Dodge & Cox reports 23.35M TRU shares (12.1%)

Dodge & Cox filed Amendment No. 2 to a Schedule 13G/A reporting beneficial ownership of 23,353,165 shares of TransUnion common stock, representing 12.1% of the class.

Rhea-AI Filing Summary

Dodge & Cox filed Amendment No. 2 to a Schedule 13G/A reporting beneficial ownership of 23,353,165 shares of TransUnion common stock, representing 12.1% of the class.

The filing states Dodge & Cox has sole voting power over 22,036,310 shares and sole dispositive power over 23,353,165 shares. It also discloses that Dodge & Cox Stock Fund holds 14,772,786 shares (7.7%).

Insights

Institutional Ownership Analyst

Dodge & Cox reports a meaningful passive stake in TransUnion.

The filing lists 23,353,165 shares beneficially owned, equal to 12.1% of the class, with sole dispositive power. This indicates a substantial institutional position disclosed under Schedule 13G/A rules.

Future filings may show changes to this position; timing and any trading intent are not described in the excerpt.

Compliance & Securities Lawyer

Disclosure follows Schedule 13G/A investor reporting conventions.

The statement explains that clients of Dodge & Cox have rights to dividends and proceeds, and specifically names Dodge & Cox Stock Fund with 14,772,786 shares (7.7%). The signature block shows the amendment dated 06/05/2026.

Filing mechanics and ownership attribution are explicit; no transaction details or changes in voting arrangements are included.

Key Figures

Beneficial ownership: 23,353,165 shares Percent of class: 12.1% Sole voting power: 22,036,310 shares +2 more

5 metrics

Beneficial ownership 23,353,165 shares reported on Schedule 13G/A

Percent of class 12.1% percent of TransUnion common stock

Sole voting power 22,036,310 shares shares with sole power to vote

Sole dispositive power 23,353,165 shares shares with sole power to dispose

Dodge & Cox Stock Fund holding 14,772,786 shares identified fund interest (7.7%)

Key Terms

Schedule 13G/A, beneficially owned, sole dispositive power, Investment Company Act of 1940

4 terms

Schedule 13G/A regulatory

"Amendment No. 2 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

"Amount beneficially owned: 23,353,165"

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: 23,353,165"

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.

Investment Company Act of 1940 regulatory

"investment companies registered under the Investment Company Act of 1940"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

FAQ

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

What stake does Dodge & Cox report in TransUnion (TRU)?

Dodge & Cox reports beneficial ownership of 23,353,165 shares, representing 12.1% of TransUnion common stock. The filing states sole dispositive power over 23,353,165 shares and sole voting power over 22,036,310 shares.

Does the filing name any specific fund holdings for TRU?

Yes. The filing identifies Dodge & Cox Stock Fund as holding 14,772,786 shares, equal to 7.7% of the class. This interest is disclosed as an example of managed-client holdings under the Investment Company Act framework.

What type of SEC filing is this for TRU and why was it filed?

This is an Amendment No. 2 to a Schedule 13G/A, used by passive investors to report beneficial ownership. It updates ownership details and voting/dispositive powers for a holder with more than 5% of the class.

Who signed the Schedule 13G/A amendment for Dodge & Cox?

The filing is signed by Katherine M. Primas, identified as Chief Compliance Officer, with the signature date shown as 06/05/2026. The amendment references TransUnion's issuer details in the exhibit text.

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

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Accepted by SEC EDGAR 06/05/2026 - 12:34 PM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

TransUnion

(Name of Issuer)

Common Stock

(Title of Class of Securities)

89400J107

(CUSIP Number)

05/31/2026

(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): 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 22,036,310.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 23,353,165.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

23,353,165.00

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)

12.1 %

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, Illinois 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: 23,353,165
(b)	Percent of class: 12.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 22,036,310
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 23,353,165
	(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. Dodge & Cox Stock Fund, an investment company registered under the Investment Company Act of 1940, has an interest of 14,772,786 or 7.7%, of the class of securities reported herein.
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:	06/05/2026