<SEC-DOCUMENT>0000353184-17-000047.txt : 20170908
<SEC-HEADER>0000353184-17-000047.hdr.sgml : 20170908
<ACCEPTANCE-DATETIME>20170908145315
ACCESSION NUMBER:		0000353184-17-000047
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170905
FILED AS OF DATE:		20170908
DATE AS OF CHANGE:		20170908

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			AIR T INC
		CENTRAL INDEX KEY:			0000353184
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR COURIER SERVICES [4513]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13471
		FILM NUMBER:		171076296

	BUSINESS ADDRESS:	
		STREET 1:		3524 AIRPORT RD
		CITY:			MAIDEN
		STATE:			NC
		ZIP:			28650
		BUSINESS PHONE:		7043772109

	MAIL ADDRESS:	
		STREET 1:		P O BOX 488
		CITY:			DENVER
		STATE:			NC
		ZIP:			28037

	FORMER NAME:	
		FORMER CONFORMED NAME:	AIR TRANSPORTATION HOLDING CO INC
		DATE OF NAME CHANGE:	19920703

	FORMER NAME:	
		FORMER CONFORMED NAME:	ATLANTA EXPRESS AIRLINE CORP
		DATE OF NAME CHANGE:	19840321

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INSIGNIA SYSTEMS INC/MN
		CENTRAL INDEX KEY:			0000875355
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-ADVERTISING [7310]
		IRS NUMBER:				411656308
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8799 BROOKLYN BLVD.
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55445
		BUSINESS PHONE:		7633926200

	MAIL ADDRESS:	
		STREET 1:		8799 BROOKLYN BLVD.
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55445
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-09-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000875355</issuerCik>
        <issuerName>INSIGNIA SYSTEMS INC/MN</issuerName>
        <issuerTradingSymbol>ISIG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000353184</rptOwnerCik>
            <rptOwnerName>AIR T INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P O BOX 488</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>DENVER</rptOwnerCity>
            <rptOwnerState>NC</rptOwnerState>
            <rptOwnerZipCode>28037</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2017-09-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>15316</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.1041</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1818103</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Reporting Person may be deemed to be a member of a Section 13(d) group disclosed in a Schedule 13D filed on behalf of the Reporting Person and the other members of such group on August 18, 2014. The Reporting Persons disclaims beneficial ownership of the shares of Common Stock held by the other members of this Section 13(d) group except to the extent of its pecuniary interest therein. The securities reported herein do not include any securities held by the other members of this Section 13(d) group, as such shares have been reported in a separate form filing under Section 16.</footnote>
        <footnote id="F2">The price in Column 4 is a weighted average price.  The prices actually paid ranged from $1.1 to $1.105.  The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares purchased at each price within the range for all transactions reported in this Form 4 utilizing an average weighted price.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Candice Otey</signatureName>
        <signatureDate>2017-09-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
