Convertible preferred stock and stockholders’ equity (Tables)

12 Months Ended

Dec. 31, 2019

Convertible preferred stock and stockholders’ equity

Schedule of the Company's common stock reserved for issuance, on an as if converted basis,

As of December 31, 2019 and 2018, the Company had reserved common stock for issuance as follows (in thousands):

	As of December 31,
	2019	2018
Stock options issued and outstanding	4,798	3,959
Unvested restricted stock	1,032	195
	5,830	4,154