# EDGAR Filing Document

**Accession Number:** 0000909108
**File Stem:** 0000899140-26-000409
**Filing Date:** 2026-5
**Character Count:** 4866
**Document Hash:** 324f0ae148cb6579fe90e1a6178c49fd
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000899140-26-000409.hdr.sgml**: 20260504

**ACCESSION NUMBER**: 0000899140-26-000409

**CONFORMED SUBMISSION TYPE**: 15-12G

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260504

**DATE AS OF CHANGE**: 20260504

**EFFECTIVENESS DATE**: 20260504

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** DIAMOND HILL INVESTMENT GROUP INC
- **CENTRAL INDEX KEY:** 0000909108
- **STANDARD INDUSTRIAL CLASSIFICATION:** INVESTMENT ADVICE [6282]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 650190407
- **STATE OF INCORPORATION:** OH
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 15-12G
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-24498
- **FILM NUMBER:** 26934697

**BUSINESS ADDRESS:**
- **STREET 1:** 325 JOHN H MCCONNELL BLVD
- **STREET 2:** SUITE 200
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215
- **BUSINESS PHONE:** 6142553333

**MAIL ADDRESS:**
- **STREET 1:** 325 JOHN H MCCONNELL BLVD
- **STREET 2:** SUITE 200
- **CITY:** COLUMBUS
- **STATE:** OH
- **ZIP:** 43215

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BANC STOCK GROUP INC
- **DATE OF NAME CHANGE:** 19971016

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HEARTLAND GROUP OF COMPANIES INC
- **DATE OF NAME CHANGE:** 19940301

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** HEARTLAND FINANCIAL GROUP INC
- **DATE OF NAME CHANGE:** 19930714

OMB APPROVAL <br> <u> OMB Number:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 3235-0167 Expires: August 31, 2027 Estimated average burden hours per response 1.50 </u>

#### UNITED STATES

#### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### FORM 15

#### <br>
**CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER<br> SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION<br> OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE<br> SECURITIES EXCHANGE ACT OF 1934.**

Commission File Number <u>000-24498</u>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;

Diamond Hill Investment Group, LLC<br> (formerly Diamond Hill Investment Group, Inc.)\*

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(Exact name of registrant as specified in its charter)

325 John H. McConnell Blvd., Suite 200

Columbus, Ohio 43215

(614) 255-3333

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(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Common shares, no par value

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(Title of each class of securities covered by this Form)

None.

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(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports:

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| | |
|:---|:---|
|  Rule 12g-4(a)(1) | ☒ |
|  Rule 12g-4(a)(2) | ☐ |
|  Rule 12h-3(b)(1)(i) | ☒ |
|  Rule 12h-3(b)(1)(ii) | ☐ |
|  Rule 15d-6 | ☐ |
| Rule 15d-22(b) | ☐ |

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Approximate number of holders of record as of the certification or notice date:

Common shares, no par value: One (1) holder

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Pursuant to the requirements of the Securities Exchange Act of 1934, Diamond Hill Investment Group, LLC has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person.

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| | |
|:---|:---|
|  | **DIAMOND HILL INVESTMENT GROUP, LLC** |
| Date: <u>May 4, 2026&nbsp;&nbsp;&nbsp;&nbsp;</u> <br>| By: <u>/s/ David P. O'Connor&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u> <br>|
|  | Name: David P. O'Connor |
|  | Title: General Counsel and Secretary |

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<br> \* On December 10, 2025, Diamond Hill Investment Group, LLC (formerly known as Diamond Hill Investment Group, Inc.), an Ohio limited liability company (recently converted from an Ohio corporation) ("<u>DHIL</u>"), entered into an Agreement and Plan of Merger (the "<u>Merger Agreement</u>"), with First Eagle Investment Management, LLC, a Delaware limited liability company ("<u>First Eagle</u>"), and Soar Christopher Holdings, Inc., an Ohio corporation and a wholly owned subsidiary of First Eagle ("<u>Merger Sub</u>"). On April 22, 2026, pursuant to the terms and conditions of the Merger Agreement, Merger Sub merged with and into DHIL (the "<u>Merger</u>"), with DHIL surviving the Merger as a wholly owned subsidiary of First Eagle.

SEC 2069 (08-11) Potential persons who are to respond to the collection of information contained in this Form are not required to respond unless the Form displays a currently valid OMB control number.

Board of Governors of the Federal Reserve System OMB Number 7100-0091 Approval expires August 31, 2026