-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 T6QahlFbpBBz5xmiT4A6IOeeG67Y8RVz4FFox2m6KC45wHNeR2teW/f3pLXzwjXR
 dWA/izIxqE5MRSOlylSrGQ==

<SEC-DOCUMENT>0000930413-07-008923.txt : 20071121
<SEC-HEADER>0000930413-07-008923.hdr.sgml : 20071121
<ACCEPTANCE-DATETIME>20071121170428
ACCESSION NUMBER:		0000930413-07-008923
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071115
FILED AS OF DATE:		20071121
DATE AS OF CHANGE:		20071121

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHIMERA INVESTMENT CORP
		CENTRAL INDEX KEY:			0001409493
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				260630461
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0607

	BUSINESS ADDRESS:	
		STREET 1:		1211 AVENUE OF THE AMERICAS
		STREET 2:		SUITE 2902
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		212-696-0100

	MAIL ADDRESS:	
		STREET 1:		1211 AVENUE OF THE AMERICAS
		STREET 2:		SUITE 2902
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KEENAN PAUL A
		CENTRAL INDEX KEY:			0001419224

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33796
		FILM NUMBER:		071263894

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		212-696-0100

	MAIL ADDRESS:	
		STREET 1:		1211 AVENUE OF THE AMERICAS
		STREET 2:		SUITE 2902
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>c51388_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-11-15</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001409493</issuerCik>
        <issuerName>CHIMERA INVESTMENT CORP</issuerName>
        <issuerTradingSymbol>CIM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001419224</rptOwnerCik>
            <rptOwnerName>KEENAN PAUL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1211 AVENUE OF THE AMERICAS</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 2902</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Comon Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Paul A. Keenan</signatureName>
        <signatureDate>2007-11-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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