<SEC-DOCUMENT>0001572407-13-000003.txt : 20130423
<SEC-HEADER>0001572407-13-000003.hdr.sgml : 20130423
<ACCEPTANCE-DATETIME>20130423103528
ACCESSION NUMBER:		0001572407-13-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20130205
FILED AS OF DATE:		20130423
DATE AS OF CHANGE:		20130423

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RXi Pharmaceuticals Corp
		CENTRAL INDEX KEY:			0001533040
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1500 WEST PARK DRIVE
		STREET 2:		SUITE 210
		CITY:			WESTBOROUGH
		STATE:			MA
		ZIP:			01581
		BUSINESS PHONE:		(508) 767-3861

	MAIL ADDRESS:	
		STREET 1:		1500 WEST PARK DRIVE
		STREET 2:		SUITE 210
		CITY:			WESTBOROUGH
		STATE:			MA
		ZIP:			01581

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Advanced RNA Technologies, LLC
		CENTRAL INDEX KEY:			0001572407
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54910
		FILM NUMBER:		13775446

	BUSINESS ADDRESS:	
		STREET 1:		1 KENDALL SQUARE BUILDING 200
		STREET 2:		SUITE 2203
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
		BUSINESS PHONE:		720-936-6628

	MAIL ADDRESS:	
		STREET 1:		1 KENDALL SQUARE BUILDING 200
		STREET 2:		SUITE 2203
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02139
</SEC-HEADER>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
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                    <value>36570</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.149</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>40718608</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
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            <transactionDate>
                <value>2013-03-07</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.195</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
                    <value>40668608</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
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                <value></value>
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                <directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
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                <value></value>
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                    <value>40111108</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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        <nonDerivativeTransaction>
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                <value>Common Stock, $0.0001 par value</value>
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                <value></value>
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                    <value>D</value>
                </transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
                    <value>39984265</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
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                <value>2013-03-15</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
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                <value></value>
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                    <value>100000</value>
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                <transactionPricePerShare>
                    <value>0.325</value>
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                    <value>D</value>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $0.0001 par value</value>
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                <value>2013-03-18</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
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                <value></value>
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                    <value>0.348</value>
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                    <value>D</value>
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                <sharesOwnedFollowingTransaction>
                    <value>39831365</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Sales of non-derivative securities sold in the manner required under Rule 144 for Affiliates of of the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Alexey Wolfson, Manager</signatureName>
        <signatureDate>2013-04-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
