| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kalita Karen A | SVP and General Counsel | C/O CABOT CORPORATION, TWO SEAPORT LANE, SUITE 1400, BOSTON | By: Mazda Cintron, pursuant to a power of attorney from Karen A. Kalita | 12 Nov 2025 | 0001778734 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CBT | Common Stock | Tax liability | $54,962 | -895 | -2.3% | $61.41 | 37,512 | 11 Nov 2025 | Direct | |
| holding | CBT | Common Stock | 577 | 11 Nov 2025 | Through the Trustee for the Corporations's 401(k) Plan |