X0508 4 2026-01-08 0000016040 CABOT CORP CBT 0001715897 Morrow Michael M C/O CABOT CORPORATION TWO SEAPORT LANE, SUITE 1400 BOSTON MA 02210 true false false false false Common Stock 2026-01-08 4 A false 2298 0 A 22302 D The shares have been deferred pursuant to Cabot's Non-Employee Directors' Deferral Plan. By: Jennifer Lombardi, pursuant to a power of attorney from Michael M. Morrow 2026-01-12