Trinity Industries director acquires 1,156 stock units

The deferred-fee account is to be settled in cash after Robert C. Biesterfeld Jr.'s retirement.

Rhea-AI Filing Summary

Trinity Industries director Robert C. Biesterfeld Jr. acquired 1,156 Trinity Phantom Stock Units on September 30, 2026, reported at $25.54 per unit. His reported balance after the transaction was 15,820 units.

The units accrued under the Trinity Industries, Inc. Deferred Plan for Directors Fees, with one stock unit corresponding to one share of common stock. The account will be settled in cash after his retirement.

Insider Trade Summary

Grant/Award: 1,156 shares

Grant/Award 1 txn

Insider Biesterfeld Robert C Jr

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Trinity Phantom Stock Units F1	1,156	$25.54	$30K

Holdings After Transaction: Trinity Phantom Stock Units — 15,820 contracts (Direct)

Footnotes (1)

1. F1. The Trinity Phantom Stock Units were accrued under the Trinity Industries, Inc. Deferred Plan for Directors Fees. Stock units are converted at "1 - for - 1" (a rate of one stock unit per one share of Trinity common stock). Settlement of the account will be in cash after the reporting person's retirement.

Key Figures

Phantom Stock Units acquired: 1,156 units Reported value per unit: $25.54 per unit Units following transaction: 15,820 units +1 more

4 metrics

Phantom Stock Units acquired 1,156 units September 30, 2026

Reported value per unit $25.54 per unit Trinity Phantom Stock Units acquired September 30, 2026

Units following transaction 15,820 units Reported balance after the transaction

Conversion ratio 1 stock unit per 1 share Trinity common stock

Key Terms

Trinity Phantom Stock Units, Deferred Plan for Directors Fees, 1 - for - 1

3 terms

Trinity Phantom Stock Units financial

"The Trinity Phantom Stock Units were accrued under"

Deferred Plan for Directors Fees financial

"under the Trinity Industries, Inc. Deferred Plan for Directors Fees"

1 - for - 1 financial

"Stock units are converted at "1 - for - 1""

FAQ

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

How many TRN phantom stock units did Robert C. Biesterfeld Jr. receive?

Robert C. Biesterfeld Jr., a director of Trinity Industries (TRN), acquired 1,156 Trinity Phantom Stock Units on September 30, 2026, reported at $25.54 per unit. His reported balance after the transaction was 15,820 units.

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

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Available on EDGAR 10/01/2026 - 04:19 PM Accepted by SEC EDGAR 10/01/2026 - 04:18 PM Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Biesterfeld Robert C Jr

(Last) (First) (Middle)

14221 N DALLAS PARKWAY

SUITE 1100

(Street)

DALLAS TEXAS 75254

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
TRINITY INDUSTRIES INC [ NYSE/TRN ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2026

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

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

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

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

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
Trinity Phantom Stock Units	$0	09/30/2026		A		1,156		(1)	(1)	Common Stock	1,156	$25.54	15,820	D

Explanation of Responses:

1. The Trinity Phantom Stock Units were accrued under the Trinity Industries, Inc. Deferred Plan for Directors Fees. Stock units are converted at "1 - for - 1" (a rate of one stock unit per one share of Trinity common stock). Settlement of the account will be in cash after the reporting person's retirement.

Remarks:

	Phillip M. Kim For: Robert C. Biesterfeld Jr.	10/01/2026
	** 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.
* Form 4: SEC 1474 (03-26)