Basic net income (loss) per share is computed by dividing net income (loss) by the weighted-average number of outstanding shares of common stock during the period. Diluted net income (loss) per share is computed using the treasury stock method for stock-based awards, and the if-converted method for convertible notes. Under the treasury stock method, the denominator is adjusted to include, when dilutive, incremental shares issuable upon the assumed exercise of stock options, ESPP shares to be issued, and vesting of service-based and performance-based restricted stock units. Under the if-converted method, interest expense is not added back to the numerator because the terms of the convertible notes require the principal to be settled in cash upon conversion. The denominator includes the incremental shares assumed to be issued to settle the conversion premium, based on the average market price of the Company's common stock during the reporting


	Three Months Ended				Six Months Ended
(In millions, except per share amounts)	June 26, 2026		June 27, 2025		June 26, 2026		June 27, 2025
Numerator:
Net income (loss) attributable to UCT	$	8.7	$	(162.0)	$	(9.2)	$	(167.0)
Denominator:
Shares used in computation — basic:
Basic weighted average common shares outstanding	45.1		45.2		45.2		45.2
Shares used in computation — diluted:
Weighted average common shares outstanding	45.1		45.2		45.2		45.2
Effect of potential dilutive securities:
Convertible notes	0.1		—		—		—
Employee stock plans	0.9		—		—		—
Diluted weighted average common shares outstanding	46.1		45.2		45.2		45.2
Net income (loss) per share attributable to UCT:
Basic	$	0.19	$	(3.58)	$	(0.20)	$	(3.70)
Diluted	$	0.19	$	(3.58)	$	(0.20)	$	(3.70)

The following outstanding potentially dilutive shares were excluded from the calculation of diluted net income (loss) per share of common stock because their impact would have been antidilutive for the period presented:


	Three Months Ended		Six Months Ended
(In millions)	June 26, 2026	June 27, 2025	June 26, 2026	June 27, 2025
Employee equity plan	0.0	1.4	1.4	1.2
Employee stock purchase plan	—	0.0	0.0	0.1
Convertible notes	—	—	7.1	—
Common shares excluded from calculation of diluted net income (loss) per share	0.0	1.4	8.5	1.3