<SEC-DOCUMENT>0001246991-19-000183.txt : 20191113
<SEC-HEADER>0001246991-19-000183.hdr.sgml : 20191113
<ACCEPTANCE-DATETIME>20191113094455
ACCESSION NUMBER:		0001246991-19-000183
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20191111
FILED AS OF DATE:		20191113
DATE AS OF CHANGE:		20191113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			JOHNSTON PETER D
		CENTRAL INDEX KEY:			0001337218

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13087
		FILM NUMBER:		191212003

	MAIL ADDRESS:	
		STREET 1:		BOSTON PROPERTIES, INC.
		STREET 2:		901 NEW YORK AVENUE, NW
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20001

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BOSTON PROPERTIES INC
		CENTRAL INDEX KEY:			0001037540
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				042473675
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		SUITE 1900
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		6172363300

	MAIL ADDRESS:	
		STREET 1:		800 BOYLSTON STREET
		STREET 2:		SUITE 1900
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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        <issuerName>BOSTON PROPERTIES INC</issuerName>
        <issuerTradingSymbol>BXP</issuerTradingSymbol>
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            <rptOwnerName>JOHNSTON PETER D</rptOwnerName>
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            <rptOwnerStreet1>C/O BOSTON PROPERTIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2200 PENNSYLVANIA AVENUE, NW</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>20037</rptOwnerZipCode>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
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            <officerTitle>Executive Vice President</officerTitle>
            <otherText></otherText>
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    <derivativeTable>
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                <value>2021-01-28</value>
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    <footnotes>
        <footnote id="F1">In (1) January 2014, the Issuer paid a special dividend of $2.25 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2013, (2) January 2015, the Issuer paid aspecial dividend of $4.50 per share of Common Stock to all stockholders of record as of the close of business on December 31, 2014 and (3) January 2016, the Issuer paid a special dividend of $1.25 per share ofCommon Stock to all stockholders of record as of the close of business on December 31, 2015. In connection with these special dividends, the Issuer's Board of Directors adjusted all options that were awarded,but not exercised, prior to the ex-dividend date for each special dividend to account for the effect of each special dividend. The number of shares subject to each such option was increased and the exercise price correspondingly decreased such that each option had the same fair value to the holder before and after giving effect to the payment of each special dividend.</footnote>
        <footnote id="F2">Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 49 from 1,446 to 1,495 in January 2015 and (2) 14 from 1,495 to 1,509 in January 2016 and the per share exercise price was correspondingly decreased.</footnote>
        <footnote id="F3">Includes an aggregate of 235.65047 shares which the Reporting Person acquired in July 2017, January 2018, July 2018, January 2019 and July 2019 pursuant to the Boston Properties, Inc. 1999 Non-Qualified Employee Stock Purchase Plan.</footnote>
        <footnote id="F4">Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 157 from 7,144 to 7,301 in January 2014, (2) 251 from 7,301 to 7,552 in January2015 and (3) 73 from 7,552 to 7,625 in January 2016 and the per share exercise price was correspondingly decreased.</footnote>
        <footnote id="F5">Pursuant to the adjustments described in Footnote 1, the number of shares underlying Mr. Johnston's options increased by (1) 195 from 8,851 to 9,046 in January 2014, (2) 311 from 9,046 to 9,357 in January2015 and (3) 91 from 9,357 to 9,448 in January 2016 and the per share exercise price was correspondingly decreased.</footnote>
        <footnote id="F6">Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $137.05 to $138.04, inclusive. The Reporting Person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F7">Represents the weighted average sale price. These shares were sold in multiple transactions at sale prices ranging from $138.15 to $138.35, inclusive. The Reporting Person undertakes to provide upon request by the U.S. Securities and Exchange Commission staff, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.</footnote>
        <footnote id="F8">The option vested in four equal annual installments beginning on January 15, 2012.</footnote>
        <footnote id="F9">The option vested in four equal annual installments beginning on January 15, 2013.</footnote>
        <footnote id="F10">The option vested in four equal annual installments beginning on January 15, 2014.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kelli A. DiLuglio, as Attorney-in-Fact</signatureName>
        <signatureDate>2019-11-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
