<SEC-DOCUMENT>0001140361-17-015363-index.html : 20170410
<SEC-HEADER>0001140361-17-015363.hdr.sgml : 20170410
<ACCEPTANCE-DATETIME>20170410121600
ACCESSION NUMBER:		0001140361-17-015363
CONFORMED SUBMISSION TYPE:	PX14A6G
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20170410
DATE AS OF CHANGE:		20170410
EFFECTIVENESS DATE:		20170410

SUBJECT COMPANY:	

	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:		PX14A6G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15319
		FILM NUMBER:		17752491

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM
		CENTRAL INDEX KEY:			0000919079
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				946207465
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		PX14A6G

	BUSINESS ADDRESS:	
		STREET 1:		400 Q ST
		STREET 2:		SUITE 4800
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95811
		BUSINESS PHONE:		9167953400

	MAIL ADDRESS:	
		STREET 1:		400 Q ST
		STREET 2:		SUITE 4800
		CITY:			SACRAMENTO
		STATE:			CA
		ZIP:			95811
</SEC-HEADER>
<DOCUMENT>
<TYPE>PX14A6G
<SEQUENCE>1
<FILENAME>formpx14a6g.htm
<DESCRIPTION>CALPERS PX14A6G 4-10-2017 (SENIOR HOUSING PROPERTIES TRUST)
<TEXT>
Document 1 - file: formpx14a6g.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image0.jpg
<TEXT>
Document 2 - file: image0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image00001.jpg
<TEXT>
Document 3 - file: image00001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>image00002.jpg
<TEXT>
Document 4 - file: image00002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>image5.jpg
<TEXT>
Document 5 - file: image5.jpg

</DOCUMENT>
</SEC-DOCUMENT>