FORM 10-K

Company

UNION PACIFIC CORP

Filed

February 18, 2004

Period of Report

December 31, 2003

Accession Number

0001193125-04-025678

A 10-K is a company's comprehensive annual report, required by the SEC. It includes audited financial statements, a description of the business, risk factors, and management's discussion of results. Learn more about 10-K filings →