ActivistActivist / 5%+ stake disclosed (SCHEDULE 13D/A)
- Sector
- Healthcare
- Industry
- Services-Medical Laboratories
- Exchange
- NYSE
- State of incorporation
- CA
- Form
- SCHEDULE 13D/A
- Filed
- December 16, 2025
Filings & documents
Every entry traces to SEC EDGAR. The Information Statement is the primary source; the links below open the full filing and each company's complete filing history.
Source filing ↗SCHEDULE 13D/A · the filing we parseAll documents in this filing ↗accession 0001437749-25-038049AMERICAN SHARED HOSPITAL SERVICES — all SEC filings ↗EDGAR company pageRUFFLE JOHN F — 8-K announcements ↗where the spin-off was announcedRUFFLE JOHN F — all SEC filings ↗parent EDGAR company page