    <SEC-DOCUMENT>0001140361-23-016740-index.html : 20230405
    <SEC-HEADER>0001140361-23-016740.hdr.sgml : 20230405
    <ACCEPTANCE-DATETIME>20230405164109
    ACCESSION NUMBER:		0001140361-23-016740
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		3
    FILED AS OF DATE:		20230405
    DATE AS OF CHANGE:		20230405

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			UNION PACIFIC CORP
    		CENTRAL INDEX KEY:			0000100885
    		STANDARD INDUSTRIAL CLASSIFICATION:	RAILROADS, LINE-HAUL OPERATING [4011]
    		IRS NUMBER:				132626465
    		STATE OF INCORPORATION:			UT
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-06075
    		FILM NUMBER:		23803145

    	BUSINESS ADDRESS:
    		STREET 1:		1400 DOUGLAS STREET
    		STREET 2:		STOP 0310
    		CITY:			OMAHA
    		STATE:			NE
    		ZIP:			68179
    		BUSINESS PHONE:		402 544 6763

    	MAIL ADDRESS:
    		STREET 1:		1400 DOUGLAS STREET
    		STREET 2:		STOP 0310
    		CITY:			OMAHA
    		STATE:			NE
    		ZIP:			68179
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ny20005972x2_defa14a.htm
    <DESCRIPTION>DEFA 14A
    <TEXT>
    Document 1 - file: ny20005972x2_defa14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ny20005972x2-nc_01.jpg
    <TEXT>
    Document 2 - file: ny20005972x2-nc_01.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>ny20005972x2-nc_02.jpg
    <TEXT>
    Document 3 - file: ny20005972x2-nc_02.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>