Minerals Technologies Inc. filings document formal disclosures for its NYSE-listed common stock, including current reports that furnish quarterly financial-performance press releases and proxy materials for annual shareholder voting. The filing record identifies MTI as a specialty minerals company and links reported results to its Consumer & Specialties and Engineered Solutions operating segments.
Proxy disclosures cover board elections, auditor ratification, advisory executive-compensation votes, annual-meeting procedures, and related governance matters. Current reports also identify exhibit filings, interactive data cover pages, and the company’s registered common stock structure.
Minerals Technologies Inc. Group President Brett Argirakis reported multiple equity-related transactions in company stock. On January 23, 2026, deferred restricted stock units (DRSUs) representing 3,247 shares of common stock were converted at $0 per share, and the company withheld 1,413 shares at $68.77 to satisfy tax obligations, leaving 31,091 directly held shares. On January 26, 2026, a further 2,672 DRSUs converted at $0 per share, with 1,163 shares withheld at $68.89 for taxes, resulting in 32,600 directly held shares.
In addition, Argirakis holds 2,850.7 shares of common stock indirectly through a 401(k) plan as of a plan statement dated January 21, 2026. Each DRSU is the economic equivalent of one share of Minerals Technologies common stock and reflects prior grants that vest in three equal annual installments.
Minerals Technologies Inc. Senior Vice President Jonathan J. Hastings reported routine equity transactions involving deferred restricted stock units (DRSUs) and common stock. On January 23, 2026, 3,113 DRSUs were converted into the same number of common shares at an exercise price of $0, and the company withheld 1,354 common shares at $68.77 per share to cover tax obligations, leaving him with 62,087 directly held shares. On January 26, 2026, a further 3,051 DRSUs were converted into common stock at $0, and 1,327 shares were withheld at $68.89 per share for taxes, resulting in 63,811 directly held shares plus 2,932.333 shares held indirectly through a 401(k) plan.
Minerals Technologies Inc. (MTX) vice president Timothy Jordan reported equity award activity involving deferred restricted stock units (DRSUs) and common stock. On January 23, 2026, he converted 2,046 DRSUs into the same number of common shares at an exercise price of $0, and the company withheld 1,058 shares at $68.77 per share to cover tax obligations. On January 26, 2026, he converted an additional 1,917 DRSUs into common stock at $0, with 981 shares withheld at $68.89 per share for taxes.
Following these transactions, Jordan directly held 7,279 shares of Minerals Technologies common stock and had an additional 2,678.101 shares held indirectly through a 401(k) plan. He also continued to hold 12,870 DRSUs, each economically equivalent to one share of common stock, reflecting ongoing equity-based compensation.
Minerals Technologies Inc. Group President DJ Monagle III reported multiple equity transactions involving Deferred Restricted Stock Units (DRSUs) and common stock. On January 23, 2026, 3,795 DRSUs converted to common stock at $0, increasing his direct holdings to 89,600 shares, and 2,099 shares were withheld by the company at $68.77 per share to satisfy tax withholding obligations. On January 26, 2026, a further 3,519 DRSUs converted at $0, lifting direct holdings to 91,020 shares, with 1,947 shares withheld at $68.89 per share for taxes.
After these transactions, Monagle directly owned 89,073 shares of common stock and indirectly held 807.854 shares through a 401(k) plan. He also continued to hold 26,801 DRSUs after the January 23 conversion and 23,282 DRSUs after the January 26 conversion, each DRSU being the economic equivalent of one share of Minerals Technologies common stock.
Minerals Technologies Inc. CFO Erik Aldag reported stock transactions involving deferred restricted stock units (DRSUs) and common shares. On January 23, 2026, 2,243 DRSUs were converted to common stock, and 1,240 shares were sold at $68.77 to cover tax withholding obligations, leaving 6,137 common shares held directly. On January 26, 2026, 1,841 additional DRSUs were converted, and 1,019 shares were sold at $68.89 for taxes, bringing direct common stock holdings to 6,959 shares. Aldag also holds 897.255 common shares indirectly through a 401(k) plan and retains 17,128 and 15,287 DRSUs from earlier grants that each convert economically into one share of common stock and vest in three annual installments.
Minerals Technologies Inc. Senior Vice President Jonathan J. Hastings reported equity compensation activity involving Deferred Restricted Stock Units (DRSUs) and common stock. On January 21, 2026, 2,788 DRSUs were converted into the same number of common shares at an exercise price of $0 per share. To cover tax withholding obligations, 1,318 of these shares were withheld by Minerals Technologies Inc. at $66.92 per share.
After these transactions, Hastings directly beneficially owned 60,328 shares of common stock and held an additional 2,932.333 shares indirectly through a 401(k) plan. He also beneficially owned 14,851 DRSUs, each economically equivalent to one share of Minerals Technologies Inc. common stock.
Minerals Technologies Inc. SVP Finance and Treasury, CFO Erik Aldag reported equity award activity involving Deferred Restricted Stock Units (DRSUs) and common stock on January 21, 2026. He converted 2,245 DRSUs, each economically equivalent to one share of common stock, into the same number of common shares at an exercise price of $0.
To cover tax withholding obligations, 1,356 common shares were withheld by Minerals Technologies Inc. at a price of $66.92 per share. Following these transactions, Aldag directly held 5,134 shares of common stock, plus 897.255 shares indirectly through a 401(k) plan, and 19,371 DRSUs remained beneficially owned.
Minerals Technologies Inc. executive Brett Argirakis reported equity compensation activity involving company stock. On January 21, 2026, 3,112 Deferred Restricted Stock Units (DRSUs), each equal to one share of common stock, were converted into 3,112 shares of Minerals Technologies common stock at an exercise price of $0. To cover tax withholding obligations related to this vesting, the company withheld 1,457 shares of common stock at a price of $66.92 per share, rather than these shares being sold in the open market.
After these transactions, Argirakis beneficially owned 29,257 shares of common stock directly and 2,850.7 shares indirectly through a 401(k) plan, along with 27,491 DRSUs that remain outstanding. The DRSUs involved in this transaction were part of an award granted on January 21, 2025 that vests in three equal annual installments beginning January 21, 2026.
Minerals Technologies Inc. vice president Michael Cipolla reported equity transactions involving company stock and deferred units. On January 21, 2026, 1,290 Deferred Restricted Stock Units (DRSUs), each economically equivalent to one share of common stock, were converted into 1,290 shares of common stock at $0 per share. On the same date, 731 common shares at $66.92 were withheld by Minerals Technologies Inc. to cover tax withholding obligations.
After these transactions, Cipolla directly held 38,244 shares of common stock, with an additional 9,802.966 shares held indirectly through a 401(k) plan. He also held 11,342 DRSUs directly. The DRSUs referenced in this report were originally granted on January 21, 2025 and vest in three equal annual installments beginning January 21, 2026.
Minerals Technologies Inc. executive Erin Cutler, VP of Human Resources, reported an equity award vesting and related tax withholding. On January 21, 2026, 1,193 Deferred Restricted Stock Units (DRSUs), each equal to one share of common stock, were converted into 1,193 shares of Minerals Technologies common stock at an exercise price of $0. As part of the same event, 583 shares of common stock were withheld by the company at $66.92 per share to cover tax obligations, rather than being sold on the open market.
After these transactions, Cutler directly owned 6,391 shares of common stock and 10,589 DRSUs, with an additional 1,697.399 shares held indirectly through a 401(k) plan as of January 21, 2026.