Keohane joined Cabot in 2002 and has held several key management positions, including senior vice-president and president of the performance materials segment and, most recently, executive VP and president of the reinforcement materials segment.
Prior to joining Cabot, Keohane worked for Pratt & Whitney, a division of United Technologies in a variety of general management positions.
“Sean’s experience leading both the reinforcement materials and performance chemicals segments as well as the company’s commercial excellence initiative will enable him to be successful in the CEO role,” said Cabot’s non-executive chairman of the board John O’Brien.
Prevost served as president and CEO for eight years and his resignation became effective on March 11, 2016. He will continue to be an advisor of the company and will continue serving as a director.
Prevost had a minor stroke before the end of the year in 2015 and has been on leave ever since.