DIAMOND HILL INVESTMENT GROUP INC

Nasdaq:DHIL

Investment Advice·COLUMBUS, OH

Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is a tasteless, odorless, strong, brittle solid, a poor conductor of electricity, colorless in pure form, and insoluble in water.

CEO

Brilliant Heather E

Financials

20 shown

Type	Period	Ended	Filed
10-K	FY 2025	12/31/25	2/26/26	→
10-Q	Q3 2025	9/30/25	10/30/25	→
10-Q	Q2 2025	6/30/25	7/29/25	→
10-Q	Q1 2025	3/31/25	4/29/25	→
10-K	FY 2024	12/31/24	2/26/25	→
10-Q	Q3 2024	9/30/24	11/4/24	→
↓

Earnings Releases (8-K)

15 shown

Filed	Period
2/26/26	Q1 FY2026	→
10/30/25	Q3 FY2025	→
7/29/25	Q2 FY2025	→
4/29/25	Q1 FY2025	→
2/26/25	Q1 FY2025	→
11/4/24	Q4 FY2024	→
↓

News (8-K)

65 shown

Filed	Type	Description
3/4/26	Other	Other Events	→
3/3/26	Vote	Submission of Matters to a Vote of Security Holders	→
2/25/26	Exec Change	Departure or Appointment of Directors or Certain Officers	→
2/24/26	Other	Other Events	→
2/17/26	Other	Other Events	→
2/3/26	Other	Other Events	→
↓

Prospectuses & Registrations

22 shown

Filed	Form	Description
4/29/25	S-8 POS	S-8 POS	→
4/29/25	S-8	S-8	→
3/28/23	ARS	ARS	→
6/14/22	S-8	S-8	→
5/12/21	S-8	S-8	→
3/14/16	ARS	ARS	→
↓

Filing History(1002 filings)

TypeDateAccessionPeriodSize

8-K

Mar 4, 2026

0001193125-26-0914658-K

Mar 4, 2026

248.9 KB

8-K

Mar 3, 2026

0000950103-26-003145FORM 8-K

Mar 3, 2026

222.8 KB

8-K

Feb 26, 2026

0001193125-26-0766108-K

Feb 26, 2026

686.6 KB

10-K

Feb 26, 2026

0001193125-26-07660410-K

Dec 31, 2025

13.7 MB

8-K

Feb 25, 2026

0000950103-26-002651FORM 8-K

Feb 20, 2026

227.3 KB

8-K

Feb 24, 2026

0000950103-26-002587FORM 8-K

Feb 24, 2026

230.6 KB

DEFA14A

Feb 17, 2026

0000950103-26-002219DEFA14A

—

45.1 KB

8-K

Feb 17, 2026

0000950103-26-002190FORM 8-K

Feb 10, 2026

223.0 KB

8-K

Feb 3, 2026

0001193125-26-0354848-K

Feb 3, 2026

249.0 KB

DEFA14A

Jan 28, 2026

0000950103-26-001113FORM DEFA14A

—

62.9 KB

8-K

Jan 28, 2026

0000950103-26-001111FORM 8-K

Jan 28, 2026

239.7 KB

DEFM14A

Jan 28, 2026

0001140361-26-002681DEFM14A

—

4.7 MB

PREM14A

Jan 16, 2026

0001140361-26-001516PREM14A

Jan 16, 2026

4.8 MB

8-K

Jan 5, 2026

0001193125-26-0024008-K

Jan 5, 2026

248.0 KB

DEFA14A

Dec 18, 2025

0000950103-25-016343FORM DEFA14A

—

49.2 KB

DEFA14A

Dec 11, 2025

0000950103-25-016040FORM DEFA14A

—

388.7 KB

DEFA14A

Dec 11, 2025

0000950103-25-016038FORM DEFA14A

—

17.6 KB

DEFA14A

Dec 11, 2025

0000950103-25-016037FORM DEFA14A

—

18.4 KB

DEFA14A

Dec 11, 2025

0000950103-25-016035FORM DEFA14A

—

25.7 KB

DEFA14A

Dec 11, 2025

0000950103-25-016034FORM DEFA14A

—

20.7 KB

DEFA14A

Dec 11, 2025

0000950103-25-015990FORM DEFA14A

—

806.4 KB

8-K

Dec 11, 2025

0000950103-25-015986FORM 8-K

Dec 10, 2025

1.1 MB

8-K

Dec 2, 2025

0001193125-25-3052258-K

Dec 2, 2025

248.0 KB

8-K

Nov 4, 2025

0001193125-25-2646438-K

Nov 4, 2025

248.0 KB

10-Q

Oct 30, 2025

0001193125-25-25751810-Q

Sep 30, 2025

8.7 MB

25 filings shown

Filed	Form	Description
9/5/25	144	144	→
6/17/25	144	144	→
5/14/25	144	144	→
5/6/25	144	144	→
4/23/25	SCHEDULE 13G/A	SCHEDULE 13G/A	→
11/18/24	144	144	→
↓

DIAMOND HILL INVESTMENT GROUP INC

Financials

Earnings Releases (8-K)

News (8-K)

Prospectuses & Registrations

Filing History(1002 filings)

Proxies

Ownership

Other Filings

Filed	Form	Description
10/29/25	3	3	→
10/1/25	4	4	→
9/25/25	4	4	→
9/9/25	4	4	→
7/1/25	4	4	→
6/17/25	4	4	→
↓