The following table sets forth the computation of the basic and diluted net loss per share attributable to common shareholders for the three months ended March 31, 2021 and 2020 (in thousands, except share and per share amounts):

	Three Months Ended March 31,
	2021			2020
Net loss	$	(40,642	)	$	(31,403	)
Weighted-average shares used in computing net loss per share		138,967,754			126,058,389
Net loss per share attributable to common shareholders, basic and diluted	$	(0.29	)	$	(0.25	)

Since we were in a loss position for all periods presented, basic net loss per share attributable to common shareholders is the same as diluted net loss per share attributable to common shareholders, as the inclusion of all potential shares of common stock outstanding would have been anti-dilutive. The following weighted-average common stock equivalents were excluded from the calculation of diluted net loss per share attributable to common shareholders for the three months ended March 31, 2021 and 2020, as they had an anti-dilutive effect:

	Three Months Ended March 31,
	2021		2020
Stock options issued and outstanding		13,516,949		16,823,569
Nonvested restricted stock units		238,583		3,618
Common stock warrant		34,757		56,875
Total		13,790,289		16,884,062