Net Loss Per Share Attributable to Common Stockholders

12 Months Ended

Dec. 31, 2020

Net Loss Per Share Attributable to Common Stockholders

12. Net Loss Per Share Attributable to Common Stockholders

The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders (in thousands, except share and per share data):

	Year Ended December 31,
	2020			2019			2018
Numerator:
Net loss attributable to common stockholders	$	(34,495	)	$	(41,975	)	$	(34,346	)
Denominator:
Weighted-average shares outstanding		24,783,287			12,669,367			1,338,776
Less: weighted-average shares of restricted stock that are subject to repurchase		(61,512	)		(172,410	)		(382,524	)
Weighted-average shares used in computing net loss per share attributable to common stock, basic and diluted		24,721,775			12,496,957			956,252
Net loss per share attributable to common stockholders, basic and diluted	$	(1.40	)	$	(3.36	)	$	(35.92	)

The following outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented because including them would have been antidilutive:

	As of December 31,
	2020		2019		2018
Redeemable convertible preferred stock		—		—		13,139,794
Options to purchase common stock		2,591,456		1,962,332		1,598,864
Restricted stock		14,625		14,625		19,492
Restricted stock acquired upon early exercise of stock options		14,460		84,964		237,853
Total		2,620,541		2,061,921		14,996,003

As of December 31, 2020, the Company has contributions from plan participant of $0.3 million under the ESPP, which if converted, would be equivalent to 30,454 shares based on 85% of the stock price at the beginning of the offering period.