-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 LykeEVJRHdJzz/He+ZYezXv99L3CZpndt+t3P2HQKOd4hAD3lDcj/H9FgRXzizxl
 8heo1BlP/ANB2cGs/GmdKg==

<SEC-DOCUMENT>0000350750-06-000014.txt : 20060425
<SEC-HEADER>0000350750-06-000014.hdr.sgml : 20060425
<ACCEPTANCE-DATETIME>20060425111432
ACCESSION NUMBER:		0000350750-06-000014
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060421
FILED AS OF DATE:		20060425
DATE AS OF CHANGE:		20060425

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BAIRNCO CORP /DE/
		CENTRAL INDEX KEY:			0000350750
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS, MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS [2821]
		IRS NUMBER:				133057520
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 PRIMERA BLVD
		STREET 2:		STE 432
		CITY:			LAKE MARY
		STATE:			FL
		ZIP:			32746
		BUSINESS PHONE:		4078752222

	MAIL ADDRESS:	
		STREET 1:		300 PRIMERA BLVD
		STREET 2:		STE 432
		CITY:			LAKE MARY
		STATE:			FL
		ZIP:			32746

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WOLF JAMES A
		CENTRAL INDEX KEY:			0001202856

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08120
		FILM NUMBER:		06776993

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		4078752222

	MAIL ADDRESS:	
		STREET 1:		BAIRNCO CORP
		STREET 2:		300 PRIMERA BLVD STE 432
		CITY:			LAKE MARY
		STATE:			FL
		ZIP:			32746
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-04-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000350750</issuerCik>
        <issuerName>BAIRNCO CORP /DE/</issuerName>
        <issuerTradingSymbol>BZ</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001202856</rptOwnerCik>
            <rptOwnerName>WOLF JAMES A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BAIRNCO CORP</rptOwnerStreet1>
            <rptOwnerStreet2>300 PRIMERA BLVD STE 432</rptOwnerStreet2>
            <rptOwnerCity>LAKE MARY</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32746</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Purchase Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.61</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-04-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.61</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">1,500 purchase options granted with various exercise dates and expiration dates.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>James A. Wolf</signatureName>
        <signatureDate>2006-04-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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