Knife River Corporation (KNF) has 15 known insider and institutional holders on record. The largest holder is Gray Brian R. with 84,747 shares. Other notable holders include Hastings Trevor J and Liepitz Karl A.
Over the last 12 months, insiders have made 21 transactions in KNF stock — 14 buys (valued at RSU Award) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
KNF Insider Ownership
Top Holder
Gray Brian R.
84,747 shares
Buys (12 mo)
14
$0.00 value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Gray Brian R. |
President & CEO |
84,747 |
2026-03-09 |
|
| 2 |
Hastings Trevor J |
Vice President & COO |
46,760 |
2026-03-05 |
|
| 3 |
Liepitz Karl A |
VP, Chief Legal Officer & Sec. |
44,312 |
2026-03-05 |
|
| 4 |
Ring Nathan W |
Vice President & CFO |
30,530 |
2026-03-05 |
|
| 5 |
Moss Patricia L |
Director |
29,834 |
2025-05-27 |
|
| 6 |
Christenson Nancy K. |
VP of Administration |
25,776 |
2025-03-03 |
|
| 7 |
Pladsen Glenn R. |
VP & Chief Excellence Officer |
22,094 |
2026-03-05 |
|
| 8 |
Carmona-alvarez German |
Director |
6,985 |
2025-05-27 |
|
| 9 |
Sandbrook William J |
Director |
5,695 |
2025-05-27 |
|
| 10 |
Kadrmas Marney L. |
VP & Chief Accounting Officer |
4,917 |
2026-03-05 |
|
| 11 |
Lachapelle Sarah L. |
VP & Chief People Officer |
4,578 |
2026-03-05 |
|
| 12 |
Chiodo Patricia |
Director |
3,513 |
2025-05-27 |
|
| 13 |
Hill Thomas W. |
Director |
3,456 |
2025-05-27 |
|
| 14 |
Fagg Karen B |
Director |
1,062 |
2026-04-01 |
|
| 15 |
Stevens Sarah L. |
VP & Chief People Officer |
8 |
2025-04-25 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-31 |
Fagg Karen B |
Director |
RSU Award |
222 |
- |
- |
| 2026-03-06 |
Gray Brian R. |
President & CEO |
RSU Award |
20,955 |
- |
- |
| 2026-03-04 |
Lachapelle Sarah L. |
VP & Chief People Officer |
RSU Award |
2,713 |
- |
- |
| 2026-03-04 |
Kadrmas Marney L. |
VP & Chief Accounting Officer |
RSU Award |
1,199 |
- |
- |
| 2026-03-04 |
Pladsen Glenn R. |
VP & Chief Excellence Officer |
RSU Award |
2,950 |
- |
- |
| 2026-03-04 |
Liepitz Karl A |
VP, Chief Legal Officer & Sec. |
RSU Award |
4,611 |
- |
- |
| 2026-03-04 |
Hastings Trevor J |
Vice President & COO |
RSU Award |
6,130 |
- |
- |
| 2026-03-04 |
Ring Nathan W |
Vice President & CFO |
RSU Award |
5,211 |
- |
- |
| 2026-02-12 |
Kadrmas Marney L. |
VP & Chief Accounting Officer |
Tax Withholding of RSU |
1,232 |
$81.74 |
$100.7K |
| 2026-02-12 |
Pladsen Glenn R. |
VP & Chief Excellence Officer |
Tax Withholding of RSU |
1,569 |
$81.74 |
$128.25K |
| 2026-02-12 |
Gray Brian R. |
President & CEO |
Tax Withholding of RSU |
19,572 |
$81.74 |
$1.6M |
| 2026-02-12 |
Liepitz Karl A |
VP, Chief Legal Officer & Sec. |
Tax Withholding of RSU |
8,648 |
$81.74 |
$706.89K |
| 2026-02-12 |
Hastings Trevor J |
Vice President & COO |
Tax Withholding of RSU |
4,599 |
$81.74 |
$375.92K |
| 2026-02-12 |
Ring Nathan W |
Vice President & CFO |
Tax Withholding of RSU |
4,336 |
$81.74 |
$354.42K |
| 2025-05-22 |
Carmona-alvarez German |
Director |
RSU Award |
1,551 |
- |
- |
| 2025-05-22 |
Sandbrook William J |
Director |
RSU Award |
1,551 |
- |
- |
| 2025-05-22 |
Chiodo Patricia |
Director |
RSU Award |
1,551 |
- |
- |
| 2025-05-22 |
Hill Thomas W. |
Director |
RSU Award |
1,551 |
- |
- |
| 2025-05-22 |
Fagg Karen B |
Director |
RSU Award |
1,810 |
- |
- |
| 2025-05-22 |
Moss Patricia L |
Director |
RSU Award |
1,551 |
- |
- |
| 2025-04-19 |
Stevens Sarah L. |
VP & Chief People Officer |
Unknown |
- |
- |
- |
