Summary
Updated Aug 31, 2026
John M. Keane files SEC Form 4 reports at SIGA TECHNOLOGIES INC (SIGA). 3 SEC Form 4 filings on record going back to 2025, most recently on 11 June 2026.
Recent Transactions
2Every recent SEC Form 4 transaction John M. Keane has reported, most recent first.
Trading Pattern
InsiderAlpha's records for John M. Keane go back to 2025: 3 primary Form 4 filings, an average of 1.5 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 John M. Keane's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Gary S. Guthart - $48.79M of ISRG open-market activity in the last 12 months
- Robert B. Ford - $48.22M of ABT open-market activity in the last 12 months
- Daniel Patrick O'Day - $47.86M of GILD open-market activity in the last 12 months
- Roger Adsett - $47.51M of INSM open-market activity in the last 12 months
- Bihua Chen - $46.87M of MLTX open-market activity in the last 12 months
- Mario Schlosser - $46.37M of OSCR 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 John M. Keane?
John M. Keane is a corporate insider of SIGA TECHNOLOGIES INC (SIGA). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has John M. Keane submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Where can I see all of John M. Keane'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.
Learn More
Follow John M. Keane and every insider like them
A free account opens the full scored daily plan and every past day, a watchlist for any ticker, and 3 months of price history on every company page. No card.
Free plan available · Paid plans start with a 7-day free trial