Minerals Technologies's three largest insider shareholders as of March 23, 2026 are Douglas T Dietrich (Chairman And Ceo, 175.97K shares), Dj Iii Monagle (Group President, 89.07K shares), Thomas J Meek (Senior Vice President, 83.85K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Douglas T Dietrich | Chairman And Ceo | 175,973 | 0 | 27 Jan, 2026 |
| Dj Iii Monagle | Group President | 89,073 | 0 | 27 Jan, 2026 |
| Thomas J Meek | Senior Vice President | 83,852 | 0 | 05 Dec, 2022 |
| Jonathan J Hastings | Senior Vice President | 63,811 | 0 | 27 Jan, 2026 |
| Douglas W Mayger | Senior Vice President | 45,744 | 0 | 27 Jan, 2023 |
| Michael Cipolla | Vice President | 39,529 | 0 | 27 Jan, 2026 |
| Brett Argirakis | Group President | 32,600 | 0 | 27 Jan, 2026 |
| Matthew E Garth | Svp, Finance Treasury, Cfo | 13,591 | 0 | 08 Mar, 2022 |
| Erin Cutler | Vp, Human Resources | 7,734 | 0 | 27 Jan, 2026 |
| Timothy Jordan | Vice President | 7,279 | 0 | 27 Jan, 2026 |
| Erik Aldag | Svp Finance And Treasury, Cfo | 6,959 | 0 | 27 Jan, 2026 |
| Kristina M Johnson | 1,400 | 0 | 05 May, 2025 | |
| Rocky Motwani | 1,192 | 0 | 17 Jun, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Mar, 2026 | John J Carmola | PHANTOM STOCK UNITS | A | 46 | $0.00 | 26,004 | D | A |
| 06 Mar, 2026 | Alison Ann Deans | PHANTOM STOCK UNITS | A | 27 | $0.00 | 15,439 | D | A |
| 06 Mar, 2026 | Carolyn K Pittman | PHANTOM STOCK UNITS | A | 33 | $0.00 | 18,609 | D | A |
| 06 Mar, 2026 | Kristina M Johnson | PHANTOM STOCK UNITS | A | 7 | $0.00 | 4,081 | D | A |
| 06 Mar, 2026 | Robert L Clark | PHANTOM STOCK UNITS | A | 56 | $0.00 | 31,742 | D | A |
| 06 Mar, 2026 | Rocky Motwani | PHANTOM STOCK UNITS | A | 11 | $0.00 | 6,185 | D | A |
| 06 Mar, 2026 | Marc E Robinson | PHANTOM STOCK UNITS | A | 44 | $0.00 | 24,965 | D | A |
| 06 Mar, 2026 | Franklin Feder | PHANTOM STOCK UNITS | A | 41 | $0.00 | 22,984 | D | A |
| 06 Mar, 2026 | Joseph C. Breunig | PHANTOM STOCK UNITS | A | 35 | $0.00 | 19,622 | D | A |
| 23 Jan, 2026 | Jonathan J Hastings | Common Stock | A | 3,113 | $0.00 | 63,441 | D | M |
| 23 Jan, 2026 | Michael Cipolla | Common Stock | A | 1,427 | $0.00 | 39,671 | D | M |
| 23 Jan, 2026 | Dj Iii Monagle | Common Stock | A | 3,795 | $0.00 | 89,600 | D | M |
| 23 Jan, 2026 | Douglas T Dietrich | Common Stock | A | 11,016 | $0.00 | 177,094 | D | M |
| 23 Jan, 2026 | Erik Aldag | Common Stock | A | 2,243 | $0.00 | 7,377 | D | M |
| 23 Jan, 2026 | Erin Cutler | Common Stock | A | 1,276 | $0.00 | 7,667 | D | M |
| 23 Jan, 2026 | Brett Argirakis | Common Stock | A | 3,247 | $0.00 | 32,504 | D | M |
| 23 Jan, 2026 | Timothy Jordan | Common Stock | A | 2,046 | $0.00 | 7,401 | D | M |
| 23 Jan, 2026 | Dj Iii Monagle | Common Stock | D | 2,099 | $68.77 | 87,501 | D | F |
| 23 Jan, 2026 | Erik Aldag | Common Stock | D | 1,240 | $68.77 | 6,137 | D | F |
| 23 Jan, 2026 | Douglas T Dietrich | Common Stock | D | 6,092 | $68.77 | 171,002 | D | F |