KNF Knife River Corp
NYSE · SEC CIK 1955520 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $0 0 sales by 0 insiders
- Filings on record
- 65 since 2023-06-02, latest 2026-07-01 17:20
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| LaChapelle Sarah L. | VP, CHRO | — | — |
| Kadrmas Marney L. | VP, CAO | — | — |
| Pladsen Glenn R. | VP, Chief Excellence Off | — | — |
| Gray Brian R. | Pres, CEO, Dir | — | — |
| Carmona-Alvarez German | Dir | — | — |
| Liepitz Karl A | VP, CLO, Sec | — | — |
| Hastings Trevor J | VP, COO | — | — |
| Ring Nathan W | VP, CFO | — | — |
| SANDBROOK WILLIAM J | Dir | — | — |
| Chiodo Patricia | Dir | — | — |
Transactions 68
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-21 17:14 | 2026-05-20 | KNF | SANDBROOK WILLIAM J | Dir | A - Grant | $0.00 | +2,040 | 7,735 | +36% | $0 | |
| 2026-05-21 17:13 | 2026-05-20 | KNF | MOSS PATRICIA L | Dir | A - Grant | $0.00 | +2,040 | 31.9K | +7% | $0 | |
| 2026-05-21 17:13 | 2026-05-20 | KNF | Hill Thomas W. | Dir | A - Grant | $0.00 | +2,040 | 5,496 | +59% | $0 | |
| 2026-05-21 17:12 | 2026-05-20 | KNF | Fagg Karen B | Dir | A - Grant | $0.00 | +2,380 | 33.3K | +8% | $0 | |
| 2026-05-21 17:11 | 2026-05-20 | KNF | Chiodo Patricia | Dir | A - Grant | $0.00 | +2,040 | 5,553 | +58% | $0 | |
| 2026-05-21 17:10 | 2026-05-20 | KNF | Carmona-Alvarez German | Dir | A - Grant | $0.00 | +2,040 | 9,025 | +29% | $0 | |
| 2026-03-09 | 2026-03-06 | KNF | Gray Brian R. | Pres, CEO, Dir | A - Grant | $0.00 | +21.0K | 84.7K | +33% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | LaChapelle Sarah L. | VP, CHRO | A - Grant | $0.00 | +2,713 | 4,578 | +145% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | Ring Nathan W | VP, CFO | A - Grant | $0.00 | +5,211 | 30.5K | +21% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | Liepitz Karl A | VP, CLO, Sec | A - Grant | $0.00 | +4,611 | 44.3K | +12% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | Hastings Trevor J | VP, COO | A - Grant | $0.00 | +6,130 | 46.8K | +15% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | Kadrmas Marney L. | VP, CAO | A - Grant | $0.00 | +1,199 | 4,917 | +32% | $0 | |
| 2026-03-05 | 2026-03-04 | KNF | Pladsen Glenn R. | VP, Chief Excellence Off | A - Grant | $0.00 | +2,950 | 22.1K | +15% | $0 | |
| 2026-02-17 | 2026-02-12 | KNF | Liepitz Karl A | VP, CLO, Sec | F - Tax | $81.74 | -8,648 | 39.7K | -18% | -$706.9K | |
| M | 2026-02-17 | 2026-02-12 | KNF | Pladsen Glenn R. | VP, Chief Excellence Off | F - Tax | $81.74 | -2,954 | 20.7K | -12% | -$241.5K |
| M | 2026-02-17 | 2026-02-12 | KNF | Gray Brian R. | Pres, CEO, Dir | F - Tax | $81.74 | -29.6K | 83.4K | -26% | -$2.42M |
| 2026-02-17 | 2026-02-12 | KNF | Kadrmas Marney L. | VP, CAO | F - Tax | $81.74 | -1,232 | 3,718 | -25% | -$100.7K | |
| M | 2026-02-17 | 2026-02-12 | KNF | Hastings Trevor J | VP, COO | F - Tax | $81.74 | -7,479 | 40.6K | -16% | -$611.3K |
| M | 2026-02-17 | 2026-02-12 | KNF | Ring Nathan W | VP, CFO | F - Tax | $81.74 | -6,258 | 25.3K | -20% | -$511.5K |
| 2025-05-27 | 2025-05-22 | KNF | MOSS PATRICIA L | Dir | A - Grant | $0.00 | +1,551 | 29.8K | +5% | $0 | |
| 2025-05-27 | 2025-05-22 | KNF | Carmona-Alvarez German | Dir | A - Grant | $0.00 | +1,551 | 6,985 | +29% | $0 | |
| 2025-05-27 | 2025-05-22 | KNF | Fagg Karen B | Dir | A - Grant | $0.00 | +1,810 | 30.9K | +6% | $0 | |
| 2025-05-27 | 2025-05-22 | KNF | Chiodo Patricia | Dir | A - Grant | $0.00 | +1,551 | 3,513 | +79% | $0 | |
| 2025-05-27 | 2025-05-22 | KNF | SANDBROOK WILLIAM J | Dir | A - Grant | $0.00 | +1,551 | 5,695 | +37% | $0 | |
| 2025-05-27 | 2025-05-22 | KNF | Hill Thomas W. | Dir | A - Grant | $0.00 | +1,551 | 3,456 | +81% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Pladsen Glenn R. | VP, Chief Excellence Off | A - Grant | $0.00 | +1,786 | 23.4K | +8% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Pladsen Glenn R. | VP, Chief Excellence Off | F - Tax | $94.73 | -1,292 | 22.1K | -6% | -$122.4K | |
| 2025-03-03 | 2025-02-27 | KNF | Kadrmas Marney L. | VP, CAO | A - Grant | $0.00 | +709 | 4,950 | +17% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Christenson Nancy K. | VP of Administration | F - Tax | $94.73 | -1,583 | 25.8K | -6% | -$150.0K | |
| 2025-03-03 | 2025-02-27 | KNF | Ring Nathan W | VP, CFO | A - Grant | $0.00 | +3,114 | 33.3K | +10% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Ring Nathan W | VP, CFO | F - Tax | $94.73 | -1,698 | 31.6K | -5% | -$160.9K | |
| 2025-03-03 | 2025-02-27 | KNF | Hastings Trevor J | VP, COO | A - Grant | $0.00 | +3,114 | 52.1K | +6% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Hastings Trevor J | VP, COO | F - Tax | $94.73 | -4,016 | 48.1K | -8% | -$380.4K | |
| 2025-03-03 | 2025-02-28 | KNF | Gray Brian R. | Pres, CEO, Dir | A - Grant | $0.00 | +12.6K | 93.4K | +16% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Liepitz Karl A | VP, CLO, Sec | A - Grant | $0.00 | +2,770 | 55.4K | +5% | $0 | |
| 2025-03-03 | 2025-02-27 | KNF | Liepitz Karl A | VP, CLO, Sec | F - Tax | $94.73 | -7,083 | 48.3K | -13% | -$671.0K | |
| 2024-06-28 | 2024-06-27 | KNF | Chiodo Patricia | Dir | A - Grant | $0.00 | +1,962 | 1,962 | New | $0 | |
| M | 2024-05-16 | 2024-05-15 | KNF | Fagg Karen B | Dir | A - Grant | $21.19 | +3,063 | 29.1K | +12% | +$64.9K |
| M | 2024-05-16 | 2024-05-15 | KNF | MOSS PATRICIA L | Dir | A - Grant | $21.17 | +2,625 | 27.6K | +11% | +$55.6K |
| M | 2024-05-16 | 2024-05-15 | KNF | SANDBROOK WILLIAM J | Dir | A - Grant | $21.17 | +2,625 | 4,144 | +173% | +$55.6K |
| M | 2024-05-16 | 2024-05-15 | KNF | Carmona-Alvarez German | Dir | A - Grant | $21.17 | +2,625 | 4,714 | +126% | +$55.6K |
| 2024-05-16 | 2024-05-15 | KNF | Hill Thomas W. | Dir | A - Grant | $0.00 | +1,905 | 1,905 | New | $0 | |
| I | 2024-03-04 | 2024-02-29 | KNF | Gray Brian R. | Pres, CEO, Dir | P - Purchase | $73.65 | +1 | 8,167 | +0.0% | +$73.65 |
| 2024-02-26 | 2024-02-22 | KNF | Pladsen Glenn R. | VP of Support Services | A - Grant | $0.00 | +2,153 | 22.5K | +11% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Pladsen Glenn R. | VP of Support Services | F - Tax | $72.55 | -941 | 21.6K | -4% | -$68.3K | |
| 2024-02-26 | 2024-02-22 | KNF | Hastings Trevor J | VP, COO | A - Grant | $0.00 | +4,805 | 52.3K | +10% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Hastings Trevor J | VP, COO | F - Tax | $72.55 | -3,280 | 49.0K | -6% | -$238.0K | |
| 2024-02-26 | 2024-02-22 | KNF | Kadrmas Marney L. | CAO | A - Grant | $0.00 | +1,050 | 4,241 | +33% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Liepitz Karl A | VP, CLO, Sec | F - Tax | $72.55 | -5,243 | 52.7K | -9% | -$380.4K | |
| 2024-02-26 | 2024-02-22 | KNF | Liepitz Karl A | VP, CLO, Sec | A - Grant | $0.00 | +4,348 | 57.9K | +8% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Christenson Nancy K. | VP of Administration | F - Tax | $72.55 | -1,380 | 27.4K | -5% | -$100.1K | |
| 2024-02-26 | 2024-02-22 | KNF | Christenson Nancy K. | VP of Administration | A - Grant | $0.00 | +2,153 | 28.7K | +8% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Ring Nathan W | VP, CFO | A - Grant | $0.00 | +4,805 | 31.7K | +18% | $0 | |
| 2024-02-26 | 2024-02-22 | KNF | Ring Nathan W | VP, CFO | F - Tax | $72.55 | -1,508 | 30.2K | -5% | -$109.4K | |
| 2024-02-26 | 2024-02-22 | KNF | Gray Brian R. | Pres, CEO, Dir | A - Grant | $0.00 | +17.8K | 80.8K | +28% | $0 | |
| 2023-11-16 | 2023-11-15 | KNF | Carmona-Alvarez German | Dir | A - Grant | $57.57 | +2,605 | 2,809 | +1,277% | +$150.0K | |
| 2023-11-16 | 2023-11-15 | KNF | Fagg Karen B | Dir | A - Grant | $57.57 | +2,858 | 26.1K | +12% | +$164.5K | |
| 2023-11-16 | 2023-11-15 | KNF | EVERIST THOMAS S | Dir | A - Grant | $57.57 | +2,605 | 30.3K | +9% | +$150.0K | |
| 2023-11-16 | 2023-11-15 | KNF | SANDBROOK WILLIAM J | Dir | A - Grant | $57.57 | +1,519 | 1,519 | New | +$87.4K | |
| 2023-11-16 | 2023-11-15 | KNF | MOSS PATRICIA L | Dir | A - Grant | $57.57 | +2,605 | 25.7K | +11% | +$150.0K | |
| 2023-11-13 | 2023-11-10 | KNF | MDU RESOURCES GROUP INC | 10% | J - Other | $0.00 | -5.66M | 0 | -100% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Ring Nathan W | VP, CFO | A - Grant | $0.00 | +11.0K | 26.9K | +69% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Gray Brian R. | Pres, CEO, Dir | A - Grant | $0.00 | +41.7K | 63.1K | +195% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Hastings Trevor J | VP, COO | A - Grant | $0.00 | +7,236 | 47.5K | +18% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Pladsen Glenn R. | VP of Support Services | A - Grant | $0.00 | +4,398 | 20.4K | +27% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Christenson Nancy K. | VP of Administration | A - Grant | $0.00 | +4,146 | 26.6K | +18% | $0 | |
| 2023-07-13 | 2023-07-12 | KNF | Kadrmas Marney L. | CAO | A - Grant | $0.00 | +3,191 | 3,191 | New | $0 | |
| 2023-06-02 | 2023-05-31 | KNF | MDU RESOURCES GROUP INC | 10% | J - Other | $0.00 | -51.34M | 5.66M | -90% | $0 |
Purchase Sale Sale after option exercise All abbreviations