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.
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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