American Shared Hospital Services
AMS | AMEX
$1.42
-$0.03 (-2.07%)
Sep 22, 2026, 10:30 AM ET · Market open
Company Profile
American Shared Hospital Services specializes in leasing advanced radiosurgery and radiation therapy equipment to healthcare providers. The company offers Gamma Knife stereotactic radiosurgery systems, a non-invasive technology used to treat conditions such as malignant and benign brain tumors, arteriovenous malformations, and trigeminal neuralgia. They also facilitate financing for Leksell Gamma Knife units. Additionally, the firm operates proton beam radiation therapy centers in Orlando, Florida, and Long Beach, California. Customers further benefit from comprehensive support encompassing planning, installation, reimbursement guidance, and marketing strategies. As of December 31, 2021, their portfolio included 115 active Gamma Knife units across the United States, complemented by two units in South America (Lima, Peru, and Guayaquil, Ecuador), and one proton beam radiation therapy system. Established in 1980, American Shared Hospital Services maintains its headquarters in San Francisco, California.
Key Executives
| Name | Position |
|---|---|
| Craig K. Tagawa | President & Interim CEO |
| Scott Raymond Frech | Chief Financial Officer |
| Alexis N. Tirrito | Interim CFO, Chief Accounting Officer & Corporate Secretary |
| Alexis N. Wallace | Chief Accounting Officer & Corporate Secretary |
| Ernest R. Bates | Vice President of International Sales & Marketing |
| Greg Mercurio | Senior Vice President of Radiation Oncology |
| Ranjit Pradhan | Senior Vice President of Sales & Marketing |
| Raymond C. Stachowiak | Executive Chairman |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Aug 13, 2026 | 10-Q | Quarterly Report |
| Aug 13, 2026 | 8-K | Current Report |
| Jul 30, 2026 | SC 13D/A | [Amend] Filing |
| Jul 28, 2026 | 8-K | Current Report |
| Jul 24, 2026 | 4 | Filing |
| Jul 16, 2026 | 3 | Filing |
| Jul 13, 2026 | 8-K | Current Report |
| Jun 30, 2026 | 8-K | Current Report |
| Jun 25, 2026 | SC 13D/A | [Amend] Filing |
| Jun 24, 2026 | 4 | Filing |
American Shared Hospital Services
| Country | United States |
| IPO Date | Jul 2, 1984 |
| Industry | Medical - Care Facilities |
| Sector | Healthcare |
| Employees | 83 |
| CEO | Craig K. Tagawa |
Contact Details
601 Montgomery Street San Francisco,
California 94111-2619 United States
Stock Details
| Ticker Symbol | AMS |
| Exchange | AMEX |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0000744825 |
| CUSIP Number | 029595105 |
| ISIN Number | US0295951059 |
| SIC Code | 8071 |
Add to Watchlist
Select watchlists to add or remove AMS