Stockholders' equity (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Common Stock Reserved for Future Issuance

The Company has reserved for future issuance the following number of shares of common stock (in thousands):

	As of December 31,
	2023	2022
Options to purchase common stock (1)	3,678	2,562
Restricted stock units (1)	2,239	1,314
2021 Stock Option and Incentive Plan	871	1,621
2021 Employee Stock Purchase Plan	552	434
Pre-funded warrants to purchase common stock	758	758
	8,098	6,689

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