SEC Info - Roman Michael F - ‘5’ for 12/31/19 re: 3M Co.

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Roman Michael F – ‘5’ for 12/31/19 re: 3M Co.

On: Friday, 1/3/20, at 3:27pm ET · For: 12/31/19 · Accession #: 1127602-20-570 · File #: 1-03285

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

 1/03/20  Roman Michael F                   5                      1:4K   3M Co.                            Restricted Stock Sy… Inc

Annual Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 5 — SEA’34
Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 5           Annual Statement of Changes in Beneficial           HTML      3K 
                Ownership of Securities by an Insider --                         
                form5.xml/3.6

This ‘5’ Document is an XML Data File that may be rendered in various formats:

Form 5 – Plain Text – SEC Website – EDGAR System – XML Data – <?xml?> File

XML Data rendering: Annual Statement of Changes in Beneficial Ownership of Securities by an Insider

<?xml version="1.0" encoding="windows-1252"?>

<ownershipDocument>

<schemaVersion> X0306 </schemaVersion>

<documentType> 5 </documentType>

<periodOfReport> 2019-12-31 </periodOfReport>

<form3HoldingsReported> 0 </form3HoldingsReported>

<form4TransactionsReported> 0 </form4TransactionsReported>

<issuer>

<issuerCik> 0000066740 </issuerCik>

<issuerName> 3M CO </issuerName>

<issuerTradingSymbol> MMM </issuerTradingSymbol>

</issuer>

<reportingOwner>

<reportingOwnerId>

<rptOwnerCik> 0001577544 </rptOwnerCik>

<rptOwnerName> Roman Michael F </rptOwnerName>

</reportingOwnerId>

<reportingOwnerAddress>

<rptOwnerStreet1> 3M CENTER </rptOwnerStreet1>

<rptOwnerStreet2></rptOwnerStreet2>

<rptOwnerCity> ST. PAUL </rptOwnerCity>

<rptOwnerState> MN </rptOwnerState>

<rptOwnerZipCode> 55144-1000 </rptOwnerZipCode>

<rptOwnerStateDescription></rptOwnerStateDescription>

</reportingOwnerAddress>

<reportingOwnerRelationship>

<isDirector> 1 </isDirector>

<isOfficer> 1 </isOfficer>

<officerTitle> Chairman, President & CEO </officerTitle>

</reportingOwnerRelationship>

</reportingOwner>

<nonDerivativeTable>

<nonDerivativeTransaction>

<securityTitle>

<value> Common Stock </value>

</securityTitle>

<transactionDate>

<value> 2019-08-08 </value>

</transactionDate>

<transactionCoding>

<transactionFormType> 5 </transactionFormType>

<transactionCode> G </transactionCode>

<equitySwapInvolved> 0 </equitySwapInvolved>

</transactionCoding>

<transactionTimeliness></transactionTimeliness>

<transactionAmounts>

<transactionShares>

<value> 1000 </value>

</transactionShares>

<transactionPricePerShare>

<value> 0 </value>

</transactionPricePerShare>

<transactionAcquiredDisposedCode>

<value> D </value>

</transactionAcquiredDisposedCode>

</transactionAmounts>

<postTransactionAmounts>

<sharesOwnedFollowingTransaction>

<value> 39246.3325 </value>

</sharesOwnedFollowingTransaction>

</postTransactionAmounts>

<ownershipNature>

<directOrIndirectOwnership>

<value> D </value>

</directOrIndirectOwnership>

</ownershipNature>

</nonDerivativeTransaction>

</nonDerivativeTable>

<footnotes></footnotes>

<ownerSignature>

<signatureName> /s/ Patricia L. Meagher, attorney-in-fact for Michael F. Roman </signatureName>

<signatureDate> 2020-01-03 </signatureDate>

</ownerSignature>

</ownershipDocument>

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Filing Submission 0001127602-20-000570 – Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

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