Private company

DIAMOND HILL INVESTMENT GROUP INC

DIAMOND HILL INVESTMENT GROUP INC is an American investment advice company based in Columbus, incorporated in Ohio.2

Last updated Oct 20, 2026.

Overview

  • IndustryInvestment Advice2
  • HeadquartersColumbus, United States2
  • Incorporated inOH3
  • Business address325 John H Mcconnell Blvd, Suite 200, Columbus, Oh 432153
  • Filer categoryAccelerated filer3
  • Legal formLimited Liability Company2
  • LEI549300AQ6779A0B7VZ572
  • StatusActive2
  • LEI statusIssued and current2
  • Registered addressC/O CORPORATION SERVICE COMPANY, 43215 Columbus, United States2
  • Registered withCorporation Database (Ohio Secretary of State), 12937282

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Factors that could cause the Company’s actual results or experiences to differ materially from those expressed or implied by the forward-looking statements include, but are not limited to: (i) declines or volatility in the Company’s AUM or AUA, whether due to market conditions, investment performance, client withdrawals, asset allocation decisions, or otherwise; (ii) the loss, renegotiation, non-renewal, or termination of investment advisory or administration agreements, including as a result of the proposed merger with First Eagle or client consent related requirements; (iii) risks related to, or the failure to consummate, the proposed merger with First Eagle, including the failure to obtain required approvals or client consents, delays in completion, transaction-related costs, restrictions on operations prior to closing, disruption to business relationships, shareholder litigation, or …5 From its latest annual report

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2025

25.0%Operating margin6
33.1%Net margin6
-2.6%Revenue growth, 20256
27.6%Return on equity6
-$9.1MFree cash flow6

Where the money goes

Where each dollar of revenue went, fiscal 2025

  • Other costs55¢$80.4M
  • Income tax12¢$17.9M
  • Profit33¢$48.8M

Out of $147.1M in revenue.6

Financial statements

Revenue789106$147.1M in 2025+8% since 2019
0$50.0M$100.0M$150.0M$200.0M2019: $136.6M$136.6M20192020: $126.4M$126.4M2020−7%2021: $182.2M$182.2M2021+44%2022: $154.5M$154.5M2022−15%2023: $136.7M$136.7M2023−12%2024: $151.1M$151.1M2024+11%2025: $147.1M$147.1M2025−3%
Operating income789106$36.7M in 2025−23% since 2019
0$20.0M$40.0M$60.0M$80.0M2019: $47.9M$47.9M20192020: $45.5M$45.5M2020−5%2021: $76.3M$76.3M2021+67%2022: $64.3M$64.3M2022−16%2023: $35.5M$35.5M2023−45%2024: $43.9M$43.9M2024+24%2025: $36.7M$36.7M2025−16%
Net income789106$48.8M in 2025−11% since 2019
0$20.0M$40.0M$60.0M$80.0M2019: $55.0M$55.0M20192020: $38.7M$38.7M2020−30%2021: $74.2M$74.2M2021+92%2022: $40.4M$40.4M2022−46%2023: $42.2M$42.2M2023+4%2024: $43.2M$43.2M2024+2%2025: $48.8M$48.8M2025+13%
Fiscal year2019202020212022202320242025
Revenue$136.6M7$126.4M8$182.2M9$154.5M10$136.7M6$151.1M6$147.1M6
Operating expenses$105.9M9$90.2M10$101.2M6$107.2M6$110.4M6
Operating income$47.9M7$45.5M8$76.3M9$64.3M10$35.5M6$43.9M6$36.7M6
Income before tax$101.6M9$51.0M10$58.6M6$59.0M6$67.3M6
Income tax$18.7M7$14.0M8$26.0M9$14.1M10$15.5M6$15.8M6$17.9M6
Net income$55.0M7$38.7M8$74.2M9$40.4M10$42.2M6$43.2M6$48.8M6
Earnings per share$15.997$12.038$23.349$13.0110$14.326$15.666$17.916
Earnings per share (diluted)$15.997$12.038$23.349$13.0110$14.326$15.666$17.916
Shares (weighted, basic)3.2M shares93.1M shares102.9M shares62.8M shares62.7M shares6
Shares (weighted, diluted)3.2M shares93.1M shares102.9M shares62.8M shares62.7M shares6

Compare DIAMOND HILL INVESTMENT GROUP INC with another company

Corporate structure

DIAMOND HILL INVESTMENT GROUP INC sits at the top of its group. 23 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Major holders of DIAMOND HILL INVESTMENT GROUP INC

  • ROYCE & ASSOCIATES LP Filed SCHEDULE 13G/A on DIAMOND HILL INVESTMENT GROUP INC, latest May 5, 2026 (5 filings since Jan 23, 2023)
  • GLAZER CAPITAL, LLC Filed SCHEDULE 13G on DIAMOND HILL INVESTMENT GROUP INC, latest Apr 22, 2026
  • VANGUARD GROUP INC Filed SCHEDULE 13G/A on DIAMOND HILL INVESTMENT GROUP INC, latest Mar 26, 2026 (3 filings since Feb 9, 2023)
  • Wells Fargo Filed SC 13G/A on DIAMOND HILL INVESTMENT GROUP INC, latest Jan 26, 2022
  • DIAMOND HILL INVESTMENT GROUP INC Columbus, Ohio, United States
    • DIAMOND HILL CAPITAL MANAGEMENT, LLC Subsidiary · Columbus, Ohio, United States
      • Diamond Hill Core Bond Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Core Plus Bond Fund Fund · Columbus, Ohio, United States
      • DIAMOND HILL FUNDS Fund · Columbus, Ohio, United States
      • Diamond Hill International Fund Fund · Columbus, Ohio, United States
      • Diamond Hill International Portfolio Fund · Columbus, Ohio, United States
      • Diamond Hill Large Cap Concentrated ETF Fund · Columbus, Ohio, United States
      • Diamond Hill Large Cap Concentrated Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Large Cap Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Long-Short Fund Fund · Columbus, Ohio, United States
      • DIAMOND HILL MICRO CAP FUND, LP Fund · Columbus, Ohio, United States
      • Diamond Hill Mid Cap Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Mid Cap Portfolio Fund · Columbus, Ohio, United States
      • Diamond Hill Securitized Credit Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Securitized Total Return Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Select Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Select Portfolio Fund · Columbus, Ohio, United States
      • Diamond Hill Short Duration Securitized Bond Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Small Cap Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Small Cap Portfolio Fund · Columbus, Ohio, United States
      • Diamond Hill Small-Mid Cap Fund Fund · Columbus, Ohio, United States
      • Diamond Hill Small-Mid Cap Portfolio Fund · Columbus, Ohio, United States

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What DIAMOND HILL INVESTMENT GROUP INC reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

ItemLatestA year beforeChange
Property and equipment, net$9.8M6 Dec 31, 2025$8.4M6 Dec 31, 2024+17.2%
Operating-lease assets (leased space)$3.5M6 Dec 31, 2025$3.4M6 Dec 31, 2024+2.9%

Investments

ItemLatestA year beforeChange
Cash and cash equivalents$41.6M10 Dec 31, 2024$47.0M10 Dec 31, 2023−11.4%
Stakes in other companies (equity method)$115.3M6 Dec 31, 2025$94.0M6 Dec 31, 2024+22.7%

Properties, in its own words

The Company leases office space and conducts its general operations at one location, the address of which is 325 John H. McConnell Boulevard, Suite 200, Columbus, Ohio 43215. The Company does not own any real estate or interests in real estate.

Item 2 of the 10-K filed Feb 26, 2026.5

Leadership

Who has led DIAMOND HILL INVESTMENT GROUP INC, and when. Pick a name to see everywhere that person has worked.

Chief executive

  1. Roderick H. Dillon Jr.2006–2016
  2. Christopher M. Bingaman2016–2019
  3. Heather E. Brilliant2019–now

President

  1. Roderick H. Dillon Jr.2006–2012
  2. Christopher M. Bingaman2014–2016
  3. Jo Ann Quinif2023–now

Chief financial officer

  1. James F. Laird Jr.2006–2015
  2. Thomas Edward Line2015–now

Chief operating officer

  1. Lisa M. Wesolek2014–2018
2010201520202025
Board members and other officers (23)

Subsidiaries and ownership

Subsidiaries (Exhibit 21)

  • Diamond Hill Capital Management, Inc. Ohio4

The subsidiaries the company lists in Exhibit 21 of its annual report, as filed.

Former names

  • BANC STOCK GROUP INCDec 1, 1997 to Jan 19, 20013
  • HEARTLAND GROUP OF COMPANIES INCApr 25, 1996 to Jul 11, 19973

Timeline

  1. Apr 22, 20268-K Ended a material agreement; Completed an acquisition or sale; Listing notice or transfer44
  2. Apr 17, 20268-K Regulation FD disclosure45
  3. Apr 2, 20268-K Other events46
  4. Mar 4, 20268-K Other events47
  5. Mar 3, 20268-K Shareholder vote; Other events48
  6. Feb 26, 20268-K Results of operations49
  7. Feb 25, 20268-K Executive or director change50
  8. Feb 24, 20268-K Other events51
  9. Feb 17, 20268-K Other events52
  10. Feb 3, 20268-K Other events53
  11. Jan 28, 20268-K Executive or director change54
  12. Jan 5, 20268-K Other events55
  13. Sep 5, 2019New chief executive Heather E. Brilliant becomes CEO15
  14. Jan 4, 2016New chief executive Christopher M. Bingaman becomes CEO16
  15. Dec 18, 2006New chief executive Roderick H. Dillon Jr. becomes CEO17
  16. Jan 29, 2002Founded DIAMOND HILL INVESTMENT GROUP INC is founded2

Calendar

When it reported results

  1. Feb 26, 2026Reported quarterly or annual results49
  2. Oct 30, 2025Reported quarterly or annual results56
  3. Jul 29, 2025Reported quarterly or annual results57
  4. Apr 29, 2025Reported quarterly or annual results58
  5. Feb 26, 2025Reported quarterly or annual results59
  6. Nov 4, 2024Reported quarterly or annual results60
  7. May 8, 2024Reported quarterly or annual results61
  8. Feb 29, 2024Reported quarterly or annual results62

Upcoming dates from Nasdaq's calendar; past results from the company's 8-K filings (Item 2.02). The full markets calendar

Filings

267 filings to the SEC since October 2021: 5 annual reports, 13 quarterly reports, 91 major events, 103 insider forms, 13 large holders, 42 other. The latest 20:

  1. May 5, 2026SCHEDULE 13G/A EDGAR
  2. May 4, 202615-12G EDGAR
  3. Apr 28, 2026SCHEDULE 13G/A EDGAR
  4. Apr 22, 202625-NSE EDGAR
  5. Apr 22, 20264 EDGAR
  6. Apr 22, 2026SCHEDULE 13G EDGAR
  7. Apr 22, 2026S-8 POS EDGAR
  8. Apr 22, 2026S-8 POS EDGAR
  9. Apr 22, 2026S-8 POS EDGAR
  10. Apr 22, 20264 EDGAR
  11. Apr 22, 20264 EDGAR
  12. Apr 22, 20264 EDGAR
  13. Apr 22, 20264 EDGAR
  14. Apr 22, 20264 EDGAR
  15. Apr 22, 20264 EDGAR
  16. Apr 22, 20264 EDGAR
  17. Apr 22, 20264 EDGAR
  18. Apr 22, 20264 EDGAR
  19. Apr 22, 2026S-8 POS EDGAR
  20. Apr 22, 20268-K EDGAR

The 267 filings since October 2021 can be filtered by form type and year here when JavaScript is on.

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

Insider trades

50 open-market trades by officers, directors and large owners since October 2021: 28 buys and 22 sales. Grants, option exercises and gifts are left out.

DateWhoTradeSharesPriceValueFiling
Sep 23, 2025Thomas L'QuentusDirectorSale250$141.10$35.3KForm 4
Sep 12, 2025Thomas L'QuentusDirectorBuy13$143.00$1.8KForm 4
Sep 5, 2025Meyer Paula RDirectorSale350$141.80$49.6KForm 4
Jun 13, 2025Quinif Jo AnnPresident of DHCMBuy2,750$144.01$396.0KForm 4
Jun 13, 2025Quinif Jo AnnPresident of DHCMSale2,750$144.00$396.0KForm 4
Jun 13, 2025Thomas L'QuentusDirectorBuy12$146.51$1.8KForm 4
May 6, 2025Cooley Richard ScottDirectorBuy278$134.10$37.3KForm 4
May 2, 2025Cooley Richard ScottDirectorBuy124$129.00$16.0KForm 4
May 1, 2025Cooley Richard ScottDirectorBuy692$127.50$88.2KForm 4
Apr 30, 2025Cooley Richard ScottDirectorBuy1,000$124.50$124.5KForm 4
Mar 31, 2025Cooley Richard ScottDirectorBuy100$142.50$14.2KForm 4
Mar 21, 2025Cooley Richard ScottDirectorBuy50$143.50$7.2KForm 4
Mar 21, 2025Thomas L'QuentusDirectorBuy12$146.50$1.8KForm 4
Mar 12, 2025Cooley Richard ScottDirectorBuy500$144.00$72.0KForm 4
Mar 5, 2025Cooley Richard ScottDirectorBuy500$146.00$73.0KForm 4
Feb 28, 2025Cooley Richard ScottDirectorBuy272$144.00$39.2KForm 4
Dec 20, 2024Cooley Richard ScottDirectorBuy1,000$152.25$152.2KForm 4
Dec 6, 2024Thomas L'QuentusDirectorBuy11$165.07$1.8KForm 4
Nov 21, 2024LAIRD JAMES F JRDirectorSale6,000$170.26$1.0MForm 4
Nov 14, 2024Meyer Paula RDirectorSale300$169.00$50.7KForm 4

All 50 trades can be filtered by person here when JavaScript is on.

From Forms 4 filed with the SEC.

Major holders

Investors who own more than 5% of the shares must tell the SEC: a 13D if they may seek to influence the company, a 13G if they hold passively.

Executive pay

What the company paid its top executives, from the summary compensation table in its proxy statement. Total pay includes salary, bonus, stock and option awards and other pay, as the company valued them.

YearExecutiveAgeSalaryTotal pay
2025Heather E. Brilliant$400.0K$7.0M67
2025Jo Ann Quinif$314.2K$5.4M67
2025Thomas E. Line$300.0K$1.3M67
2024Chief Executive Officer$400.0K$3.0M67
2024DHCM President and$300.0K$2.5M67
2024Chief Financial Officer$300.0K$1.2M67
2023and President$400.0K$2.7M67
2023Chief Client Officer$300.0K$2.0M67
2023and Treasurer$250.0K$1.0M67

SEC filer profile

How DIAMOND HILL INVESTMENT GROUP INC is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

  • Name on EDGARDIAMOND HILL INVESTMENT GROUP INC1
  • CIK0000909108
  • Employer ID (EIN)65-01904075
  • Filer statusAccelerated filer not an emerging growth company; not a smaller reporting company; not a shell company5
  • Incorporated inOhio5
  • Fiscal year endsDecember 311
  • Industry code (SIC)6282 Investment Advice1
  • SEC reviewing officeOffice of Finance, Division of Corporation Finance1
  • Business address325 John H Mcconnell Blvd, Suite 200, Columbus, OH 432151
  • Phone61425533331
  • Shares outstanding2,705,375 shares as of Feb 25, 20265
  • Public float$364.1M as of Jun 30, 20255
  • AuditorKPMG LLP, Columbus, Ohio PCAOB ID 185; it also attests to the company’s internal control over financial reporting5
  • On EDGAR sinceApr 25, 19961
  • Filings1,126 in all: 8-K (435), 4 (318), 10-Q (60), 5 (44), SC 13G/A (42), 10QSB (29), DEF 14A (27), 10-K (20)1
    All 36 form types

    3 (20), 144 (16), ARS (13), DEFA14A (12), SC 13G (12), 10KSB (11), S-8 (11), S-8 POS (8), UPLOAD (7), 4/A (5), CORRESP (5), SCHEDULE 13G/A (4), 10QSB/A (3), 8-K/A (3), SC 13D (3), SC 13D/A (3), DEFM14A (2), PRE 14A (2), PREM14A (2), 10-K/A (1), 10KSB/A (1), 10KSB40 (1), 15-12G (1), 25-NSE (1), 8-A12G (1), DFAN14A (1), PREC14A (1), SCHEDULE 13G (1)

  • Latest filingsAnnual report (10-K) Feb 26, 2026
    Quarterly report (10-Q) Oct 30, 2025
    Proxy statement (DEF 14A) Apr 13, 2026
    Latest 8-K (8-K) Apr 22, 2026

Securities registered for trading

ClassSymbolExchange
Common shares, no par valueDHILThe Nasdaq Stock Market

From the cover page of the 10-K filed Feb 26, 2026 (Section 12(b) of the Exchange Act).5

Risk factors and legal proceedings

The risks DIAMOND HILL INVESTMENT GROUP INC names in Item 1A of its 10-K filed Feb 26, 2026: 6 risks under these headings, as written.5

  • Risks Related to the Proposed Merger
  • Business Risks
  • Operational Risks
  • Industry, Market, and Economic Risks
  • Regulatory Risks
  • General Risk Factors

Legal proceedings

The Company is not aware of any pending legal proceedings that the Company believes will have, individually or in the aggregate, a material adverse effect on its consolidated financial statements.

The opening of Item 3, Legal Proceedings.5

Sources

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