Net Loss Per Share Attributable to Common Stockholders

3 Months Ended

12 Months Ended

Mar. 31, 2022

Dec. 31, 2021

Net Loss Per Share Attributable to Common Stockholders

12. Net Loss Per Share Attributable to Common Stockholders

The Company’s potentially dilutive securities include options to purchase common stock, unvested shares of restricted common stock, and redeemable convertible preferred stock. The Company’s potentially dilutive securities have been excluded from the computation of diluted net loss per share as the effect would be anti-dilutive. Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at period end, from the computation of diluted net loss per share attributable to common stockholders for the period indicated because including them would have had an anti-dilutive effect:


	March 31,
	2022		2021
Redeemable convertible preferred stock		—		22,359,669
Options to purchase common stock		8,113,589		2,871,594
Unvested shares of restricted common stock from early exercises		17,820		34,647
Restricted stock units		702,663		—
Restricted stock units—executive officer		952,804		—

Total		9,786,876		25,265,910

14. Net Loss Per Share Attributable to Common Stockholders

The Company’s potential dilutive securities, which include redeemable convertible preferred stock, options to purchase common stock, and unvested shares of restricted common stock, have been excluded from the computation of diluted net loss per share as the effect would be anti-dilutive. Therefore, the weighted average number of common shares outstanding used to calculate both basic and diluted net loss per share attributable to common stockholders is the same. The Company excluded the following potential common shares, presented based on amounts outstanding at period end, from the computation of diluted net loss per share attributable to common stockholders for the period indicated because including them would have had an anti-dilutive effect:


	December 31,
	2021		2020
Redeemable convertible preferred stock		24,785,564		14,388,857
Options to purchase common stock		5,598,073		1,910,310
Unvested shares of restricted common stock from early exercises		757		41,834
Restricted stock units		952,804		—

Total		31,337,198		16,341,001

Shares of redeemable convertible preferred stock also participated in dividends with shares of common stock (if and when declared) and therefore were deemed participating securities. The holders of redeemable convertible preferred stock did not contractually share in losses and therefore no additional net loss per share has been disclosed under the

two-class

method.