In connection with the closing of the Company’s initial public offering, the board of directors and stockholders approved the 2018 Omnibus Incentive Plan, which provides for the reservation of 5,001,000 shares of common stock for equity awards. On June 16, 2020, the Company’s stockholders approved the 2020 Equity Incentive Plan (“2020 Plan”) which consists of (i) 3,000,000 shares of common stock and (ii) additional shares of common stock (up to 4,879,025) as is equal to (i) the number of shares reserved under the Company’s 2018 Omnibus Incentive Plan (“2018 Plan”) that remain available for grant under the 2018 Plan as of immediately prior to the date the 2020 Plan was approved by the Company’s stockholders and (ii) the number of shares subject to awards granted under the 2018 Plan which awards expire, terminate or are otherwise surrendered, cancelled, forfeited or repurchased by the Company at their original issuance price pursuant to a contractual repurchase right. In June 2021, the Company’s stockholders approved an amendment to the 2020 Plan to reserve an additional 7,000,000 shares of common stock for issuance under the plan. In June 2021, the Company’s stockholders also approved the 2021 Employee Stock Purchase Plan (“ESPP”), which provides for 1,102,885 shares to be available for purchase by eligible employees according to its terms.

During the three and six months ended June 30, 2021, the Company granted options for the purchase of 604,400 and 3,001,895, respectively, shares of common stock. During the three and six months ended June 30, 2021, the Company granted no restricted stock units.

The Company recorded equity-based compensation expense related to all of its share-based awards to employees and non-employees in the following captions within its condensed consolidated statements of operations:

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Research and development	$	1,992	$	1,616	$	3,482	$	2,855
General and administrative		1,643		1,627		3,060		2,641
Restructuring		—		—		—		851
Total	$	3,635	$	3,243	$	6,542	$	6,347