Stockholders' Equity (Tables)
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6 Months Ended |
Jun. 30, 2025 |
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| Stockholders Equity Note [Abstract] |
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| Schedule of Common Stock Reserved for Future Issuance |
The Company had reserved shares of common stock for future issuance as shown in the table below:
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June 30,
2025 |
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December 31,
2024 |
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Shares of common stock reserved for future issuance upon exercise of outstanding warrants and pre-funded warrants |
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25,063,494 |
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32,915,346 |
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Shares of common stock reserved for future issuance under the 2019 Stock Incentive Plan, as amended |
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9,960,920 |
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7,555,310 |
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Shares of common stock reserved for future issuance under the 2019 Employee Stock Purchase Plan |
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1,116,075 |
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1,131,973 |
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Shares of common stock reserved for future issuance under the 2012 Stock Incentive Plan |
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278,418 |
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288,944 |
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36,418,907 |
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41,891,573 |
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| Warrant Activity Including Activity Related To Pre-funded Warrants |
Warrants Warrant activity, including activity related to pre-funded warrants, is shown in the table below:
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Number of
Pre-funded Warrant
Shares |
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Number of
Common Stock Warrant
Shares |
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Total Number of
Warrant
Shares |
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Weighted
Average
Exercise
Price |
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Outstanding as of December 31, 2024 |
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23,211,642 |
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9,703,704 |
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32,915,346 |
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$ |
0.40 |
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Exercised |
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— |
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(7,851,852 |
) |
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(7,851,852 |
) |
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$ |
1.37 |
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Outstanding as of June 30, 2025 |
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23,211,642 |
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1,851,852 |
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25,063,494 |
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$ |
0.10 |
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| Schedule of Share-based Compensation, Stock Options, Activity |
A summary of the Company’s combined stock option activity for the 2019 Plan and the 2012 Plan is as follows:
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Number of
Option
Shares |
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Weighted
Average
Exercise
Price |
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Outstanding as of December 31, 2024 |
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7,844,254 |
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$ |
3.08 |
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Granted |
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2,760,150 |
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$ |
4.43 |
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Exercised |
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(295,372 |
) |
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$ |
2.48 |
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Forfeited |
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(55,840 |
) |
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$ |
2.38 |
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Expired |
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(13,854 |
) |
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$ |
2.67 |
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Outstanding as of June 30, 2025 |
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10,239,338 |
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$ |
3.46 |
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Options exercisable as of June 30, 2025 |
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5,105,989 |
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$ |
3.35 |
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Options unvested as of June 30, 2025 |
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5,133,349 |
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$ |
3.57 |
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| Schedule of Stock-based Compensation Expenses Recognized |
The following table summarizes the classifications of stock-based compensation expenses for the 2012 Plan, the 2019 Plan and the 2019 ESPP recognized in the Condensed Consolidated Statements of Comprehensive Loss:
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Three Months Ended
June 30, |
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Six Months Ended
June 30, |
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2025 |
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2024 |
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2025 |
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2024 |
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General and administrative expense |
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$ |
787 |
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$ |
645 |
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$ |
1,471 |
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$ |
1,070 |
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Research and development expense |
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597 |
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482 |
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1,121 |
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780 |
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Total stock-based compensation expenses |
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$ |
1,384 |
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$ |
1,127 |
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$ |
2,592 |
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$ |
1,850 |
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