-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VoGA0nN+0QNQ9/8c2jpfhNMZKt53tVyo6vOa11ljSWi4xqxY0ubKqSXFPdbk7Mpz
 XZe3brRTYUPmYw0i2wkpug==

<SEC-DOCUMENT>0001019056-08-000506.txt : 20080408
<SEC-HEADER>0001019056-08-000506.hdr.sgml : 20080408
<ACCEPTANCE-DATETIME>20080408091926
ACCESSION NUMBER:		0001019056-08-000506
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070618
FILED AS OF DATE:		20080408
DATE AS OF CHANGE:		20080408

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TELOS CORP
		CENTRAL INDEX KEY:			0000320121
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				520880974
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		19886 ASHBURN ROAD
		CITY:			ASHBURN
		STATE:			VA
		ZIP:			20147
		BUSINESS PHONE:		7034716000

	MAIL ADDRESS:	
		STREET 1:		19886 ASHBURN ROAD
		CITY:			ASHBURN
		STATE:			VA
		ZIP:			20147

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	C3 INC
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Roark, Rearden & Hamot LLC
		CENTRAL INDEX KEY:			0001319943
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08443
		FILM NUMBER:		08744314

	BUSINESS ADDRESS:	
		STREET 1:		420 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-595-4406

	MAIL ADDRESS:	
		STREET 1:		420 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HAMOT SETH W
		CENTRAL INDEX KEY:			0001071036

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08443
		FILM NUMBER:		08744315

	BUSINESS ADDRESS:	
		STREET 1:		35 HANCVOCK STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02108
		BUSINESS PHONE:		617-595-4406

	MAIL ADDRESS:	
		STREET 1:		420 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			White Bay Capital Management LLC
		CENTRAL INDEX KEY:			0001319558
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08443
		FILM NUMBER:		08744316

	BUSINESS ADDRESS:	
		STREET 1:		237 PARK AVENUE
		STREET 2:		C/O COSTA BRAVA PARTNERSHIP
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		212-692-6395

	MAIL ADDRESS:	
		STREET 1:		237 PARK AVENUE
		STREET 2:		C/O COSTA BRAVA PARTNERSHIP
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Siegel Andrew R
		CENTRAL INDEX KEY:			0001319503

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08443
		FILM NUMBER:		08744317

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		212-692-6395

	MAIL ADDRESS:	
		STREET 1:		237 PARK AVENUE
		STREET 2:		C/O COSTA BRAVA PARTNERSHIP
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Costa Brava Partnership III LP
		CENTRAL INDEX KEY:			0001319959
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08443
		FILM NUMBER:		08744318

	BUSINESS ADDRESS:	
		STREET 1:		420 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		617-595-4400

	MAIL ADDRESS:	
		STREET 1:		420 BOYLSTON STREET
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-06-18</periodOfReport>

    <issuer>
        <issuerCik>0000320121</issuerCik>
        <issuerName>TELOS CORP</issuerName>
        <issuerTradingSymbol>TLSRP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001319503</rptOwnerCik>
            <rptOwnerName>Siegel Andrew R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O COSTA BRAVA PARTNERSHIP III, LP</rptOwnerStreet1>
            <rptOwnerStreet2>237 PARK AVENUE, SUITE 800</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001319558</rptOwnerCik>
            <rptOwnerName>White Bay Capital Management LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O COSTA BRAVA PARTNERSHIP III, LP</rptOwnerStreet1>
            <rptOwnerStreet2>237 PARK AVENUE, SUITE 800</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001071036</rptOwnerCik>
            <rptOwnerName>HAMOT SETH W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ROARK, REARDEN &amp; HAMOT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>420 BOYLSTON STREET, 5F</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001319943</rptOwnerCik>
            <rptOwnerName>Roark, Rearden &amp; Hamot LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>420 BOYLSTON STREET, 5F</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001319959</rptOwnerCik>
            <rptOwnerName>Costa Brava Partnership III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>420 BOYLSTON STREET, 5F</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02116</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>12% Cumulative Exchangeable Redeemable Preferred Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-06-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>70000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>7.85</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>506811</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>12% Cumulative Exchangeable Redeemable Preferred Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14476</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Beneficial ownership is disclaimed by Seth Hamot, Roark, Rearden &amp; Hamot, LLC, White Bay Capital Management, LLC and Andrew R. Siegel.</footnote>
        <footnote id="F2">The Shares are owned by Costa Brava Partnership III, LP. Roark, Rearden &amp; Hamot, LLC is the sole general partner of Costa Brava Partnership III, LP and Seth Hamot is the sole member and manger of Roark, Rearden &amp; Hamot, LLC. Pursuant to a memorandum of understanding between White Bay Capital Management, LLC and Roark, Rearden &amp; Hamot, LLC, White Bay Capital Management, LLC has the right to receive or the power to direect the receipt of dividends from or the proceeds from the sale of, the shares owned by Costa Brava Partnership III, LP.  Mr. Siegel is the sole member and manger of White Bay Capital Management, LLC.</footnote>
        <footnote id="F3">White Bay Capital Management disclaims beneficial ownership.  Costa Brava Partnership III, LP, Roark, Rearden &amp; Hamot, LLC and Seth Hamot have no beneficial ownership in these shares.</footnote>
    </footnotes>

    <remarks>Since June 18, 2007, Seth W. Hamot and Andrew R. Siegel have been serving as Class D Directors of Telos Corporation.</remarks>

    <ownerSignature>
        <signatureName>ANDREW R. SIEGEL, individually and as manager of White Bay Capital Management, LLC.</signatureName>
        <signatureDate>2008-04-07</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>SETH W. HAMOT, individually and as manager of Roark, Rearden &amp; Hamot, LLC, on its own behalf and as General Partner on behalf of  Costa Brava Partnership III, LP</signatureName>
        <signatureDate>2008-04-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----