Diamond Hill Investment's three largest insider shareholders as of March 23, 2026 are Heather E Brilliant (Chief Executive Officer, 69.49K shares), Jo Ann Quinif (President Of Dhcm, 47.19K shares), Thomas Edward Line (Chief Financial Officer, 14.11K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Heather E Brilliant | Chief Executive Officer | 69,489 | 0 | 01 Jul, 2025 |
| Jo Ann Quinif | President Of Dhcm | 47,191 | 0 | 01 Oct, 2025 |
| Thomas Edward Line | Chief Financial Officer | 14,108 | 0 | 03 Apr, 2025 |
| Richard Scott Cooley | 13,829 | 0 | 07 May, 2025 | |
| James F Jr Laird | 12,500 | 0 | 11 Dec, 2024 | |
| Gordon B Fowler | 7,713 | 0 | 01 May, 2025 | |
| Pierre Nicole Renee St. | 5,113 | 0 | 01 May, 2025 | |
| Paula R Meyer | 3,763 | 0 | 09 Sep, 2025 | |
| L'Quentus Thomas | 2,534 | 0 | 25 Sep, 2025 | |
| Mark Zinkula | 727 | 0 | 15 May, 2023 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Oct, 2025 | Jo Ann Quinif | Common | A | 21,428 | $0.00 | 47,191 | D | A |
| 23 Sep, 2025 | L'Quentus Thomas | Common | D | 250 | $141.10 | 2,534 | D | S |
| 05 Sep, 2025 | Paula R Meyer | Common | D | 350 | $141.80 | 3,763 | D | S |
| 30 Jun, 2025 | Heather E Brilliant | Common | A | 27,528 | $0.00 | 69,489 | D | A |
| 13 Jun, 2025 | Jo Ann Quinif | Common | D | 2,750 | $144.00 | 23,013 | D | S |
| 13 Jun, 2025 | Jo Ann Quinif | Common | A | 2,750 | $144.01 | 25,763 | D | P |
| 06 May, 2025 | Richard Scott Cooley | Common | A | 278 | $134.10 | 13,829 | D | P |
| 02 May, 2025 | Richard Scott Cooley | Common | A | 124 | $129.00 | 13,551 | D | P |
| 01 May, 2025 | Richard Scott Cooley | Common | A | 692 | $127.50 | 13,427 | D | P |
| 29 Apr, 2025 | L'Quentus Thomas | Common | A | 926 | $0.00 | 2,784 | D | A |
| 29 Apr, 2025 | Paula R Meyer | Common | A | 926 | $0.00 | 4,113 | D | A |
| 29 Apr, 2025 | Gordon B Fowler | Common | A | 926 | $0.00 | 7,713 | D | A |
| 29 Apr, 2025 | Pierre Nicole Renee St. | Common | A | 926 | $0.00 | 5,113 | D | A |
| 29 Apr, 2025 | Richard Scott Cooley | Common | A | 926 | $0.00 | 11,735 | D | A |
| 30 Apr, 2025 | Richard Scott Cooley | Common | A | 1,000 | $124.50 | 12,735 | D | P |
| 01 Apr, 2025 | Heather E Brilliant | Common | A | 167 | $121.41 | 44,189 | D | J |
| 01 Apr, 2025 | Jo Ann Quinif | Common | A | 167 | $121.41 | 27,899 | D | J |
| 01 Apr, 2025 | Thomas Edward Line | Common | D | 795 | $142.84 | 14,108 | D | F |
| 01 Apr, 2025 | Jo Ann Quinif | Common | D | 2,136 | $142.84 | 25,763 | D | F |
| 01 Apr, 2025 | Heather E Brilliant | Common | D | 2,228 | $142.84 | 41,961 | D | F |