News Releases


Union Pacific Announces Finance Department Appointments; Mary Jones' and Pat O'Malley's Retirements

Omaha, Neb., October 5, 2017

Union Pacific has named Jon Panzer vice president and treasurer, Jennifer Hamann vice president-Planning and Analysis, and Bryan Clark vice president-Tax. Mary Jones, vice president and treasurer, and Pat O’Malley, vice president-Tax have announced their retirements.

Panzer, currently vice president-Planning and Analysis, was named vice president and treasurer. During his 21-year career, Panzer previously held positions in Investor Relations, Financial Analysis, and Union Pacific’s Intermodal, Streamline and Chemicals groups in Marketing and Sales. Panzer earned a bachelor’s degree in electrical engineering from the University of Nebraska and a master’s degree in industrial administration from Carnegie Mellon.

Panzer will succeed Jones who plans to retire on Dec. 1 after 37 years at Union Pacific and 18 years as treasurer. Jones will help transition the vice president and treasurer responsibilities as senior vice president-Finance. Throughout her career, Jones has provided thoughtful financial leadership and has been a strong advocate for shareholders. During her tenure as treasurer, the company strengthened its balance sheet significantly while increasing dividends over ten-fold and repurchasing over 30 percent of shares outstanding. Jones earned a master’s degree in business administration from Columbia University.

Hamann, who most recently served as Union Pacific vice president and general manager-Automotive, has been appointed vice president-Planning and Analysis. She has been with Union Pacific 25 years, serving in Investor Relations, Corporate Audit and Human Resources. Hamann earned a master’s degree in business administration from the University of Nebraska at Omaha. She has also fulfilled the requirements and examinations necessary to receive a Certified Public Accountant certificate.

Clark, currently assistant vice president-Federal Tax, was appointed vice president-Tax. Clark has held key Finance positions in Tax during his 24 years at Union Pacific. Clark earned a bachelor’s degree in Accounting from the University of Nebraska-Lincoln, and is a Certified Public Accountant.

Clark will succeed O’Malley who will retire Nov. 30 after 33 years with Union Pacific and seven years as vice president-Tax. During his tenure, O’Malley’s knowledge and experience have been valuable assets for the company, and he has played a key role in understanding and advancing tax policy for the rail industry. He served as Chairman of the Association of American Railroads’ Tax Policy Committee from January 2011 until September 2017. O’Malley earned a Juris Doctor from Boston College Law School.

“Jon, Jennifer and Bryan bring a wealth of experience, offering a wide range of advantages supporting Union Pacific’s commitment to create value for our customers and great financial returns for our shareholders,” said Union Pacific Executive Vice President and Chief Financial Officer Rob Knight. “We wish Mary and Pat the best in retirement and thank them for their many significant contributions to Union Pacific’s financial success.”


Union Pacific Railroad is the principal operating company of Union Pacific Corporation (NYSE: UNP). One of America's most recognized companies, Union Pacific Railroad connects 23 states in the western two-thirds of the country by rail, providing a critical link in the global supply chain. In the last 10 years, 2007-2016, Union Pacific invested approximately $34 billion in its network and operations to support America's transportation infrastructure. The railroad's diversified business mix is classified into its Agricultural Products, Energy, Industrial and Premium business groups. Union Pacific serves many of the fastest-growing U.S. population centers, operates from all major West Coast and Gulf Coast ports to eastern gateways, connects with Canada's rail systems and is the only railroad serving all six major Mexico gateways. Union Pacific provides value to its roughly 10,000 customers by delivering products in a safe, reliable, fuel-efficient and environmentally responsible manner.

Union Pacific media contact: Raquel Espinoza at (402) 544-5034 or

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