<SEC-DOCUMENT>0001193125-21-166738-index.html : 20210519
<SEC-HEADER>0001193125-21-166738.hdr.sgml : 20210519
<ACCEPTANCE-DATETIME>20210519171634
ACCESSION NUMBER:		0001193125-21-166738
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20210519
DATE AS OF CHANGE:		20210519

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKSTONE MORTGAGE TRUST, INC.
		CENTRAL INDEX KEY:			0001061630
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				946181186
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14788
		FILM NUMBER:		21941246

	BUSINESS ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		24TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154
		BUSINESS PHONE:		2126550220

	MAIL ADDRESS:	
		STREET 1:		345 PARK AVENUE
		STREET 2:		24TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10154

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CAPITAL TRUST INC
		DATE OF NAME CHANGE:	19980512
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>d127665ddefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: d127665ddefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g127665dsp003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g127665dsp003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g127665dsp004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g127665dsp004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g127665dsp005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g127665dsp005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g127665dsp006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g127665dsp006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g127665g85k09.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g127665g85k09.jpg

</DOCUMENT>
</SEC-DOCUMENT>