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Stockholders' Equity
 3 Months Ended
Mar. 31, 2023
Equity [Abstract]  
Stockholders' Equity

7. Stockholders' Equity

Shelf Registration Statement and "At-the-Market" Offering Program

On November 1, 2022, the Company filed a registration statement on Form S-3 with the SEC for the issuance of common stock, preferred stock, warrants, debt securities, rights and units up to an aggregate of $250.0 million. On November 14, 2022, the registration statement was declared effective by the SEC. The registration statement includes an at-the-market ("ATM") offering program for the sale of up to $125.0 million of shares of the Company's common stock.

See Note 14, Subsequent Events for further discussion of the status of the Company’s ATM offering program.

Preferred Stock

There were no issued and outstanding shares of preferred stock as of March 31, 2023 and December 31, 2022.

Common Stock

Voting, dividend and liquidation rights of the holders of the common stock are subject to and qualified by the rights, powers and preferences of the holders of the preferred stock.

Voting—Each holder of outstanding shares of common stock shall be entitled to one vote in respect of each share.

Reserved Shares— The Company reserved the following shares of common stock for issuance:

 

 

March 31, 2023

 

 

December 31, 2022

 

Stock options outstanding

 

 

5,706,777

 

 

 

5,720,415

 

Unvested restricted stock awards and units

 

 

5,747,172

 

 

 

3,015,387

 

Stock options available for issuance

 

 

600,127

 

 

 

1,697,166

 

Employee stock purchase plan

 

 

1,103,624

 

 

 

752,524

 

Total

 

 

13,157,700

 

 

 

11,185,492