialization activities and costs. In connection with the execution of the Horizon Agreement in December 2021, we entered into a stock purchase agreement under which Horizon purchased 951,980 shares of our common stock in a private placement for approximately $15.76 per share and aggregate proceeds of $15.0 million. The shares were sold at a 25% premium to the volume-weighted average share price of our common stock for a specified 30-day period prior to entering into the agreement. The fair value of the common stock issued to Horizon of $11.9 million was recorded to equity, based on the closing price of common stock on the effective date of the Horizon Agreement. For accounting purposes, the $3.1 million difference between the cash proceeds and the fair value of the common stock was treated as additional consideration attributable to the Horizon Agreement. Under the terms of the agreements, Horizon also paid us a non-refundable upfront payment of $25.0 million in the first quarter of 2022. In addition, we are eligible to receive up to $381.0 million per program, or up to approximately $1.5 billion in total, in future success-based payments related to development, regulatory and commercial milestones. Furthermore, we are eligible to receive tiered royalties from a mid-single digit percentage to a low double-digit percentage on global net sales. In addition to proceeds from the non-refundable upfront payment, we have recognized $1.4 million from research and development support provided by us through March 31, 2023. For revenue recognition purposes, we determined the transaction price at inception was $28.1 million, which consists of the upfront payment of $25.0 million and the $3.1 million premium on the stock purchase, and that the Existing Program and each Research Program are distinct performance obligations. We allocated revenue to each performance obligation based on its relative stand-alone selling price. The future success-based payments related to development and regulatory milestones are probable of significant revenue reversal as the achievement is highly dependent on factors outside our control. Therefore, these milestone payments are fully constrained and are not initially included in the transaction price. We will continue to re-evaluate the transaction price each reporting period and update as uncertain events are resolved or other changes in circumstances occur. Any consideration related to commercial milestones and royalties will be recognized when the related sales occur. Adaptimmune In May 2019, we entered into a collaboration and licensing agreement with Adaptimmune Therapeutics plc (“Adaptimmune”) to develop next-generation SPEAR T cell products (the “Adaptimmune Agreement”). Under the Adaptimmune Agreement, we are to perform certain research services and grant Adaptimmune an exclusive license to programs from our secreted immunomodulatory protein (“SIP”) and transmembrane immunomodulatory protein (“TIP”) technologies. Through March 31, 2023, we have recorded a total of $3.0 million in license payments under the terms of the Adaptimmune Agreement consisting of a $2.0 million upfront license payment received in June 2019 and an additional $1.0 million license fee upon Adaptimmune’s selection of an additional research program in June 2022. We have also recognized $2.1 million in research support payments to fund ongoing programs through March 31, 2023. In addition, we are eligible for research support payments, one-time payments and downstream development and commercialization milestones of up to $288.0 million, if respective pre-specified milestones for each program are achieved. We are also eligible to receive low-single digit percentage royalties on worldwide net sales of the applicable products. For revenue recognition purposes, licensing and research support fees billed under the agreement are being recorded as deferred revenue and recognized to revenue based on employee hours contributed to each performance obligation. Contract balances and revenue recognition We report contract assets resulting from unconditional rights to consideration related to upfront payments, and for completed but unpaid research and development services within accounts receivable in our accompanying Condensed Consolidated Balance Sheets . Contract liabilities, representing advance consideration for licensing rights bundled with research and development services and other promises for which the underlying performance obligations have not yet been satisfied, are reported as deferred revenue in our accompanying Condensed Consolidated Balance Sheets . Contract liabilities are presented as current and noncurrent based on estimated timing of when the underlying performance obligations will be met. Respective balances are as follows (in thousands): March 31, 2023 December 31, 2022 (unaudited) Contract Assets $ 668 $ 392 Contract Liabilities $ 66,037 $ 74,756 We use cost-based input methods to measure progress towards completion of our performance obligations and to calculate the corresponding revenue to recognize under our contracts with customers each period. In applying the cost-based input, we use actual costs incurred relative to budgeted costs for each combined performance obligation. Actual costs consist primarily of labor related to internal personnel and third-party contracts. Revenue is recognized based on the percentage of costs incurred relative to the total estimated costs for the performance obligation. A cost-based input method of revenue recognition requires management to estimate the costs to complete our performance obligations. In making such estimates, significant judgment is required to evaluate assumptions related to cost estimates. The cumulative effect of revisions to estimated costs to complete our performance obligations will be recorded in the period in which changes are identified and amounts can be reasonably estimated. A significant change in these assumptions and estimates could have a material impact on the timing and amount of revenue recognized in future periods. Collaboration revenue recognized in our accompanying Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) , disaggregated by customer, is as follows (in thousands): Three Months Ended March 31, 2023 2022 (unaudited) AbbVie $ 5,598 $ 5,960 Horizon 3,455 7,669 Adaptimmune 334 — Total collaboration revenue $ 9,387 $ 13,629 Revenue recognized during the period that was included in the opening contract liability balance was $8.8 million and $13.5 million for the three months ended March 31, 2023 and 2022, respectively. |
Stockholders_ Equity
Stockholders’ Equity | 3 Months Ended |
Mar. 31, 2023 | |
Stockholders' Equity Note [Abstract] | |
Stockholders’ Equity | Stockholders’ Equity Securities Offering In April 2023, we entered into a sales agreement (the “Sales Agreement”) with Cowen and Company, LLC (“TD Cowen”) to sell shares of our common stock, from time to time, through an “at the market” equity offering for up to $100.0 million in aggregate gross proceeds. TD Cowen will act as the sales agent and will be entitled to compensation for services of up to 3.0% of the gross sales proceeds from shares sold through TD Cowen under the Sales Agreement. The shares will be issued pursuant to our shelf registration statement on Form S-3 (File No. 333-271517), which was filed with the SEC on April 28, 2023 and declared effective on May 9, 2023. We will file a final prospectus supplement with the SEC relating to the offer and sale of the shares pursuant to the Sales Agreement. Common Stock Warrants In connection with the exercise of certain prefunded warrants, during the three months ended March 31, 2023, and subsequent to March 31, 2023, we issued 1,708,535 shares and 236,567 shares of common stock, respectively. Equity Incentive Plans On January 1, 2023, in connection with our 2018 Equity Incentive Plan (the “2018 Plan”) annual increase provision, a total of 1,500,000 additional shares were automatically added to the shares authorized under the 2018 Plan. During the three months ended March 31, 2023, we issued stock option grants totaling 1,711,195 shares with a weighted average exercise price of $7.66 per share to eligible employees and board members. Stock-Based Compensation Expense We use the Black-Scholes option pricing model to estimate the fair value of stock options at the grant date. The fair value of restricted stock units (“RSUs”) is equal to the closing stock price on the date of grant. We recognize the fair value of stock-based compensation as compensation expense over the requisite service period, which is the vesting period. Stock-based compensation is classified in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) as follows (in thousands): Three Months Ended March 31, 2023 2022 (unaudited) Research and development $ 1,481 $ 1,308 General and administrative 1,071 981 Total stock-based compensation expense $ 2,552 $ 2,289 |
Income Taxes
Income Taxes | 3 Months Ended |
Mar. 31, 2023 | |
Income Tax Disclosure [Abstract] | |
Income Taxes | Income Taxes We are subject to income taxes in the United States and Australia and our effective tax rate is calculated quarterly based upon current assumptions relating to the full year’s estimated operating results and various tax-related items. Each quarter an estimate of the annual effective tax rate is updated should we revise our forecast of earnings based upon our operating results. If there is a change in the estimated effective annual tax rate, a cumulative adjustment is made. Our effective tax rate was 0% and 0.05% for the three months ended March 31, 2023 and 2022, respectively. The difference between the effective tax rate of 0% and 0.05% and the U.S. federal statutory rate of 21% for the three months ended March 31, 2023 and 2022, respectively, was primarily due to recognizing a full valuation allowance on our domestic deferred tax assets and partial valuation allowance on our foreign deferred tax assets and tax benefits relating to research and development tax credits. As of March 31, 2023, we determined that, based on an evaluation of our sources of income and all available evidence, both positive and negative, including our latest forecasts and cumulative losses in recent years, it was more likely than not that none of our domestic deferred tax assets would be realized and, therefore, we continued to record a full domestic valuation allowance. As of March 31, 2023, we determined that it was more likely than not that only a portion of our foreign deferred tax assets would be realized and have recorded a partial foreign valuation allowance. We did not record significant current tax liabilities or expense during the three months ended March 31, 2023 or 2022. |
Summary of Significant Accoun_2
Summary of Significant Accounting Policies (Policies) | 3 Months Ended |
Mar. 31, 2023 | |
Accounting Policies [Abstract] | |
Basis of Presentation and Use of Estimates | Basis of Presentation and Use of Estimates The accompanying condensed consolidated financial statements have been prepared in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”) and generally accepted accounting principles in the United States of America (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make judgments, estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Significant estimates inherent in the preparation of the accompanying condensed consolidated financial statements include those used for revenue recognition, accruals for clinical trial activities and other accruals, the potential outcome of uncertain tax positions that have been recognized in our condensed consolidated financial statements or tax returns, and the estimated fair value of equity-based awards. We base our estimates and assumptions on historical experience when available and on various factors we believe to be reasonable under the circumstances. Actual results could differ materially from those estimates. The accompanying condensed consolidated financial statements as of March 31, 2023 and for the three months ended March 31, 2023 and 2022 and the related interim information contained within the notes to the condensed consolidated financial statements are unaudited. The interim financial statements have been prepared on the same basis as the audited financial statements and in the opinion of management, reflect all normal recurring adjustments necessary for a fair statement of our financial position for the interim periods presented. The accompanying condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2022, filed with the SEC on March 23, 2023. The results of our operations for the three months ended March 31, 2023 are not necessarily indicative of the results to be expected for the full year. |
Principles of Consolidation | Principles of ConsolidationOur condensed consolidated financial statements include the financial position and results of operations of Alpine Immune Sciences, Inc. and our wholly owned operating company and subsidiary, AIS Operating Co., Inc., and our wholly-owned subsidiary, Alpine Immune Sciences Australia PTY LTD. All inter-company balances and transactions have been eliminated in consolidation. |
Cash and Cash Equivalents and Restricted Cash | Cash and Cash Equivalents and Restricted Cash We consider all highly liquid investments with an original maturity of 90 days or less at the time of purchase to be cash equivalents. Cash and cash equivalents consist of deposits with commercial banks in checking and interest-bearing accounts, and highly liquid money market funds. Restricted cash represents cash drawn on our line of credit used to establish collateral to support the security deposit on our operating lease to rent office and laboratory space in Seattle, Washington. Periodically, we maintain deposits in financial institutions in excess of government insured limits. We believe we are not exposed to significant credit risk as our deposits, which are held at financial institutions, are high credit quality securities such as money market funds, U.S. Treasury securities, and commercial paper. To date, we have not realized any losses on these deposits. |
Investments | Investments Our investments include funds invested in highly liquid money market funds, U.S. Treasury securities, U.S. agency securities, non-U.S. government securities, and corporate debt and commercial paper securities with a contractual maturity of each security of less than two years. These investments are classified as available-for-sale debt securities, which are recorded at fair value based on quoted prices in active markets for Level 1 assets and based on market pricing and other observable market inputs for similar securities for Level 2 assets. We classify our investments maturing within one year of the reporting date as short-term investments. If the estimated fair value of a debt security is below its amortized cost basis, we evaluate whether it is more likely than not that we will sell the security before its anticipated recovery in market value and whether credit losses exist for the related securities. A credit loss exists if the present value of expected cash flows is less than the amortized cost basis of the security. Credit-related losses are recognized as an allowance for credit losses on the balance sheet with a corresponding adjustment to earnings. Unrealized gains and losses that are unrelated to credit deterioration are reported in other comprehensive income (loss). Purchase premiums and discounts are recognized as interest income using the interest method over the terms of the securities. Realized gains and losses and declines in fair value for these investments deemed to be expected credit losses are reflected in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) using the specific-identification method. |
Net Loss Per Share | Net Loss Per ShareBasic net loss per share is computed by dividing net loss by the weighted-average number of common shares outstanding during the period. |
Fair Value Measurements | Fair Value Measurements Cash and cash equivalents, restricted cash, receivables, accounts payable and accrued liabilities, which are recorded at invoiced amount or cost, approximate fair value based on the short-term nature of these financial instruments. Fair value is defined as the exchange price received for an asset or paid to transfer a liability, or an exit price, in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value, is as follows: Level 1 : Quoted prices in active markets for identical assets or liabilities. Level 2 : Observable inputs other than Level 1 prices, such as quoted prices for similar assets or liabilities, quoted prices in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. Level 3 : Unobservable inputs supported by little or no market activity and significant to the fair value of the assets or liabilities. |
Stock-Based Compensation Expense | Stock-Based Compensation Expense |
Net Loss Per Share (Tables)
Net Loss Per Share (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Earnings Per Share [Abstract] | |
Schedule of Antidilutive Securities Excluded from Diluted Net Loss Per Share Attributable to Common Stockholders | The common stock issuable upon the conversion or exercise of the following dilutive securities has been excluded from the diluted net loss per share calculation because their effect would have been anti-dilutive. Diluted net loss per share, therefore, is the same as basic net loss per share for the periods presented. March 31, 2023 2022 (unaudited) Warrants to purchase common stock 7,129,921 8,848,632 Stock options and restricted stock units outstanding 8,694,253 6,997,922 Total 15,824,174 15,846,554 |
Cash Equivalents and Investme_2
Cash Equivalents and Investments (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Investments and Cash [Abstract] | |
Schedule of Amortized Cost and Fair Value of Cash Equivalents and Investments | The amortized cost and fair value of our cash equivalents and investments are as follows (in thousands): March 31, 2023 (unaudited) Assets: Amortized Cost Gross unrealized gains Gross unrealized losses Fair market value Money market funds $ 11,744 $ — $ — $ 11,744 U.S. treasury bills 103,236 49 (391) 102,894 U.S. agency securities 23,383 67 — 23,450 Corporate debt securities and commercial paper 107,404 21 (139) 107,286 Total $ 245,767 $ 137 $ (530) $ 245,374 Classified as: Cash equivalents $ 11,744 Short-term investments 180,460 Long-term investments 53,170 Total $ 245,374 December 31, 2022 Assets: Amortized Cost Gross unrealized gains Gross unrealized losses Fair market value Money market funds $ 11,004 $ — $ — $ 11,004 U.S. treasury bills 113,964 5 (721) 113,248 U.S. agency securities 10,921 5 (11) 10,915 Non-U.S. government securities 6,060 — (22) 6,038 Corporate debt securities and commercial paper 129,940 4 (399) 129,545 Total $ 271,889 $ 14 $ (1,153) $ 270,750 Classified as: Cash equivalents $ 11,004 Short-term investments 224,265 Long-term investments 35,481 Total $ 270,750 |
Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value | The following table summarizes the fair value and gross unrealized losses by category and disaggregated by the length of time that individual debt securities have been in a continuous unrealized loss position (in thousands): March 31, 2023 (unaudited) Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasury bills $ 50,178 $ (228) $ 17,844 $ (163) $ 68,022 $ (391) Corporate debt securities and commercial paper 22,029 (38) 15,266 (101) 37,295 (139) Total $ 72,207 $ (266) $ 33,110 $ (264) $ 105,317 $ (530) December 31, 2022 (unaudited) Less Than 12 Months 12 Months or Greater Total Fair Value Unrealized Losses Fair Value Unrealized Losses Fair Value Unrealized Losses U.S. treasury bills $ 82,694 $ (368) $ 17,648 $ (353) $ 100,342 $ (721) U.S. agency securities 7,552 (11) — — 7,552 (11) Non-U.S. government securities 3,012 (16) 3,026 (6) 6,038 (22) Corporate debt securities and commercial paper 27,839 (195) 22,171 (204) 50,010 (399) Total $ 121,097 $ (590) $ 42,845 $ (563) $ 163,942 $ (1,153) |
Fair Value Measurements (Tables
Fair Value Measurements (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Fair Value Disclosures [Abstract] | |
Schedule of Financial Assets Measured at Fair Value on Recurring Basis | The following tables summarize our financial assets and liabilities measured at fair value on a recurring basis (in thousands): March 31, 2023 (unaudited) Assets: Level 1 Level 2 Level 3 Total Money market funds $ 11,744 $ — $ — $ 11,744 U.S. treasury bills 102,894 — — 102,894 U.S. agency securities — 23,450 — 23,450 Corporate debt securities and commercial paper — 107,286 — 107,286 Total $ 114,638 $ 130,736 $ — $ 245,374 December 31, 2022 Assets: Level 1 Level 2 Level 3 Total Money market funds $ 11,004 $ — $ — $ 11,004 U.S. treasury bills 113,248 — — 113,248 U.S. agency securities — 10,915 — 10,915 Non-U.S. government securities — 6,038 — 6,038 Corporate debt securities and commercial paper — 129,545 — 129,545 Total $ 124,252 $ 146,498 $ — $ 270,750 |
Additional Balance Sheet Info_2
Additional Balance Sheet Information (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Schedule of Prepaid Expenses and Other Current Assets | Prepaid expenses and other current assets consist of the following (in thousands): March 31, 2023 December 31, 2022 (unaudited) Prepaid research and development $ 2,373 $ 1,881 Prepaid insurance 302 368 Prepaid other 471 394 Other receivables 45 317 Prepaid expenses and other current assets $ 3,191 $ 2,960 |
Schedule of Accrued Liabilities | Accrued liabilities consist of the following (in thousands): March 31, 2023 December 31, 2022 (unaudited) Research and development services $ 7,839 $ 7,657 Employee compensation 1,665 4,110 Accrued taxes 1,831 1,847 Legal and professional fees 652 334 Accrued other 43 55 Accrued liabilities $ 12,030 $ 14,003 |
License and Collaboration Agr_2
License and Collaboration Agreements (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
Schedule of Contract Balances | Contract liabilities are presented as current and noncurrent based on estimated timing of when the underlying performance obligations will be met. Respective balances are as follows (in thousands): March 31, 2023 December 31, 2022 (unaudited) Contract Assets $ 668 $ 392 Contract Liabilities $ 66,037 $ 74,756 |
Schedule of Disaggregation of Revenue | Collaboration revenue recognized in our accompanying Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) , disaggregated by customer, is as follows (in thousands): Three Months Ended March 31, 2023 2022 (unaudited) AbbVie $ 5,598 $ 5,960 Horizon 3,455 7,669 Adaptimmune 334 — Total collaboration revenue $ 9,387 $ 13,629 |
Stockholders_ Equity (Tables)
Stockholders’ Equity (Tables) | 3 Months Ended |
Mar. 31, 2023 | |
Stockholders' Equity Note [Abstract] | |
Schedule of Stock-based Compensation Expense | Stock-based compensation is classified in our Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) as follows (in thousands): Three Months Ended March 31, 2023 2022 (unaudited) Research and development $ 1,481 $ 1,308 General and administrative 1,071 981 Total stock-based compensation expense $ 2,552 $ 2,289 |
Summary of Significant Accoun_3
Summary of Significant Accounting Policies (Details) | Mar. 31, 2023 | Dec. 31, 2022 |
Accounting Policies [Abstract] | ||
Debt securities, available-for-sale, term (less than) | 2 years | 2 years |
Net Loss Per Share - Narrative
Net Loss Per Share - Narrative (Details) | 2 Months Ended |
Oct. 31, 2022 shares | |
Common Stock | |
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items] | |
Stock issued (in shares) | 15,509,282 |
Net Loss Per Share - Schedule o
Net Loss Per Share - Schedule of Anti-dilutive Securities (Details) - shares | 3 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | |
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items] | ||
Antidilutive securities excluded from computation of earnings per share (in shares) | 15,824,174 | 15,846,554 |
Warrants to purchase common stock | ||
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items] | ||
Antidilutive securities excluded from computation of earnings per share (in shares) | 7,129,921 | 8,848,632 |
Stock options and restricted stock units outstanding | ||
Antidilutive Securities Excluded from Computation of Earnings per Share [Line Items] | ||
Antidilutive securities excluded from computation of earnings per share (in shares) | 8,694,253 | 6,997,922 |
Cash Equivalents and Investme_3
Cash Equivalents and Investments - Summary of Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | $ 245,767 | $ 271,889 |
Gross unrealized gains | 137 | 14 |
Gross unrealized losses | (530) | (1,153) |
Fair market value | 245,374 | 270,750 |
Cash equivalents | ||
Debt Securities, Available-for-sale [Line Items] | ||
Fair market value | 11,744 | 11,004 |
Short-term investments | ||
Debt Securities, Available-for-sale [Line Items] | ||
Fair market value | 180,460 | 224,265 |
Long-term investments | ||
Debt Securities, Available-for-sale [Line Items] | ||
Fair market value | 53,170 | 35,481 |
Money market funds | ||
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | 11,744 | 11,004 |
Gross unrealized gains | 0 | 0 |
Gross unrealized losses | 0 | 0 |
Fair market value | 11,744 | 11,004 |
U.S. treasury bills | ||
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | 103,236 | 113,964 |
Gross unrealized gains | 49 | 5 |
Gross unrealized losses | (391) | (721) |
Fair market value | 102,894 | 113,248 |
U.S. agency securities | ||
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | 23,383 | 10,921 |
Gross unrealized gains | 67 | 5 |
Gross unrealized losses | 0 | (11) |
Fair market value | 23,450 | 10,915 |
Corporate debt securities and commercial paper | ||
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | 107,404 | 129,940 |
Gross unrealized gains | 21 | 4 |
Gross unrealized losses | (139) | (399) |
Fair market value | $ 107,286 | 129,545 |
Non-U.S. government securities | ||
Debt Securities, Available-for-sale [Line Items] | ||
Amortized Cost | 6,060 | |
Gross unrealized gains | 0 | |
Gross unrealized losses | (22) | |
Fair market value | $ 6,038 |
Cash Equivalents and Investme_4
Cash Equivalents and Investments - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | ||
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | |
Investments and Cash [Abstract] | |||
Debt securities, available-for-sale, term (less than) | 2 years | 2 years | |
Realized gains or losses on securities | $ 0 | $ 0 |
Cash Equivalents and Investme_5
Cash Equivalents and Investments - Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] | ||
Debt securities, less than 12 months, fair value | $ 72,207 | $ 121,097 |
Debt securities, less than 12 months, unrealized losses | (266) | (590) |
Debt securities, 12 months or greater, fair value | 33,110 | 42,845 |
Debt securities, 12 months or greater, unrealized losses | (264) | (563) |
Debt securities, total, fair value | 105,317 | 163,942 |
Debt securities, total, unrealized losses | (530) | (1,153) |
U.S. treasury bills | ||
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] | ||
Debt securities, less than 12 months, fair value | 50,178 | 82,694 |
Debt securities, less than 12 months, unrealized losses | (228) | (368) |
Debt securities, 12 months or greater, fair value | 17,844 | 17,648 |
Debt securities, 12 months or greater, unrealized losses | (163) | (353) |
Debt securities, total, fair value | 68,022 | 100,342 |
Debt securities, total, unrealized losses | (391) | (721) |
Corporate debt securities and commercial paper | ||
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] | ||
Debt securities, less than 12 months, fair value | 22,029 | 27,839 |
Debt securities, less than 12 months, unrealized losses | (38) | (195) |
Debt securities, 12 months or greater, fair value | 15,266 | 22,171 |
Debt securities, 12 months or greater, unrealized losses | (101) | (204) |
Debt securities, total, fair value | 37,295 | 50,010 |
Debt securities, total, unrealized losses | $ (139) | (399) |
U.S. agency securities | ||
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] | ||
Debt securities, less than 12 months, fair value | 7,552 | |
Debt securities, less than 12 months, unrealized losses | (11) | |
Debt securities, 12 months or greater, fair value | 0 | |
Debt securities, 12 months or greater, unrealized losses | 0 | |
Debt securities, total, fair value | 7,552 | |
Debt securities, total, unrealized losses | (11) | |
Non-U.S. government securities | ||
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] | ||
Debt securities, less than 12 months, fair value | 3,012 | |
Debt securities, less than 12 months, unrealized losses | (16) | |
Debt securities, 12 months or greater, fair value | 3,026 | |
Debt securities, 12 months or greater, unrealized losses | (6) | |
Debt securities, total, fair value | 6,038 | |
Debt securities, total, unrealized losses | $ (22) |
Fair Value Measurements - Narra
Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022 |
Fair Value Disclosures [Abstract] | ||
Cash | $ 2.7 | $ 2.4 |
Fair Value Measurements - Sched
Fair Value Measurements - Schedule of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | $ 245,374 | $ 270,750 |
Money market funds | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 11,744 | 11,004 |
U.S. treasury bills | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 102,894 | 113,248 |
U.S. agency securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 23,450 | 10,915 |
Non-U.S. government securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 6,038 | |
Corporate debt securities and commercial paper | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 107,286 | 129,545 |
Level 1 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 114,638 | 124,252 |
Level 1 | Money market funds | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 11,744 | 11,004 |
Level 1 | U.S. treasury bills | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 102,894 | 113,248 |
Level 1 | U.S. agency securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 1 | Non-U.S. government securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | |
Level 1 | Corporate debt securities and commercial paper | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 2 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 130,736 | 146,498 |
Level 2 | Money market funds | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 2 | U.S. treasury bills | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 2 | U.S. agency securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 23,450 | 10,915 |
Level 2 | Non-U.S. government securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 6,038 | |
Level 2 | Corporate debt securities and commercial paper | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 107,286 | 129,545 |
Level 3 | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 3 | Money market funds | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 3 | U.S. treasury bills | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 3 | U.S. agency securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | 0 |
Level 3 | Non-U.S. government securities | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | 0 | |
Level 3 | Corporate debt securities and commercial paper | ||
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
Fair value assets disclosure | $ 0 | $ 0 |
Additional Balance Sheet Info_3
Additional Balance Sheet Information - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
Prepaid research and development | $ 2,373 | $ 1,881 |
Prepaid insurance | 302 | 368 |
Prepaid other | 471 | 394 |
Other receivables | 45 | 317 |
Prepaid expenses and other current assets | $ 3,191 | $ 2,960 |
Additional Balance Sheet Info_4
Additional Balance Sheet Information - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
Research and development services | $ 7,839 | $ 7,657 |
Employee compensation | 1,665 | 4,110 |
Accrued taxes | 1,831 | 1,847 |
Legal and professional fees | 652 | 334 |
Accrued other | 43 | 55 |
Accrued liabilities | $ 12,030 | $ 14,003 |
Long-term Debt (Details)
Long-term Debt (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | |||||
Mar. 31, 2020 USD ($) | Aug. 31, 2019 USD ($) tranche installment $ / shares shares | May 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Jul. 31, 2020 USD ($) | Mar. 30, 2020 USD ($) shares | |
Debt Instrument [Line Items] | ||||||
Unamortized debt discount | $ 19 | |||||
Long-term debt | 1,600 | |||||
Prepayment fee | $ 625 | |||||
SVB Term Loan | Subsequent Event | Forecast | ||||||
Debt Instrument [Line Items] | ||||||
Prepayment fee | $ 625 | |||||
Long-term debt, gross | 1,400 | |||||
Debt instrument, face amount | $ 800 | |||||
Term Loans | ||||||
Debt Instrument [Line Items] | ||||||
Debt instrument, total discount recorded | $ 812 | |||||
Term Loans | Term Loans, Tranche One | Common Stock Warrant | ||||||
Debt Instrument [Line Items] | ||||||
Fair value of warrant | 60 | |||||
Term Loans | Term Loans, Tranche Two | Common Stock Warrant | ||||||
Debt Instrument [Line Items] | ||||||
Fair value of warrant | $ 60 | |||||
Silicon Valley Bank | Original Agreement | ||||||
Debt Instrument [Line Items] | ||||||
Repayments of debt | 3,000 | |||||
Prepayment fee (equal to) | 75 | |||||
Silicon Valley Bank | Term Loans | ||||||
Debt Instrument [Line Items] | ||||||
Maximum borrowing capacity, amount | $ 15,000 | |||||
Number of tranches (up to) | tranche | 3 | |||||
Debt instrument variable interest rate (as a percent) | 0.25% | |||||
Percentage of default interest rate (as a percent) | 4% | |||||
New capital milestone for continuation of interest only payment period | $ 40,000 | |||||
Number of equal monthly installments payable | installment | 25 | |||||
Final payment percentage (as a percent) | 5.50% | |||||
Silicon Valley Bank | Term Loans | Common Stock Warrant | ||||||
Debt Instrument [Line Items] | ||||||
Warrants issued (in shares) | shares | 52,083 | |||||
Warrants issued, exercise price (in dollars per share) | $ / shares | $ 4.32 | |||||
Number of shares exercisable (in shares) | shares | 17,361 | 17,361 | ||||
Silicon Valley Bank | Term Loans | Base Rate | ||||||
Debt Instrument [Line Items] | ||||||
Debt instrument, interest rate floor (as a percent) | 5.75% | |||||
Silicon Valley Bank | Term Loans | Term Loans, Tranche One | ||||||
Debt Instrument [Line Items] | ||||||
Proceeds from borrowings, net of issuance costs | $ 5,000 | |||||
Silicon Valley Bank | Term Loans | Term Loans, Tranche Two | ||||||
Debt Instrument [Line Items] | ||||||
Proceeds from borrowings, net of issuance costs | $ 5,000 | |||||
Silicon Valley Bank | Term Loans | Term Loans, Tranche Three | ||||||
Debt Instrument [Line Items] | ||||||
Unused borrowing capacity, expired amount | $ 5,000 |
Contingencies (Details)
Contingencies (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | |||
Current tax expense | $ 0 | $ 0 | $ 1,300 |
Accrued estimated remaining tax liabilities | $ 833 |
License and Collaboration Agr_3
License and Collaboration Agreements - Narrative (Details) $ / shares in Units, $ in Thousands | 1 Months Ended | 3 Months Ended | 15 Months Ended | 46 Months Ended | 47 Months Ended | |||||
Dec. 31, 2021 USD ($) program candidate $ / shares shares | Mar. 31, 2023 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Jun. 30, 2020 USD ($) payment | Jun. 30, 2019 USD ($) | |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 66,037 | $ 66,037 | $ 66,037 | $ 66,037 | $ 74,756 | |||||
Revenue recognized from contract with customer | 8,800 | $ 13,500 | ||||||||
AbbVie | Product | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Potential future revenue recognition, milestone method, number of payments | payment | 1 | |||||||||
Potential cash payment upon exercising license option | $ 75,000 | |||||||||
Potential cash payment upon achievement of certain development and commercial milestones | 205,000 | |||||||||
Potential cash payment upon achievement of certain sales-based cash milestones | 450,000 | |||||||||
AbbVie | Product | Maximum | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Potential future revenue recognition milestones receivable | 75,000 | |||||||||
AbbVie | Product | Upfront License Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 60,000 | |||||||||
AbbVie | Product | Achieved Milestone | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 45,000 | |||||||||
Horizon | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Number of preclinical candidates | candidate | 4 | |||||||||
Number of existing programs | program | 1 | |||||||||
Number of additional programs | program | 3 | |||||||||
Horizon | Common Stock | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Sale of stock, premium on price per share, stock price period | 30 days | |||||||||
Horizon | Private Placement | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Number of shares issued in transaction (in shares) | shares | 951,980 | |||||||||
Purchase price per share (in dollars per share) | $ / shares | $ 15.76 | |||||||||
Sale of stock, consideration received on transaction | $ 15,000 | |||||||||
Sale of stock, premium on price per share, stock price period | 25% | |||||||||
Sale of stock, consideration received on transaction, fair value portion | $ 11,900 | |||||||||
Sale of stock, consideration received on transaction, additional consideration portion | 3,100 | |||||||||
Horizon | Product | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | 28,100 | |||||||||
Potential future revenue recognition milestones receivable | 1,500,000 | |||||||||
Potential future revenue recognition milestones receivable, per program | 381,000 | |||||||||
Horizon | Product | Upfront Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | 25,000 | $ 25,000 | ||||||||
Horizon | Product | Research and Development | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Revenue recognized from contract with customer | 1,400 | |||||||||
Horizon | Product | Premium Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 3,100 | |||||||||
Adaptimmune | Product | Maximum | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Potential future milestones receivable (up to) | $ 288,000 | $ 288,000 | 288,000 | 288,000 | ||||||
Adaptimmune | Product | Upfront License Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 2,000 | |||||||||
Adaptimmune | Product | License Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Revenue recognized from contract with customer | $ 3,000 | |||||||||
Adaptimmune | Product | License Fee and Research Support Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Contract liabilities | $ 1,000 | |||||||||
Adaptimmune | Product | Research Support Payment | ||||||||||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||||||||||
Revenue recognized from contract with customer | $ 2,100 |
License and Collaboration Agr_4
License and Collaboration Agreements - Contract Balances (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022 |
Organization, Consolidation and Presentation of Financial Statements [Abstract] | ||
Contract Assets | $ 668 | $ 392 |
Contract Liabilities | $ 66,037 | $ 74,756 |
License and Collaboration Agr_5
License and Collaboration Agreements - Collaboration Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
Collaboration revenue | $ 9,387 | $ 13,629 |
AbbVie | ||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
Collaboration revenue | 5,598 | 5,960 |
Horizon | ||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
Collaboration revenue | 3,455 | 7,669 |
Adaptimmune | ||
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] | ||
Collaboration revenue | $ 334 | $ 0 |
Stockholders_ Equity - Narrativ
Stockholders’ Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | ||
Jan. 01, 2023 | Apr. 30, 2023 | Mar. 31, 2023 | May 11, 2023 | |
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Options, grants in period (in shares) | 1,711,195 | |||
Grants in period, weighted average exercise price (in dollars per share) | $ 7.66 | |||
Prefunded Warrants | ||||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Warrants issued (in shares) | 1,708,535 | |||
Prefunded Warrants | Subsequent Event | ||||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Warrants issued (in shares) | 236,567 | |||
Financing Agreements | Cowen | Subsequent Event | ||||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Percentage of compensation for services | 3% | |||
2018 Plan | ||||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Number of additional shares authorized (in shares) | 1,500,000 | |||
Public Stock Offering | Subsequent Event | ||||
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||||
Maximum amount of common stock eligible to be sold (up to) | $ 100 |
Stockholders_ Equity - Stock-Ba
Stockholders’ Equity - Stock-Based Compensation (Details) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | |
Class of Stock [Line Items] | ||
Total stock-based compensation expense | $ 2,552 | $ 2,289 |
Research and development | ||
Class of Stock [Line Items] | ||
Total stock-based compensation expense | 1,481 | 1,308 |
General and administrative | ||
Class of Stock [Line Items] | ||
Total stock-based compensation expense | $ 1,071 | $ 981 |
Income Taxes (Details)
Income Taxes (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended | |
Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | |
Income Tax Disclosure [Abstract] | |||
Effective tax rate (as a percent) | 0% | 0.05% | |
Current tax expense | $ 0 | $ 0 | $ 1,300 |