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von Falkenhausen Konstantin – ‘4’ for 10/14/22 re: Northern Technologies International Corp.

On:  Monday, 10/17/22, at 4:52pm ET   ·   For:  10/14/22   ·   As:  Director   ·   Accession #:  1526513-22-12   ·   File #:  1-11038

Previous ‘4’:  ‘4’ on 9/6/22 for 9/1/22   ·   Next:  ‘4’ on / for 8/28/23   ·   Latest:  ‘4’ on 9/6/23 for 9/1/23

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

10/17/22  von Falkenhausen Konstantin       4          Director    1:6K   Northern Technologies Int’l Corp. Faber Lori Jean/FA

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      6K 
                Securities by an Insider -- primary_doc.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
 
                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<ownershipDocument>
<schemaVersion> X0306 </schemaVersion>
<documentType> 4 </documentType>
<periodOfReport> 2022-10-14 </periodOfReport>
<notSubjectToSection16> 0 </notSubjectToSection16>
<issuer>
<issuerCik> 0000875582 </issuerCik>
<issuerName> NORTHERN TECHNOLOGIES INTERNATIONAL CORP </issuerName>
<issuerTradingSymbol> NTIC </issuerTradingSymbol>
</issuer>
<reportingOwner>
<reportingOwnerId>
<rptOwnerCik> 0001562252 </rptOwnerCik>
<rptOwnerName> von Falkenhausen Konstantin </rptOwnerName>
</reportingOwnerId>
<reportingOwnerAddress>
<rptOwnerStreet1> 4201 WOODLAND ROAD </rptOwnerStreet1>
<rptOwnerStreet2> PO BOX 69 </rptOwnerStreet2>
<rptOwnerCity> CIRCLE PINES </rptOwnerCity>
<rptOwnerState> MN </rptOwnerState>
<rptOwnerZipCode> 55014 </rptOwnerZipCode>
<rptOwnerStateDescription></rptOwnerStateDescription>
</reportingOwnerAddress>
<reportingOwnerRelationship>
<isDirector> 1 </isDirector>
<isOfficer> 0 </isOfficer>
<isTenPercentOwner> 0 </isTenPercentOwner>
<isOther> 0 </isOther>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value> Common Stock </value>
</securityTitle>
<transactionDate>
<value> 2022-10-14 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value> 6000 </value>
</transactionShares>
<transactionPricePerShare>
<value> 5.125 </value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> A </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 7200 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<derivativeTable>
<derivativeTransaction>
<securityTitle>
<value> Stock Option (right to buy) </value>
</securityTitle>
<conversionOrExercisePrice>
<value> 5.125 </value>
</conversionOrExercisePrice>
<transactionDate>
<value> 2022-10-14 </value>
</transactionDate>
<transactionCoding>
<transactionFormType> 4 </transactionFormType>
<transactionCode> M </transactionCode>
<equitySwapInvolved> 0 </equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value> 6000 </value>
</transactionShares>
<transactionPricePerShare>
<value> 0 </value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value> D </value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F1"/>
</exerciseDate>
<expirationDate>
<value> 2022-11-16 </value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value> Common Stock </value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value> 6000 </value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value> 0 </value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value> D </value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
</derivativeTable>
<footnotes>
<footnote id="F1"> This option fully vested on November 16, 2013. </footnote>
</footnotes>
<ownerSignature>
<signatureName> /s/ Matthew C. Wolsfeld - Attorney-in-fact </signatureName>
<signatureDate> 2022-10-17 </signatureDate>
</ownerSignature>
</ownershipDocument>


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Filing Submission 0001526513-22-000012   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
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