<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-05-05</periodOfReport>

    <issuer>
        <issuerCik>0000822416</issuerCik>
        <issuerName>PULTEGROUP INC/MI/</issuerName>
        <issuerTradingSymbol>PHM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001550667</rptOwnerCik>
            <rptOwnerName>MARSHALL RYAN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3350 PEACHTREE ROAD NORTHEAST</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 150</rptOwnerStreet2>
            <rptOwnerCity>ATLANTA</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>30326</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Exec Officer, President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-05-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6550</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.28</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>276986</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Units</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1079.879</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 401(k) Plan</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares were surrendered to issuer to cover tax obligations on common shares on which the restrictions have lapsed.</footnote>
        <footnote id="F2">On April 3, 2017, .035 units of the PulteGroup, Inc. Stock Fund of the PulteGroup, Inc. 401(k) Plan (&quot;Plan&quot;) were sold to cover the fees on the Plan.</footnote>
        <footnote id="F3">Represents units of the PulteGroup, Inc. Stock Fund (the Fund) of the PulteGroup, Inc. 401(k) Plan. The Fund consists of cash and Common Stock in amounts that vary from time to time. The reporting person's units represent 2,412.568 shares of PulteGroup, Inc. Common Stock held in the Fund as of May 5, 2017.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Todd N. Sheldon, Attorney-in-Fact</signatureName>
        <signatureDate>2017-05-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
