Total stock-based compensation expense is recorded in the condensed consolidated statements of operations as follows (in thousands):


	Three Months Ended March 31,
	2026		2025
Cost of revenue	$	66	$	128
Sales and marketing	1,414		2,429
Research and development	3,604		7,448
General and administrative	3,286		4,622
Total stock-based compensation	$	8,370	$	14,627

Under the Company’s 2021 Equity Incentive Plan, as of March 31, 2026, 49.9 million shares of Class A common stock were authorized, of which 29.9 million shares of Class A common stock were available for future issuance. The number of shares reserved for issuance was increased in January 2026 pursuant to the evergreen provisions set forth in the 2021 Equity Incentive Plan.

For all restricted stock units (“RSUs”), the Company recorded stock-based compensation expense of $8.6 million and $14.8 million during the three months ended March 31, 2026 and 2025, respectively.

A summary of the Company’s RSU activity for the three months ended March 31, 2026 is as follows (in thousands, except weighted average information):


	Number of Shares	Weighted Average Grant Date Fair Value Per Share
Unvested at December 31, 2025	6,557	$	9.23
Granted	2,990	1.58
Vested	(842)	9.93
Forfeited/Canceled	(473)	9.85
Unvested at March 31, 2026	8,232	$	6.35

As of March 31, 2026, total unrecognized stock-based compensation expense for unvested RSUs was $49.4 million, which is expected to be recognized over a weighted average period of 1.2 years.