<SEC-DOCUMENT>0001188444-16-000002.txt : 20160106
<SEC-HEADER>0001188444-16-000002.hdr.sgml : 20160106
<ACCEPTANCE-DATETIME>20160106183850
ACCESSION NUMBER:		0001188444-16-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160104
FILED AS OF DATE:		20160106
DATE AS OF CHANGE:		20160106

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			K12 INC
		CENTRAL INDEX KEY:			0001157408
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-EDUCATIONAL SERVICES [8200]
		IRS NUMBER:				954774688
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		2300 CORPORATE PARK DRIVE
		STREET 2:		SUITE 200
		CITY:			HERNDON
		STATE:			VA
		ZIP:			20171
		BUSINESS PHONE:		7034837000

	MAIL ADDRESS:	
		STREET 1:		2300 CORPORATE PARK DRIVE
		STREET 2:		SUITE 200
		CITY:			HERNDON
		STATE:			VA
		ZIP:			20171

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Marshall Christopher P
		CENTRAL INDEX KEY:			0001440008

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328276

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Trudeau Robert
		CENTRAL INDEX KEY:			0001343722

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328277

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DREW JOHN
		CENTRAL INDEX KEY:			0001188456

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328278

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KIMBALL RICK
		CENTRAL INDEX KEY:			0001197937

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328279

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HOAG JAY C
		CENTRAL INDEX KEY:			0001082906

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328280

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			REYNOLDS JON Q JR
		CENTRAL INDEX KEY:			0001188444

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33883
		FILM NUMBER:		161328281

	MAIL ADDRESS:	
		STREET 1:		528 RAMONA STREET
		CITY:			PALO ALTO
		STATE:			CA
		ZIP:			94301
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-01-04</periodOfReport>

    <issuer>
        <issuerCik>0001157408</issuerCik>
        <issuerName>K12 INC</issuerName>
        <issuerTradingSymbol>LRN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001188444</rptOwnerCik>
            <rptOwnerName>REYNOLDS JON Q JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001082906</rptOwnerCik>
            <rptOwnerName>HOAG JAY C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001197937</rptOwnerCik>
            <rptOwnerName>KIMBALL RICK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001188456</rptOwnerCik>
            <rptOwnerName>DREW JOHN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001343722</rptOwnerCik>
            <rptOwnerName>Trudeau Robert</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001440008</rptOwnerCik>
            <rptOwnerName>Marshall Christopher P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TECHNOLOGY CROSSOVER VENTURES</rptOwnerStreet1>
            <rptOwnerStreet2>528 RAMONA STREET</rptOwnerStreet2>
            <rptOwnerCity>PALO ALTO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94301</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>May be part of a 13(d) group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-01-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11696</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11696</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19536</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>TCV VII Management, L.L.C.</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2617727</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>TCV VII, L.P.</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1359447</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>TCV VII (A), L.P.</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>22826</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>TCV Member Fund, L.P.</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares are restricted and will vest as follows: one-third of the shares will vest on December 15, 2016, December 15, 2017, and December 15, 2018, respectively.</footnote>
        <footnote id="F2">These RSAs are directly held by Jon Q. Reynolds, Jr. Mr. Reynolds has the sole voting and dispositive power over the shares; however, TCV VII Management, L.L.C. (&quot;TCV VII Management&quot;) owns 100% of the pecuniary interest therein. Jon Q. Reynolds, Jr., Jay C. Hoag, Richard H. Kimball, John L. Drew, Robert W. Trudeau and Christopher P. Marshall (the &quot;TCM Members&quot;) are members of TCV VII Management, but each disclaims beneficial ownership of such RSA and the underlying shares of the issuer's common stock except to the extent of their pecuniary interest therein.</footnote>
        <footnote id="F3">These shares are directly held by TCV VII Management.  The TCM Members are members of TCV VII Management but each disclaims beneficial ownership of such shares except to the extent of their pecuniary interest therein.</footnote>
        <footnote id="F4">These securities are directly held by TCV VII, L.P.  The TCM Members and Timothy P. McAdam, John C. Rosenberg and David L. Yuan (collectively, the &quot;TCM VII Directors&quot;) are Class A Directors of Technology Crossover Management VII, Ltd. (&quot;Management VII&quot;) and limited partners of Technology Crossover Management VII, L.P. (&quot;TCM VII&quot;) .  Management VII is the general partner of TCM VII, which is the general partner of TCV VII, L.P.  The TCM VII Directors, Management VII and TCM VII may be deemed to beneficially own the securities held by TCV VII, L.P., but each of the TCM VII Directors, Management VII and TCM VII disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.</footnote>
        <footnote id="F5">These securities are directly held by TCV VII (A), L.P.  The TCM VII Directors are Class A Directors of Management VII and limited partners of TCM VII .  Management VII is the general partner of TCM VII, which is the general partner of TCV VII (A), L.P.  The TCM VII Directors, Management VII and TCM VII may be deemed to beneficially own the securities held by TCV VII (A), L.P., but each of the TCM VII Directors, Management VII and TCM VII disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.</footnote>
        <footnote id="F6">These securities are directly held by TCV Member Fund, L.P.  (&quot;TCV MF&quot;).  The TCM VII Directors are Class A Directors of Management VII, which is a general partner of TCV MF, and limited partners of TCV MF.  The TCM VII Directors and Management VII may be deemed to beneficially own the securities held by TCV MF, but the Management VII Directors and Management VII each disclaim beneficial ownership of such securities and any shares of Common Stock that may be received upon the conversion or exercise of such securities except to the extent of their pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for Jon Q. Reynolds, Jr.</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for Jay C. Hoag</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for Richard H. Kimball</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for John L. Drew</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for Robert W. Trudeau</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Frederic D. Fenton, Authorized signatory for Christopher P. Marshall</signatureName>
        <signatureDate>2016-01-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
