| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTX | Common Stock | Options Exercise | $807,800 | +13,936 | +11% | $57.96 | 145,702 | 07 Dec 2023 | Direct | |
| transaction | MTX | Common Stock | Sale | $866,167 | -13,662 | -9.4% | $63.40 | 132,040 | 07 Dec 2023 | Direct | F1, F2 |
| holding | MTX | Common Stock | 4,095 | 07 Dec 2023 | By 401(k) | F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTX | Employee Stock Option (Right to Buy) | Options Exercise | $0 | -13,936 | -100% | $0.000000* | 0 | 07 Dec 2023 | Common Stock | 13,936 | $57.96 | Direct | F4 |
| Id | Content |
|---|---|
| F1 | Reflects shares sold to pay withholding taxes and costs of options; balance of shares retained by the officer. |
| F2 | Weighted average price representing high of $63.97 and low of $63.22. |
| F3 | The information contained in this report is based on a Plan Statement dated as of December 7, 2023. |
| F4 | The options vested in three equal annual installments beginning on January 22, 2015. |