SEC Form 4 · accession 0001193125-26-377202
CABOT CORP · CBT
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Sean D Keohane
Officer — President and CEO · Director
Period of report
Aug 28, 2026
Accepted (ET)
Aug 31, 2026 · 7:00 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000016040
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Aug 28, 2026 | M | 134,895 | $50.00 | A | 539,029 | D | |
| Common Stock | Aug 28, 2026 | S | 134,895 | $85.00 | D | 404,134 | D | |
| Common Stock | holding | — | — | — | 14,264 | I | Through the Trustee for the Corporation's 401(k) Plan |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Employee Stock Option (Right to Buy)F1 | $50.00 | Aug 28, 2026 | M | 134,895 | D | — | Nov 8, 2028 | Common Stock | 134,895 | 0 | D |
Explanation of responses
- F1137,674 shares were subject to the option. The option vested over a three year period as follows: 30% on November 9, 2019, 30% on November 9, 2020, and 40% on November 9, 2021.