8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): June 20, 2007

GATX Corporation

(Exact name of registrant as specified in its charter)

New York (State or other jurisdiction of incorporation)	1-2328 (Commission File Number)	36-1124040 (IRS Employer Identification No.)
500 West Monroe Street Chicago, Illinois (Address of principal executive offices)		60661-3676 (zip code)

(312) 621-6200

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the obligation of the registrant under any of the following provisions:

o Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure

The following information is furnished pursuant to “Regulation FD Disclosure”. Neither this report nor the information contained in Exhibit 99.1 shall be deemed “filed” for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, regardless of any general incorporation language in such filing.

On June 20, 2007, Robert C. Lyons, Senior Vice President and Chief Financial Officer of GATX Corporation (“GATX” or the “Company”) will present an overview of GATX’s operations, included herein as Exhibit 99.1, at the Jefferies Financial Services Conference in New York. The information is also available on GATX’s website at www.gatx.com

Item 9.01. Financial Statements and Exhibits.

     (d) Exhibits

     Overview of GATX’s operations presented at the Jefferies Financial Services Conference in New York on June 20, 2007.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

GATX CORPORATION (Registrant)

/s/ Robert C. Lyons

Robert C. Lyons

Senior Vice-President, Chief
Financial Officer

(Duly Authorized Officer)

Date: June 20, 2007

EXHIBIT INDEX

Exhibit No.	Exhibit Description	Method of Filing
99.1	Overview of GATX’s operations presented at the Jefferies Financial Services Conference in New York on June 20, 2007.	Electronically

EX-99.1

GATX Corporation Jefferies Financial Services Conference June 20, 2007

Forward-Looking Statements This presentation contains statements that may constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 and are subject to the safe harbor provisions of those sections and the Private Securities Litigation Reform Act of 1995. Some of these statements may be identified by words such as "anticipate," "believe," "estimate," "expect," "intend," "predict," "project" or other words and terms of similar meaning. Investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve risks and uncertainties, including those described in GATX's Annual Report on Form 10-K and other filings with the SEC, and that actual results or developments may differ materially from those in the forward-looking statements. Specific factors that might cause actual results to differ from expectations include, but are not limited to, general economic, market, regulatory and political conditions in the rail, marine, industrial and other industries served by GATX and its customers; lease rates, utilization levels and operating costs in GATX's primary asset segments; conditions in the capital markets; changes in GATX's credit ratings; regulatory rulings that may impact the economic value and operating costs of assets; competitive factors in GATX's primary markets including lease pricing and asset availability; changes in loss provision levels within GATX's portfolio; impaired asset charges that may result from changing market conditions or portfolio management decisions implemented by GATX; the outcome of pending or threatened litigation; and other factors. Given these risks and uncertainties, readers are cautioned not to place undue reliance on these forward-looking statements, which reflect management's analysis, judgment, belief or expectation only as of the date hereof. GATX has based these forward-looking statements on information currently available and disclaims any intention or obligation to update or revise these forward-looking statements to reflect subsequent events or circumstances. NYSE: GMT

GATX Corporation GATX Corporation provides lease financing and related services to customers operating rail, marine and other targeted assets GATX also: Provides an attractive risk-adjusted return to shareholders Is an excellent operator focused on providing quality services to customers Provides clear direction and challenging opportunities to employees

GATX Corporate History Founded in 1898 as a railcar lessor Listed on NYSE in 1916 Initiated quarterly dividends in 1919 Paid without interruption since Railcar leasing remains the foundation of GATX

Business Profile Rail Specialty ASC Other Assets 0.79 0.08 0.05 0.08 Strengths & Keys to Success GATX leases long-lived, widely- used assets Railcars - Marine Vessels Locomotives - Industrial Equipment Assets that GATX uniquely understands Assets requiring valuable services that GATX provides Rail 79% Specialty 8% Other 8% ASC* 5% $5.9 billion NBV (assets of continuing operations on and off balance sheet) as of 03/31/07 Asset Mix *American Steamship Company

Rail GATX's largest, most valuable franchise One of the largest railcar and locomotive lessors in North America and the world A leading North American tank car lessor Own, manage or have interest in about 161,000 railcars worldwide Expanding European presence with approximately 41,000 cars Excellent long-term customer relationships Leading service provider to shippers in chemical, petroleum, and food industries Over 1,000 customers creating a strong credit profile Service-intensive business Repair, maintenance, tracking, training, engineering support

GATX Worldwide Fleet General Service Tank Cars High Pressure Tank Cars Specialty Covered Hoppers Gravity Covered Hoppers Open Hoppers & Gondolas Other GATX Worldwide Owned Fleet (excl Spf) 0.4925 0.1117 0.1391 0.1139 0.0793 0.0636 GATX Worldwide Owned Fleet 129,000 railcars as of 12/31/06 Tank Cars 61% (Approximately 60 different types of tank cars) Covered Hoppers 25%

Rail Market Environment & GATX Market Environment Industry-wide order backlog high New car availability limited in near-term Car prices high by historic standards Rail traffic levels showing some weakness GATX Fleet utilization high Lease rates remaining relatively strong Extending lease term on new cars and renewals European business profitable and growing 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 1Q'07 Utilization 0.91 0.93 0.95 0.95 0.93 0.92 0.93 0.95 0.95 0.95 0.96 0.95 0.94 0.91 0.9 0.9 0.93 0.98 0.98 0.99 0.98 GATX North American Fleet Utilization

Specialty Marine Industrial Equipment Aircraft Engines Other Specialty Owned Portfolio 0.4 0.25 0.06 0.29 Specialty focuses primarily on marine and industrial equipment Marine: co-investments primarily in new builds with blue-water shipping pool operators Industrial Equipment Finance: provides tailored equipment leasing solutions to meet the needs of the North American industrial sector Expertise in Portfolio Management and Equipment Management $452 million portfolio of assets managed for 3rd party owners NBV = $487 mm as of 03/31/07 Asset Mix Industrial Equipment 25% Rolls-Royce Joint Venture 6% Marine 40% Other 29%

Marine Blue Water Joint Ventures Partners are shipping pool operators with decades of shipping experience, reputations for outstanding service, and shared investment philosophy Our jointly-owned vessels are a small part of the overall pool of vessels operated by our partners Overlap with GATX's rail customers - major international manufacturing and industrial firms Products Carried: LPG/E/LNG carriers: LPG, Ethylene, Propylene, Butadiene, Vinyl Chloride Monomer, Isoprene, Butylene, Anhydrous Ammonia Chemical parcel tankers: Methanol, Styrene, Benzene, P-xylene, Ethylene Glycol, MBTE, Palm Oil, Soybean Oil, Sunflower Oil, Rapeseed Oil, Caustic Soda, Lubricating Oils, Molasses Bulk carriers ("handy size"): Steel Products, Grain, Pet Coke, Alumina, Cement, Fertilizer, Forestry Products, Coal JV Name Partner Partner Fleet Total Number of Vessels GATX Investment Focus Vessel Type JV Number of Vessels Clipper 4th Clipper Group 250 Chemical Parcel Tankers 14 Clipper 3rd Clipper Group 250 Bulk Carriers 4 Somargas IM Skaugen 44 LPG/E Carriers 6 Cardinal Marine IMC Holdings 80 Chemical Parcel Tankers 6

Marine Current Market Market across all segments is firm to strong Freight rates (charter and day rates) and vessel values are higher than 10-year averages in most segments Termed the "China effect" as demand in China for a broad range of products produced internationally is very high GATX returns are attractive through cycles due to low cost basis in assets

Industrial Equipment Finance (IEF) Major emphasis on equipment values and GATX's expertise/experience in certain asset classes Target industries include: Transportation - Energy Agriculture - Food Processing Manufacturing - Construction Packaging - Automotive Mining Transaction size: $3-$30 million Term: 3-10 years Equipment must be core to the customer and essential use

American Steamship Company (ASC) ASC provides transportation of dry-bulk commodities on the Great Lakes through a fleet of 18 self-unloading vessels Transport a variety of dry-bulk commodities including iron ore pellets, coal, and limestone aggregates ASC has been operating on the Great Lakes for 100 years, joining the GATX family in 1973 2006 acquisition of 6 vessel fleet enhances ability to meet demand on the Lakes

ASC Market 2000 2001 2002 2003 2004 2005 U.S.-Flag Cargo Carriage - Net Tons 114.1 101.9 101.5 94.7 111.1 107.7 2006 Iron Ore Coal Limestone Aggregates Other ASC Commodities Carried - Net Tons 0.4 0.35 0.15 0.03 Approximately 80% of the cargos carried by U.S.-Flag Great Lakes vessels are destined for steel mills Limestone is used by the steel and construction industries Coal is transported to power generating facilities along all five Great Lakes U.S.-Flag Dry-Bulk Cargo Carriage Source: Lake Carriers' Association ASC Commodities Carried 2006 Net Tons (millions) Iron Ore 47% Coal 35% Limestone Aggregates 15% Other 3% 37 million net tons Source: Lake Carriers' Association

Investment Volume (Continuing Operations) 2002 2003 2004 2005 2006 Rail 117.5 249.6 489.9 402.9 533.6 Specialty 327.3 130.9 22.7 92.6 94.1 ASC 0 0 20.6 3.2 127.7 Other 1.7 20.2 1.6 4.5 7.7 $446.5 $400.7 $534.8 $503.2 $763.1 $ Millions

Capitalizing on Strengths Company positioned for more stable, attractive, long-term growth Strengthening global rail franchise Disciplined investment across assets