| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Kalkstein Hobart | Executive Vice President | C/O CABOT CORPORATION, TWO SEAPORT LANE, SUITE 1400, BOSTON | By: Mazda Cintron, pursuant to a power of attorney from Hobart C. Kalkstein | 13 Jun 2025 | 0001671755 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CBT | Phantom Stock Units | Award | $4,632 | +62 | +0.6% | $74.72 | 10,356 | 13 Jun 2025 | Common Stock | 62 | Direct | F1, F2 |
| Id | Content |
|---|---|
| F1 | 1 for 1 |
| F2 | The reported phantom stock units were acquired under the Corporation's supplemental 401(k) plan and are to be settled upon the reporting person's retirement or other termination of service. |