Vanguard disaggregates holdings after realignment for Diamond Hill (NYSE: DHIL)

Rhea-AI Filing Summary

Diamond Hill Investment Group Inc received an amended Schedule 13G filing from The Vanguard Group reporting 0 shares beneficially owned and 0% of the common stock following an internal realignment. The filing states that, pursuant to SEC Release No. 34-39538, certain Vanguard subsidiaries and business divisions will report ownership separately after the January 12, 2026 realignment.

The submission is an amendment clarifying ownership reporting: Vanguard says it no longer is deemed to beneficially own securities held by the disaggregated subsidiaries or divisions that pursue the same investment strategies. The form is signed by Ashley Grim, Head of Global Fund Administration, dated 03/26/2026.

Insights

Compliance & Regulatory Expert

Amendment restates ownership as zero due to disaggregation under SEC guidance.

The filing explicitly reports Amount beneficially owned: 0 and Percent of class: 0%, reflecting an internal Vanguard realignment effective January 12, 2026. It cites SEC Release No. 34-39538 as the legal basis for separate reporting by subsidiaries and business divisions.

Practical dependencies include how each disaggregated entity will file going forward; subsequent filings from Vanguard affiliates will show any residual holdings. The amendment is a compliance update rather than a market-movement event.

Investor Relations Analyst

Clarifies that Vanguard as an umbrella entity reports no beneficial ownership after internal restructuring.

The disclosure ties the change to an internal realignment and states subsidiaries pursue the same strategies but will report separately. The filing is procedural: it clarifies reporting attribution rather than describing purchases or dispositions by the issuer or Vanguard.

Investors should note that ownership data for Vanguard-managed accounts may appear in filings from specific Vanguard subsidiaries; timing and amounts will depend on those separate reports.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Diamond Hill Investment Group Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

(CUSIP Number)

03/13/2026

(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 No.

1

Names of Reporting Persons

The Vanguard Group

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

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

0.00

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)

0 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: On January 12, 2026, The Vanguard Group, Inc. went through an internal realignment. In accordance with SEC Release No. 34-39538 (January 12, 1998), certain subsidiaries or business divisions of subsidiaries of The Vanguard Group, Inc., that formerly had, or were deemed to have, beneficial ownership with The Vanguard Group, Inc., will report beneficial ownership separately (on a disaggregated basis) from The Vanguard Group, Inc. in reliance on such release. These subsidiaries and/or business divisions pursue the same investment strategies as previously pursued by The Vanguard Group, Inc. prior to the realignment. Further in accordance with SEC Release No. 34-39538 (January 12, 1998), The Vanguard Group, Inc. no longer has, or is deemed to have, beneficial ownership over securities beneficially owned by such subsidiaries and/or business divisions.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Diamond Hill Investment Group Inc
(b)	Address of issuer's principal executive offices: 325 JOHN H MCCONNELL BLVD, SUITE 200, COLUMBUS, OH, 43215
Item 2.
(a)	Name of person filing: The Vanguard Group
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd.,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.:
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: 0
(b)	Percent of class: 0 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
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 Vanguard Group, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
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.

The Vanguard Group

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	03/26/2026

FAQ

What does Vanguard report for DHIL ownership in this Schedule 13G/A?

The filing states Amount beneficially owned: 0 and Percent of class: 0%. It explains Vanguard’s subsidiaries will report separately after an internal realignment on January 12, 2026.

Why does The Vanguard Group say it reports zero ownership for DHIL?

Vanguard cites SEC Release No. 34-39538 and an internal realignment on January 12, 2026, which disaggregates reporting so subsidiaries/business divisions report beneficial ownership separately from The Vanguard Group.

Will Vanguard subsidiaries still hold similar investment strategies after the realignment?

Yes. The amendment states the subsidiaries and business divisions pursue the same investment strategies as previously, but they will report beneficial ownership separately in reliance on the cited SEC release.

Who signed the amended Schedule 13G/A for Vanguard regarding DHIL?

The form is signed by Ashley Grim, Head of Global Fund Administration, with the signature date shown as 03/26/2026 on the amendment.

Does this filing indicate any purchases or sales of DHIL shares by Vanguard?

No. The amendment reports 0 shares beneficially owned by The Vanguard Group and attributes the change to reallocation of reporting to subsidiaries; it does not disclose purchases or sales in this excerpt.