Summary
Updated Aug 30, 2026
Nathan K. Sleeper is Director of COLUMBUS MCKINNON CORP (CMCO). 3 SEC Form 4 filings on record, most recently on 19 August 2026.
Recent Transactions
2Every recent SEC Form 4 transaction Nathan K. Sleeper has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Nathan K. Sleeper files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- CDR Channel Holdings II, L.P. - $66.70M of REZI open-market activity in the last 12 months
- Andrew C. Teich - $1.25M of REZI open-market activity in the last 12 months
- Joshua Peter Foster - $315K of REZI open-market activity in the last 12 months
- Thomas A. Surran - $307K of REZI open-market activity in the last 12 months
- Amit Ashvin Mehta - $226K of REZI open-market activity in the last 12 months
- John R. Linker - $148K of CMCO 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 Nathan K. Sleeper?
Nathan K. Sleeper is a corporate insider, tracked as Director of COLUMBUS MCKINNON CORP (CMCO). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Nathan K. Sleeper submitted recently?
3 primary Form 4 filings in the last 90 days, covering 3 companies.
Where can I see all of Nathan K. Sleeper'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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