<SEC-DOCUMENT>0001172661-18-000581.txt : 20180214
<SEC-HEADER>0001172661-18-000581.hdr.sgml : 20180214
<ACCEPTANCE-DATETIME>20180214085837
ACCESSION NUMBER:		0001172661-18-000581
CONFORMED SUBMISSION TYPE:	13F-HR
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20171231
FILED AS OF DATE:		20180214
DATE AS OF CHANGE:		20180214
EFFECTIVENESS DATE:		20180214

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Sheffield Asset Management, L.L.C.
		CENTRAL INDEX KEY:			0001314150
		IRS NUMBER:				030502647
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		13F-HR
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	028-12168
		FILM NUMBER:		18607509

	BUSINESS ADDRESS:	
		STREET 1:		900 NORTH MICHIGAN AVENUE
		STREET 2:		SUITE 2000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611
		BUSINESS PHONE:		312-506-6403

	MAIL ADDRESS:	
		STREET 1:		900 NORTH MICHIGAN AVENUE
		STREET 2:		SUITE 2000
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60611

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Sheffield Asset Management
		DATE OF NAME CHANGE:	20050111
</SEC-HEADER>
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          <ccc>XXXXXXXX</ccc>
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      <periodOfReport>12-31-2017</periodOfReport>
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      <reportCalendarOrQuarter>12-31-2017</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>Sheffield Asset Management, L.L.C.</name>
        <address>
          <ns1:street1>900 North Michigan Avenue</ns1:street1>
          <ns1:street2>Suite 2000</ns1:street2>
          <ns1:city>Chicago</ns1:city>
          <ns1:stateOrCountry>IL</ns1:stateOrCountry>
          <ns1:zipCode>60611</ns1:zipCode>
        </address>
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      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-12168</form13FFileNumber>
      <provideInfoForInstruction5>Y</provideInfoForInstruction5>
      <additionalInformation>This form is being filed by Sheffield Asset Management, L.L.C. ("SAM"), which serves as General Partner of Sheffield Partners, L.P. and Investment Manager of Sheffield International Partners Master, Ltd. (collectively, the "Funds"), with respect to the shares of common stock directly owned by the Funds.  The members of SAM are Brian J. Feltzin and Craig C. Albert.</additionalInformation>
    </coverPage>
    <signatureBlock>
      <name>Scott Perlen</name>
      <title>Chief Financial Offer and Chief Compliance Officer</title>
      <phone>312-506-6862</phone>
      <signature>/s/  Scott Perlen</signature>
      <city>Chicago</city>
      <stateOrCountry>IL</stateOrCountry>
      <signatureDate>02-14-2018</signatureDate>
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