Jennifer Hamann, Chief Financial Officer of Union Pacific (NYSE: UNP), will retire in early 2027, the US railroad company has announced. Her departure will bring to a close a career spanning nearly 35 years at one of the country’s largest freight rail operators.
Hamann joined Union Pacific in 1992 and was appointed CFO in January 2020. Before taking on the position, she held leadership roles across several key functions, including finance, human resources, marketing and sales, investor relations, and corporate audit. Her broad experience across the business helped shape her contribution to the company’s financial management and corporate strategy.
Union Pacific Chief Executive Jim Vena paid tribute to Hamann’s leadership, highlighting her integrity, determination and influence on the railroad’s development.
“For 35 years, she led with integrity and heart, guiding our finances through historic challenges, executing our strategy, mentoring future leaders and representing Union Pacific across the industry,” Vena said in a company release.
He also emphasized her willingness to challenge decisions when she believed they were not in the company’s best interests, describing her as a leader whose impact would extend well beyond her retirement. Vena added that Hamann had helped make the railroad stronger and expressed his gratitude for both her professional leadership and their personal relationship.
Hamann made history as the first woman to serve as Union Pacific’s CFO. Beyond her financial responsibilities, she also served as executive sponsor of LEAD, the company’s women’s employee resource group, supporting initiatives aimed at strengthening representation and professional development within the organization.
Her contribution to the manufacturing and transportation sectors was also recognized by The Manufacturing Institute, which presented her with a Woman MAKE Award.
Reflecting on her tenure, Hamann described representing Union Pacific as CFO as an honor and thanked the colleagues, friends and family members who supported her throughout her career.
“It’s been my honor to serve and represent Union Pacific as its CFO,” she said. “I am grateful for all who supported me along the way my family, friends and the Union Pacific family I’ve worked alongside for nearly 35 years.”
Looking ahead, Hamann expressed continued support for Union Pacific’s proposed merger, describing the company’s ambition to become the nation’s first transcontinental railroad as an exciting next chapter. She said she remained confident in the transaction’s prospects under Vena and the wider leadership team.
The merger remains a significant strategic priority for Union Pacific, and Hamann’s comments signal her continued backing of the initiative as the company moves forward with its plans.
Union Pacific has not yet named a successor. The company said it would communicate its succession plans at a later date.
Her retirement marks the end of a long career at Union Pacific, during which she held senior positions across multiple business functions before becoming CFO and one of the railroad’s most prominent female executives.
