How many insider trades does FilingIQ track for AMS?

FilingIQ tracks 170 Form 4 insider transactions for AMS (AMERICAN SHARED HOSPITAL SERVICES), covering filings from Dec 30, 2014 onwards. 1 of those were filed in the last 90 days.

Are AMS insiders net buyers or net sellers?

Across the full Form 4 history for AMS, 6 transactions (4%) were open-market purchases and 14 (8%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does AMS insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is AMS in?

AMERICAN SHARED HOSPITAL SERVICES (AMS) is classified in the Healthcare sector, specifically Medical Care Facilities, with a current market capitalisation of $14.19M.

AMS insider trading

NYSE American Healthcare

AMERICAN SHARED HOSPITAL SERVICES — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

170

Last 90 days

Buys / sells

4% / 8%

Market cap

$14.19M

About AMERICAN SHARED HOSPITAL SERVICES

American Shared Hospital Services provides technology solutions for stereotactic radiosurgery and advanced radiation therapy equipment and services. It operates in two segments, Leasing and Retail. The company leases nine Gamma Knife systems and one proton beam radiation therapy (PBRT) system; and provides planning, installation, reimbursement, and marketing support services. It also owns and operates two single-unit Gamma Knife facilities that provides radiosurgery services directly to the patient. The company markets its solutions to cancer treatment centers, health systems, and cancer networks worldwide. American Shared Hospital Services was founded in 1980 and is based in San Francisco, California.

Company website: ashs.com

AMS insider activity at a glance

FilingIQ has scored 170 insider transactions for AMS since Dec 30, 2014. The most recent filing in our index is dated Mar 26, 2026.

Across the full history, 6 open-market purchases and 14 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on AMS insider trades is 58.4/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live AMS trades on FilingIQ Raw filings on SEC EDGAR

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Frequently asked

How many insider trades does FilingIQ track for AMS?: FilingIQ tracks 170 Form 4 insider transactions for AMS (AMERICAN SHARED HOSPITAL SERVICES), covering filings from Dec 30, 2014 onwards. 1 of those were filed in the last 90 days.
Are AMS insiders net buyers or net sellers?: Across the full Form 4 history for AMS, 6 transactions (4%) were open-market purchases and 14 (8%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does AMS insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is AMS in?: AMERICAN SHARED HOSPITAL SERVICES (AMS) is classified in the Healthcare sector, specifically Medical Care Facilities, with a current market capitalisation of $14.19M.

Methodology & sources

Every AMS insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.