<SEC-DOCUMENT>0000100885-16-000467.txt : 20161212
<SEC-HEADER>0000100885-16-000467.hdr.sgml : 20161212
<ACCEPTANCE-DATETIME>20161212153039
ACCESSION NUMBER:		0000100885-16-000467
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20161209
FILED AS OF DATE:		20161212
DATE AS OF CHANGE:		20161212

ISSUER:		

	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:			1119

	BUSINESS ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET
		STREET 2:		STOP 0310
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179
		BUSINESS PHONE:		402 544 5214

	MAIL ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET
		STREET 2:		STOP 0310
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BUTLER ERIC L
		CENTRAL INDEX KEY:			0001544184

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06075
		FILM NUMBER:		162046221

	MAIL ADDRESS:	
		STREET 1:		1400 DOUGLAS STREET, STOP 1210
		CITY:			OMAHA
		STATE:			NE
		ZIP:			68179
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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        <issuerName>UNION PACIFIC CORP</issuerName>
        <issuerTradingSymbol>UNP</issuerTradingSymbol>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>OMAHA</rptOwnerCity>
            <rptOwnerState>NE</rptOwnerState>
            <rptOwnerZipCode>68179</rptOwnerZipCode>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; CHIEF ADMIN OFFICER</officerTitle>
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                <value>Non-Qualified Stock Option (right to buy)</value>
                <footnoteId id="F2"/>
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                <transactionShares>
                    <value>12722</value>
                    <footnoteId id="F3"/>
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                <transactionPricePerShare>
                    <value>0.0</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2011-02-04</value>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2020-02-04</value>
            </expirationDate>
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                    <value>12722</value>
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                <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <value>2012-02-03</value>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2021-02-03</value>
            </expirationDate>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
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                    <value>14346</value>
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    <footnotes>
        <footnote id="F1">This transaction was made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 11, 2016.</footnote>
        <footnote id="F2">This option becomes exercisable in three equal installments starting one year from the grant date.</footnote>
        <footnote id="F3">On June 6, 2014, Union Pacific Corporation effected a 2-for-1 stock split in the form of a stock dividend.  Amounts of securities and the grant price or prices with respect to options, if any, and restricted stock or restricted stock units, if any, reported on this form have been adjusted to reflect the stock split.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Heather A. Fredrick, Attorney-in-Fact For: Eric L. Butler</signatureName>
        <signatureDate>2016-12-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
