Stock Award Plans (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

Stock Based Award Plans

The following table summarizes information about the Company’s stock-based award plans as of December 31, 2024:

	Outstanding Options		Outstanding Restricted Stock Units		Shares Available for Future Issuance
2013 Equity Incentive Plan		2,553,415		—		—
2018 Equity Incentive Plan		4,718,551		14,128,954		21,533,033
Total		7,271,966		14,128,954		21,533,033

Stock Based Compensation Expense Recognized in Consolidated Statements of Operations by Category

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

	Year Ended December 31,
	2024		2023		2022
Cost of goods sold	$	357	$	1,589	$	329
Cost of revenue – collaborations and services		3,701		897		1,425
Research and development		2,238		1,442		1,044
Selling, general and administrative		15,062		13,721		10,649
Total	$	21,358	$	17,649	$	13,447

Summary of Stock Options Outstanding

The following table summarizes information relating to stock options:

	Number of Shares			Weighted Average Exercise Price per Share		Weighted Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value ($000)
Outstanding as of January 1, 2024		8,400,611		$	2.39		4.07	$	15,153
Granted		—			—
Exercised		(946,464	)		1.70
Forfeited		(55,500	)		2.74
Expired		(126,681	)		22.82
Outstanding as of December 31, 2024		7,271,966		$	2.12		3.12	$	32,438
Exercisable as of December 31, 2024		6,868,873		$	2.11		3.18	$	30,770

Summary of Restricted Stock Unit Activity

The following table summarizes information relating to restricted stock units:

	Number of Shares			Weighted Average Grant Date Fair Value per Share
Outstanding as of January 1, 2024		12,363,934		$	4.61
Granted		7,041,502			6.79
Vested		(4,379,263	)		5.24
Forfeited		(897,219	)		4.70
Outstanding as of December 31, 2024		14,128,954			5.49