There have been 50 recent insider transactions recorded for Diamond Hill Investment Group, Inc. (DHIL), including 27 buys and 19 sells. Total insider buying was valued at $710.02K and total insider selling at $6.6M.
Notable insiders with recent activity include Line Thomas Edward, Brilliant Heather E, Quinif Jo Ann. Insider transactions can provide insights into how company leadership views the stock's valuation and future prospects.
Insider Transactions — DHIL
| Date |
Name |
Role |
Transaction |
Shares |
Avg. Price |
Value |
Shares Owned |
| 2026-04-01 |
Line Thomas Edward |
Chief Financial Officer |
Tax Withholding of RSU |
664 |
$172.10 |
$114.27K |
13,444 |
| 2026-04-01 |
Brilliant Heather E |
Chief Executive Officer |
Tax Withholding of RSU |
2,809 |
$172.10 |
$483.43K |
66,680 |
| 2026-04-01 |
Quinif Jo Ann |
President of Dhcm |
Tax Withholding of RSU |
2,080 |
$172.10 |
$357.97K |
45,111 |
| 2026-04-01 |
Hawley Austin |
Director |
Tax Withholding of RSU |
1,181 |
$172.10 |
$203.25K |
77,469 |
| 2025-10-29 |
Nordin Diane C |
Director |
Unknown |
- |
- |
- |
- |
| 2025-10-01 |
Quinif Jo Ann |
President of Dhcm |
RSU Award |
21,428 |
- |
- |
47,191 |
| 2025-09-23 |
Thomas L'quentus |
Director |
Informative Sell |
250 |
$141.10 |
$35.28K |
2,534 |
| 2025-09-12 |
Thomas L'quentus |
Director |
Informative Buy |
13 |
$143.00 |
$1.86K |
2,602 |
| 2025-09-05 |
Meyer Paula R |
Director |
Informative Sell |
350 |
$141.80 |
$49.63K |
3,763 |
| 2025-06-30 |
Brilliant Heather E |
Chief Executive Officer |
RSU Award |
27,528 |
- |
- |
69,489 |
| 2025-06-13 |
Thomas L'quentus |
Director |
Informative Buy |
12 |
$146.51 |
$1.76K |
2,589 |
| 2025-06-13 |
Quinif Jo Ann |
President of Dhcm |
Informative Sell |
2,750 |
$144.00 |
$396K |
23,013 |
| 2025-05-27 |
Hawley Austin |
Director |
Unknown |
- |
- |
- |
78,650 |
| 2025-05-06 |
Cooley Richard Scott |
Director |
Informative Buy |
278 |
$134.10 |
$37.28K |
13,829 |
| 2025-05-02 |
Cooley Richard Scott |
Director |
Informative Buy |
124 |
$129.00 |
$16K |
13,551 |
| 2025-05-01 |
Cooley Richard Scott |
Director |
Informative Buy |
692 |
$127.50 |
$88.23K |
13,427 |
| 2025-04-30 |
Cooley Richard Scott |
Director |
Informative Buy |
1,000 |
$124.50 |
$124.5K |
12,735 |
| 2025-04-29 |
Meyer Paula R |
Director |
RSU Award |
926 |
- |
- |
4,113 |
| 2025-04-29 |
Cooley Richard Scott |
Director |
RSU Award |
926 |
- |
- |
11,735 |
| 2025-04-29 |
St. Pierre Nicole Renee |
Director |
RSU Award |
926 |
- |
- |
5,113 |
| 2025-04-29 |
Thomas L'quentus |
Director |
RSU Award |
926 |
- |
- |
2,784 |
| 2025-04-29 |
Fowler Gordon B |
Director |
RSU Award |
926 |
- |
- |
7,713 |
| 2025-04-01 |
Line Thomas Edward |
Chief Financial Officer |
Tax Withholding of RSU |
795 |
$142.84 |
$113.56K |
14,108 |
| 2025-04-01 |
Brilliant Heather E |
Chief Executive Officer |
Tax Withholding of RSU |
2,228 |
$142.84 |
$318.25K |
41,961 |
| 2025-04-01 |
Quinif Jo Ann |
President of Dhcm |
Tax Withholding of RSU |
2,136 |
$142.84 |
$305.11K |
25,763 |
| 2025-03-31 |
Cooley Richard Scott |
Director |
Informative Buy |
100 |
$142.50 |
$14.25K |
10,809 |
| 2025-03-21 |
Thomas L'quentus |
Director |
Informative Buy |
12 |
$146.50 |
$1.76K |
2,577 |
| 2025-03-21 |
Cooley Richard Scott |
Director |
Informative Buy |
50 |
$143.50 |
$7.18K |
10,709 |
| 2025-03-12 |
Cooley Richard Scott |
Director |
Informative Buy |
500 |
$144.00 |
$72K |
10,659 |
| 2025-03-05 |
Cooley Richard Scott |
Director |
Informative Buy |
500 |
$146.00 |
$73K |
10,159 |
| 2025-02-28 |
Cooley Richard Scott |
Director |
Informative Buy |
272 |
$144.00 |
$39.17K |
9,659 |
| 2025-02-21 |
Line Thomas Edward |
Chief Financial Officer |
RSU Award |
2,052 |
- |
- |
14,903 |
| 2025-02-21 |
Brilliant Heather E |
Chief Executive Officer |
RSU Award |
8,550 |
- |
- |
44,022 |
| 2025-02-21 |
Quinif Jo Ann |
President of Dhcm |
RSU Award |
6,840 |
- |
- |
27,732 |
| 2024-12-20 |
Cooley Richard Scott |
Director |
Informative Buy |
1,000 |
$152.25 |
$152.25K |
9,387 |
| 2024-12-17 |
Brilliant Heather E |
Chief Executive Officer |
Gift (Given) |
1,567 |
- |
- |
35,472 |
| 2024-12-10 |
Laird James F Jr |
Director |
Gift (Given) |
500 |
- |
- |
12,500 |
| 2024-12-06 |
Thomas L'quentus |
Director |
Informative Buy |
11 |
$165.07 |
$1.82K |
2,565 |
| 2024-11-21 |
Laird James F Jr |
Director |
Informative Sell |
6,000 |
$170.26 |
$1.02M |
13,000 |
| 2024-11-14 |
Meyer Paula R |
Director |
Informative Sell |
300 |
$169.00 |
$50.7K |
3,187 |
| 2024-11-11 |
Laird James F Jr |
Director |
Informative Sell |
1,000 |
$171.07 |
$171.07K |
19,000 |
| 2024-11-08 |
St. Pierre Nicole Renee |
Director |
Informative Sell |
300 |
$167.00 |
$50.1K |
4,187 |
| 2024-11-06 |
Laird James F Jr |
Director |
Informative Sell |
5,000 |
$168.53 |
$842.65K |
20,000 |
| 2024-10-01 |
Brilliant Heather E |
Chief Executive Officer |
Tax Withholding of RSU |
9,850 |
$161.61 |
$1.59M |
37,039 |
| 2024-09-23 |
Thomas L'quentus |
Director |
Informative Sell |
250 |
$161.64 |
$40.41K |
1,858 |
| 2024-09-13 |
Thomas L'quentus |
Director |
Informative Buy |
14 |
$152.34 |
$2.13K |
2,555 |
| 2024-08-08 |
Laird James F Jr |
Director |
Informative Sell |
3,000 |
$150.20 |
$450.6K |
25,000 |
| 2024-07-29 |
Fowler Gordon B |
Director |
Disposition |
- |
- |
- |
6,787 |
| 2024-06-28 |
Brilliant Heather E |
Chief Executive Officer |
Informative Buy |
300 |
$140.00 |
$42K |
46,889 |
| 2024-06-27 |
Brilliant Heather E |
Chief Executive Officer |
Informative Buy |
250 |
$139.38 |
$34.85K |
46,589 |
■ Informative Buy/Sell — open market transaction (most significant)
■ Uninformative Buy — award, option exercise, conversion
■ Uninformative Sell — tax withholding, award vest sale
■ Neutral — gift, trust, expiry
