<SEC-DOCUMENT>0001445305-18-000013.txt : 20180122
<SEC-HEADER>0001445305-18-000013.hdr.sgml : 20180122
<ACCEPTANCE-DATETIME>20180122163221
ACCESSION NUMBER:		0001445305-18-000013
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180118
FILED AS OF DATE:		20180122
DATE AS OF CHANGE:		20180122

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Howell Joseph H.
		CENTRAL INDEX KEY:			0001624105

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36773
		FILM NUMBER:		18540164

	MAIL ADDRESS:	
		STREET 1:		2900 UNIVERSITY BLVD.
		CITY:			AMES
		STATE:			IA
		ZIP:			50010

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WORKIVA INC
		CENTRAL INDEX KEY:			0001445305
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				472509828
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2900 UNIVERSITY BLVD.
		CITY:			AMES
		STATE:			IA
		ZIP:			50010
		BUSINESS PHONE:		(515) 817-6100

	MAIL ADDRESS:	
		STREET 1:		2900 UNIVERSITY BLVD.
		CITY:			AMES
		STATE:			IA
		ZIP:			50010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WORKIVA INC.
		DATE OF NAME CHANGE:	20141212

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WORKIVA LLC
		DATE OF NAME CHANGE:	20140701

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	WEBFILINGS LLC
		DATE OF NAME CHANGE:	20091013
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_151665672757021.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-01-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001445305</issuerCik>
        <issuerName>WORKIVA INC</issuerName>
        <issuerTradingSymbol>WK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001624105</rptOwnerCik>
            <rptOwnerName>Howell Joseph H.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2900 UNIVERSITY BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AMES</rptOwnerCity>
            <rptOwnerState>IA</rptOwnerState>
            <rptOwnerZipCode>50010</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive VP</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>257</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21791</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-01-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>220</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>22.10</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21571</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Common Stock</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>593772.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>593772</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By living trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option to Purchase Class A Common Stock</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>12.4</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2018-02-01</value>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2027-01-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5403.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5403</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option to Purchase Class A Common Stock</value>
                <footnoteId id="F3"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>14.74</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2017-02-01</value>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2026-01-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4545.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4545</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option to Purchase Class A Common Stock</value>
                <footnoteId id="F5"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>15.83</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2015-08-12</value>
                <footnoteId id="F6"/>
            </exerciseDate>
            <expirationDate>
                <value>2024-08-11</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>178200.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>178200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares delivered to the issuer for the payment of withholding taxes due upon the vesting of restricted units previously granted.</footnote>
        <footnote id="F2">Each share of Class B Common Stock is convertible, at any time at the election of the holder, into one share of Class A Common Stock. In addition, each share of Class B Common Stock will convert automatically into one share of Class A Common Stock upon (i) the date specified by the holders of at least 66 2/3% of the outstanding shares of Class B Common Stock, (ii) any transfer, except for certain &quot;qualified transfers&quot; (as defined in the Issuer's Certificate of Incorporation) or (iii) upon the death of a natural person holding shares of Class B Common Stock (subject to certain exceptions as defined in the Issuer's Certificate of Incorporation).</footnote>
        <footnote id="F3">Granted pursuant to the 2014 Equity Incentive Plan.</footnote>
        <footnote id="F4">Vests in three equal annual installments commencing on the first anniversary of the grant date.</footnote>
        <footnote id="F5">Granted pursuant to the 2009 Unit Incentive Plan.</footnote>
        <footnote id="F6">Vests as to 25% of the shares on the first anniversary of the grant date and as to 6.25% of the shares at the end of each three-month period thereafter.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Troy M. Calkins as attorney-in-fact for Joseph H. Howell</signatureName>
        <signatureDate>2018-01-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
