Trinity Industries (NYSE: TRN) insider lines up six-figure stock sale for 2026

Rhea-AI Filing Summary

TRINITY INDUSTRIES INC (TRN) is the issuer for a planned sale of company stock by insider Kevin Poet under Rule 144. The notice covers the potential sale of 17,000 shares of common stock, with an aggregate market value of $504,730, through Morgan Stanley Smith Barney LLC on the NYSE, with an approximate sale date of 08/25/2026. The shares to be sold were acquired upon the vesting of restricted and performance stock units on 5/15/2024, 05/20/2024, and 05/15/2025.

Key Figures

Shares to be sold: 17,000 shares Aggregate market value: $504,730 Approximate date of sale: 08/25/2026 +2 more

5 metrics

Shares to be sold 17,000 shares Common stock covered by Rule 144 notice

Aggregate market value $504,730 Value of 17,000 TRN shares covered by the notice

Approximate date of sale 08/25/2026 Approximate sale date for the reported shares

Vesting date 05/20/2024 Acquisition date for restricted and performance stock units to be sold

Additional vesting dates 5/15/2024 and 05/15/2025 Other vesting dates for units that resulted in shares to be sold

Key Terms

Rule 144, Restricted and Performance Stock Units, aggregate market value, Form 144

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) 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.

Restricted and Performance Stock Units financial

"Restricted and Performance Stock Units | Issuer | | | 17000"

aggregate market value financial

"17000 | 504730.00 | 79669486 | 08/25/2026"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Form 144 regulatory

"144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

FAQ

What stock sale is being reported for TRN in this Form 144?

The notice covers a planned sale of 17,000 shares of TRINITY INDUSTRIES INC common stock by Kevin Poet under Rule 144, with an aggregate market value of $504,730 and an approximate sale date of 08/25/2026 on the NYSE.

Who is selling TRINITY INDUSTRIES INC (TRN) shares and through which broker?

The seller is Kevin Poet, and the planned Rule 144 sale of TRINITY INDUSTRIES INC common stock is to be executed through Morgan Stanley Smith Barney LLC Executive Financial Services.

How many TRN shares are covered by this Rule 144 notice and what is their value?

The Rule 144 notice covers 17,000 common shares of TRINITY INDUSTRIES INC with an aggregate market value of $504,730, based on the information in the notice.

When were the TRN shares being sold by Kevin Poet acquired?

The shares to be sold were acquired upon the vesting of restricted and performance stock units on 5/15/2024, 05/20/2024, and 05/15/2025.

On which exchange are the TRN shares in this Rule 144 notice expected to be sold?

The notice states that the 17,000 shares of TRINITY INDUSTRIES INC common stock are expected to be sold on the NYSE.

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

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Available on EDGAR 08/25/2026 - 04:30 PM Accepted by SEC EDGAR 08/25/2026 - 04:29 PM Learn about SEC filing dates

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	0001823479
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	TRINITY INDUSTRIES INC.
SEC File Number	001-06903
Address of Issuer	14221 N Dallas Parkway, Suite 1100 Dallas TEXAS 75254-2957
Phone	214-631-4420
Name of Person for Whose Account the Securities are To Be Sold	KEVIN POET
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

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	17000	504730.00	79669486	08/25/2026	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	05/20/2024	Restricted and Performance Stock Units	Issuer			17000	05/20/2024	N/A

* 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	The securities to be sold were acquired upon the vesting of restricted and performance stock units on 5/15/2024, 05/20/2024, and 05/15/2025.
Date of Notice	08/25/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	05/26/2026
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/ Kevin Poet
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)