SEC Filing Summary

Erica McLaughlin, Executive Vice President and CFO of Cabot Corp, acquired 93.5446 phantom stock units of common stock on September 30, 2026. These units, valued at $76.91 per share, were acquired under the Corporation's supplemental 401(k) plan and will be settled upon retirement or termination of service. Following this transaction, Ms. McLaughlin owns 10455.609 shares. The transaction was reported on Form 4, filed on October 1, 2026.