The following is a summary of RSU activity for the six months ended June 30, 2026:


	Number Outstanding			Weighted Average Fair Value
Unvested as of January 1, 2026		791,654		$	4.26
Granted		5,000			4.74
Vested		(238,558	)		4.57
Forfeited		(3,750	)		3.51
Unvested as of June 30, 2026		554,346		$	4.14
RSUs vested but not released		185,827		$	3.74

The fair value of the Company’s RSUs is calculated based upon the fair market value of the Company’s common stock at the date of grant. As of June 30, 2026, there was $1.4 million of unrecognized compensation expense related to unvested RSUs granted, which is expected to be recognized over a weighted average period of 1.7 years. No tax benefit was realized from RSUs for the six months ended June 30, 2026.

The Company grants PSUs to certain key employees that are subject to the attainment of performance goals established by the Company’s Compensation Committee, the periods during which performance is to be measured, and other limitations and conditions. Performance goals are based on pre-established objectives that specify the manner of determining the number of PSUs that will vest if performance goals are attained. If an employee terminates employment, the non-vested portion of the PSUs will not vest and all rights to the non-vested portion will terminate.

The following is a summary of PSU activity for the six months ended June 30, 2026:


	Number Outstanding			Weighted Average Fair Value
Unvested as of January 1, 2026		300,000		$	4.03
Granted		125,000			3.17
Vested		(200,000	)		4.01
Forfeited		—			—
Unvested as of June 30, 2026		225,000		$	3.57

As of June 30, 2026, there was $605,000 of unrecognized compensation expense related to unvested PSUs, which is expected to be recognized or forfeited by the fourth quarter of 2026. No tax benefit was realized from PSUs for the six months ended June 30, 2026.

The following table summarizes stock-based compensation expense related to stock options, RSUs and PSUs included in the condensed consolidated statements of comprehensive loss for the three and six months ended June 30, 2026 and 2025 (in thousands):


	Three Months Ended June 30,				Six Months Ended June 30,
	2026		2025		2026		2025
Cost of revenue	$	7	$	5	$	13	$	10
Research and development		41		32		83		52
Selling and marketing		118		77		205		136
General and administrative		558		793		1,043		1,505
Total	$	724	$	907	$	1,344	$	1,703

During the six months ended June 30, 2026 and 2025, the Company repurchased 129,609 and 105,862 shares, respectively, of common stock surrendered to the Company to satisfy tax withholding obligations in connection with the vesting of RSUs and PSUs issued to employees.