John J. Diez

John J. Diez is executive vice president and chief financial officer (CFO) for Ryder System, Inc., a leading commercial fleet management, dedicated transportation, and supply chain solutions company. He is responsible for Ryder’s financial management functions including finance and accounting, treasury, tax, audit, corporate strategy, and investor relations. He is a member of Ryder’s executive leadership team.

From 2019 to 2021, Mr. Diez was president of Ryder’s Fleet Management Solutions (FMS) business unit, the company's largest business segment. He led all areas of global fleet operations which included providing full-service leasing, contract maintenance, as well as commercial rental of trucks, tractors, and trailers to customers across a variety of industries.

Previously, from 2015 to 2019, Mr. Diez was president of Ryder’s Dedicated Transportation Solutions (DTS) business unit where he was responsible for setting the strategic direction of DTS, which combines vehicles, drivers, and administrative services with drivers and additional value-added services, all dedicated to a specific customer.

Prior to that role, Mr. Diez held the title of senior vice president of DTS. He also served as senior vice president of asset management, in which he led all aspects of strategy, operations, capital and operating planning, and corporate compliance for the commercial rental, used vehicle sales and strategic sourcing organizations.

Earlier, Mr. Diez was senior vice president of global field finance, where he managed the finance functions for global operations. Earlier, he was vice president and CFO for the FMS business segment. Mr. Diez started his career in the audit practice of KPMG LLP prior to joining Ryder.

He is a member of the Board of Directors for Trinity Industries, Inc. (NYSE: TRN). A licensed Certified Public Accountant (CPA) and a member of the American Institute of CPAs, Mr. Diez earned both his Bachelor of Science and Master of Science in Accounting from Florida International University.