Summary
Updated Aug 31, 2026
Raymond C. Stachowiak is Executive Chairman, Director, 10% Owner of AMERICAN SHARED HOSPITAL SERVICES (AMS). 3 SEC Form 4 filings on record, most recently on 24 July 2026. Most recent open-market trade: bought $1.34M of AMS on 24 June 2026. Lifetime open-market purchases: $1.34M.
Recent Transactions
2Every recent SEC Form 4 transaction Raymond C. Stachowiak has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Raymond C. Stachowiak go back to 2026: 3 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $1.34M (1 buy totaling $1.34M). The largest single buy on record is $1.34M of AMS in 2026. 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.
Most Active Insiders Right Now
Raymond C. Stachowiak has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Xiaodong Li - $146.73M of SE open-market activity in the last 90 days
- Trive Capital Holdings LLC - $145.83M of LYNX open-market activity in the last 90 days
- TPG GP A, LLC - $144.89M of LFST open-market activity in the last 90 days
- INNOVEX CO-INVEST FUND, L.P. - $143.55M of INVX open-market activity in the last 90 days
- Amberjack Capital Partners, L.P. - $143.55M of INVX open-market activity in the last 90 days
- David A. Duffield - $142.10M of WDAY open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Raymond C. Stachowiak?
Raymond C. Stachowiak is a corporate insider, tracked as Executive Chairman, Director, 10% Owner of AMERICAN SHARED HOSPITAL SERVICES (AMS). 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 Raymond C. Stachowiak submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Raymond C. Stachowiak been buying or selling stock?
Recorded transactions: 1 open-market purchase ($1.34M) and 0 open-market sales across all tracked filings.
Where can I see all of Raymond C. Stachowiak'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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