<SEC-DOCUMENT>0001104659-20-000443.txt : 20200102
<SEC-HEADER>0001104659-20-000443.hdr.sgml : 20200102
<ACCEPTANCE-DATETIME>20200102173026
ACCESSION NUMBER:		0001104659-20-000443
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200102
DATE AS OF CHANGE:		20200102

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIVE STAR SENIOR LIVING INC.
		CENTRAL INDEX KEY:			0001159281
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-SKILLED NURSING CARE FACILITIES [8051]
		IRS NUMBER:				043516029
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-62369
		FILM NUMBER:		20502474

	BUSINESS ADDRESS:	
		STREET 1:		400 CENTRE STREET
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458
		BUSINESS PHONE:		(617) 796 8387

	MAIL ADDRESS:	
		STREET 1:		400 CENTRE STREET
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIVE STAR QUALITY CARE, INC.
		DATE OF NAME CHANGE:	20161006

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIVE STAR QUALITY CARE INC
		DATE OF NAME CHANGE:	20010918

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DIVERSIFIED HEALTHCARE TRUST
		CENTRAL INDEX KEY:			0001075415
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				043445278
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		C/O THE RMR GROUP
		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458
		BUSINESS PHONE:		(617) 796-8350

	MAIL ADDRESS:	
		STREET 1:		C/O THE RMR GROUP
		STREET 2:		TWO NEWTON PL., 255 WASH. ST., STE. 300
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SENIOR HOUSING PROPERTIES TRUST
		DATE OF NAME CHANGE:	19981217
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>a19-28387_2sc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>


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<p align="center" style="margin:0in 0in .0001pt 10.0pt;text-align:center;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, DC 20549</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt 10.0pt;text-align:center;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt 10.0pt;text-align:center;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt 10.0pt;text-align:center;text-indent:-10.0pt;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SCHEDULE 13D/A</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Rule 13d-101)</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO &#167; 240.13d-1(a) AND <br> AMENDMENTS THERETO FILED PURSUANT TO &#167; 240.13d-2(a)</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Under the Securities Exchange Act of 1934 <br> (Amendment No. 1)*</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
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<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FIVE STAR SENIOR LIVING INC.</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name of Issuer)</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Common Stock, $.01 par value</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Title of Class of Securities)</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
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<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">33832D205</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(CUSIP Number)</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="5" face="Times New Roman" style="font-size:17.0pt;">&nbsp;</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Richard W. Siedel, Jr.</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Chief Financial Officer and Treasurer</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Diversified Healthcare Trust</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(formerly known as Senior Housing Properties Trust)</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Two Newton Place, 255 Washington Street, Suite 300</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Newton, MA 02458</font></b></p>
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(617) 796-8350</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name, Address and Telephone Number of Person<br> Authorized to Receive Notices and Communications)</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
<div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
<p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">January 1, 2020</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Date of Event Which Requires Filing of this Statement)<br><br></font></p>
<p style="margin:3.0pt .5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of &#167;&#167;240.13d-1(e), 240.13d-1(f)&nbsp;or 240.13d-1(g), check the following box</font><font size="2" style="font-size:10.0pt;">. </font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
<p style="margin:7.0pt .5in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Note</font></b><font size="2" style="font-size:10.0pt;">. </font><font size="2" style="font-size:10.0pt;">Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See &#167; 240.13d-7 for other parties to whom copies are to be sent.</font></p>
<p style="margin:7.0pt .5in .0001pt;"><font size="1" face="Times New Roman" style="font-size:6.5pt;">*</font><font size="2" style="font-size:10.0pt;">  </font><font size="2" style="font-size:10.0pt;">The remainder of this cover page&nbsp;shall be filled out for a reporting person&#146;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.</font></p>
<p style="margin:7.0pt .5in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information required on the remainder of this cover page&nbsp;shall not be deemed to be &#147;filed&#148; for the purpose of Section&nbsp;18 of the Securities Exchange Act of 1934 (&#147;Act&#148;) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).</font></p>
<p style="margin:0in .5in .0001pt;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP No.   33832D205</font></p>    </td>
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<p align="center" style="margin:4.0pt 0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">13D/A</font></b></p>    </td>
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Page </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">2</font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;"> of 6 Pages<a name="PB_2_073842_7056"></a></font></b></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1.</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Names of Reporting Persons<br>   Diversified Healthcare Trust (formerly known as Senior Housing Properties   Trust)</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2.</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the   Appropriate Box if a Member of a Group </font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font></p>    </td>
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<p style="margin:4.0pt 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3.</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEC Use   Only </font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.</font></p>    </td>
<td width="91%" colspan="6" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Source of   Funds <br>    </font><font size="2" style="font-size:10.0pt;">OO</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="8" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.</font></p>    </td>
<td width="91%" colspan="6" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check if Disclosure of Legal   Proceedings Is Required Pursuant to Item 2(d) or 2(e)&nbsp; </font><font size="2" style="font-size:10.0pt;">&nbsp;&nbsp;&nbsp;</font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="8" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">6.</font></p>    </td>
<td width="91%" colspan="6" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Citizenship or Place of Organization<br>    </font><font size="2" style="font-size:10.0pt;">Maryland</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="8" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="12%" colspan="3" rowspan="6" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.04%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Number of<br>   Shares<br>   Beneficially<br>   Owned by<br>   Each<br>   Reporting<br>   Person With</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:4.46%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7.</font></p>    </td>
<td width="83%" colspan="4" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:83.5%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole   Voting Power <br>    </font><font size="2" style="font-size:10.0pt;">10,691,658</font><font size="1" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="87%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.96%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:4.46%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">8.</font></p>    </td>
<td width="83%" colspan="4" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:83.5%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared   Voting Power</font><font size="2" style="font-size:10.0pt;">  <br>   0</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="87%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.96%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:4.46%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9.</font></p>    </td>
<td width="83%" colspan="4" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:83.5%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Sole   Dispositive Power</font><font size="2" style="font-size:10.0pt;">  <br>   10,691,658 </font></p>    </td>   </tr>
<tr style="page-break-inside:avoid;">
<td width="87%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:87.96%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr height="0">
<td width="23" style="border:none;"></td>
<td width="39" style="border:none;"></td>
<td width="22" style="border:none;"></td>
<td width="32" style="border:none;"></td>
<td width="5" style="border:none;"></td>
<td width="114" style="border:none;"></td>
<td width="236" style="border:none;"></td>
<td width="236" style="border:none;"></td>   </tr> </table>
</div>
<div style="margin:0in 0in .0001pt;"><hr size="1" width="25%" noshade align="left" style="color:black;"></div>
<p style="margin:0in 0in .0001pt;"><font size="1" face="Times New Roman" style="font-size:6.5pt;position:relative;top:-3.0pt;">1</font><font size="2" style="font-size:10.0pt;">&nbsp; On September&nbsp;30, 2019, Five Star Senior Living Inc. effected a reverse stock split pursuant to which every ten shares of common stock, par value $.01 per share, of Five Star Senior Living Inc. were converted and reclassified into one share of common stock, par value $.01 per share, of Five Star Senior Living Inc., subject to the receipt of cash in lieu of fractional shares. The amounts set forth in this Schedule 13D/A are presented after giving effect to that reverse stock split.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<div style="font-family:Times New Roman;">
<p style="margin:0in 0in .0001pt;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
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<td width="33%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:33.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP No.   33832D205</font></p>    </td>
<td width="33%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:33.34%;">
<p align="center" style="margin:4.0pt 0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">13D/A</font></b></p>    </td>
<td width="33%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:33.34%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Page </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">3</font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;"> of 6   Pages</font></b><a name="PB_3_134353_7056"></a></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>
<div align="center">
<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;">
<tr style="page-break-inside:avoid;">
<td width="12%" colspan="3" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:12.04%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="4%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:4.46%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.</font></p>    </td>
<td width="83%" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:83.5%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Shared Dispositive Power</font><font size="2" style="font-size:10.0pt;">  <br>   0</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="5" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">11.</font></p>    </td>
<td width="91%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Aggregate   Amount Beneficially Owned by Each Reporting Person</font><font size="2" style="font-size:10.0pt;">  <br>   10,691,658</font></p>    </td>   </tr>
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<td width="100%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">12.</font></p>    </td>
<td width="91%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check if   the Aggregate Amount in Row (11) Excludes Certain Shares</font><font size="2" style="font-size:10.0pt;">  </font><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">13.</font></p>    </td>
<td width="91%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Percent   of Class Represented by Amount in Row (11)</font><font size="2" style="font-size:10.0pt;">  <br>   33.9%</font></p>    </td>   </tr>
<tr>
<td width="100%" colspan="5" valign="top" style="padding:3.0pt 3.0pt 3.0pt 3.0pt;width:100.0%;">
<p style="margin:4.0pt 0in;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="3%" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:3.32%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="5%" valign="top" style="padding:3.0pt 3.0pt 5.75pt 3.0pt;width:5.58%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">14.</font></p>    </td>
<td width="91%" colspan="3" style="border:none;border-bottom:solid windowtext 1.0pt;padding:3.0pt 3.0pt 5.75pt 3.0pt;width:91.1%;">
<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Type of   Reporting Person </font><font size="2" style="font-size:10.0pt;"><br>   OO</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP No.   33832D205</font></p>    </td>
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<p align="center" style="margin:4.0pt 0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">13D/A</font></b></p>    </td>
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<p align="right" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Page </font></b><b>4</b><b> of 6 Pages<a name="PB_4_133243_3679"></a></b></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This Amendment No.&nbsp;1 (this &#147;Schedule 13D/A&#148;) to the original Schedule 13D filed with the U.S. Securities and Exchange Commission on April&nbsp;5, 2019 (the &#147;Schedule 13D&#148;), is being filed by Diversified Healthcare Trust (formerly known as Senior Housing Properties Trust), a Maryland real estate investment trust (&#147;DHC&#148; or the &#147;Reporting Person&#148;) to report the Reporting Person&#146;s acquisition of additional shares of common stock, par value $.01 per share (&#147;Common Shares&#148;), of Five Star Senior Living Inc. (the &#147;Issuer&#148;) pursuant to the Transaction Agreement, dated April&nbsp;1, 2019, between DHC and the Issuer (the &#147;Transaction Agreement&#148;).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 1.</font></b>&nbsp;&nbsp; <b>Security and Issuer.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The class of equity securities to which this Schedule 13D/A relates is the Common Shares of the Issuer. The Issuer&#146;s principal executive offices are located at 400 Centre Street, Newton, Massachusetts 02458.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 2.</font></b>&nbsp;&nbsp; <b>Identity and Background.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information contained in &#147;Item 2. Identity and Background&#148; contained in the Schedule 13D is not being amended by this Schedule 13D/A.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 3.</font></b>&nbsp;&nbsp; <b>Source and Amount of Funds or Other Consideration.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;Item 3. Source and Amount of Funds or Other Consideration&#148; is hereby amended and restated as follows:</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">See Item 4 below.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">DHC beneficially owns 10,691,658 Common Shares, 10,268,158 of which were acquired by DHC on January&nbsp;1, 2020 pursuant to the Transaction Agreement, 100,000 of which were purchased by DHC as part of an underwritten public offering of Common Shares by the Issuer completed on June&nbsp;21, 2011, 320,000 of which were acquired by DHC pursuant to a lease realignment agreement with the Issuer, entered into on August&nbsp;4, 2009, and 3,500 of which were retained by DHC following its December&nbsp;31, 2001 spinoff of the Issuer.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 4.</font></b>&nbsp;&nbsp; <b>Purpose of Transaction.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;Item 4. Purpose of Transaction&#148; of the Schedule 13D is hereby amended to add the following:</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the Transaction Agreement, effective January&nbsp;1, 2020 (the &#147;Conversion Time&#148;):</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-indent:-.25in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>DHC and the Issuer&#146;s five master leases for all of DHC&#146;s senior living communities that the Issuer leased from DHC as of immediately prior to the Conversion Time, as well as the then existing management agreements and pooling agreements between DHC and the Issuer for DHC&#146;s senior living communities that the Issuer managed for DHC, were terminated and replaced (the &#147;Conversion&#148;), with new management agreements for all of these senior living communities;</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-indent:-.25in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>the Issuer issued 10,268,158 Common Shares to DHC, so that, together with DHC&#146;s then owned Common Shares, DHC now owns 33.9% of the outstanding Common Shares.&#160; In addition, pursuant to a pro rata distribution to holders of DHC&#146;s common shares of beneficial interest declared by DHC on December&nbsp;3, 2019 to its record holders as of December&nbsp;13, 2019 of the right to receive an aggregate of 51.1% of the outstanding Common Shares, the Issuer issued on a pro rata basis to such holders, an aggregate of 16,119,563 Common Shares, subject to cash being paid in lieu of any fractional shares; the noted percentage ownership amounts are post-issuance as of January&nbsp;1, 2020, giving effect to both share issuances, and those share issuances are referred to in this Schedule 13D/A as the &#147;Share Issuances&#148;; and</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt .5in;text-indent:-.25in;"><font size="2" face="Symbol" style="font-size:10.0pt;">&#183;</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>as consideration for the Share Issuances, DHC provided the Issuer with $75 million of additional consideration, by way of its payment or assumption of $75 million in certain of the Issuer&#146;s current and future working capital liabilities, pursuant to the terms of the Transaction Agreement (collectively, with the Conversion and the Share Issuances, the &#147;Restructuring Transactions&#148;).</p>
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<p style="margin:4.0pt 0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP No.   33832D205</font></p>    </td>
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<p align="center" style="margin:4.0pt 0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">13D/A</font></b></p>    </td>
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<p align="right" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Page </font></b><b>5</b><b> of 6 Pages<a name="PB_5_133245_2897"></a></b></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Also effective January&nbsp;1, 2020, the Issuer terminated the credit agreement, pursuant to which DHC had extended to the Issuer a $25 million line of credit in connection with the Transaction Agreement.</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.</font></b>&nbsp;&nbsp; <b>Interest in Securities of the Issuer.</b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#147;Item 5. Interest in Securities of the Issuer&#148; of the Schedule 13D is hereby amended and restated as follows:</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)-(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>The Reporting Person beneficially owns 10,691,658 Common Shares, which represents 33.9% of the issued and outstanding Common Shares as of January&nbsp;1, 2020.&nbsp; DHC has sole power to direct the vote and sole power to dispose or direct the disposition of such Common Shares.</p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Adam D. Portnoy beneficially owns 2,000,115 Common Shares (a portion of which are subject to vesting requirements), which represents approximately 6.3% of the issued and outstanding Common Shares as of January&nbsp;1, 2020 and which are not included in the percentages owned by the Reporting Person.&nbsp; Mr.&nbsp;Portnoy has sole power to direct the vote and sole power to dispose or direct the disposition of 27,332 of such Common Shares.&nbsp; In addition, as president, sole trustee and a beneficial owner of ABP Trust, Mr.&nbsp;Portnoy may be deemed to beneficially own 1,972,783 Common Shares beneficially owned by ABP Trust.&nbsp;1,799,999 of these Common Shares are directly owned by ABP Acquisition LLC (&#147;ABP LLC&#148;), a wholly owned subsidiary of ABP Trust, and 172,784 of these Common Shares are directly owned by ABP Trust.&nbsp; The Reporting Person expressly disclaims any beneficial ownership of the Common Shares beneficially owned by Mr.&nbsp;Portnoy, ABP Trust and ABP LLC.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">To the Reporting Person&#146;s knowledge, the other individuals named in Item 2 above beneficially own an aggregate of 40,215 Common Shares (a portion of which are subject to vesting requirements), which represents less than 1% of the issued and outstanding Common Shares and which are not included in the percentages owned by the Reporting Person.&nbsp; The Reporting Person expressly disclaims any beneficial ownership of these Common Shares. To the Reporting Person&#146;s knowledge, the other individuals named in Item 2 above have sole power to vote or to direct the vote, and to dispose or direct the disposition of, all of the Common Shares they beneficially own.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The percentages of beneficial ownership reported in this Schedule 13D/A are based on 31,542,613 Common Shares outstanding as of January&nbsp;1, 2020, such number of shares being based on information provided by the Issuer.</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>In addition to the transactions described in Item 4 above, on December&nbsp;11, 2019, Jennifer B. Clark, Jennifer F. Francis and Richard W. Siedel,&nbsp;Jr. were granted an aggregate of 6,000 Common Shares under the Issuer&#146;s equity compensation plan (a portion of which are subject to vesting requirements) for services rendered to the Issuer.</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Other than as described in Item 4 above, no other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities covered by this Schedule 13D/A.</p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Not applicable.</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 6.</font></b>&nbsp;&nbsp; <b>Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.</b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information contained in &#147;Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer&#148; contained in the Schedule 13D is not being amended by this Schedule 13D/A.</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 7.</font></b>&nbsp;&nbsp; <b>Material to be Filed as Exhibits.</b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information contained in &#147;Item 7. Material to be Filed as Exhibits&#148; of the Schedule 13D is not being amended by this Schedule 13D/A.</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:27.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">After reasonable inquiry and to the best of my knowledge and belief,&nbsp;I certify that the information set forth in this statement is true, complete and correct.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">January&nbsp;2, 2020</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">DIVERSIFIED HEALTHCARE   TRUST</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Richard W.   Siedel,&nbsp;Jr.</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Richard W.   Siedel,&nbsp;Jr., Chief Financial Officer and Treasurer</font></p>    </td>   </tr>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Attention.</font></i> Intentional misstatements or omissions of fact constitute Federal criminal violations (s<i>ee</i> 18 U.S.C. 1001).</p>
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