| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| McLaughlin Erica | Executive Vice President, CFO | C/O CABOT CORPORATION, TWO SEAPORT LANE, SUITE 1400, BOSTON | By: Mazda Cintron, pursuant to a power of attorney from Erica McLaughlin | 12 Nov 2025 | 0001740348 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CBT | Common Stock | Tax liability | $138,357 | -2,253 | -3.4% | $61.41 | 64,815 | 11 Nov 2025 | Direct | |
| holding | CBT | Common Stock | 2 | 11 Nov 2025 | Through the Trustee for the Corporation's 401(k) Plan |