Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands |
Total |
Common Stock |
Preferred Stock |
Additional Paid-In Capital |
Accumulated Deficit |
Accumulated Other Comprehensive Gain (Loss) |
Treasury Stock |
Common stock beginning balance (in shares) at Dec. 31, 2022 |
|
189,214,000
|
|
|
|
|
|
Beginning balance at Dec. 31, 2022 |
$ 117,124
|
$ 189
|
$ 0
|
$ 1,709,144
|
$ (1,589,720)
|
$ (428)
|
$ (2,061)
|
Preferred stock beginning balance (in shares) at Dec. 31, 2022 |
|
|
0
|
|
|
|
|
Stock-based compensation |
3,415
|
|
|
3,415
|
|
|
|
Issuance of common stock under Equity Incentive Plans (in shares) |
|
1,216,000
|
|
|
|
|
|
Issuance of common stock under Equity Incentive Plans |
0
|
$ 1
|
|
(1)
|
|
|
|
Repurchase of common stock |
(824)
|
|
|
|
|
|
(824)
|
Net loss |
(31,934)
|
|
|
|
(31,934)
|
|
|
Unrealized gain (loss) on investments |
265
|
|
|
|
|
265
|
|
Common stock ending balance (in shares) at Mar. 31, 2023 |
|
190,430,000
|
|
|
|
|
|
Ending balance at Mar. 31, 2023 |
88,046
|
$ 190
|
$ 0
|
1,712,558
|
(1,621,654)
|
(163)
|
(2,885)
|
Preferred stock ending balance (in shares) at Mar. 31, 2023 |
|
|
0
|
|
|
|
|
Common stock beginning balance (in shares) at Dec. 31, 2022 |
|
189,214,000
|
|
|
|
|
|
Beginning balance at Dec. 31, 2022 |
117,124
|
$ 189
|
$ 0
|
1,709,144
|
(1,589,720)
|
(428)
|
(2,061)
|
Preferred stock beginning balance (in shares) at Dec. 31, 2022 |
|
|
0
|
|
|
|
|
Issuance of equity-classified warrants |
307
|
|
|
|
|
|
|
Net loss |
(127,363)
|
|
|
|
|
|
|
Unrealized gain (loss) on investments |
315
|
|
|
|
|
|
|
Common stock ending balance (in shares) at Sep. 30, 2023 |
|
245,793,000
|
|
|
|
|
|
Ending balance at Sep. 30, 2023 |
139,510
|
$ 245
|
$ 0
|
1,859,346
|
(1,717,083)
|
(113)
|
(2,885)
|
Preferred stock ending balance (in shares) at Sep. 30, 2023 |
|
|
0
|
|
|
|
|
Common stock beginning balance (in shares) at Mar. 31, 2023 |
|
190,430,000
|
|
|
|
|
|
Beginning balance at Mar. 31, 2023 |
88,046
|
$ 190
|
$ 0
|
1,712,558
|
(1,621,654)
|
(163)
|
(2,885)
|
Preferred stock beginning balance (in shares) at Mar. 31, 2023 |
|
|
0
|
|
|
|
|
Stock-based compensation |
3,815
|
|
|
3,815
|
|
|
|
Issuance of equity-classified warrants |
307
|
|
|
307
|
|
|
|
Stock Issued During Period, Shares, New Issues |
|
55,288,000
|
|
|
|
|
|
Stock Issued During Period, Value, New Issues |
$ 139,034
|
$ 55
|
|
138,979
|
|
|
|
Issuance of common stock under Equity Incentive Plans (in shares) |
75,000
|
|
|
|
|
|
|
Issuance of common stock under Equity Incentive Plans |
$ 0
|
|
|
|
|
|
|
Net loss |
(44,904)
|
|
|
|
(44,904)
|
|
|
Unrealized gain (loss) on investments |
63
|
|
|
|
|
63
|
|
Common stock ending balance (in shares) at Jun. 30, 2023 |
|
245,793,000
|
|
|
|
|
|
Ending balance at Jun. 30, 2023 |
186,361
|
$ 245
|
$ 0
|
1,855,659
|
(1,666,558)
|
(100)
|
(2,885)
|
Preferred stock ending balance (in shares) at Jun. 30, 2023 |
|
|
0
|
|
|
|
|
Stock-based compensation |
3,898
|
|
|
3,898
|
|
|
|
Net loss |
(50,525)
|
|
|
|
(50,525)
|
|
|
Unrealized gain (loss) on investments |
(13)
|
|
|
|
|
(13)
|
|
Other |
(211)
|
|
|
(211)
|
|
|
|
Common stock ending balance (in shares) at Sep. 30, 2023 |
|
245,793,000
|
|
|
|
|
|
Ending balance at Sep. 30, 2023 |
$ 139,510
|
$ 245
|
$ 0
|
1,859,346
|
(1,717,083)
|
(113)
|
(2,885)
|
Preferred stock ending balance (in shares) at Sep. 30, 2023 |
|
|
0
|
|
|
|
|
Common stock beginning balance (in shares) at Dec. 31, 2023 |
245,792,668
|
245,793,000
|
|
|
|
|
|
Beginning balance at Dec. 31, 2023 |
$ 93,110
|
$ 245
|
$ 0
|
1,862,558
|
(1,766,839)
|
31
|
(2,885)
|
Preferred stock beginning balance (in shares) at Dec. 31, 2023 |
0
|
|
0
|
|
|
|
|
Stock-based compensation |
$ 4,302
|
|
|
4,302
|
|
|
|
Stock Issued During Period, Shares, New Issues |
|
|
2,304,000
|
|
|
|
|
Stock Issued During Period, Value, New Issues |
241,575
|
|
$ 23
|
241,552
|
|
|
|
Issuance of common stock under Equity Incentive Plans (in shares) |
|
1,972,000
|
|
|
|
|
|
Issuance of common stock under Equity Incentive Plans |
88
|
$ 3
|
|
85
|
|
|
|
Repurchase of common stock |
(1,730)
|
|
|
|
|
|
(1,730)
|
Net loss |
(48,397)
|
|
|
|
(48,397)
|
|
|
Unrealized gain (loss) on investments |
(81)
|
|
|
|
|
(81)
|
|
Common stock ending balance (in shares) at Mar. 31, 2024 |
|
247,765,000
|
|
|
|
|
|
Ending balance at Mar. 31, 2024 |
$ 288,867
|
$ 248
|
$ 23
|
2,108,497
|
(1,815,236)
|
(50)
|
(4,615)
|
Preferred stock ending balance (in shares) at Mar. 31, 2024 |
|
|
2,304,000
|
|
|
|
|
Common stock beginning balance (in shares) at Dec. 31, 2023 |
245,792,668
|
245,793,000
|
|
|
|
|
|
Beginning balance at Dec. 31, 2023 |
$ 93,110
|
$ 245
|
$ 0
|
1,862,558
|
(1,766,839)
|
31
|
(2,885)
|
Preferred stock beginning balance (in shares) at Dec. 31, 2023 |
0
|
|
0
|
|
|
|
|
Issuance of equity-classified warrants |
$ 0
|
|
|
|
|
|
|
Net loss |
(166,637)
|
|
|
|
|
|
|
Unrealized gain (loss) on investments |
$ 318
|
|
|
|
|
|
|
Common stock ending balance (in shares) at Sep. 30, 2024 |
363,020,303
|
363,020,000
|
|
|
|
|
|
Ending balance at Sep. 30, 2024 |
$ 178,512
|
$ 363
|
$ 0
|
2,115,891
|
(1,933,476)
|
349
|
(4,615)
|
Preferred stock ending balance (in shares) at Sep. 30, 2024 |
2,304,147
|
|
0
|
|
|
|
|
Common stock beginning balance (in shares) at Mar. 31, 2024 |
|
247,765,000
|
|
|
|
|
|
Beginning balance at Mar. 31, 2024 |
$ 288,867
|
$ 248
|
$ 23
|
2,108,497
|
(1,815,236)
|
(50)
|
(4,615)
|
Preferred stock beginning balance (in shares) at Mar. 31, 2024 |
|
|
2,304,000
|
|
|
|
|
Stock-based compensation |
4,859
|
|
|
4,859
|
|
|
|
Stock Issued During Period, Value, New Issues |
(175)
|
|
|
(175)
|
|
|
|
Issuance of common stock under Equity Incentive Plans (in shares) |
|
48,000
|
|
|
|
|
|
Issuance of common stock under Equity Incentive Plans |
1
|
|
|
1
|
|
|
|
Conversion of preferred stock to common stock (in shares) |
|
115,207,000
|
(2,304,000)
|
|
|
|
|
Conversion of preferred stock to common stock |
0
|
$ 115
|
$ (23)
|
(92)
|
|
|
|
Net loss |
(53,429)
|
|
|
|
(53,429)
|
|
|
Unrealized gain (loss) on investments |
(143)
|
|
|
|
|
(143)
|
|
Common stock ending balance (in shares) at Jun. 30, 2024 |
|
363,020,000
|
|
|
|
|
|
Ending balance at Jun. 30, 2024 |
239,980
|
$ 363
|
$ 0
|
2,113,090
|
(1,868,665)
|
(193)
|
(4,615)
|
Preferred stock ending balance (in shares) at Jun. 30, 2024 |
|
|
0
|
|
|
|
|
Stock-based compensation |
2,801
|
|
|
2,801
|
|
|
|
Net loss |
(64,811)
|
|
|
|
(64,811)
|
|
|
Unrealized gain (loss) on investments |
$ 542
|
|
|
|
|
542
|
|
Common stock ending balance (in shares) at Sep. 30, 2024 |
363,020,303
|
363,020,000
|
|
|
|
|
|
Ending balance at Sep. 30, 2024 |
$ 178,512
|
$ 363
|
$ 0
|
$ 2,115,891
|
$ (1,933,476)
|
$ 349
|
$ (4,615)
|
Preferred stock ending balance (in shares) at Sep. 30, 2024 |
2,304,147
|
|
0
|
|
|
|
|