Total stock-based compensation expense recognized in the condensed consolidated statements of operations is included in the following categories (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Cost of goods sold	$	302	$	91	$	546	$	208
Cost of revenue – collaborations and services		985		979		1,836		1,874
Research and development		1,106		952		1,622		1,651
Selling, general and administrative		7,833		5,498		12,677		9,172
Total	$	10,226	$	7,520	$	16,681	$	12,905

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


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
RSUs and options	$	9,957	$	7,357	$	16,119	$	12,569
Employee stock purchase plan		269		163		562		336
Total	$	10,226	$	7,520	$	16,681	$	12,905

The following table summarizes information pertaining to RSUs:


	Number of Shares			Weighted Average Grant Date Fair Value per Share
Outstanding as of January 1, 2026		16,485,829		$	5.82
Granted		3,302,156			4.84
Vested		(990,798	)		4.01
Forfeited		(721,729	)		5.17
Outstanding as of June 30, 2026		18,075,458			5.76

As of June 30, 2026, there was $51.0 million of unrecognized stock-based compensation expense related to RSUs, Market RSUs and Performance RSUs, which is expected to be recognized over a weighted average period of approximately 1.9 years.


	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value ($000)
Outstanding as of January 1, 2026		5,370,220		$	1.66		2.36	$	21,522
Granted		7,778,380			2.44
Exercised		(332,261	)		1.66
Forfeited		(335,916	)		2.44
Expired		(156,948	)		3.65
Outstanding as of June 30, 2026		12,323,475		$	2.11		6.67	$	26,550
Exercisable as of June 30, 2026		4,876,011		$	1.59		1.99	$	12,995

As of June 30, 2026, there was $10.1 million of unrecognized stock-based compensation expense related to stock options, which is expected to be recognized over a weighted average period of approximately 3.7 years.

The Company provides all employees, including executive officers, the ability to purchase common stock at a discount under the ESPP. The ESPP is designed to comply with Section 423 of the Internal Revenue Code and provides all employees with the opportunity to purchase up to $25,000 worth of common stock (based on the undiscounted fair market value at the commencement of the offering period) each year at a purchase price that is the lower of 85% of the fair market value of the common stock on either the date of purchase or the commencement of the offering period. An employee may not purchase more than 5,000 shares of common stock on any purchase date. The executives’ rights under the ESPP are the same as those of all other employees.

There were approximately 1.5 million shares of common stock available for issuance under the ESPP as of June 30, 2026.