Company profile
Knife River Corp Insider Trading
KNFEvery SEC Form 4 insider trading filing for Knife River Corp (KNF) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- NYSE
- Sector
- Mining & Quarrying of Nonmetallic Minerals (No Fuels)
- CIK
- 0001955520
- Filings
- 70
- Insiders
- 16
- Last filing
- 2026-06-30
Activity summary
No insider transactions in the last 30 days. The most recent was on June 30, 2026, when Fagg Karen B bought 197.479 shares. 70 filings from 16 insiders are on record below.
Three year balance
Buy and sell value by quarter, Q2 23 to Q2 26. Knife River Corp insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $4.6M.
90 day insight
Over the last 90 days, Knife River Corp insiders bought $18K across 1 transaction with no open-market sales.
- Most active insider: Fagg Karen B with 1 transaction totaling $18K.
- Largest single purchase: $18K by Fagg Karen B on Jun 30, 2026.
Activity skews bullish — buys outpace sales.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 30, 2026 | Fagg Karen B | KNF | Award | 197.479 | $89.25 | $18K |
| May 20, 2026 | Sandbrook William J | KNF | Award | 2,040 | — | — |
| May 20, 2026 | Carmona-Alvarez German | KNF | Award | 2,040 | — | — |
| May 20, 2026 | Hill Thomas W. | KNF | Award | 2,040 | — | — |
| May 20, 2026 | Fagg Karen B | KNF | Award | 2,380 | — | — |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By total value filed.
Institutional Ownership
Top 13F-HR holders of Knife River Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →