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Stockholders' Equity (Tables)

9 Months Ended

Sep. 26, 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								Nine Months Ended
		September 26, 2025				September 27, 2024				September 26, 2025				September 27, 2024
Employee stock options		$	1,566			$	3,592			$	5,611			$	10,283
Restricted stock			—				156				302				354
RSUs			3,382				3,150				9,690				8,493
PSUs			2,478				115				5,085				2,919
Nonemployee stock options			124				137				426				429
Nonemployee RSUs			608				10				861				63
Total stock-based compensation expense		$	8,158			$	7,160			$	21,975			$	22,541

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								Nine Months Ended
		September 26, 2025				September 27, 2024				September 26, 2025				September 27, 2024
Cost of sales		$	48			$	303			$	428			$	964
General and administrative			5,026				3,621				12,352				11,677
Selling and marketing			1,492				1,213				4,078				3,742
Research and development			1,592				2,023				5,117				6,158
Total stock-based compensation expense, net			8,158				7,160				21,975				22,541
Amounts capitalized as part of inventory			64				361				568				1,138
Total stock-based compensation expense, gross		$	8,222			$	7,521			$	22,543			$	23,679

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

As of September 26, 2025, total unrecognized compensation cost related to non-vested stock-based compensation arrangements were as follows (in thousands):

		September 26, 2025
Stock options		$	7,016
RSUs and PSUs			34,050
Total unrecognized stock-based compensation cost		$	41,066

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								Nine Months Ended
		September 26, 2025				September 27, 2024				September 26, 2025				September 27, 2024
Expected dividend yield			0	%			0	%			0	%			0	%
Expected volatility			60	%			59	%			60	%			59	%
Risk-free interest rate			3.83	%			3.70	%			4.07	%			4.17	%
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 nine months ended September 26, 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			121				18.22
Exercised			(210	)			15.99
Forfeited or expired			(870	)			50.16
Outstanding at September 26, 2025			1,849			$	45.15				6.02			$	3,284
Exercisable at September 26, 2025			1,423			$	48.45				5.26			$	2,269

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 nine months ended September 26, 2025 is presented below (shares in thousands):

		Restricted Stock				RSUs				PSUs
Unvested at December 27, 2024			16				695				406
Granted			—				1,274				849
Vested			(16	)			(277	)			(20	)
Forfeited or expired			—				(186	)			(433	)
Unvested at September 26, 2025			—				1,506				802

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