DHIL (Diamond Hill Investment Group)
Insider Trading Activity
Every open-market purchase and sale reported by DHIL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-22 | L'Quentus Thomas | Director | D | — | — |
| 2026-04-22 | Nicole Renee St. Pierre | Director | D | — | — |
| 2026-04-22 | HEATHER E BRILLIANT | Chief Executive Officer | D | — | — |
| 2026-04-22 | Paula R Meyer | Director | D | — | — |
| 2026-04-22 | Austin Hawley | Director | D | — | — |
| 2026-04-22 | Richard Scott Cooley | Director | D | — | — |
| 2026-04-22 | Thomas Edward Line | Chief Financial Officer | D | — | — |
| 2026-04-22 | Jo Ann Quinif | President of DHCM | D | — | — |
| 2026-04-22 | Gordon B Fowler | Director | D | — | — |
| 2026-04-06 | Jo Ann Quinif | President of DHCM | F | — | — |
| 2026-04-06 | Austin Hawley | Director | F | — | — |
| 2026-04-06 | Thomas Edward Line | Chief Financial Officer | F | — | — |
| 2026-04-06 | HEATHER E BRILLIANT | Chief Executive Officer | F | — | — |
| 2026-03-10 | L'Quentus Thomas | Director | Buy | — | — |
| 2025-10-01 | Jo Ann Quinif | President of DHCM | A | — | — |
| 2025-09-25 | L'Quentus Thomas | Director | Sell | — | — |
| 2025-09-09 | Paula R Meyer | Director | Sell | — | — |
| 2025-07-01 | HEATHER E BRILLIANT | Chief Executive Officer | A | — | — |
| 2025-06-17 | Jo Ann Quinif | President of DHCM | MIXED | — | — |
| 2025-05-07 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-05-06 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-05-02 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-05-01 | L'Quentus Thomas | Director | A | — | — |
| 2025-05-01 | Gordon B Fowler | Director | A | — | — |
| 2025-05-01 | Nicole Renee St. Pierre | Director | A | — | — |
| 2025-05-01 | Paula R Meyer | Director | A | — | — |
| 2025-05-01 | Richard Scott Cooley | Director | MIXED | — | — |
| 2025-04-03 | Jo Ann Quinif | President of DHCM | MIXED | — | — |
| 2025-04-03 | HEATHER E BRILLIANT | Chief Executive Officer | MIXED | — | — |
| 2025-04-03 | Thomas Edward Line | Chief Financial Officer | F | — | — |
| 2025-04-01 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-03-24 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-03-14 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-03-06 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-03-03 | Richard Scott Cooley | Director | Buy | — | — |
| 2025-02-24 | Jo Ann Quinif | President of DHCM | A | — | — |
| 2025-02-24 | HEATHER E BRILLIANT | Chief Executive Officer | A | — | — |
| 2025-02-24 | Thomas Edward Line | Chief Financial Officer | A | — | — |
| 2024-12-23 | Richard Scott Cooley | Director | Buy | — | — |
| 2024-12-18 | HEATHER E BRILLIANT | Chief Executive Officer | G | — | — |
| 2024-12-11 | JAMES F LAIRD JR | Director | G | — | — |
| 2024-11-22 | JAMES F LAIRD JR | Director | Sell | — | — |
| 2024-11-18 | Paula R Meyer | Director | Sell | — | — |
| 2024-11-12 | JAMES F LAIRD JR | Director | Sell | — | — |
| 2024-11-12 | Nicole Renee St. Pierre | Director | Sell | — | — |
| 2024-11-07 | JAMES F LAIRD JR | Director | Sell | — | — |
| 2024-10-01 | HEATHER E BRILLIANT | Chief Executive Officer | F | — | — |
| 2024-09-24 | L'Quentus Thomas | Director | Sell | — | — |
| 2024-08-12 | JAMES F LAIRD JR | Director | Sell | — | — |
| 2024-07-01 | Jo Ann Quinif | President of DHCM | Buy | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 82,965 | — |
| — | Chief Executive Officer | 47,396 | — |
| — | Director | 35,152 | — |
| — | Chief Operating Officer | 33,766 | — |
| — | Director | 31,505 | — |
| — | Director | 25,210 | — |
| — | Director | 13,175 | — |
| — | Director | 12,500 | — |
| — | Director | 8,600 | — |
| — | Director | 8,000 | — |
| — | Director | 7,785 | — |
| — | Director | 7,300 | — |
| — | Director | 6,989 | — |
| — | Director | 3,215 | — |
| — | Director | 2,564 | — |
| — | Director | 727 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the DHIL quote page; the site-wide leaderboard is on the insider transactions hub.