Preferred Stock and Common Stock

6 Months Ended

Jun. 30, 2020

Temporary Equity Disclosure [Abstract]

Preferred Stock and Common Stock

8. Preferred Stock and Common Stock

As of June 30, 2020, the Company had 10,000,000 shares of preferred stock authorized and none issued and outstanding.

Reserve for future issuance

The Company has reserved the following number of shares of common stock for future issuance upon the exercise of options, vesting of restricted stock units or grant of equity awards:

	June 30, 2020		December 31, 2019
Options issued and outstanding		2,140,012		2,562,800
Unvested restricted stock units		661,778		828,935
Options available for future grants		2,260,656		215,043
Shares available for issuance under the 2018 ESPP		920,030		555,583
Total		5,982,476		4,162,361