Matt Wierwille

Matt Wierwille is an experienced tax professional currently serving as the International Tax Director at Ashland since June 2021. Prior positions include Tax Attorney at Marathon Petroleum Corporation from December 2019 to May 2021 and International Tax Manager at EY from October 2012 to December 2019, where responsibilities included advising multinational companies on various tax matters. Wierwille gained foundational experience as a Law Clerk at the Indiana Attorney General's Office, focusing on federal and state tax law, and as a Finance/Accounting Intern at Worthington Industries, where significant financial management was executed. Wierwille holds a J.D. from Indiana University Bloomington and both a Master of Accounting and a Bachelor of Science in Business Administration from The Ohio State University.