<SEC-DOCUMENT>0001395404-16-000026.txt : 20160219
<SEC-HEADER>0001395404-16-000026.hdr.sgml : 20160219
<ACCEPTANCE-DATETIME>20160219123152
ACCESSION NUMBER:		0001395404-16-000026
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160219
FILED AS OF DATE:		20160219
DATE AS OF CHANGE:		20160219

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FRANKLIN STREET PROPERTIES CORP /MA/
		CENTRAL INDEX KEY:			0001031316
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				042724223
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		STE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880
		BUSINESS PHONE:		7815571300

	MAIL ADDRESS:	
		STREET 1:		401 EDGEWATER PLACE
		STREET 2:		STE 200
		CITY:			WAKEFIELD
		STATE:			MA
		ZIP:			01880

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FRANKLIN STREET PARTNERS LP
		DATE OF NAME CHANGE:	20010301

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Burke John N
		CENTRAL INDEX KEY:			0001293150

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32470
		FILM NUMBER:		161441047

	MAIL ADDRESS:	
		STREET 1:		175 DERBY STREET
		STREET 2:		SUITE 19
		CITY:			HINGHAM
		STATE:			MA
		ZIP:			02043
</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>2016-02-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001031316</issuerCik>
        <issuerName>FRANKLIN STREET PROPERTIES CORP /MA/</issuerName>
        <issuerTradingSymbol>FSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001293150</rptOwnerCik>
            <rptOwnerName>Burke John N</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>175 DERBY STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 19</rptOwnerStreet2>
            <rptOwnerCity>HINGHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02043</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>2016-02-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>645</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.23</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17459.31</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-02-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.2294</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>17459.31</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>John N. Burke</signatureName>
        <signatureDate>2016-02-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
