<SEC-DOCUMENT>0000904454-21-000303.txt : 20210308
<SEC-HEADER>0000904454-21-000303.hdr.sgml : 20210308
<ACCEPTANCE-DATETIME>20210308190826
ACCESSION NUMBER:		0000904454-21-000303
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210305
FILED AS OF DATE:		20210308
DATE AS OF CHANGE:		20210308

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Abdiel Capital LP
		CENTRAL INDEX KEY:			0001362771
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38897
		FILM NUMBER:		21723559

	BUSINESS ADDRESS:	
		STREET 1:		C/O ABDIEL CAPITAL ADVISORS, LP
		STREET 2:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016
		BUSINESS PHONE:		646-496-9202

	MAIL ADDRESS:	
		STREET 1:		C/O ABDIEL CAPITAL ADVISORS, LP
		STREET 2:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Abdiel Qualified Master Fund LP
		CENTRAL INDEX KEY:			0001508239
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38897
		FILM NUMBER:		21723560

	BUSINESS ADDRESS:	
		STREET 1:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016
		BUSINESS PHONE:		646-496-9351

	MAIL ADDRESS:	
		STREET 1:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Moran Colin T.
		CENTRAL INDEX KEY:			0001659198

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38897
		FILM NUMBER:		21723557

	MAIL ADDRESS:	
		STREET 1:		410 PARK AVE, SUITE 930
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Abdiel Capital Advisors, LP
		CENTRAL INDEX KEY:			0001578684
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38897
		FILM NUMBER:		21723558

	BUSINESS ADDRESS:	
		STREET 1:		90 PARK AVENUE
		STREET 2:		29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016
		BUSINESS PHONE:		646-496-9240

	MAIL ADDRESS:	
		STREET 1:		90 PARK AVENUE
		STREET 2:		29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

	FORMER NAME:	
		FORMER CONFORMED NAME:	Abdiel Capital Advisors, LLC
		DATE OF NAME CHANGE:	20130606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Abdiel Capital Management, LLC
		CENTRAL INDEX KEY:			0001659179
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38897
		FILM NUMBER:		21723561

	BUSINESS ADDRESS:	
		STREET 1:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016
		BUSINESS PHONE:		646-496-9203

	MAIL ADDRESS:	
		STREET 1:		90 PARK AVENUE, 29TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10016

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Fastly, Inc.
		CENTRAL INDEX KEY:			0001517413
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				275411834
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		475 BRANNAN
		STREET 2:		SUITE 300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94107
		BUSINESS PHONE:		415-525-3481

	MAIL ADDRESS:	
		STREET 1:		475 BRANNAN
		STREET 2:		SUITE 300
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Skycache, Inc.(DE)
		DATE OF NAME CHANGE:	20110405
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-03-05</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001517413</issuerCik>
        <issuerName>Fastly, Inc.</issuerName>
        <issuerTradingSymbol>FSLY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001659179</rptOwnerCik>
            <rptOwnerName>Abdiel Capital Management, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABDIEL CAPITAL</rptOwnerStreet1>
            <rptOwnerStreet2>90 PARK AVENUE, 29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001508239</rptOwnerCik>
            <rptOwnerName>Abdiel Qualified Master Fund LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABDIEL CAPITAL</rptOwnerStreet1>
            <rptOwnerStreet2>90 PARK AVENUE, 29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001362771</rptOwnerCik>
            <rptOwnerName>Abdiel Capital LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABDIEL CAPITAL</rptOwnerStreet1>
            <rptOwnerStreet2>90 PARK AVENUE, 29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001578684</rptOwnerCik>
            <rptOwnerName>Abdiel Capital Advisors, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABDIEL CAPITAL</rptOwnerStreet1>
            <rptOwnerStreet2>90 PARK AVENUE, 29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001659198</rptOwnerCik>
            <rptOwnerName>Moran Colin T.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ABDIEL CAPITAL</rptOwnerStreet1>
            <rptOwnerStreet2>90 PARK AVENUE, 29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10849869</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Funds</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Consists of 10,524,183 shares held by Abdiel Qualified Master Fund, LP (&quot;AQMF&quot;) and 325,686 shares held by Abdiel Capital, LP (&quot;ACLP&quot;) (together, the &quot;Funds&quot;).</footnote>
        <footnote id="F2">Abdiel Capital Management, LLC is the general partner of AQMF and ACLP and Abdiel Capital Advisors, LP serves as the investment manager of AQMF and ACLP. Colin T. Moran is the managing member of Abdiel Capital Management, LLC and Abdiel Capital Partners, LLC, which is the general partner of Abdiel Capital Advisors, LP.  By virtue of the foregoing relationships, each of the reporting persons may be deemed to beneficially own the securities held by AQMF and ACLP.  Each reporting person disclaims beneficial ownership of such securities, except to the extent of its or his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Qualified Master Fund LP</signatureName>
        <signatureDate>2021-03-08</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC, general partner of Abdiel Capital LP</signatureName>
        <signatureDate>2021-03-08</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Colin T. Moran as managing member of Abdiel Capital Management, LLC</signatureName>
        <signatureDate>2021-03-08</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Colin T. Moran as managing member of Abdiel Capital Partners, LLC, general partner of Abdiel Capital Advisors, LP</signatureName>
        <signatureDate>2021-03-08</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Colin T. Moran, individually</signatureName>
        <signatureDate>2021-03-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
