[144] GATX Corporation SEC Filing

Rhea-AI Filing Summary

GATX Corporation (GATX) filed a Form 144 reporting a proposed sale of 2,100 common shares through Morgan Stanley Smith Barney LLC on the NYSE, with an aggregate market value of $354,363.03 and 35,600,000 shares outstanding. The securities were acquired and are to be sold on 08/28/2025 following an exercise of options under a registered plan, with payment in cash. The filer reports no securities sold by the account in the prior three months. The filing includes the required representation that the seller is not aware of undisclosed material adverse information about the issuer.

Insights

Financial Analyst

TL;DR: Small insider sale tied to option exercise; immaterial to company valuation.

The Form 144 documents a single proposed sale of 2,100 shares valued at $354,363.03, representing approximately 0.0059% of the reported 35.6 million shares outstanding. The shares were acquired and are being sold on the same date through exercise of registered options, suggesting routine liquidity by an insider rather than a strategic shift. There are no prior sales in the past three months reported in this filing. From a market-impact perspective, the size and nature of the transaction are immaterial to GATX's capitalization or earnings profile.

Compliance/Risk Analyst

TL;DR: Filing appears compliant with Rule 144 disclosures; no red flags disclosed.

The notice includes broker details, acquisition method, payment type, and a seller representation regarding material adverse information, aligning with Rule 144 requirements. The simultaneous acquisition and sale date and indication of payment in cash are documented. The filing reports no aggregated sales in the prior three months. Based solely on the provided content, there are no compliance concerns or indications of undisclosed material information in this submission.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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	2100	354363.03	35600000	08/28/2025	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	08/28/2025	Exercise of options under a registered plan	Issuer			2100	08/28/2025	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

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What does GATX's Form 144 report on the proposed sale of securities?

The Form 144 reports a proposed sale of 2,100 common shares on 08/28/2025 via Morgan Stanley Smith Barney LLC with an aggregate market value of $354,363.03.

How were the shares acquired that are being sold according to the filing?

The shares were acquired by exercise of options under a registered plan on 08/28/2025, and payment for the sale is listed as cash.

Does the filing indicate other sales in the past three months for the seller?

No. The filing states "Nothing to Report" for securities sold during the past three months.

Which broker is handling the proposed sale in the Form 144?

The broker listed is Morgan Stanley Smith Barney LLC, Executive Financial Services, 1 New York Plaza, 8th Floor, New York, NY 10004.

Is there any disclosure of undisclosed material adverse information in the filing?

The signer represents that they do not know of any material adverse information regarding the issuer that has not been publicly disclosed.