American Shared Hospital Services (AMS)
Largest Insider Buys in Sector
AMS Stock Price History Chart
AMS Stock Performance
About American Shared Hospital Services
American Shared Hospital Services leases radiosurgery and radiation therapy equipment to health care providers. The company offers radiosurgery equipment for the Gamma Knife stereotactic radiosurgery, a non-invasive procedure to treat malignant and benign brain tumors, and arteriovenous malformations, as well as for trigeminal neuralgia. It also provides financing services for Leksell Gamma Knife units. In addition, the company offers proton beam radiation therapy services in Orlando, Florida and Long Beach, California, as well as offers planning, installation, reimbursement, and marketing support services to its customers. As of December 31, 2021, it had 115 operating Gamma Knife units located in the United States, as well as two in South America in Lima, Peru and Guayaquil, Ecuador. The company also operates one PBRT system. American Shared Hospital Services was founded in 1980 and is based in San Francisco, California.
Insider Activity of American Shared Hospital Services
Over the last 12 months, insiders at American Shared Hospital Services have bought $0 and sold $0 worth of American Shared Hospital Services stock.
On average, over the past 5 years, insiders at American Shared Hospital Services have bought $0 and sold $0 worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 160,559 shares for transaction amount of $438,326 was made by Stachowiak Raymond C () on 2019‑05‑15.
List of Insider Buy and Sell Transactions, American Shared Hospital Services
| 2019-05-15 | Sale | director | 160,559 2.5595% | $2.73 | $438,326 | -14.09% | ||
| 2019-05-15 | 160,559 2.5595% | $2.73 | $438,326 | -14.09% | ||||
| 2018-06-18 | Sale | COO/CFO | 6,900 0.1184% | $2.75 | $19,003 | +1.82% | ||
| 2018-06-14 | Sale | COO/CFO | 5 <0.0001% | $2.70 | $14 | +4.10% | ||
| 2018-06-07 | Sale | COO/CFO | 2,966 0.0501% | $2.66 | $7,890 | +2.96% | ||
| 2018-06-06 | Sale | COO/CFO | 34 0.0006% | $2.75 | $94 | +2.96% | ||
| 2018-06-05 | Sale | COO/CFO | 5,000 0.0842% | $2.75 | $13,750 | -0.71% | ||
| 2017-05-19 | Sale | COO/CFO | 3,500 0.0582% | $3.90 | $13,650 | -29.11% | ||
| 2017-05-18 | Sale | COO/CFO | 3,500 0.0582% | $3.80 | $13,304 | -27.27% | ||
| 2017-03-31 | Sale | COO/CFO | 5,000 0.0842% | $4.32 | $21,604 | -30.72% | ||
| 2017-03-30 | Sale | Chairman and CEO | 5,000 0.0882% | $4.21 | $21,065 | -28.57% | ||
| 2017-03-29 | Sale | Chairman and CEO | 5,000 0.0878% | $4.24 | $21,217 | -29.41% | ||
| 2016-06-22 | Sale | director | 500 0.0091% | $2.22 | $1,111 | +51.58% | ||
| 2016-06-08 | Chairman and CEO | 500 0.0093% | $2.08 | $1,041 | +63.37% | |||
| 2016-06-07 | Chairman and CEO | 500 0.0092% | $2.06 | $1,029 | +60.89% | |||
| 2016-06-06 | Chairman and CEO | 500 0.009% | $2.02 | $1,009 | +60.10% | |||
| 2015-08-27 | Sale | director | 8,600 0.1488% | $2.07 | $17,823 | -9.17% | ||
| 2014-10-22 | 200,000 4.2423% | $2.20 | $440,000 | +21.26% | ||||
| 2014-06-12 | director | 400,000 8.3917% | $2.43 | $972,000 | +0.80% | |||
| 2014-06-12 | director | 800,000 16.7834% | $2.43 | $1.94M | +0.80% |
Insider Historical Profitability
| Stachowiak Raymond C | 760559 11.8467% | $3.57 | 3 | 0 | <0.0001% | |
| BATES ERNEST A | Chairman and CEO | 645147 10.049% | $3.57 | 3 | 2 | +61.45% |
| RUFFLE JOHN F | director | 480267 7.4808% | $3.57 | 1 | 0 | |
| TROTMAN STANLEY S JR | director | 79847 1.2437% | $3.57 | 8 | 1 | +57.54% |
| Tagawa Craig Kenji | COO/CFO | 64391 1.003% | $3.57 | 0 | 8 | |
| Larson David | director | 49064 0.7642% | $3.57 | 0 | 2 |
Institutional Investor Ownership
| Bridgeway Capital Management | $772,118.00 | 4.14 | 261,735 | +0.27% | +$2,065.00 | 0.01 | |
| The Vanguard Group | $527,079.00 | 2.82 | 178,671 | +51.56% | +$179,321.50 | <0.0001 | |
| Dimensional Fund Advisors | $505,043.00 | 2.71 | 171,201 | +3.1% | +$15,177.75 | <0.0001 | |
| Ci Private Wealth Llc | $473,649.00 | 2.54 | 160,559 | -0.22% | -$1,062.00 | <0.0001 | |
| Acadian Asset Management | $254,000.00 | 1.37 | 86,399 | -38.66% | -$160,118.87 | <0.01 | |
| Renaissance Technologies | $125,000.00 | 0.67 | 42,300 | +19.16% | +$20,094.56 | <0.0001 | |
| Financial Counselors Inc | $109,513.00 | 0.59 | 37,123 | 0% | +$0 | <0.01 | |
| Newedge Advisors Llc | $87,689.00 | 0.47 | 29,725 | 0% | +$0 | <0.01 | |
| James Investment Research Inc | $87,689.00 | 0.47 | 29,725 | 0% | +$0 | 0.01 | |
| Geode Capital Management | $52,891.00 | 0.28 | 17,916 | 0% | +$0 | <0.0001 | |
| Susquehanna International Group | $32,028.00 | 0.17 | 10,857 | New | +$32,028.00 | <0.0001 | |
| Two Sigma | $31,633.00 | 0.17 | 10,723 | 0% | +$0 | <0.0001 | |
| Empowered Funds Llc | $30,881.00 | 0.17 | 10,468 | New | +$30,881.00 | <0.01 | |
| Morgan Stanley | $17,423.00 | 0.09 | 5,906 | 0% | +$0 | <0.0001 | |
| UBS | $11,254.00 | 0.06 | 3,815 | New | +$11,254.00 | <0.0001 | |
| Tower Research Capital | $2,729.00 | 0.02 | 925 | +70.04% | +$1,124.05 | <0.0001 | |
| Bank of America | $876.00 | 0.01 | 297 | -0.67% | -$5.90 | <0.0001 | |
| JPMorgan Chase | $27.00 | <0.01 | 9 | -91.59% | -$294.00 | <0.0001 | |
| Wells Fargo | $91.00 | <0.01 | 31 | +3.33% | +$2.94 | <0.0001 |