Summary
Updated Aug 31, 2026
Lewis H. Ferguson files SEC Form 4 reports at COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). 10 SEC Form 4 filings on record going back to 2024, most recently on 30 June 2026. Most recent open-market trade: sold $57K of CCOI on 28 May 2026. Lifetime open-market sales: $311K.
Recent Transactions
10Every recent SEC Form 4 transaction Lewis H. Ferguson has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Lewis H. Ferguson go back to 2024: 10 primary Form 4 filings, an average of 3.3 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 Stocks
Insiders who reported open-market trades in the last 12 months at the companies Lewis H. Ferguson 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.
- Thaddeus Gerard Weed - $372K of CCOI open-market activity in the last 12 months
- Henry W. Kilmer - $186K of CCOI open-market activity in the last 12 months
- Sheryl Lynn Kennedy - $181K of CCOI 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 Lewis H. Ferguson?
Lewis H. Ferguson is a corporate insider of COGENT COMMUNICATIONS HOLDINGS, INC. (CCOI). InsiderAlpha holds 10 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Lewis H. Ferguson submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Lewis H. Ferguson been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($311K) across all tracked filings.
Where can I see all of Lewis H. Ferguson'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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