Cabot Corporation (NYSE: CBT) announced today that Sean Keohane has notified the Board of Directors of his decision to retire as President and Chief Executive Officer (CEO) of the Company and to step down from the Company’s Board of Directors, each effective September 30, 2026. Erica McLaughlin, Executive Vice President, Chief Financial Officer (CFO) and Head of Corporate Strategy, has been elected to succeed Keohane as President and CEO, and to serve on the Board as a member of the class of directors whose term expires at the 2029 Annual Meeting of Stockholders, both effective October 1, 2026