<SEC-DOCUMENT>0000040211-17-000055-index.html : 20171019
<SEC-HEADER>0000040211-17-000055.hdr.sgml : 20171019
<ACCEPTANCE-DATETIME>20171019083815
ACCESSION NUMBER:		0000040211-17-000055
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20171019
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20171019
DATE AS OF CHANGE:		20171019

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GATX CORP
		CENTRAL INDEX KEY:			0000040211
		STANDARD INDUSTRIAL CLASSIFICATION:	TRANSPORTATION SERVICES [4700]
		IRS NUMBER:				361124040
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-02328
		FILM NUMBER:		171143719

	BUSINESS ADDRESS:	
		STREET 1:		222 WEST ADAMS STREET
		CITY:			CHICAGO
		STATE:			X1
		ZIP:			60606-5314
		BUSINESS PHONE:		3126216200

	MAIL ADDRESS:	
		STREET 1:		222 WEST ADAMS STREET
		CITY:			CHICAGO
		STATE:			X1
		ZIP:			60606-5314

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GENERAL AMERICAN TRANSPORTATION CORP
		DATE OF NAME CHANGE:	19750722
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>gatx-201709303q17pressrele.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: gatx-201709303q17pressrele.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>a3q17exhibit991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: a3q17exhibit991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image0a04a01a10.jpg
<DESCRIPTION>LOGO
<TEXT>
Document 3 - file: image0a04a01a10.jpg

</DOCUMENT>
</SEC-DOCUMENT>