-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 LfT27uit/hy1f80TtRgAi8vhtFbvNG2lGUp89h0VZFUf1MJUywYqnDh6YaUV2G0p
 HXOTBpZJjXd7bbUtW2QR1Q==

<SEC-DOCUMENT>0000909518-10-000264.txt : 20100416
<SEC-HEADER>0000909518-10-000264.hdr.sgml : 20100416
<ACCEPTANCE-DATETIME>20100416175003
ACCESSION NUMBER:		0000909518-10-000264
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100415
FILED AS OF DATE:		20100416
DATE AS OF CHANGE:		20100416

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sprott Ryan
		CENTRAL INDEX KEY:			0001427322

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34529
		FILM NUMBER:		10755737

	MAIL ADDRESS:	
		STREET 1:		ONE MADISON AVENUE
		STREET 2:		11TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STR Holdings, Inc.
		CENTRAL INDEX KEY:			0001473597
		STANDARD INDUSTRIAL CLASSIFICATION:	UNSUPPORTED PLASTICS FILM & SHEET [3081]
		IRS NUMBER:				271023344
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		10 WATER STREET
		CITY:			ENFIELD
		STATE:			CT
		ZIP:			06082
		BUSINESS PHONE:		860-749-8371

	MAIL ADDRESS:	
		STREET 1:		10 WATER STREET
		CITY:			ENFIELD
		STATE:			CT
		ZIP:			06082

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STR Holdings (New) LLC
		DATE OF NAME CHANGE:	20091001
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>sprott_form4ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-04-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001473597</issuerCik>
        <issuerName>STR Holdings, Inc.</issuerName>
        <issuerTradingSymbol>STRI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001427322</rptOwnerCik>
            <rptOwnerName>Sprott Ryan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10 WATER STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ENFIELD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06082</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, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2010-04-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3412755</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.75</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10591621</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By DLJ Merchant Banking Partners IV, L.P. and its affiliated funds</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Includes 1,768,641 shares sold by DLJ Merchant Banking Partners IV, L.P., 925,711 shares sold by DLJ Offshore Partners IV,
 L.P., 136,017 shares sold by DLJ Merchant Banking  Partners IV (Pacific), L.P. and 582,386 shares sold by MBP IV Plan
 Investors, L.P.</footnote>
        <footnote id="F2">Includes 5,489,049 shares held by DLJ Merchant Banking Partners IV, L.P., 2,872,983 shares held by DLJ Offshore Partners IV,
 L.P., 422,131 shares held by DLJ Merchant Banking Partners IV (Pacific), L.P. and 1,807,458 shares held by MBP IV Plan
 Investors, L.P.</footnote>
        <footnote id="F3">The reporting person is a partner and a member of the Investment Committee of DLJ Merchant Banking Partners IV, L.P. The
 reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interests
 therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Joseph C. Radziewicz, Attorney-in-Fact</signatureName>
        <signatureDate>2010-04-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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