Capital International Investors (TRN) reports 5.54M shares; 6.9% ownership

Rhea-AI Filing Summary

Capital International Investors files Amendment No. 6 to Schedule 13G/A reporting 5,544,272 shares of Trinity Industries, Inc. common stock. The filing states this equals 6.9% of 79,839,720 shares outstanding. The report shows sole voting power of 5,538,303 and sole dispositive power of 5,544,272. The filing is signed by Aaron Espin as Senior Vice President on 05/13/2026.

Key Figures

Beneficial ownership: 5,544,272 shares Percent of class: 6.9% Shares outstanding: 79,839,720 shares +3 more

6 metrics

Beneficial ownership 5,544,272 shares reported in Schedule 13G/A Amendment No. 6

Percent of class 6.9% of 79,839,720 shares believed outstanding

Shares outstanding 79,839,720 shares figure used in the filing to calculate ownership percentage

Sole voting power 5,538,303 shares shares as to which filer has sole power to vote

Sole dispositive power 5,544,272 shares shares as to which filer has sole power to dispose

Filing signature date 05/13/2026 signature by Aaron Espin, Senior Vice President

Key Terms

Schedule 13G/A, Beneficially owned, Sole dispositive power, CUSIP

4 terms

Schedule 13G/A regulatory

"Amendment No. 6 to Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

Beneficially owned financial

"CII is deemed to be the beneficial owner of 5,544,272 shares"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 5,544,272"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

CUSIP financial

"CUSIP No.: 896522109 for Common Stock"

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 6)

Trinity Industries, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

896522109

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 896522109

1

Names of Reporting Persons

Capital International Investors

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 5,538,303.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,544,272.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,544,272.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

6.9 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Trinity Industries, Inc.
(b)	Address of issuer's principal executive offices: 14221 N Dallas Parkway, Suite 1100, Dallas, TX 75254
Item 2.
(a)	Name of person filing: Capital International Investors
(b)	Address or principal business office or, if none, residence: 333 South Hope Street, 55th Fl, Los Angeles, CA 90071
(c)	Citizenship: N/A
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 896522109
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 5,544,272 ** **Capital International Investors ("CII") is a division of Capital Research and Management Company ("CRMC"), as well as its investment management subsidiaries and affiliates Capital Bank and Trust Company, Capital International, Inc., Capital International Limited, Capital International Sarl, Capital International K.K., Capital Group Private Client Services, Inc., and Capital Group Investment Management Private Limited (together with CRMC, the "investment management entities"). CII's divisions of each of the investment management entities collectively provide investment management services under the name "Capital International Investors." CII is deemed to be the beneficial owner of 5,544,272 shares or 6.9% of the 79,839,720 shares believed to be outstanding.
(b)	Percent of class: 6.9 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 5,538,303
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5,544,272
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Capital International Investors

Signature:	Aaron Espin
Name/Title:	Senior Vice President
Date:	05/13/2026

FAQ

What stake does Capital International Investors report in TRN?

Capital International Investors reports beneficial ownership of 5,544,272 shares (6.9%). The filing ties this to a total outstanding share count of 79,839,720 and classifies the position under common stock with CUSIP 896522109.

How much voting authority does Capital International Investors hold in TRN?

CII reports sole voting power for 5,538,303 shares. The Schedule 13G/A shows no shared voting power and indicates sole dispositive power for 5,544,272 shares as of the amendment filing.

When was the Schedule 13G/A amendment for TRN signed?

The filing is signed on 05/13/2026 by Aaron Espin, Senior Vice President. It is labeled Amendment No. 6 and references Trinity Industries, Inc. common stock (CUSIP 896522109).

Does the filing state whether shares are held directly or through affiliates?

The filing states CII is a division of Capital Research and Management Company and lists investment management subsidiaries and affiliates. It attributes beneficial ownership to the Capital International Investors grouping rather than a single individual.

What share count does the filing use for Trinity Industries' outstanding shares?

The filing references 79,839,720 shares believed to be outstanding. That figure is used to calculate CII's reported 6.9% beneficial ownership in the Schedule 13G/A amendment.