Common Stock

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Common Stock

7. Common Stock

As of each of the balance sheet dates below, the Company had reserved shares of common stock for issuance in connection with the following:

	December 31,		December 31,
	2024		2023
Options outstanding under the 2014 Stock Plan		1,875,140		1,875,140
Options outstanding under the 2020 Equity Incentive Plan		7,786,735		5,669,961
Options outstanding under the 2022 Inducement Plan		1,691,182		1,125,641
Shares available for future grant under the 2020 Equity Incentive Plan and the 2022 Inducement Plan		2,056,300		2,497,813
Shares available for the 2020 Employee Stock Purchase Plan		1,122,615		684,497
Unvested performance-based restricted stock unit awards outstanding under the 2020 Equity Incentive Plan		—		403,000
Unvested restricted stock awards outstanding under the 2014 Stock Plan		—		80,703
Shares available for issuance related to pre-funded warrants		11,024,163		—
		25,556,135		12,336,755

Pre-Funded Warrants

In December 2024, the Company issued pre-funded warrants to purchase up to 7,604,163 shares of the Company's common stock in the 2024 Private Placement at $9.07998 per share of the common stock, less the $0.0001 per share exercise price of each warrant. Also, in December 2024, the Company issued pre-funded warrants to purchase up to 3,420,000 shares of the Company's common stock in exchange of 3,420,000 shares of the Company's common stock previously held by investors. The warrants were recorded as a component of stockholders’ equity within additional paid-in capital and have no expiration date.