AMS American Shared Hospital Services

American Shared Hospital Services engages in leasing radiosurgery and radiation therapy equipment to healthcare providers. Its equipment includes Gamma Knife, PBRT, and IGRT. The Gamma Knife radiosurgery equipment is a non-invasive treatment for malignant and benign brain tumors, vascular malformations and trigeminal neuralgia. The company was founded by Ernest A. Bates in 1977 and is headquartered in San Francisco, CA.

Company profile

Raymond C. Stachowiak
Fiscal year end
IRS number

AMS stock data



6 Apr 21
22 Apr 21
31 Dec 21
Quarter (USD)
Dec 20 Sep 20 Jun 20 Mar 20
Cost of revenue
Operating income
Operating margin
Net income
Net profit margin
Cash on hand
Change in cash
Diluted EPS
Annual (USD)
Dec 20 Dec 19 Dec 18 Dec 17
Cost of revenue
Operating income
Operating margin
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Financial data from company earnings reports.

Cash burn rate (estimated) Burn method: Change in cash Burn method: Operating income/loss Burn method: FCF (opex + capex)
Last Q Avg 4Q Last Q Avg 4Q Last Q Avg 4Q
Cash on hand (at last report) 4.33M 4.33M 4.33M 4.33M 4.33M 4.33M
Cash burn (monthly) (positive/no burn) (positive/no burn) 2.85M 788.58K (positive/no burn) (positive/no burn)
Cash used (since last report) n/a n/a 10.66M 2.95M n/a n/a
Cash remaining n/a n/a -6.33M 1.37M n/a n/a
Runway (months of cash) n/a n/a -2.2 1.7 n/a n/a

Beta Read what these cash burn values mean

Date Owner Security Transaction Code Indirect 10b5-1 $Price #Shares $Value #Remaining
1 Feb 21 Stachowiak Raymond C Common Stock, No Par Value Grant Aquire A No No 2.55 60,000 153K 238,061
4 Jan 21 Sandra AJ Lawrence Common Stock, No Par Value Grant Aquire A No No 2.17 11,521 25K 37,373
4 Jan 21 Kelly Daniel G Jr Common Stock, No Par Value Grant Aquire A No No 2.17 11,521 25K 48,664
4 Jan 21 Larson David Common Stock, No Par Value Grant Aquire A No No 2.17 11,521 25K 86,437
4 Dec 20 Stachowiak Raymond C Common Stock, No Par Value Grant Aquire A No No 0 10,000 0 178,061

Data for the last complete 13F reporting period. To see the most recent changes to ownership, click the ownership history button above.

9.4% owned by funds/institutions
13F holders
Current Prev Q Change
Total holders 16 15 +6.7%
Opened positions 2 2
Closed positions 1 2 -50.0%
Increased positions 2 3 -33.3%
Reduced positions 4 4
13F shares
Current Prev Q Change
Total value 1.2M 947K +27.0%
Total shares 542.37K 522.23K +3.9%
Total puts 0 0
Total calls 0 0
Total put/call ratio
Largest owners
Shares Value Change
Dimensional Fund Advisors 181.43K $403K -12.1%
Bridgeway Capital Management 125.2K $278K 0.0%
Renaissance Technologies 48.3K $107K NEW
Vanguard 42.02K $93K -5.2%
Canton Hathaway 40.1K $89K 0.0%
Acadian Asset Management 34.68K $76K +15.2%
James Investment Research 21.6K $48K 0.0%
GWM Advisors 21.6K $48K NEW
RY Royal Bank Of Canada 11K $24K 0.0%
Citadel Advisors 10.3K $23K -35.3%
Largest transactions
Shares Bought/sold Change
Renaissance Technologies 48.3K +48.3K NEW
Dimensional Fund Advisors 181.43K -24.95K -12.1%
VIRT Virtu Financial 0 -22.53K EXIT
GWM Advisors 21.6K +21.6K NEW
Citadel Advisors 10.3K -5.61K -35.3%
Acadian Asset Management 34.68K +4.57K +15.2%
Vanguard 42.02K -2.31K -5.2%
Tower Research Capital 4.48K +1.08K +31.7%
BAC Bank Of America 297 -9 -2.9%
WFC Wells Fargo & Co. 22 0 0.0%

Financial report summary

  • The market for the Gamma Knife is limited and the Company may not be able to place additional Gamma Knife units which could negatively impact the Company's revenue and financial results.
  • The Company has a high level of debt and may incur additional debt to finance its operations and if the Company is unable to secure additional credit in the future its operations and profits will be negatively impacted.
  • A small number of customers account for a major portion of our revenues and the loss of any one of theses significant customers could have a material adverse effect on the Company's business and results of operations.
  • The market for the company’s services is competitive and if the Company is not able to compete its business and results of operations could be negatively impacted.
  • There are alternatives to the Gamma Knife and medical centers could choose to use other radiosurgery devices instead of the Gamma Knife.
  • The Trading Volume of Our Common Stock is Low
Management Discussion
  • The COVID-19 pandemic, the resulting recession in the United States and its follow-on effects have impacted and will likely continue to impact business activity across industries, including the Company’s. During 2020, due to factors related to the COVID-19 pandemic such as delays in service at medical facilities and restrictions imposed by government agencies, and the Company’s customers in response to the spread of COVID-19, the Company experienced some delays in delivering certain Gamma Knife procedures and PBRT treatments. Similarly, the Company’s ability to conduct commercial efforts with its customers have been and are likely to continue to be disrupted as customers have turned their focus to dealing with the impact of the COVID-19 pandemic on their operations and have restricted access to their sites in efforts to contain the spread of the virus. The global nature of the pandemic has resulted in authorities implementing numerous measures designed to contain the virus, including travel bans and restrictions, border closures, quarantines, shelter-in-place orders, business limitations and shutdowns. The impact of the COVID-19 pandemic on the global economy and capital markets is significant, and on June 8, 2020 the National Bureau of Economic Research announced that the United States was in an economic recession. An extended economic recession in the United States or elsewhere could have a material adverse effect on the Company’s ability to conduct its business and to access financing, as well as on the Company’s results of operation, financial condition, liquidity and cash flows. The prioritization of COVID-19 treatment and containment has resulted in delays in decisions by the Company’s customers and their patients, obstacles to the Company’s ability to market and deliver its services, declines in treatment volumes and adverse impacts to revenues for both Gamma Knife procedures and PBRT treatments. As a result of the pandemic and related governmental actions, Gamma Knife procedures and PBRT treatments, which currently make up all of the Company’s revenue, may be impacted differently at each of the Company’s various locations and may take longer to recover than other areas of the economy, which may have a material impact on the Company's business. The Company’s Gamma Knife operations in Latin America have experienced a decline in procedures due to the COVID-19 pandemic. Our Gamma Knife and PBRT operations in the United States have also experienced negative impacts from the COVID-19 pandemic. As the COVID-19 pandemic continues to develop, additional impacts may arise that we are not aware of currently.
  • The impact of the COVID-19 pandemic for the year ended December 31, 2020 has varied by location based on the stage of containment and actions by government agencies. The impact on treatments and costs in the three-month period ended March 31, 2020 did not appear material. The impact of the COVID-19 pandemic has been greater for the three-month periods ended June 30, 2020, September 30, 2020, and December 31, 2020, including declines in patient volumes and corresponding reductions in Gamma Knife procedures and reduced PBRT fractions during the second and fourth quarters.
Content analysis
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