-----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,
 BO5lZt/qC7JPUiurkhphAjlr5c1mh4ciYtKkD8j4Z7oeGpk89mde03pCYV1nRkgX
 FBCMqNf5Kaycfg5Drom0ow==

<SEC-DOCUMENT>0001104659-10-013528.txt : 20100310
<SEC-HEADER>0001104659-10-013528.hdr.sgml : 20100310
<ACCEPTANCE-DATETIME>20100310164736
ACCESSION NUMBER:		0001104659-10-013528
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100308
FILED AS OF DATE:		20100310
DATE AS OF CHANGE:		20100310

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Keneally Timothy P
		CENTRAL INDEX KEY:			0001385765

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33494
		FILM NUMBER:		10671067

	MAIL ADDRESS:	
		STREET 1:		ONE NORTHFIELD PLAZA
		STREET 2:		STE. 480
		CITY:			NORTHFIELD
		STATE:			IL
		ZIP:			60093

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KAPSTONE PAPER & PACKAGING CORP
		CENTRAL INDEX KEY:			0001325281
		STANDARD INDUSTRIAL CLASSIFICATION:	PAPER MILLS [2621]
		IRS NUMBER:				202699372
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O STONE-KAPLAN INVESTMENTS, LLC
		STREET 2:		ONE NORTHFIELD PLAZA, SUITE 480
		CITY:			NORTHFIELD
		STATE:			IL
		ZIP:			60093
		BUSINESS PHONE:		847-441-0929

	MAIL ADDRESS:	
		STREET 1:		C/O STONE-KAPLAN INVESTMENTS, LLC,
		STREET 2:		ONE NORTHFIELD PLAZA, SUITE 480
		CITY:			NORTHFIELD
		STATE:			IL
		ZIP:			60093

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	KapStone Paper & Packaging CORP
		DATE OF NAME CHANGE:	20070104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Stone Arcade Acquisition CORP
		DATE OF NAME CHANGE:	20050428
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-03-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001325281</issuerCik>
        <issuerName>KAPSTONE PAPER &amp; PACKAGING CORP</issuerName>
        <issuerTradingSymbol>KS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001385765</rptOwnerCik>
            <rptOwnerName>Keneally Timothy P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE NORTHFIELD PLAZA</rptOwnerStreet1>
            <rptOwnerStreet2>STE. 480</rptOwnerStreet2>
            <rptOwnerCity>NORTHFIELD</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60093</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <transactionDate>
                <value>2010-03-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.0574</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>28600</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price is a weighted average price. The reporting person will provide any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within a range.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Timothy P. Keneally by Power of Attorney</signatureName>
        <signatureDate>2010-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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