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GATX 424B3: Shelf registration

GATX Corporation

Filed with the SEC on · accession 0001193125-26-442790

GATX filed a 424B3 (prospectus (offering)) with the SEC on Nov 2, 2026. GATX Corporation filed a preliminary prospectus supplement (424B3) for an offering of senior notes due in the future, with the aggregate principal amount, interest rate, and maturity date left blank pending completion. The stock moved +4.2% by the first close after the filing.

Summary of the filing

GATX Corporation filed a preliminary prospectus supplement (424B3) for an offering of senior notes due in the future, with the aggregate principal amount, interest rate, and maturity date left blank pending completion. The notes are senior unsecured obligations and will be offered through joint book-running managers BofA Securities, Citigroup, and Morgan Stanley.

For details, click here →How to read a 424B3 →

Key details

GABX aggregate principal amount of indebtedness outstanding as of September 30, 2026$2.9B
GABX indebtedness maturing in 2030$1.9B
GABX indebtedness maturing in 2031$500.0M
GABX indebtedness maturing in 2036$500.0M
GABX revolving credit facility (undrawn)$250.0M
IssuerGATX Corporation
Joint book-running managerBofA Securities
Joint book-running managerCitigroup
Joint book-running managerMorgan Stanley
Consolidated joint venture with brookfield infrastructure partners l.p.GABX Leasing LLC
Joint venture partnerBrookfield Infrastructure Partners L.P.

How GATX stock reacted

Close before

$181.14

Oct 30, 2026

First close after

+4.16%

$188.68

5 trading days

+0.88%

$182.74

Since filing

+0.88%

$182.74

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Frequently asked questions

What did GATX file with the SEC on Nov 2, 2026?

GATX filed a 424B3 (Shelf registration). GATX Corporation filed a preliminary prospectus supplement (424B3) for an offering of senior notes due in the future, with the aggregate principal amount, interest rate, and maturity date left blank pending completion. The notes are senior unsecured obligations and will be offered through joint book-running managers BofA Securities, Citigroup, and Morgan Stanley.

What does a shelf registration mean for GATX stock?

New shares dilute existing holders and are often sold at a discount to the market price.

How do I read a 424B3?

The final terms of an offering of shares or bonds. Look at price, number of shares and the discount to the market price. Large offerings dilute existing shareholders.

Why are SEC filings important?

Public companies must tell the SEC about anything that can change their value — results, leadership changes, big deals, new shares, bankruptcy. Filings are the official source, often before the news. A 424B3 (prospectus (offering)): The final terms of an offering of shares or bonds.

How did GATX stock react to this filing?

GATX closed at $181.14 before the filing and $188.68 on Nov 2, 2026 (+4.16%). Five trading days later: $182.74 (+0.88%).

Other GATX SEC filings

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