Knife River Corp (KNF) insider trading
Every open-market stock purchase and sale by Knife River Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- Last insider buy: Brian R. Gray (CEO), $74, 2 years ago.
Last 12 months: insiders bought $0 (0 buys) and sold $0 (0 sales).
Recent KNF insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| May 20, 2026 | German Carmona-Alvarez (Director) | Bought (not open market) | — |
| May 20, 2026 | Karen B Fagg (Director) | Bought (not open market) | — |
| May 20, 2026 | Thomas W. Hill (Director) | Bought (not open market) | — |
| May 20, 2026 | Patricia L Moss (Director) | Bought (not open market) | — |
| May 20, 2026 | William J Sandbrook (Director) | Bought (not open market) | — |
| May 20, 2026 | Patricia Chiodo (Director) | Bought (not open market) | — |
| Mar 31, 2026 | Karen B Fagg (Director) | Bought (not open market) | $17.6K |
| Mar 6, 2026 | Brian R. Gray (CEO) | Bought (not open market) | — |
| Mar 4, 2026 | Sarah L. LaChapelle (C-suite exec) | Bought (not open market) | — |
| Mar 4, 2026 | Karl A Liepitz (C-suite exec) | Bought (not open market) | — |
| Mar 4, 2026 | Nathan W Ring (CFO) | Bought (not open market) | — |
| Mar 4, 2026 | Marney L. Kadrmas (C-suite exec) | Bought (not open market) | — |
| Mar 4, 2026 | Glenn R. Pladsen (C-suite exec) | Bought (not open market) | — |
| Mar 4, 2026 | Trevor J Hastings (COO) | Bought (not open market) | — |
| Feb 12, 2026 | Brian R. Gray (CEO) | Sold (not open market) | $1.6M |
| Feb 12, 2026 | Brian R. Gray (CEO) | Sold (not open market) | $823K |
| Feb 12, 2026 | Karl A Liepitz (C-suite exec) | Sold (not open market) | $707K |
| Feb 12, 2026 | Trevor J Hastings (COO) | Sold (not open market) | $376K |
| Feb 12, 2026 | Nathan W Ring (CFO) | Sold (not open market) | $354K |
| Feb 12, 2026 | Trevor J Hastings (COO) | Sold (not open market) | $235K |
| Feb 12, 2026 | Nathan W Ring (CFO) | Sold (not open market) | $157K |
| Feb 12, 2026 | Glenn R. Pladsen (C-suite exec) | Sold (not open market) | $128K |
| Feb 12, 2026 | Glenn R. Pladsen (C-suite exec) | Sold (not open market) | $113K |
| Feb 12, 2026 | Marney L. Kadrmas (C-suite exec) | Sold (not open market) | $101K |
Who's trading KNF
- German Carmona-Alvarez, Director: other filings, last May 20, 2026
- Patricia Chiodo, Director: other filings, last May 20, 2026
- Karen B Fagg, Director: other filings, last May 20, 2026
- Thomas W. Hill, Director: other filings, last May 20, 2026
- Patricia L Moss, Director: other filings, last May 20, 2026
- William J Sandbrook, Director: other filings, last May 20, 2026
- Brian R. Gray, CEO: other filings, last Mar 6, 2026
- Glenn R. Pladsen, C-suite exec: other filings, last Mar 4, 2026
- Marney L. Kadrmas, C-suite exec: other filings, last Mar 4, 2026
- Sarah L. LaChapelle, C-suite exec: other filings, last Mar 4, 2026
- Karl A Liepitz, C-suite exec: other filings, last Mar 4, 2026
- Trevor J Hastings, COO: other filings, last Mar 4, 2026
- Nathan W Ring, CFO: other filings, last Mar 4, 2026
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