Chief Financial Officer Jennifer Hamann will retire in early 2027, Union Pacific (NYSE: UNP) has announced.
Hamann, who joined Union Pacific in 1992, was named CFO in January 2020. She had previously held leadership roles in a broad range of areas, including finance, human resources, marketing and sales, investor relations, and corporate audit.
“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,” UP Chief Executive Jim Vena said in release. “Jennifer was tough — she never said yes unless she believed it was the right thing to do for Union Pacific. She made this railroad stronger, and her contributions will be felt for generations. I am deeply grateful for her leadership and friendship.”

Hamann is the first woman to serve as the railroad’s chief financial officer. She was the executive sponsor of LEAD, the company’s women’s employee resources group, and was recognized by The Manufacturing Institute with a Woman MAKE Award for her contributions to the manufacturing and transportation industries.
“It’s been my honor to serve and represent Union Pacific as its CFO,” Hamann 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. Becoming the nation’s first transcontinental railroad is the exciting chapter ahead. I remain an ardent supporter of the merger and with Jim and team leading the way, I’m confident of our success.”
Union Pacific said it will announce succession plans at a later date.
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