<SEC-DOCUMENT>0001104659-23-072905-index.html : 20230620
<SEC-HEADER>0001104659-23-072905.hdr.sgml : 20230620
<ACCEPTANCE-DATETIME>20230620161735
ACCESSION NUMBER:		0001104659-23-072905
CONFORMED SUBMISSION TYPE:	SC 13D
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20230620
DATE AS OF CHANGE:		20230620
GROUP MEMBERS:		ADAM D. PORTNOY

SUBJECT COMPANY:	

	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
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-56905
		FILM NUMBER:		231025329

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ABP Trust
		CENTRAL INDEX KEY:			0001613450
		IRS NUMBER:				043402206
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		SC 13D

	BUSINESS ADDRESS:	
		STREET 1:		TWO NEWTON PLACE
		STREET 2:		255 WASHINGTON STREET, SUITE 300
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458
		BUSINESS PHONE:		617-796-8390

	MAIL ADDRESS:	
		STREET 1:		TWO NEWTON PLACE
		STREET 2:		255 WASHINGTON STREET, SUITE 300
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02458

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ABT Trust
		DATE OF NAME CHANGE:	20160121

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Reit Management & Research Trust
		DATE OF NAME CHANGE:	20140711
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D
<SEQUENCE>1
<FILENAME>tm2319052d1_sc13d.htm
<DESCRIPTION>SC 13D
<TEXT>
Document 1 - file: tm2319052d1_sc13d.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>tm2319052d1_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: tm2319052d1_ex99-1.htm

</DOCUMENT>
</SEC-DOCUMENT>