| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hastings Jonathan J | Senior Vice President | 622 THIRD AVENUE, NEW YORK | /s/ Timothy J. Jordan for Jonathan Hastings | 27 Jan 2026 | 0001528931 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTX | Common Stock | Options Exercise | $0 | +3,113 | +5.2% | $0.000000 | 63,441 | 23 Jan 2026 | Direct | |
| transaction | MTX | Common Stock | Tax liability | $93,115 | -1,354 | -2.1% | $68.77 | 62,087 | 23 Jan 2026 | Direct | F1 |
| transaction | MTX | Common Stock | Options Exercise | $0 | +3,051 | +4.9% | $0.000000 | 65,138 | 26 Jan 2026 | Direct | |
| transaction | MTX | Common Stock | Tax liability | $91,417 | -1,327 | -2% | $68.89 | 63,811 | 26 Jan 2026 | Direct | F1 |
| holding | MTX | Common Stock | 2,932 | 23 Jan 2026 | By 401(k) | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTX | Deferred Restricted Stock Units (DRSUs) | Options Exercise | $0 | -3,113 | -21% | $0.000000 | 11,738 | 23 Jan 2026 | Common Stock | 3,113 | Direct | F3, F4 | |
| transaction | MTX | Deferred Restricted Stock Units (DRSUs) | Options Exercise | $0 | -3,051 | -26% | $0.000000 | 8,687 | 26 Jan 2026 | Common Stock | 3,051 | Direct | F3, F5 |
| Id | Content |
|---|---|
| F1 | These shares were withheld by Minerals Technologies Inc. to satisfy tax withholding obligations. |
| F2 | The information contained in this report is based on a Plan Statement dated as of January 21, 2026. |
| F3 | Each DRSU is the economic equivalent of one share of Minerals Technologies Inc. Common Stock. |
| F4 | The DRSUs were granted on January 23, 2024 and vest in three equal annual installments beginning on January 23, 2025. |
| F5 | The DRSUs were granted on January 24, 2023 and vest in three equal annual installments beginning on January 24, 2024. |