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Capital Structure
3 Months Ended
Mar. 31, 2023
Stockholders' Equity Note [Abstract]  
Capital Structure Capital Structure
The Company has two authorized classes of common stock, Class A and Class B. The rights of the holders of Class A and Class B common stock are identical, except with respect to voting and conversion. Each share of Class A common stock is entitled to one vote and shares of Class B common stock are non-voting. Each share of Class B common stock may be converted at any time to one share of Class A common stock at the option of its holder, subject to the ownership limitations provided for in the Company’s amended and restated certificate of incorporation.
The following shares of Class A common stock were reserved for future issuance:
March 31,
2023
December 31,
2022
Warrants to purchase Class A common stock2,775,978 2,775,978 
Options to purchase Class A common stock8,875,249 8,428,441 
Restricted stock units outstanding347,436 — 
Class A common stock available for future grants under the 2021 Equity Incentive Plan2,312,525 1,926,356 
Class A common stock available for future grants under the 2021 Employee Stock Purchase Plan894,903 598,777 
Total15,206,091 13,729,552