<SEC-DOCUMENT>0001441683-20-000080.txt : 20200702
<SEC-HEADER>0001441683-20-000080.hdr.sgml : 20200702
<ACCEPTANCE-DATETIME>20200702160951
ACCESSION NUMBER:		0001441683-20-000080
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200701
FILED AS OF DATE:		20200702
DATE AS OF CHANGE:		20200702

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Biddle Albert G.W. III
		CENTRAL INDEX KEY:			0001707248

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38098
		FILM NUMBER:		201009371

	MAIL ADDRESS:	
		STREET 1:		11955 DEMOCRACY DRIVE
		STREET 2:		SUITE 1700
		CITY:			RESTON
		STATE:			VA
		ZIP:			20190

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			APPIAN CORP
		CENTRAL INDEX KEY:			0001441683
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				541956084
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7950 JONES BRANCH DRIVE
		CITY:			TYSONS
		STATE:			VA
		ZIP:			22102
		BUSINESS PHONE:		703-442-8844

	MAIL ADDRESS:	
		STREET 1:		7950 JONES BRANCH DRIVE
		CITY:			TYSONS
		STATE:			VA
		ZIP:			22102
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_159372053894909.xml
<DESCRIPTION>FORM 4
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            <rptOwnerStreet2>7950 JONES BRANCH DRIVE</rptOwnerStreet2>
            <rptOwnerCity>MCLEAN</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>22102</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
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            <otherText></otherText>
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                    <footnoteId id="F15"/>
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                    <footnoteId id="F16"/>
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                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
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                <transactionShares>
                    <value>532</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>52.25</value>
                    <footnoteId id="F17"/>
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                <transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>I</value>
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                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F16"/>
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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-07-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
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            <transactionAmounts>
                <transactionShares>
                    <value>207</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>52.85</value>
                    <footnoteId id="F18"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20479</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F16"/>
                </natureOfOwnership>
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    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares were granted under the Issuer's 2017 Equity Incentive Plan pursuant to the Issuer's Non-Employee Director Compensation Policy approved by the Board of Directors on May 10, 2017.</footnote>
        <footnote id="F2">The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 4, 2019.</footnote>
        <footnote id="F3">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.52 to $51.48, inclusive. The Reporting Person undertakes to provide to Appian Corporation, any security holder of Appian Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnotes (3) through (18).</footnote>
        <footnote id="F4">The reported securities are owned directly by Jack Biddle, Inc. (&quot;JBI&quot;). The Reporting Person is the president of JBI.</footnote>
        <footnote id="F5">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.69 to $52.65, inclusive.</footnote>
        <footnote id="F6">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.69 to $53.09, inclusive.</footnote>
        <footnote id="F7">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.52 to $51.39, inclusive.</footnote>
        <footnote id="F8">The reported securities are owned directly by Southgate Partner I (&quot;SPI&quot;), a family trust established for the benefit of the Reporting Person's child. The Reporting Person is the trustee of SPI.</footnote>
        <footnote id="F9">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.65 to $52.63, inclusive.</footnote>
        <footnote id="F10">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.69 to $53.08, inclusive.</footnote>
        <footnote id="F11">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.49 to $51.34, inclusive.</footnote>
        <footnote id="F12">The reported securities are owned directly by Southgate Partner II (&quot;SPII&quot;), a family trust established for the benefit of the Reporting Person's child. The Reporting Person is the trustee of SPII.</footnote>
        <footnote id="F13">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.65 to $52.63, inclusive.</footnote>
        <footnote id="F14">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.67 to $53.09, inclusive.</footnote>
        <footnote id="F15">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $50.48 to $51.37, inclusive.</footnote>
        <footnote id="F16">The reported securities are owned directly by Southgate Partner III (&quot;SPIII&quot;), a family trust established for the benefit of the Reporting Person's child. The Reporting Person is the trustee of SPIII.</footnote>
        <footnote id="F17">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $51.68 to $52.63, inclusive.</footnote>
        <footnote id="F18">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.69 to $53.09, inclusive.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Angela Patterson, Attorney-in-Fact</signatureName>
        <signatureDate>2020-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
