Stockholders' Equity

12 Months Ended

Dec. 31, 2020

Stockholders Equity Note [Abstract]

Stockholders' Equity

7. Stockholders’ Equity

The Company’s amended and restated certificate of incorporation filed on July 23, 2018 authorizes the issuance of a total of 220,000,000 shares of stock. Of these shares, 200,000,000 are designated as common stock and 20,000,000 are designated as preferred stock.

Common Stock

There were 53,080,538 shares of common stock issued and outstanding at December 31, 2020. Common shares reserved for future issuance upon the exercise, issuance or conversion of the respective equity instruments are as follows (in thousands):

	December 31,
	2020		2019
Exercise of common stock options outstanding		6,616		7,148
Shares reserved for issuance under equity incentive plans		5,271		3,762
Vesting of restricted stock units		1,161		542
Shares reserved for issuance under employee stock purchase plans		1,265		848
Total		14,313		12,300

Common stockholders are entitled to dividends if and when declared by the Board of Directors subject to the prior rights of preferred stockholders. As of December 31, 2020, no dividends on common stock had been declared by the Board of Directors.

Preferred Stock

There were no shares of preferred stock issued and outstanding at December 31, 2020.