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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 Q5ehrvxM/2hTIerR/c7Dkg==

<SEC-DOCUMENT>0001181431-07-053168.txt : 20070820
<SEC-HEADER>0001181431-07-053168.hdr.sgml : 20070820
<ACCEPTANCE-DATETIME>20070820175549
ACCESSION NUMBER:		0001181431-07-053168
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070816
FILED AS OF DATE:		20070820
DATE AS OF CHANGE:		20070820

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NCI, Inc.
		CENTRAL INDEX KEY:			0001334478
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				203211574
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		11730 PLAZA AMERICA DRIVE
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190
		BUSINESS PHONE:		(703) 707-6900

	MAIL ADDRESS:	
		STREET 1:		11730 PLAZA AMERICA DRIVE
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WAECHTER STEPHEN L
		CENTRAL INDEX KEY:			0001230983

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-51579
		FILM NUMBER:		071068985

	MAIL ADDRESS:	
		STREET 1:		1100 N GLEBE ROAD
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22201
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd170174.xml
<DESCRIPTION>PURCHASE 5000 SHARES
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-08-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001334478</issuerCik>
        <issuerName>NCI, Inc.</issuerName>
        <issuerTradingSymbol>NCIT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001230983</rptOwnerCik>
            <rptOwnerName>WAECHTER STEPHEN L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11730 PLAZA AMERICA DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>RESTON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>20190</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-08-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.86</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Stephen L. Waechter Living Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <remarks>shares purchased by Stephen L. Wachter, Trustee and Deborah K. Waechter, Trustee of the Stephen L. Waechter Living Trust.</remarks>

    <ownerSignature>
        <signatureName>Michele R. Cappello, Attorney in fact</signatureName>
        <signatureDate>2007-08-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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