Dodge & Cox discloses 5.1% TransUnion (TRU) holding in Schedule 13G

Rhea-AI Filing Summary

Dodge & Cox has disclosed a significant stake in TransUnion. As of December 31, 2025, the firm beneficially owned 9,842,006 shares of TransUnion common stock, representing 5.1% of the outstanding class. Dodge & Cox reports sole voting power over 9,343,848 shares and sole dispositive power over the full 9,842,006 shares, with no shared voting or dispositive power.

The filing explains that these shares are held on behalf of Dodge & Cox clients, including registered investment companies and other managed accounts, which have rights to dividends and sale proceeds. Dodge & Cox certifies that the position is held in the ordinary course of business and not for the purpose of changing or influencing control of TransUnion.

Insights

Institutional ownership analyst

Dodge & Cox has a 5.1% institutional stake in TransUnion held for clients.

Dodge & Cox reports beneficial ownership of 9,842,006 TransUnion common shares, or 5.1% of the class as of December 31, 2025. It holds sole voting power over 9,343,848 shares and sole dispositive power over the entire position, indicating centralized decision-making authority at the adviser level.

The filing clarifies that the economic benefits from dividends and sale proceeds accrue to the firm’s clients, including registered funds and separate accounts, not the adviser itself. Dodge & Cox certifies that the stake is held in the ordinary course of business and not to influence control, which aligns with a typical passive institutional ownership profile.

The position size makes Dodge & Cox a notable shareholder, but any impact on TransUnion will depend on future portfolio decisions disclosed in subsequent beneficial ownership reports and other company filings.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

TransUnion

(Name of Issuer)

Common Stock

(Title of Class of Securities)

89400J107

(CUSIP Number)

12/31/2025

(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)

SCHEDULE 13G

CUSIP No. 89400J107

1

Names of Reporting Persons

Dodge & Cox

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

CALIFORNIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 9,343,848.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 9,842,006.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

9,842,006.00

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)

5.1 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TransUnion
(b)	Address of issuer's principal executive offices: 555 West Adams Street, Chicago, IL 60661
Item 2.
(a)	Name of person filing: Dodge & Cox
(b)	Address or principal business office or, if none, residence: 555 California Street 40th Floor, San Francisco, CA 94104
(c)	Citizenship: California, USA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 89400J107
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: 9,842,006
(b)	Percent of class: 5.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 9,343,848
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 9,842,006
	(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.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The clients of Dodge & Cox, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or power to direct the receipt of dividends from, and the proceeds from the sale of, TransUnion.
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.

Dodge & Cox

Signature:	/S/ Katherine M. Primas
Name/Title:	Chief Compliance Officer
Date:	02/13/2026