SEC Filing Summary

Sean D. Keohane, President and CEO of Cabot Corp, acquired 256.014 phantom stock units with a price of $87.65 per share on June 12, 2026. These units, which represent common stock, are part of the Corporation's Supplemental 401(k) Plan and will be settled upon retirement or termination of employment. Following this transaction, Mr. Keohane now owns 47,747.2951 shares. The filing is Form 4.