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Zell Brandon – ‘4’ for 4/1/20 re: Slack Technologies, Inc.

On:  Friday, 4/3/20, at 5:09pm ET   ·   For:  4/1/20   ·   Accession #:  1764925-20-298   ·   File #:  1-38926

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 4/03/20  Zell Brandon                      4                      1:17K  Slack Technologies, Inc.          Slack Technologies, Inc.

Statement of Changes in Beneficial Ownership of Securities by an Insider   —   Form 4   —   SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 4           Statement of Changes in Beneficial Ownership of     HTML      3K 
                Securities by an Insider --                                      
                wf-form4_158594817869424.xml/3.6


        

This ‘4’ Document is an XML Data File that may be rendered in various formats:

  Form 4    –   Plain Text   –  SEC Website  –  EDGAR System  –    XML Data    –  <?xml?> File
 
 
XML Data rendering:  Statement of Changes in Beneficial Ownership of Securities by an Insider — wf-form4_158594817869424.xml/3.6
 
                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<ownershipDocument>
<schemaVersion> X0306 </schemaVersion>
<documentType> 4 </documentType>
<periodOfReport> 2020-04-01 </periodOfReport>
<notSubjectToSection16> 0 </notSubjectToSection16>
<issuer>
<issuerCik> 0001764925 </issuerCik>
<issuerName> Slack Technologies, Inc. </issuerName>
<issuerTradingSymbol> WORK </issuerTradingSymbol>
</issuer>
<reportingOwner>
<reportingOwnerId>
<rptOwnerCik> 0001775684 </rptOwnerCik>
<rptOwnerName> Zell Brandon </rptOwnerName>
</reportingOwnerId>
<reportingOwnerAddress>
<rptOwnerStreet1> C/O SLACK TECHNOLOGIES, INC. </rptOwnerStreet1>
<rptOwnerStreet2> 500 HOWARD STREET </rptOwnerStreet2>
<rptOwnerCity> SAN FRANCISCO, </rptOwnerCity>
<rptOwnerState> CA </rptOwnerState>
<rptOwnerZipCode> 94105 </rptOwnerZipCode>
<rptOwnerStateDescription></rptOwnerStateDescription>
</reportingOwnerAddress>
<reportingOwnerRelationship>
<isDirector> 0 </isDirector>
<isOfficer> 1 </isOfficer>
<isTenPercentOwner> 0 </isTenPercentOwner>
<isOther> 0 </isOther>
<officerTitle> Chief Accounting Officer </officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value> Class A Common Stock </value>
</securityTitle>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> C </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 4376 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> A </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 172409 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
<nonDerivativeTransaction>
<securityTitle>
<value> Class A Common Stock </value>
</securityTitle>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> S </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
<footnoteId id="F2"/>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1545 </value>
</transactionShares>
<transactionPricePerShare>
<value> 26.32 </value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 170864 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
<nonDerivativeTransaction>
<securityTitle>
<value> Class A Common Stock </value>
</securityTitle>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> S </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
<footnoteId id="F2"/>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 253 </value>
</transactionShares>
<transactionPricePerShare>
<value> 26.32 </value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 170611 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<derivativeTable>
<derivativeTransaction>
<securityTitle>
<value> Restricted Stock Units </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F3"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1563 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F3"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F4"/>
</exerciseDate>
<expirationDate>
<value> 2024-05-10 </value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class B Common Stock </value>
<footnoteId id="F1"/>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1563.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 6250 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Class B Common Stock </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F1"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1563 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> A </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F1"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class A Common Stock </value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1563.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 1563 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Restricted Stock Units </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F3"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1563 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F3"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F5"/>
</exerciseDate>
<expirationDate>
<value> 2025-06-20 </value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class B Common Stock </value>
<footnoteId id="F1"/>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1563.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 12500 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Class B Common Stock </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F1"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1563 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> A </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F1"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class A Common Stock </value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1563.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 3126 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Restricted Stock Units </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F3"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1250 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F3"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F6"/>
</exerciseDate>
<expirationDate>
<value> 2026-04-03 </value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class B Common Stock </value>
<footnoteId id="F1"/>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1250.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 15000 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Class B Common Stock </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F1"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 1250 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> A </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F1"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class A Common Stock </value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 1250.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 4376 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeTransaction>
<securityTitle>
<value> Class B Common Stock </value>
</securityTitle>
<conversionOrExercisePrice>
<footnoteId id="F1"/>
</conversionOrExercisePrice>
<transactionDate>
<value> 2020-04-01 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> C </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value> 4376 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
<footnoteId id="F1"/>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F1"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Class A Common Stock </value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 4376.0 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 0 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
</derivativeTable>
<footnotes>
<footnote id="F1"> Each share of Class B Common Stock is convertible without payment or consideration into one share of Class A Common Stock at the option of the holder and has no expiration date. </footnote>
<footnote id="F2"> Shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs). </footnote>
<footnote id="F3"> Each RSU represents the right to receive one share of Class B Common Stock. </footnote>
<footnote id="F4"> The RSUs are subject to time-based and performance-based vesting criteria. The time-based vesting occurs in 16 quarterly installments commencing on July 1, 2017, subject to the Reporting Person's continued service with the Issuer on each such date. The performance-based criteria was satisfied upon the Issuer's listing and public trading of its Class A Common Stock on June 20, 2019. </footnote>
<footnote id="F5"> The RSUs are subject to time-based and performance-based vesting criteria. The time-based vesting occurs in 16 quarterly installments commencing on July 1, 2018, subject to the Reporting Person's continued service with the Issuer on each such date. The performance-based criteria was satisfied upon the Issuer's listing and public trading of its Class A Common Stock on June 20, 2019. </footnote>
<footnote id="F6"> The RSUs are subject to time-based and performance-based vesting criteria. The time-based vesting occurs in 16 quarterly installments commencing on July 1, 2019, subject to the Reporting Person's continued service with the Issuer on each such date. The performance-based criteria was satisfied upon the Issuer's listing and public trading of its Class A Common Stock on June 20, 2019. </footnote>
</footnotes>
<remarks></remarks>
<ownerSignature>
<signatureName> /s/ David Schellhase, as Attorney-in-Fact </signatureName>
<signatureDate> 2020-04-03 </signatureDate>
</ownerSignature>
</ownershipDocument>


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Filing Submission 0001764925-20-000298   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
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