DIAMOND HILL INVESTMENT GROUP INC — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Quinif Jo Ann | President of DHCM | Award / Grant | 21,428 | — | — | 47,191 | Oct 1, 2025 |
| Thomas L'Quentus | — | Sale | 250 | $141.10 | $35,275 | 2,534 | Sep 23, 2025 |
| Meyer Paula R | — | Sale | 350 | $141.80 | $49,630 | 3,763 | Sep 5, 2025 |
| BRILLIANT HEATHER E | Chief Executive Officer | Award / Grant | 27,528 | — | — | 69,489 | Jun 30, 2025 |
| Quinif Jo Ann | President of DHCM | Purchase | 2,750 | $144.01 | $396,028 | 25,763 | Jun 13, 2025 |
| Cooley Richard Scott | — | Purchase | 278 | $134.10 | $37,280 | 13,829 | May 6, 2025 |
| Cooley Richard Scott | — | Purchase | 124 | $129.00 | $15,996 | 13,551 | May 2, 2025 |
| Cooley Richard Scott | — | Purchase | 692 | $127.50 | $88,230 | 13,427 | May 1, 2025 |
| Cooley Richard Scott | — | Award / Grant | 926 | — | — | 11,735 | Apr 30, 2025 |
| Thomas L'Quentus | — | Award / Grant | 926 | — | — | 2,784 | Apr 29, 2025 |
| St. Pierre Nicole Renee | — | Award / Grant | 926 | — | — | 5,113 | Apr 29, 2025 |
| Meyer Paula R | — | Award / Grant | 926 | — | — | 4,113 | Apr 29, 2025 |
| Fowler Gordon B | — | Award / Grant | 926 | — | — | 7,713 | Apr 29, 2025 |
| Line Thomas Edward | Chief Financial Officer | Tax Withholding | 795 | $142.84 | $113,558 | 14,108 | Apr 1, 2025 |
| Quinif Jo Ann | President of DHCM | Other | 167 | $121.41 | $20,275 | 27,899 | Apr 1, 2025 |
| BRILLIANT HEATHER E | Chief Executive Officer | Tax Withholding | 2,228 | $142.84 | $318,248 | 41,961 | Apr 1, 2025 |
| Cooley Richard Scott | — | Purchase | 100 | $142.50 | $14,250 | 10,809 | Mar 31, 2025 |
| Cooley Richard Scott | — | Purchase | 50 | $143.50 | $7,175 | 10,709 | Mar 21, 2025 |
| Cooley Richard Scott | — | Purchase | 500 | $144.00 | $72,000 | 10,659 | Mar 12, 2025 |
| Cooley Richard Scott | — | Purchase | 500 | $146.00 | $73,000 | 10,159 | Mar 5, 2025 |
| Cooley Richard Scott | — | Purchase | 272 | $144.00 | $39,168 | 9,659 | Feb 28, 2025 |
| Quinif Jo Ann | President of DHCM | Award / Grant | 6,840 | — | — | 27,732 | Feb 21, 2025 |
| Line Thomas Edward | Chief Financial Officer | Award / Grant | 2,052 | — | — | 14,903 | Feb 21, 2025 |
| BRILLIANT HEATHER E | Chief Executive Officer | Award / Grant | 8,550 | — | — | 44,022 | Feb 21, 2025 |
| Cooley Richard Scott | — | Purchase | 1,000 | $152.25 | $152,250 | 9,387 | Dec 20, 2024 |
| BRILLIANT HEATHER E | Chief Executive Officer | Gift | 1,567 | — | — | 35,472 | Dec 17, 2024 |
| LAIRD JAMES F JR | — | Gift | 500 | — | — | 12,500 | Dec 10, 2024 |
| LAIRD JAMES F JR | — | Sale | 6,000 | $170.26 | $1,021,560 | 13,000 | Nov 21, 2024 |
| Meyer Paula R | — | Sale | 300 | $169.00 | $50,700 | 3,187 | Nov 14, 2024 |
| LAIRD JAMES F JR | — | Sale | 1,000 | $171.07 | $171,070 | 19,000 | Nov 11, 2024 |
| St. Pierre Nicole Renee | — | Sale | 300 | $167.00 | $50,100 | 4,187 | Nov 8, 2024 |
| LAIRD JAMES F JR | — | Sale | 5,000 | $168.53 | $842,650 | 20,000 | Nov 6, 2024 |
| BRILLIANT HEATHER E | Chief Executive Officer | Tax Withholding | 9,850 | $161.61 | $1,591,859 | 37,039 | Oct 1, 2024 |
| Thomas L'Quentus | — | Sale | 250 | $161.64 | $40,410 | 1,858 | Sep 23, 2024 |
| LAIRD JAMES F JR | — | Sale | 3,000 | $150.20 | $450,600 | 25,000 | Aug 8, 2024 |
| BRILLIANT HEATHER E | Chief Executive Officer | Purchase | 250 | $139.38 | $34,845 | 46,589 | Jun 28, 2024 |
| Quinif Jo Ann | President of DHCM | Purchase | 400 | $139.24 | $55,696 | 20,892 | Jun 27, 2024 |
| Cooley Richard Scott | — | Purchase | 500 | $150.00 | $75,000 | 8,387 | Jun 3, 2024 |
| LAIRD JAMES F JR | — | Sale | 2,500 | $158.40 | $396,000 | 28,000 | May 15, 2024 |
| Line Thomas Edward | Chief Financial Officer | Sale | 500 | $160.05 | $80,025 | 12,951 | May 13, 2024 |
| Thomas L'Quentus | — | Award / Grant | 723 | — | — | 2,108 | May 9, 2024 |
| St. Pierre Nicole Renee | — | Award / Grant | 723 | — | — | 4,487 | May 9, 2024 |
| Meyer Paula R | — | Award / Grant | 723 | — | — | 3,487 | May 9, 2024 |
| Cooley Richard Scott | — | Award / Grant | 723 | — | — | 7,887 | May 9, 2024 |
| Quinif Jo Ann | President of DHCM | Other | 156 | $131.04 | $20,442 | 22,124 | Apr 1, 2024 |
| Line Thomas Edward | Chief Financial Officer | Tax Withholding | 739 | $154.17 | $113,932 | 16,451 | Apr 1, 2024 |
| BRILLIANT HEATHER E | Chief Executive Officer | Tax Withholding | 1,528 | $154.17 | $235,572 | 46,339 | Apr 1, 2024 |
| Quinif Jo Ann | President of DHCM | Award / Grant | 5,864 | — | — | 21,968 | Feb 16, 2024 |
| BRILLIANT HEATHER E | Chief Executive Officer | Award / Grant | 6,516 | — | — | 47,711 | Feb 16, 2024 |
| Line Thomas Edward | Chief Financial Officer | Tax Withholding | 3,681 | $165.59 | $609,537 | 15,235 | Feb 16, 2024 |