AMERICAN SHARED HOSPITAL SERVICES (AMS)
Sector: Services-Medical Laboratories
Industry: Medical - Care Facilities
American Shared Hospital Services
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Nov 9, 2026 | 1.19 | 1.25 | 1.19 | 1.24 | 10,377 |
| Nov 6, 2026 | 1.18 | 1.20 | 1.14 | 1.16 | 21,106 |
| Nov 5, 2026 | 1.23 | 1.25 | 1.17 | 1.17 | 4,325 |
| Nov 4, 2026 | 1.24 | 1.26 | 1.20 | 1.23 | 6,129 |
| Nov 3, 2026 | 1.26 | 1.29 | 1.23 | 1.23 | 5,090 |
| Nov 2, 2026 | 1.32 | 1.32 | 1.25 | 1.25 | 9,662 |
| Oct 30, 2026 | 1.27 | 1.28 | 1.26 | 1.27 | 2,045 |
| Oct 29, 2026 | 1.29 | 1.30 | 1.26 | 1.26 | 2,240 |
| Oct 28, 2026 | 1.30 | 1.33 | 1.28 | 1.33 | 12,073 |
| Oct 27, 2026 | 1.25 | 1.32 | 1.25 | 1.27 | 9,486 |
| Oct 26, 2026 | 1.25 | 1.28 | 1.25 | 1.25 | 4,167 |
| Oct 23, 2026 | 1.33 | 1.35 | 1.26 | 1.26 | 3,665 |
| Oct 22, 2026 | 1.24 | 1.30 | 1.23 | 1.26 | 6,811 |
| Oct 21, 2026 | 1.25 | 1.34 | 1.22 | 1.25 | 19,125 |
| Oct 20, 2026 | 1.27 | 1.28 | 1.24 | 1.25 | 2,201 |
| Oct 19, 2026 | 1.31 | 1.31 | 1.25 | 1.26 | 6,567 |
| Oct 16, 2026 | 1.27 | 1.28 | 1.21 | 1.28 | 27,798 |
| Oct 15, 2026 | 1.29 | 1.29 | 1.26 | 1.26 | 2,639 |
| Oct 14, 2026 | 1.25 | 1.27 | 1.21 | 1.27 | 18,998 |
| Oct 13, 2026 | 1.27 | 1.28 | 1.26 | 1.27 | 4,392 |
| Insider | Title | Type | Shares | Value | Date |
|---|---|---|---|---|---|
 Stachowiak Raymond C | Executive Chairman | Grant/Award | 220.0K | -- | Jul 22, 2026 |
| Stachowiak Raymond C | Executive Chairman | Purchase | 586.5K | $1.34M | Jun 22, 2026 |
| Stachowiak Raymond C | Executive Chairman | Grant/Award | 100.0K | -- | Mar 26, 2026 |
| Stachowiak Raymond C | Executive Chairman | Grant/Award | 110.0K | -- | Jun 26, 2025 |
 Tagawa Craig Kenji | President | Grant/Award | 5.6K | -- | Apr 30, 2025 |
 Frech Raymond Scott | Chief Financial Officer | Grant/Award | 50.0K | -- | Dec 19, 2024 |
| Name | Shares | % | Source |
|---|---|---|---|
Stachowiak Raymond C · joint filing· may incl. warrants· filed Jul 2026 | 2.4M | 36.7% | 13D |
 Delanois Gary Chief Operating Officer | 120.0K | 1.8% | FORM 4 |
DIMENSIONAL FUND ADVISORS LP | 102.0K | 1.5% | 13F |
LPL Financial LLC | 81.4K | 1.2% | 13F |
RENAISSANCE TECHNOLOGIES LLC | 57.7K | 0.9% | 13F |
VANGUARD CAPITAL MANAGEMENT LLC | 55.7K | 0.8% | 13F |
 Frech Raymond Scott Chief Financial Officer | 50.0K | 0.8% | FORM 4 |
 Tagawa Craig Kenji President | 35.5K | 0.5% | FORM 4 |
JAMES INVESTMENT RESEARCH, INC. | 29.7K | 0.4% | 13F |
NewEdge Advisors, LLC | 29.7K | 0.4% | 13F |
Insiders
- Stachowiak Raymond CExecutive Chairman
- Tagawa Craig KenjiPresident
- Frech Raymond ScottChief Financial Officer
- Delanois GaryChief Operating Officer
- Tirrito AlexisInterim CFO, CAO and Secretary
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.
based on 6.65M shares outstanding
US30d Avg
8.88K
60d Avg
9.14K
90d Avg
11.08K