9 insiders reported 52 Form 4 transactions for DIAMOND HILL INVESTMENT GROUP INC (DHIL) over the past 18 months (most recent 2026-04-22). Recent activity: Meyer Paula R (Director) Sell 3,763 shares, Cooley Richard Scott (Director) Sell 13,829 shares, Line Thomas Edward (Chief Financial Officer) Sell 13,444 shares, St. Pierre Nicole Renee (Director) Sell 5,113 shares, BRILLIANT HEATHER E (Chief Executive Officer) Sell 66,680 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-04-22 | Meyer Paula R | Director | Sell | 3,763 | $658,525 |
| 2026-04-22 | Cooley Richard Scott | Director | Sell | 13,829 | $2.4M |
| 2026-04-22 | Line Thomas Edward | Chief Financial Officer | Sell | 13,444 | $2.4M |
| 2026-04-22 | St. Pierre Nicole Renee | Director | Sell | 5,113 | $894,775 |
| 2026-04-22 | BRILLIANT HEATHER E | Chief Executive Officer | Sell | 66,680 | $11.7M |
| 2026-04-22 | Thomas L'Quentus | Director | Sell | 2,615 | $457,543 |
| 2026-04-22 | Quinif Jo Ann | President of DHCM | Sell | 45,111 | $7.9M |
| 2026-04-22 | Fowler Gordon B | Director | Sell | 7,713 | $1.3M |
| 2026-04-22 | Hawley Austin | Director | Sell | 77,469 | $13.6M |
| 2026-04-22 | Line Thomas Edward | Chief Financial Officer | Sell | 1,294 | $226,450 |
| 2026-04-22 | BRILLIANT HEATHER E | Chief Executive Officer | Sell | 473 | $82,775 |
| 2026-04-22 | Quinif Jo Ann | President of DHCM | Sell | 816 | $142,800 |
| 2026-04-06 | Line Thomas Edward | Chief Financial Officer | Sell | 664 | $114,274 |
| 2026-04-06 | BRILLIANT HEATHER E | Chief Executive Officer | Sell | 2,809 | $483,429 |
| 2026-04-06 | Quinif Jo Ann | President of DHCM | Sell | 2,080 | $357,968 |
| 2026-04-06 | Hawley Austin | Director | Sell | 1,181 | $203,250 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 7 | $1,006 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 14 | $2,107 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 11 | $1,753 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 12 | $1,768 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 12 | $1,786 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 13 | $1,805 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 7 | $996 |
| 2026-03-10 | Thomas L'Quentus | Director | Buy | 6 | $988 |
| 2025-10-01 | Quinif Jo Ann | President of DHCM | Buy | 21,428 | $0 |
Source: SEC Form 4 filings · as of 2026-04-22