Union Pacific CFO Jennifer Hamann to retire in early 2027 after 35 years

Union Pacific’s longtime finance chief is heading for the exits, opening a succession process at one of the largest U.S. railroads.

The company said Friday that Executive Vice President and Chief Financial Officer Jennifer Hamann will retire in early 2027, ending a 35-year career at the railroad, according to an 8-K and accompanying press release. Hamann joined Union Pacific in 1992 on the audit staff and became CFO in January 2020. She was the first woman to hold that role at the company, the release said.

During her tenure as CFO, Hamann helped guide the balance sheet, capital allocation and investor messaging through the COVID-19 period and later operating changes, the company said. She has also served on boards including TTX Company, Grupo Ferroviario Mexicano and Steel Dynamics.

Chief Executive Officer Jim Vena said in the release that Hamann “led with integrity and heart” and “made this railroad stronger.” Hamann said she remains “an ardent supporter of the merger” and is confident in Vena and the team. Union Pacific said it will announce succession plans at a later date.

By the numbers

• Tenure at Union Pacific: 35 years (joined 1992)
• Named CFO: January 2020
• Planned retirement: early 2027
• Succession: to be announced later

Sources

1. Union Pacific Corporation, Form 8-K (Items 5.02, 7.01, 9.01), filed Oct. 16, 2026, accession 0000100885-26-000305
2. Union Pacific Railroad press release (Exhibit 99.1), Oct. 16, 2026

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