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Stockholders' Equity (Tables)

6 Months Ended

Jun. 27, 2025

Stockholders' Equity Note [Abstract]

Schedule of Compensation Cost

The cost that has been charged against income for stock-based compensation is set forth below (in thousands):

		Three Months Ended								Six Months Ended
		June 27, 2025				June 28, 2024				June 27, 2025				June 28, 2024
Employee stock options		$	1,640			$	3,518			$	4,045			$	6,691
Restricted stock			145				170				302				198
RSUs			3,345				3,053				6,308				5,343
PSUs			2,211				2,119				2,607				2,804
Nonemployee stock options			208				151				302				292
Nonemployee RSUs			253				31				253				53
Total stock-based compensation expense		$	7,802			$	9,042			$	13,817			$	15,381

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

The Company recorded stock-based compensation costs in the following categories (in thousands):

		Three Months Ended								Six Months Ended
		June 27, 2025				June 28, 2024				June 27, 2025				June 28, 2024
Cost of sales		$	90			$	363			$	380			$	661
General and administrative			4,643				4,981				7,326				8,056
Selling and marketing			1,309				1,319				2,586				2,529
Research and development			1,760				2,379				3,525				4,135
Total stock-based compensation expense, net			7,802				9,042				13,817				15,381
Amounts capitalized as part of inventory			192				440				504				777
Total stock-based compensation expense, gross		$	7,994			$	9,482			$	14,321			$	16,158

Schedule of Unrecognized Compensation Cost, Non-Vested Stock-Based Compensation Arrangements

As of June 27, 2025, total unrecognized compensation cost related to non-vested stock-based compensation arrangements were as follows (in thousands):

		June 27, 2025
Stock options		$	9,026
RSUs and PSUs			40,468
Total unrecognized stock-based compensation cost		$	49,494

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The risk-free rate is based on the U.S. Treasury yield curve corresponding to the expected term at the time of the grant.

		Three Months Ended								Six Months Ended
		June 27, 2025				June 28, 2024				June 27, 2025				June 28, 2024
Expected dividend yield			0	%			0	%			0	%			0	%
Expected volatility			60	%			59	%			60	%			59	%
Risk-free interest rate			4.03	%			4.45	%			4.09	%			4.19	%
Expected term (in years)			5.05				5.29				5.05				5.29

Schedule of Share-based Compensation, Stock Options, Activity

A summary of stock option activity under the Equity Plan for the six months ended June 27, 2025 is presented below:

		Stock Options (in 000’s)				Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Term (years)				Aggregate Intrinsic Value (in 000’s)
Outstanding at December 27, 2024			2,808			$	45.72
Granted			112				17.53
Exercised			(53	)			7.23
Forfeited or expired			(433	)			47.71
Outstanding at June 27, 2025			2,434			$	44.87				5.04			$	1,238
Exercisable at June 27, 2025			1,928			$	47.18				4.07			$	1,200

Schedule of Share-based Compensation, Restricted Stock, RSU and PSU Activity

A summary of restricted stock, RSU and PSU activity under the Equity Plan for the six months ended June 27, 2025 is presented below (shares in thousands):

		Restricted Stock				RSUs				PSUs
Unvested at December 27, 2024			16				695				406
Granted			—				1,234				849
Vested			(16	)			(248	)			(20	)
Forfeited or expired			—				(151	)			(417	)
Unvested at June 27, 2025			—				1,530				818

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