Jason Cellier represents clients in a wide range of complex commercial litigation matters, including high-stakes investigations and government enforcement proceedings. He has represented clients in the petroleum, health care, energy, and insurance industries.
Jason has significant experience defending some of the nation's largest companies in multijurisdictional and multiparty matters, including class action civil litigation, antitrust, and consumer protection lawsuits. He is currently defending a Fortune 100 company facing multiple class actions in federal and state courts, as well as a government investigation, related to the distribution of opioid medications. Jason recently played a pivotal role in securing the dismissal of antitrust and consumer protection claims brought by the Commonwealth of Kentucky Attorney General against Marathon Petroleum Corporation.
Jason also has significant experience conducting and managing government and internal investigations. He recently represented a multistate health care system in an investigation and provided advice to the board and board subgroup regarding the practices of hospital staff and leadership.
Jason maintains an active pro bono practice and has represented immigrants seeking asylum in the United States.
Prior to joining Jones Day, Jason served as a law clerk on the United States District Court for the Eastern District of Kentucky. He is active in his church.
- University of Notre Dame (J.D. cum laude 2014; Senior Managing Editor, Law Review); Wheaton College (B.A. in Political Science magna cum laude 2011)
- Law Clerk to the Honorable Danny C. Reeves, U.S. District Court, Eastern District of Kentucky (2014-2015)