Summary
Updated Aug 31, 2026
Marney L. Kadrmas is VP & Chief Accounting Officer of Knife River Corp (KNF). 2 SEC Form 4 filings on record, most recently on 5 March 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Marney L. Kadrmas has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Marney L. Kadrmas go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Sector
No other insider has filed at Marney L. Kadrmas's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Keith Harvey - $8.75M of KALU open-market activity in the last 12 months
- Mogens C. Bay - $8.62M of VMI open-market activity in the last 12 months
- Edward A. Schlesinger - $8.31M of GLW open-market activity in the last 12 months
- John P. McConnell - $8.21M of WOR open-market activity in the last 12 months
- Sean D. Keohane - $8.18M of CBT open-market activity in the last 12 months
- Andrew Rees - $8.02M of CROX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Marney L. Kadrmas?
Marney L. Kadrmas is a corporate insider, tracked as VP & Chief Accounting Officer of Knife River Corp (KNF). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Marney L. Kadrmas last file a Form 4?
The most recent primary Form 4 on record is dated 5 March 2026, one of 2 filings going back to 2026.
Where can I see all of Marney L. Kadrmas's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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