Net loss per share (Tables)

3 Months Ended

Mar. 31, 2022

Earnings Per Share [Abstract]

Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share

The following common stock equivalents were excluded from the calculation of diluted net loss per share for the periods indicated because including them would have had an anti-dilutive effect (in thousands):

	For the three months ended March 31,
	2022	2021
Outstanding stock options (1)	5,645	6,458
Restricted stock units (1)	4,053	2,073
ESPP shares and other	264	884
	9,962	9,415

(1) Outstanding stock options and restricted stock units include awards outstanding to employees of 2seventy bio for shares of the Company's common stock.