MTX: Financial results

Item 2.02 Other Events On October 29, 2026, Minerals Technologies Inc. issued a press release regarding its financial performance for the third quarter of 2026. A copy of the press release is attached hereto as Exhibit 99.1 and incorporated by reference herein. The information in this Item 2.02 and Exhibit 99.1 shall not be deemed filed for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, or incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits 99.1 Press Release dated October 29, 2026 104 Cover Page Interactive Data File (formatted as inline XBRL) 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. MINERALS TECHNOLOGIES INC. (Registrant) By: /s/ Timothy J. Jordan Name: Timothy J. Jordan Title: Vice President, General Counsel, Secretary and Chief Compliance Officer Date: October 29, 2026