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MLB Official Info

MLB Executives

Jonathan D. Mariner
Executive Vice President and Chief Financial Officer
Jonathan Mariner

Mr. Mariner currently serves as Executive Vice President and Chief Financial Officer of Major League Baseball in the Office of the Commissioner. In addition to his daily responsibilities for overseeing the Major League Baseball's central office budgeting, financial reporting, treasury, and risk management activities, Mr. Mariner's duties include overseeing all Club-level financial reporting through the team CFO's; administering MLB's $1.5 billion league-wide credit facility; and providing updates at Owners' Meetings on the industry's financial health. Mr. Mariner also serves on several Commissioner-appointed, League-wide committees, including those dealing with Finance and Compensation; Revenue Sharing; Labor Planning; Diversity Oversight, and MLB's long-term investment fund.

Mr. Mariner previously served as Executive Vice President and Chief Financial Officer for the Florida Marlins Baseball Club, initially under the ownership of Wayne Huizenga and, following a sale in 1999, under then-owner John W. Henry (now the Principal Owner of the Boston Red Sox). He also held the position of Vice President and Chief Financial Officer for the Florida Panthers Hockey Club during their initial start-up and 1993-94 inaugural seasons; and as Vice president and Chief Financial Officer for Pro Player (now SunLife) Stadium.

Mr. Mariner currently serves on the board of directors of FM Global Insurance Company; and Technology Frontiers, a privately held, Chennai, India-based technology firm. He also serves on a number of charitable, foundation and advisory boards, including the University of Virginia's McIntire School of Commerce Foundation; and Little League Baseball, where he chairs their audit and co-chairs their investment committees.

Mr. Mariner graduated from the University of Virginia with a B.S. degree in Accounting, received his MBA degree from the Harvard Business School, and is a former Certified Public Accountant (CPA).