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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Accumulated Other Comprehensive Gain (Loss)
--- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2022 | $ 79,998 | $ 390 | $ 1,493,469 | $ (1,413,642) | $ (219)
Balances (in shares) at Dec. 31, 2022 |  | 390,262,524 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (38,122) |  |  | (38,122) |
Other comprehensive income (loss) | 75 |  |  |  | 75
Foreign currency translation adjustment | (16) |  |  |  | (16)
Issuances of common stock and pre-funded warrant to purchase common stock in public offering, net of issuance costs | 213,337 | $ 68 | 213,269 |  |
Issuances of common stock and pre-funded warrant to purchase common stock in public offering, net of issuance costs (in shares) |  | 68,007,741 |  |  |
Issuances of common stock in connection with exercise of warrants | 59,835 | $ 45 | 59,790 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 44,983,193 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 112 | $ 1 | 111 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 9,360 |  |  |
Issuance of common stock under equity plans | 7,875 | $ 5 | 7,870 |  |
Issuance of common stock under equity plans (in shares) |  | 5,469,028 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 2,961 |  | 2,961 |  |
Balances at Mar. 31, 2023 | 326,055 | $ 509 | 1,777,470 | (1,451,764) | (160)
Balances (in shares) at Mar. 31, 2023 |  | 508,731,846 |  |  |
Balances at Dec. 31, 2022 | 79,998 | $ 390 | 1,493,469 | (1,413,642) | (219)
Balances (in shares) at Dec. 31, 2022 |  | 390,262,524 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (132,154) |  |  |  |
Balances at Sep. 30, 2023 | 290,614 | $ 542 | 1,836,818 | (1,545,796) | (950)
Balances (in shares) at Sep. 30, 2023 |  | 542,479,666 |  |  |
Balances at Mar. 31, 2023 | 326,055 | $ 509 | 1,777,470 | (1,451,764) | (160)
Balances (in shares) at Mar. 31, 2023 |  | 508,731,846 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (49,227) |  |  | (49,227) |
Other comprehensive income (loss) | (786) |  |  |  | (786)
Foreign currency translation adjustment | 1 |  |  |  | 1
Issuances of common stock in connection with exercise of warrants | 17,767 | $ 13 | 17,754 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 12,842,857 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 99 |  | 99 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 6,327 |  |  |
Issuance of common stock under equity plans | 573 |  | 573 |  |
Issuance of common stock under equity plans (in shares) |  | 361,074 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 3,945 |  | 3,945 |  |
Balances at Jun. 30, 2023 | 298,427 | $ 522 | 1,799,841 | (1,500,991) | (945)
Balances (in shares) at Jun. 30, 2023 |  | 521,942,104 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (44,805) |  |  | (44,805) |
Other comprehensive income (loss) | (11) |  |  |  | (11)
Foreign currency translation adjustment | 6 |  |  |  | 6
Issuances of common stock in connection with exercise of warrants | 440 |  | 440 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 9,581 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 28,309 | $ 19 | 28,290 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 19,523,808 |  |  |
Issuance of common stock under equity plans | 1,044 | $ 1 | 1,043 |  |
Issuance of common stock under equity plans (in shares) |  | 1,004,173 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 7,204 |  | 7,204 |  |
Balances at Sep. 30, 2023 | 290,614 | $ 542 | 1,836,818 | (1,545,796) | (950)
Balances (in shares) at Sep. 30, 2023 |  | 542,479,666 |  |  |
Balances at Dec. 31, 2023 | 247,949 | $ 545 | 1,844,988 | (1,597,769) | 185
Balances (in shares) at Dec. 31, 2023 |  | 544,912,215 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (55,390) |  |  | (55,390) |
Other comprehensive income (loss) | (448) |  |  |  | (448)
Foreign currency translation adjustment | (10) |  |  |  | (10)
Issuances of common stock and pre-funded warrant to purchase common stock in public offering, net of issuance costs | 141,000 | $ 42 | 140,958 |  |
Issuances of common stock and pre-funded warrant to purchase common stock in public offering, net of issuance costs (in shares) |  | 41,999,998 |  |  |
Issuances of common stock in connection with exercise of warrants | 49 |  | 49 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 37,640 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 92 |  | 92 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 2,462 |  |  |
Issuance of common stock under equity plans | 6,749 | $ 4 | 6,745 |  |
Issuance of common stock under equity plans (in shares) |  | 4,211,493 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 4,877 |  | 4,877 |  |
Balances at Mar. 31, 2024 | 344,868 | $ 591 | 1,997,709 | (1,653,159) | (273)
Balances (in shares) at Mar. 31, 2024 |  | 591,163,808 |  |  |
Balances at Dec. 31, 2023 | 247,949 | $ 545 | 1,844,988 | (1,597,769) | 185
Balances (in shares) at Dec. 31, 2023 |  | 544,912,215 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Employee stock purchases | 366 | $ 366 |  |  |
Employee stock purchases (in shares) |  | 201,052 |  |  |
Balances at Jun. 30, 2024 | 306,695 | $ 601 | 2,027,173 | (1,720,542) | (537)
Balances (in shares) at Jun. 30, 2024 |  | 601,048,108 |  |  |
Balances at Dec. 31, 2023 | 247,949 | $ 545 | 1,844,988 | (1,597,769) | 185
Balances (in shares) at Dec. 31, 2023 |  | 544,912,215 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (149,220) |  |  |  |
Balances at Sep. 30, 2024 | 292,284 | $ 603 | 2,037,653 | (1,746,989) | 1,017
Balances (in shares) at Sep. 30, 2024 |  | 603,102,073 |  |  |
Balances at Mar. 31, 2024 | 344,868 | $ 591 | 1,997,709 | (1,653,159) | (273)
Balances (in shares) at Mar. 31, 2024 |  | 591,163,808 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (67,383) |  |  | (67,383) |
Other comprehensive income (loss) | (243) |  |  |  | (243)
Foreign currency translation adjustment | (21) |  |  |  | (21)
Offering expenses | (271) |  | (271) |  |
Issuances of common stock in connection with exercise of warrants | 365 |  | 365 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 281,211 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 16 | $ 1 | 15 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 1,916 |  |  |
Issuance of common stock under equity plans | 16,373 | $ 9 | 16,364 |  |
Issuance of common stock under equity plans (in shares) |  | 9,400,121 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 12,625 |  | 12,625 |  |
Balances at Jun. 30, 2024 | 306,695 | $ 601 | 2,027,173 | (1,720,542) | (537)
Balances (in shares) at Jun. 30, 2024 |  | 601,048,108 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net loss | (26,447) |  |  | (26,447) |
Other comprehensive income (loss) | 1,507 |  |  |  | 1,507
Foreign currency translation adjustment | 47 |  |  |  | 47
Issuances of common stock in connection with exercise of warrants | 4 |  | 4 |  |
Issuances of common stock in connection with exercise of warrants (in shares) |  | 3,080 |  |  |
Stock-based compensation related to issuance of common stock and options for services | 14 |  | 14 |  |
Stock-based compensation related to issuance of common stock and options for services (in shares) |  | 1,767 |  |  |
Issuance of common stock under equity plans | 3,574 | $ 2 | 3,572 |  |
Issuance of common stock under equity plans (in shares) |  | 2,049,118 |  |  |
Stock-based compensation for equity-based awards to employees and directors | 6,890 |  | 6,890 |  |
Balances at Sep. 30, 2024 | $ 292,284 | $ 603 | $ 2,037,653 | $ (1,746,989) | $ 1,017
Balances (in shares) at Sep. 30, 2024 |  | 603,102,073 |  |  |

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