[Form 4] GREENBRIER COMPANIES INC Insider Trading Activity

Rhea-AI Filing Summary

Greenbrier Companies (GBX) reported an insider transaction by SVP, Chief HR Officer Laurie R. Dornan. On 10/17/2025 and 10/18/2025, Dornan had shares withheld to cover taxes upon RSU vesting, coded “F.” The transactions involved 483 shares at $45.47 and 1,625 shares at $45.27, respectively. Following these withholdings, direct beneficial ownership was 29,613.6126 shares after the first date and 27,988.6126 shares after the second.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Dornan Laurie R

(Last) (First) (Middle)

C/O THE GREENBRIER COMPANIES, INC.

ONE CENTERPOINTE DRIVE, SUITE 200

(Street)

LAKE OSWEGO OR 97035

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
GREENBRIER COMPANIES INC [ GBX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, Chief HR Officer

3. Date of Earliest Transaction (Month/Day/Year)
10/17/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/17/2025		F		483(1)	D	$45.47	29,613.6126	D
Common Stock	10/18/2025		F		1,625(1)	D	$45.27	27,988.6126	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Shares withheld in payment of tax liability incident to the vesting of restricted stock units.

	By: Kim Moore, Attorney-In-Fact For: Laurie R. Dornan	10/20/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did GBX report in this Form 4?

An insider, SVP and Chief HR Officer Laurie R. Dornan, reported share withholdings coded “F” for RSU tax obligations.

How many GBX shares were withheld and at what prices?

483 shares at $45.47 on 10/17/2025 and 1,625 shares at $45.27 on 10/18/2025.

What does transaction code “F” mean here?

Per the note, the shares were withheld to satisfy tax liability incident to the vesting of restricted stock units.

What is the insider’s role at GBX?

Laurie R. Dornan is GBX’s SVP, Chief HR Officer.

What were the ownership levels after each transaction?

Direct beneficial ownership was 29,613.6126 shares after 10/17/2025 and 27,988.6126 shares after 10/18/2025.

Is this an open-market sale?

No. The filing indicates shares were withheld for taxes upon RSU vesting, coded “F,” not an open‑market sale.