<SEC-DOCUMENT>0001104659-19-013860-index.html : 20190311
<SEC-HEADER>0001104659-19-013860.hdr.sgml : 20190311
<ACCEPTANCE-DATETIME>20190311162217
ACCESSION NUMBER:		0001104659-19-013860
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20190311
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190311
DATE AS OF CHANGE:		20190311

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SENIOR HOUSING PROPERTIES 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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15319
		FILM NUMBER:		19672589

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a19-6221_18k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a19-6221_18k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a19-6221_1ex99d1.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: a19-6221_1ex99d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g62211mmi001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g62211mmi001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g62211mmi002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g62211mmi002.gif

</DOCUMENT>
</SEC-DOCUMENT>