Earnings (Loss) per Share (Tables)

3 Months Ended

Apr. 05, 2026

Earnings (Loss) per Share [Abstract]

Computation of Basic and Diluted Earnings (Loss) per Share

The following table sets forth the computation of basic and diluted earnings (loss) per share:

	Three Months Ended
		Apr. 5,		Mar. 30,
(in millions of dollars, except per share data)		2026		2025
Net income (loss) attributable to Minerals Technologies Inc.	$	36.2	$	(144.0	)
Weighted average shares outstanding		31.0		31.9
Dilutive effect of stock options and deferred restricted stock units		-		-
Weighted average shares outstanding, adjusted		31.0		31.9
Basic earnings (loss) per share attributable to Minerals Technologies Inc.	$	1.17	$	(4.51	)
Diluted earnings (loss) per share attributable to Minerals Technologies Inc.	$	1.17	$	(4.51	)