Stockholders’ Equity and Equity Incentive Plans (Tables)

6 Months Ended

Jul. 31, 2022

A summary of stock option activity under our equity incentive plan and related information is as follows:


	Stock Options
	Outstanding Stock Options	Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (Years)	Aggregate Intrinsic Value

	(in thousands, except share, life, and per share data)
Balance as of January 31, 2022	6,195,205	$	8.08	6.0	$	905,744
Exercised	(858,055)	$	5.90		$	91,811
Canceled/forfeited/expired	(83,072)	$	21.48
Outstanding as of July 31, 2022	5,254,078	$	8.22	5.5	$	502,488
Vested and expected to vest as of July 31, 2022	5,254,078	$	8.22	5.5	$	502,488
Exercisable as of July 31, 2022	4,869,691	$	6.81	5.4	$	472,618

A summary of restricted stock unit (“RSU”) activity under our equity incentive plan and related information is as follows:


	RSUs
	Unvested RSUs	Weighted- Average Grant Date Fair Value Per Share
Unvested as of January 31, 2022	5,546,366	$	232.58
Granted	10,737,425	$	110.99

Vested	(1,906,359)	$	189.17
Canceled/forfeited	(826,734)	$	173.54
Unvested as of July 31, 2022	13,550,698	$	145.93

The stock-based compensation expense by line item in the accompanying condensed consolidated statements of operations is summarized as follows:


	Three Months Ended July 31,				Six Months Ended July 31,
	2022		2021		2022		2021

	(in thousands)
Cost of revenue	$	37,177	$	14,778	$	68,327	$	28,844
Research and development	69,701		22,917		125,452		43,736
Sales and marketing	110,161		50,856		203,956		102,668
General and administrative	38,476		13,591		67,143		25,863
Total stock-based compensation expense	$	255,515	$	102,142	464,878		201,111
Benefit from income taxes	(54,117)		—		(97,032)		—
Total stock-based compensation expense recorded to net income	$	201,398	$	102,142	$	367,846	$	201,111