KNF
insider transactionsKnife River Corp — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
No open-market buys or sells this period. The trades below are grants, option exercises and gifts, which carry no market price.
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
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Grant·A
Director
$0
2.0K sh
Own +36%
-
Grant·A
Director
$0
2.0K sh
Own +7%
-
Grant·A
Director
$0
2.0K sh
Own +59%
-
Grant·A
Director
$0
2.4K sh
Own +8%
-
Grant·A
Director
$0
2.0K sh
Own +58%
-
Grant·A
Director
$0
2.0K sh
Own +29%
-
Grant·A
Director
$17.6K
222 sh · $79.51
Own +26%
-
Grant·A
Brian R. Gray KEY
President & CEO
$0
21.0K sh
Own +33%
-
Grant·A
VP & Chief Excellence Officer
$0
3.0K sh
Own +15%
-
Grant·A
VP & Chief People Officer
$0
2.7K sh
Own +145%
-
Grant·A
VP, Chief Legal Officer & Sec.
$0
4.6K sh
Own +12%
-
Grant·A
Nathan W Ring KEY
Vice President & CFO
$0
5.2K sh
Own +21%
-
Grant·A
VP & Chief Accounting Officer
$0
1.2K sh
Own +32%
-
Grant·A
Vice President & COO
$0
6.1K sh
Own +15%
-
Other·F
VP & Chief Excellence Officer
$128.3K
1.6K sh · $81.74
Own -8%
-
Other·F
VP & Chief Excellence Officer
$113.2K
1.4K sh · $81.74
Own -6%
-
Other·F
VP, Chief Legal Officer & Sec.
$706.9K
8.6K sh · $81.74
Own -18%
-
Other·F
Nathan W Ring KEY
Vice President & CFO
$354.4K
4.3K sh · $81.74
Own -15%
-
Other·F
Nathan W Ring KEY
Vice President & CFO
$157.1K
1.9K sh · $81.74
Own -6%
-
Other·F
VP & Chief Accounting Officer
$100.7K
1.2K sh · $81.74
Own -25%
-
Other·F
Vice President & COO
$375.9K
4.6K sh · $81.74
Own -10%
-
Other·F
Vice President & COO
$235.4K
2.9K sh · $81.74
Own -6%
-
Other·F
Brian R. Gray KEY
President & CEO
$1.6M
19.6K sh · $81.74
Own -23%
-
Other·F
Brian R. Gray KEY
President & CEO
$823.3K
10.1K sh · $81.74
Own -11%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| May 20, 2026 | William J Sandbrook | Grant A | 2.0K | $0 |
| May 20, 2026 | Patricia L Moss | Grant A | 2.0K | $0 |
| May 20, 2026 | Thomas W. Hill | Grant A | 2.0K | $0 |
| May 20, 2026 | Karen B Fagg | Grant A | 2.4K | $0 |
| May 20, 2026 | Patricia Chiodo | Grant A | 2.0K | $0 |
| May 20, 2026 | German Carmona-Alvarez | Grant A | 2.0K | $0 |
| Mar 31, 2026 | Karen B Fagg | Grant A | 222 | $17.6K |
| Mar 6, 2026 | Brian R. Gray KEY | Grant A | 21.0K | $0 |
| Mar 4, 2026 | Glenn R. Pladsen | Grant A | 3.0K | $0 |
| Mar 4, 2026 | Sarah L. Lachapelle | Grant A | 2.7K | $0 |
| Mar 4, 2026 | Karl A Liepitz | Grant A | 4.6K | $0 |
| Mar 4, 2026 | Nathan W Ring KEY | Grant A | 5.2K | $0 |
| Mar 4, 2026 | Marney L. Kadrmas | Grant A | 1.2K | $0 |
| Mar 4, 2026 | Trevor J Hastings KEY | Grant A | 6.1K | $0 |
| Feb 12, 2026 | Glenn R. Pladsen | Other F | 1.6K | $128.3K |
| Feb 12, 2026 | Glenn R. Pladsen | Other F | 1.4K | $113.2K |
| Feb 12, 2026 | Karl A Liepitz | Other F | 8.6K | $706.9K |
| Feb 12, 2026 | Nathan W Ring KEY | Other F | 4.3K | $354.4K |
| Feb 12, 2026 | Nathan W Ring KEY | Other F | 1.9K | $157.1K |
| Feb 12, 2026 | Marney L. Kadrmas | Other F | 1.2K | $100.7K |
| Feb 12, 2026 | Trevor J Hastings KEY | Other F | 4.6K | $375.9K |
| Feb 12, 2026 | Trevor J Hastings KEY | Other F | 2.9K | $235.4K |
| Feb 12, 2026 | Brian R. Gray KEY | Other F | 19.6K | $1.6M |
| Feb 12, 2026 | Brian R. Gray KEY | Other F | 10.1K | $823.3K |
About KNF insider trading
This page tracks insider transactions for Knife River Corp (KNF) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.