Union Pacific Corporation announced on October 16, 2026, that Executive Vice President and Chief Financial Officer Jennifer L. Hamann plans to retire in early 2027. Ms. Hamann will continue to serve in her current role until her departure.
Ms. Hamann joined Union Pacific in 1992 as a member of the company's audit staff. Over the course of her career, she has held leadership roles across Finance, Human Resources, Marketing and Sales, Investor Relations, and Corporate Audit before being named Chief Financial Officer in January 2020. She is recognized as the first woman to serve as Union Pacific's CFO.
The company stated that Ms. Hamann guided Union Pacific through significant periods of change, including the COVID-19 pandemic and major operational transformation efforts. Her tenure included strengthening the company's balance sheet and enhancing capital allocation strategies. She also served on the boards of TTX Company, Grupo Ferroviario Mexicano, and Steel Dynamics.
CEO Jim Vena praised Ms. Hamann’s leadership, noting her commitment to integrity and her role in mentoring future leaders. Ms. Hamann expressed gratitude for her nearly 35 years of service and stated she remains an ardent supporter of the company’s future direction. The company indicated that succession plans will be announced at a later date.
