Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2020

Summary of Significant Accounting Policies

Schedule of antidilutive securities excluded from computation of earnings per share

	March 31,
	2020	2019
Series A‑1 convertible preferred stock	—	14,216,333
Future tranche right	—	5,009,808
Stock options (including shares subject to repurchase)	6,359,947	736,962
Stock options vested and exercised, but subject to settlement of nonrecourse promissory notes	—	258,336
	6,359,947	20,221,439