Net loss per share (Tables)

12 Months Ended

Dec. 31, 2023

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):

	Year ended December 31,
	2023	2022
Outstanding stock options (1)	5,860	4,429
Restricted stock units (1)	4,239	2,524
Warrants	12,450	—
ESPP shares and other	90	63
	22,639	7,016

(1) Outstanding stock options and restricted stock units include awards outstanding to employees of 2seventy bio.