Summary
Updated Aug 31, 2026
Glenn R. Pladsen is VP & Chief Excellence Officer of Knife River Corp (KNF). 2 SEC Form 4 filings on record, most recently on 5 March 2026.
Recent Transactions
3Every recent SEC Form 4 transaction Glenn R. Pladsen has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Glenn R. Pladsen 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 Glenn R. Pladsen's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Kenneth S. Courtis - $35.83M of AMR open-market activity in the last 12 months
- Nicholas T. Pinchuk - $34.51M of SNA open-market activity in the last 12 months
- Chow Tai Fook Enterprises Ltd - $31.79M of IE open-market activity in the last 12 months
- Paul J. Fribourg - $31.30M of IFF open-market activity in the last 12 months
- Bryan H. Lawrence - $28.74M of METC open-market activity in the last 12 months
- Energy Holding Corp - $26.92M of TGLS 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 Glenn R. Pladsen?
Glenn R. Pladsen is a corporate insider, tracked as VP & Chief Excellence 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 Glenn R. Pladsen 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 Glenn R. Pladsen'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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