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Earnings (Loss) per Share | 3 Months Ended
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Mar. 30, 2025
Earnings (Loss) per Share [Abstract] |
Earnings (Loss) per Share | Note 3. Earnings (loss) per Share (EPS) Basic earnings (loss) per share are based upon the weighted average number of common shares outstanding during the period. Diluted earnings (loss) per share are based upon the weighted average number of common shares outstanding during the period, assuming the issuance of common shares for all potentially dilutive common shares outstanding. The following table sets forth the computation of basic and diluted earnings (loss) per share:
|  | Three Months Ended |
(in millions, except per share data) |  | Mar. 30, 2025 |  |  | Mar. 31, 2024 |
Net income (loss) attributable to Minerals Technologies Inc. |  | $ | (144.0 | ) |  | $ | 46.7 |
Weighted average shares outstanding |  |  | 31.9 |  |  |  | 32.3 |
Dilutive effect of stock options and deferred restricted stock units |  |  | — |  |  |  | 0.1 |
Weighted average shares outstanding, adjusted |  |  | 31.9 |  |  |  | 32.4 |
Basic earnings (loss) per share attributable to Minerals Technologies Inc. |  | $ | (4.51 | ) |  | $ | 1.45 |
Diluted earnings (loss) per share attributable to Minerals Technologies Inc. |  | $ | (4.51 | ) |  | $ | 1.44 |
MINERALS TECHNOLOGIES INC. AND SUBSIDIARY COMPANIES NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) Of the options outstanding of 1,596,748 and 1,671,687 for the three-month periods ended March 30, 2025 and March 31, 2024, respectively, options to purchase 1,596,748 shares and 900,163 shares of common stock for the three-month periods ending March 30, 2025 and March 31, 2024, respectively, were not included in the computation of diluted earnings (loss) per share because they were anti-dilutive, as the exercise prices of the options were greater than the average market price of the common shares.

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