[Form 4] GREENBRIER COMPANIES INC Insider Trading Activity

Rhea-AI Filing Summary

Greenbrier Companies (GBX) reported an insider transaction by EVP & President, The Americas, Brian J. Comstock. On 10/17/2025 and 10/18/2025, he had shares withheld to cover taxes upon RSU vesting, coded F (tax withholding). The transactions covered 1,666 shares at $45.47 and 3,824 shares at $45.27, respectively. Following these transactions, his directly held common stock was 30,604.7779 shares.

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^*

Comstock Brian J

(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)
	EVP & President, The Americas

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		1,666(1)	D	$45.47	34,428.7779	D
Common Stock	10/18/2025		F		3,824(1)	D	$45.27	30,604.7779	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: Brian J. Comstock	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 executive Brian J. Comstock report on Form 4?

He reported share withholdings coded F to cover tax liability upon the vesting of restricted stock units.

What were the dates and amounts of the GBX insider transactions?

On 10/17/2025 for 1,666 shares and on 10/18/2025 for 3,824 shares.

At what prices were the GBX tax-withheld shares valued?

Transactions were reported at $45.47 and $45.27 per share.

What is Brian J. Comstock’s role at Greenbrier (GBX)?

He is EVP & President, The Americas.

How many GBX shares did Comstock hold after the reported transactions?

He directly held 30,604.7779 common shares after the reported transactions.

What does transaction code F mean on a Form 4?

It indicates shares were withheld to satisfy tax obligations related to an equity award vesting.