American Shared Hospital Services logo

American Shared Hospital Services

AMS | AMEX
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$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
View All SEC Filings
American Shared Hospital Services
American Shared Hospital Services logo
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

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