Knife River Corp — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| SANDBROOK WILLIAM J | — | Award / Grant | 1,551 | — | — | 5,695 | May 22, 2025 |
| MOSS PATRICIA L | — | Award / Grant | 1,551 | — | — | 29,834 | May 22, 2025 |
| Hill Thomas W. | — | Award / Grant | 1,551 | — | — | 3,456 | May 22, 2025 |
| Fagg Karen B | — | Award / Grant | 1,810 | — | — | 30,937 | May 22, 2025 |
| Chiodo Patricia | — | Award / Grant | 1,551 | — | — | 3,513 | May 22, 2025 |
| Carmona-Alvarez German | — | Award / Grant | 1,551 | — | — | 6,985 | May 22, 2025 |
| Gray Brian R. | President & CEO | Award / Grant | 12,599 | — | — | 93,436 | Feb 28, 2025 |
| Hastings Trevor J | Vice President & COO | Tax Withholding | 4,016 | $94.73 | $380,436 | 48,109 | Feb 27, 2025 |
| Liepitz Karl A | VP, Chief Legal Officer & Sec. | Tax Withholding | 7,083 | $94.73 | $670,973 | 48,349 | Feb 27, 2025 |
| Pladsen Glenn R. | VP & Chief Excellence Officer | Tax Withholding | 1,292 | $94.73 | $122,391 | 22,098 | Feb 27, 2025 |
| Ring Nathan W | Vice President & CFO | Tax Withholding | 1,698 | $94.73 | $160,852 | 31,577 | Feb 27, 2025 |
| Kadrmas Marney L. | VP & Chief Accounting Officer | Award / Grant | 709 | — | — | 4,950 | Feb 27, 2025 |
| Christenson Nancy K. | VP of Administration | Tax Withholding | 1,583 | $94.73 | $149,958 | 25,776 | Feb 27, 2025 |
| Chiodo Patricia | — | Award / Grant | 1,962 | — | — | 1,962 | Jun 27, 2024 |
| SANDBROOK WILLIAM J | — | Award / Grant | 720 | $77.19 | $55,577 | 4,144 | May 15, 2024 |
| MOSS PATRICIA L | — | Award / Grant | 1,905 | — | — | 27,563 | May 15, 2024 |
| Hill Thomas W. | — | Award / Grant | 1,905 | — | — | 1,905 | May 15, 2024 |
| Fagg Karen B | — | Award / Grant | 841 | $77.19 | $64,917 | 29,127 | May 15, 2024 |
| Carmona-Alvarez German | — | Award / Grant | 1,905 | — | — | 4,714 | May 15, 2024 |
| Gray Brian R. | President & CEO | Purchase | 1 | $73.65 | $74 | 8,167 | Feb 29, 2024 |
| Ring Nathan W | Vice President & CFO | Tax Withholding | 1,508 | $72.55 | $109,405 | 30,160 | Feb 22, 2024 |
| Pladsen Glenn R. | VP of Support Services | Tax Withholding | 941 | $72.55 | $68,270 | 21,604 | Feb 22, 2024 |
| Liepitz Karl A | VP, Chief Legal Officer & Sec. | Award / Grant | 4,348 | — | — | 57,904 | Feb 22, 2024 |
| Kadrmas Marney L. | Chief Accounting Officer | Award / Grant | 1,050 | — | — | 4,241 | Feb 22, 2024 |
| Gray Brian R. | President & CEO | Award / Grant | 17,769 | — | — | 80,837 | Feb 22, 2024 |
| Hastings Trevor J | Vice President & COO | Tax Withholding | 3,280 | $72.55 | $237,964 | 49,010 | Feb 22, 2024 |
| Christenson Nancy K. | VP of Administration | Award / Grant | 2,153 | — | — | 28,739 | Feb 22, 2024 |
| Carmona-Alvarez German | — | Award / Grant | 2,605 | $57.57 | $149,970 | 2,809 | Nov 15, 2023 |
| EVERIST THOMAS S | — | Award / Grant | 2,605 | $57.57 | $149,970 | 30,260 | Nov 15, 2023 |
| Fagg Karen B | — | Award / Grant | 2,858 | $57.57 | $164,535 | 26,064 | Nov 15, 2023 |
| MOSS PATRICIA L | — | Award / Grant | 2,605 | $57.57 | $149,970 | 25,658 | Nov 15, 2023 |
| SANDBROOK WILLIAM J | — | Award / Grant | 1,519 | $57.57 | $87,449 | 1,519 | Nov 15, 2023 |
| MDU RESOURCES GROUP INC | — | Other | 5,656,621 | — | — | — | Nov 10, 2023 |
| Christenson Nancy K. | VP of Administration | Award / Grant | 4,146 | — | — | 26,586 | Jul 12, 2023 |
| Gray Brian R. | President & CEO | Award / Grant | 41,696 | — | — | 63,051 | Jul 12, 2023 |
| Hastings Trevor J | Vice President & COO | Award / Grant | 7,236 | — | — | 47,485 | Jul 12, 2023 |
| Kadrmas Marney L. | Chief Accounting Officer | Award / Grant | 3,191 | — | — | 3,191 | Jul 12, 2023 |
| Pladsen Glenn R. | VP of Support Services | Award / Grant | 4,398 | — | — | 20,392 | Jul 12, 2023 |
| Ring Nathan W | Vice President & CFO | Award / Grant | 10,983 | — | — | 26,863 | Jul 12, 2023 |
| MDU RESOURCES GROUP INC | — | Other | 51,340,729 | — | — | 5,656,621 | May 31, 2023 |