Goodyear Tire & Rubber Co. ousted Chief Executive Mark Stewart on Monday, ending his tenure as CEO and president and prompting an abrupt leadership change. Director Roger Wood was appointed interim CEO and president, while Stewart resigned from the board with immediate effect. Stewart had served as CEO since January 2024. Goodyear shares fell as much as 7% after the announcement and later traded 2.02% lower under the ticker GT, as investors questioned a turnaround that has yet to deliver on its profit targets. The board plans to seek a permanent successor with help from an executive search firm. The Akron, Ohio-based tiremaker also faces tariffs, higher raw-material costs and stronger competition from China.