X0306 4 2022-09-30 0 0000016040 CABOT CORP CBT 0001740348 McLaughlin Erica C/O CABOT CORPORATION TWO SEAPORT LANE, SUITE 1400 BOSTON MA 02210 0 1 0 0 Senior Vice President, CFO Phantom Stock Units 63.89 2022-09-30 4 A 0 149.9249 63.89 A Common Stock 149.9249 5693.5032 D 1 for 1 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 in accordance with the provisions of the plan. By: Jennifer Lombardi, pursuant to a power of attorney from Erica McLaughlin 2022-10-03