GATX officer Robert C. Lyons proposes $2.28M sale

The notice identifies an option exercise under a registered plan and lists cash as the payment method.

Available on EDGAR 11/03/2026 - 04:30 PM EST Accepted by SEC EDGAR 11/03/2026 - 04:29 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

GATX Corporation officer and director Robert C. Lyons reported a proposed sale of 12,265 common shares, with an aggregate market value of $2,281,308.40. The notice lists November 3, 2026 as the approximate sale date and 34,900,000 shares outstanding. It states the shares were acquired through exercise of options under a registered plan, with cash listed as payment.

Key Figures

Common shares proposed for sale: 12,265 shares Aggregate market value: $2,281,308.40 Shares outstanding: 34,900,000 shares

3 metrics

Common shares proposed for sale 12,265 shares Proposed sale by Robert C. Lyons

Aggregate market value $2,281,308.40 Proposed sale

Shares outstanding 34,900,000 shares As listed in the notice

Key Terms

Rule 144, Exercise of Options Under a Registered Plan, registered plan

3 terms

Rule 144 regulatory

"sales required by paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Exercise of Options Under a Registered Plan financial

"Exercise of Options Under a Registered Plan"

registered plan financial

"Exercise of Options Under a Registered Plan"

A registered plan is a savings or investment account that a government recognizes for special tax treatment and rules, such as limits on how much you can put in and conditions for withdrawals. For investors it matters because those rules change how much of your gains are taxed, how quickly your money can be accessed and what strategies make sense — like a labeled jar that gives tax breaks but comes with rules about when and how you can take the money out.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is the reported value and date of Robert C. Lyons's proposed GATX sale?

The notice gives an aggregate market value of $2,281,308.40 and lists November 3, 2026 as the approximate sale date for 12,265 common shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001204288
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	GATX CORPORATION
SEC File Number	001-02328
Address of Issuer	233 South Wacker Drive Chicago ILLINOIS 60606-7147
Phone	(312) 621-6200
Name of Person for Whose Account the Securities are To Be Sold	ROBERT C LYONS
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	12265	2281308.40	34900000	11/03/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/03/2026	Exercise of Options Under a Registered Plan	Issuer			12265	11/03/2026	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	11/03/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Robert C. Lyons
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)