Stock-based compensation expense, net of forfeitures and adjustments of $0.2 million and $0.1 million for the three months ended June 30, 2026 and 2025, respectively, and $1.0 million and $0.2 million for the six months ended June 30, 2026 and 2025, respectively, was as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2026		2025		2026		2025
Cost of sales	$	376	$	354	$	688	$	644
Sales and marketing	335		354		644		680
General and administrative	4,873		6,119		10,478		11,783
Research and development	1,175		1,060		2,152		1,961
Total	$	6,759	$	7,887	$	13,962	$	15,068

At June 30, 2026, the aggregate unrecognized compensation expense related to unvested equity awards was $59.1 million, which is expected to be recognized as compensation expense in fiscal years 2026 through 2029.

A summary of stock option activity for the six months ended June 30, 2026 is below:


(in thousands, except for weighted average exercise price)	Options outstanding	Weighted average exercise price
Outstanding at January 1, 2026	812	$	17.54

Exercised	(27)	$	6.14
Canceled/forfeited	(2)	$	20.45
Outstanding at June 30, 2026	783	$	17.94

A summary of unvested restricted stock units activity for the six months ended June 30, 2026 is below:


(in thousands, except for weighted average award value)	Restricted Stock Unit Awards	Weighted average grant-date fair value
Outstanding at January 1, 2026	1,086	$	59.59
Granted	1,630	$	17.45
Vested	(435)	$	48.71
Canceled/forfeited	(60)	$	54.66
Outstanding at June 30, 2026	2,221	$	30.93

A total of 330,000 shares of Company common stock were made available for purchase under the Company's 2021 Employee Stock Purchase Plan ("ESPP"), subject to adjustment as provided for in the ESPP. As of June 30, 2026, 103,725 shares of common stock were purchased under the ESPP since inception, including 40,855 shares purchased under the ESPP during the six months ended June 30, 2026.