American Shared Hospital Services SEC filings AMS
American Shared Hospital Services has 773 filings in SEC EDGAR's recent list, going back to May 15, 1995. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 13, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Aug 13, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 30, 2026 | — |
| 4 | Insider transaction | Jul 24, 2026 | Jul 22, 2026 |
| 3 | Initial insider ownership | Jul 16, 2026 | Jul 7, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 25, 2026 | — |
| 4 | Insider transaction | Jun 24, 2026 | Jun 22, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jun 23, 2026 | — |
| 4 | Insider transaction | Apr 15, 2026 | Mar 26, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 16, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 9, 2025 | — |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 9, 2025 | — |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 7, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 3, 2025 | — |
| 4 | Insider transaction | Dec 23, 2024 | Dec 19, 2024 |
| 3 | Initial insider ownership | Dec 23, 2024 | Dec 19, 2024 |
| SC 13D | Ownership over 5% (active) | Nov 20, 2024 | — |
| 4 | Insider transaction | Oct 31, 2024 | Oct 14, 2024 |
| 3 | Initial insider ownership | Oct 31, 2024 | Oct 14, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 3, 2024 | — |
| 4 | Insider transaction | Mar 26, 2024 | Mar 22, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Dec 18, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 3, 2023 | — |
| 4 | Insider transaction | Apr 21, 2023 | Apr 17, 2023 |
| 3 | Initial insider ownership | Apr 21, 2023 | Apr 17, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 28, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 28, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Sep 8, 2022 | Sep 7, 2022 |
| 3 | Initial insider ownership | Sep 8, 2022 | Sep 7, 2022 |
| 4 | Insider transaction | Jun 2, 2022 | May 31, 2022 |
| 4/A | Form 4/a | Apr 6, 2022 | Jul 2, 2020 |
| 4/A | Form 4/a | Apr 6, 2022 | Jun 14, 2018 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 1, 2022 |
| 4 | Insider transaction | Apr 5, 2022 | Apr 1, 2022 |
| 4 | Insider transaction | Jan 3, 2022 | Jan 3, 2022 |
| 4 | Insider transaction | Dec 30, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Dec 30, 2021 | Dec 28, 2021 |
| 3 | Initial insider ownership | Dec 30, 2021 | Dec 28, 2021 |
| 3 | Initial insider ownership | Dec 30, 2021 | Dec 28, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| 4/A | Form 4/a | Jun 29, 2021 | Jun 4, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| 4 | Insider transaction | Jun 29, 2021 | Jun 25, 2021 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 14, 2021 | — |
| 4 | Insider transaction | Jun 8, 2021 | Jun 4, 2021 |
| 4 | Insider transaction | Jun 7, 2021 | Jun 3, 2021 |
| 4 | Insider transaction | Jun 7, 2021 | May 4, 2020 |
| 4 | Insider transaction | Feb 3, 2021 | Feb 1, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Jan 6, 2021 | Jan 4, 2021 |
| 4 | Insider transaction | Dec 7, 2020 | Dec 4, 2020 |
| 4 | Insider transaction | Nov 5, 2020 | Nov 4, 2020 |
| 4 | Insider transaction | Oct 13, 2020 | Oct 4, 2020 |
| 4 | Insider transaction | Sep 9, 2020 | Sep 4, 2020 |
| 4 | Insider transaction | Aug 6, 2020 | Aug 4, 2020 |
| 4 | Insider transaction | Jul 7, 2020 | Jul 2, 2020 |
| 4 | Insider transaction | Jun 30, 2020 | Jun 26, 2020 |
| 4 | Insider transaction | Jun 30, 2020 | Jun 26, 2020 |
| 4 | Insider transaction | Jun 30, 2020 | Jun 26, 2020 |
| 4 | Insider transaction | Jun 30, 2020 | Jun 26, 2020 |
| 4 | Insider transaction | May 6, 2020 | May 4, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Mar 12, 2020 | Jan 2, 2020 |
| 4 | Insider transaction | Aug 2, 2019 | Jun 21, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jun 21, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jun 21, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jun 21, 2019 |
| 4 | Insider transaction | Aug 2, 2019 | Jun 21, 2019 |
| 4 | Insider transaction | Jun 20, 2019 | Jun 18, 2019 |
| SC 13D/A | Amended ownership over 5% (active) | May 21, 2019 | — |
| 4 | Insider transaction | May 17, 2019 | May 15, 2019 |
| 4 | Insider transaction | May 17, 2019 | May 15, 2019 |
| 4 | Insider transaction | Jan 4, 2019 | Jan 2, 2019 |
| 4 | Insider transaction | Jan 4, 2019 | Jan 2, 2019 |
| 4 | Insider transaction | Jan 4, 2019 | Jan 2, 2019 |
| 4 | Insider transaction | Jan 4, 2019 | Jan 2, 2019 |
| 4/A | Ownership document | Oct 9, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jul 5, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 18, 2018 | Jun 14, 2018 |
| 4 | Insider transaction | Jun 7, 2018 | Jun 5, 2018 |
| 4 | Insider transaction | Jan 4, 2018 | Jan 2, 2018 |
| 4 | Insider transaction | Jan 4, 2018 | Jan 2, 2018 |
| 4 | Insider transaction | Jan 4, 2018 | Jan 2, 2018 |
| 4 | Insider transaction | Jan 4, 2018 | Jan 2, 2018 |
| 3 | Initial insider ownership | Sep 15, 2017 | Sep 7, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | Jun 29, 2017 | Jun 27, 2017 |
| 4 | Insider transaction | May 22, 2017 | May 18, 2017 |
| 4 | Insider transaction | Apr 25, 2017 | Aug 27, 2015 |
| 4 | Insider transaction | Apr 3, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Apr 3, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Apr 3, 2017 | Mar 31, 2017 |
| 4 | Insider transaction | Mar 31, 2017 | Mar 29, 2017 |
| 4 | Insider transaction | Mar 31, 2017 | Mar 29, 2017 |
| 4 | Insider transaction | Mar 28, 2017 | Mar 27, 2017 |
| 4 | Insider transaction | Jan 6, 2017 | Jan 4, 2017 |
| 4 | Insider transaction | Jan 6, 2017 | Jan 4, 2017 |
| 4 | Insider transaction | Jan 6, 2017 | Jan 4, 2017 |
| 4 | Insider transaction | Jan 5, 2017 | Jan 3, 2017 |
| 4 | Insider transaction | Jan 5, 2017 | Jan 3, 2017 |
| 4 | Insider transaction | Jan 5, 2017 | Jan 3, 2017 |
| 4 | Insider transaction | Nov 17, 2016 | Nov 15, 2016 |
| 4 | Insider transaction | Jul 6, 2016 | Jul 1, 2016 |
| 3 | Initial insider ownership | Jun 29, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 23, 2016 | Jun 21, 2016 |
| 4 | Insider transaction | Jun 10, 2016 | Jun 8, 2016 |
| 4 | Insider transaction | Jun 8, 2016 | Jun 6, 2016 |
| SC 13D/A | Amended ownership over 5% (active) | Feb 16, 2016 | — |
| SC 13D/A | Amended ownership over 5% (active) | Jan 20, 2016 | — |
| 4 | Insider transaction | Jan 6, 2016 | Jan 4, 2016 |
| 4 | Insider transaction | Jan 6, 2016 | Jan 4, 2016 |
| 4 | Insider transaction | Jan 6, 2016 | Jan 4, 2016 |
| 4 | Insider transaction | Jul 14, 2015 | Jul 7, 2015 |
| 4 | Insider transaction | Jun 17, 2015 | Jun 17, 2015 |
| 4 | Insider transaction | Jun 17, 2015 | Jun 16, 2015 |
| 4 | Insider transaction | Jun 17, 2015 | Jun 16, 2015 |
| 4 | Insider transaction | Jun 17, 2015 | Jun 16, 2015 |
| 4 | Insider transaction | Jun 17, 2015 | Jun 16, 2015 |
| 4 | Insider transaction | May 6, 2015 | May 4, 2015 |
| 4 | Insider transaction | Apr 21, 2015 | Jan 2, 2015 |
| 4 | Insider transaction | Apr 17, 2015 | Jan 2, 2015 |
| 4 | Insider transaction | Apr 17, 2015 | Jan 2, 2015 |
| 4 | Insider transaction | Apr 17, 2015 | Jan 2, 2015 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 5, 2015 | — |
| 4 | Insider transaction | Jan 29, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 29, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Jan 27, 2015 | Dec 30, 2014 |
| 4 | Insider transaction | Dec 29, 2014 | Dec 23, 2014 |
| SC 13D/A | Amended ownership over 5% (active) | Oct 28, 2014 | — |
| SC 13D/A | Amended ownership over 5% (active) | Oct 27, 2014 | — |
| 4 | Insider transaction | Oct 24, 2014 | Oct 22, 2014 |
| 4 | Insider transaction | Oct 24, 2014 | Oct 22, 2014 |
| 4 | Insider transaction | Oct 24, 2014 | Oct 22, 2014 |
| 4 | Insider transaction | Oct 24, 2014 | Oct 22, 2014 |
| 4 | Insider transaction | Aug 26, 2014 | Aug 22, 2014 |
| SC 13D/A | Amended ownership over 5% (active) | Jun 18, 2014 | — |
| SC 13D | Ownership over 5% (active) | Jun 17, 2014 | — |
| 4 | Insider transaction | Jun 16, 2014 | Jun 10, 2014 |
| 4 | Insider transaction | Jun 16, 2014 | Jun 10, 2014 |
| 4 | Insider transaction | Jun 16, 2014 | Jun 10, 2014 |
| 4 | Insider transaction | Jun 16, 2014 | Jun 10, 2014 |
| 4/A | Primary document | Jun 13, 2014 | Jun 7, 2012 |
| 4/A | Primary document | Jun 13, 2014 | Jan 2, 2014 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2014 | — |
| 4 | Insider transaction | Sep 11, 2013 | Sep 10, 2013 |
| 4 | Insider transaction | Sep 5, 2013 | Sep 4, 2013 |
| 4 | Insider transaction | Jun 26, 2013 | Jan 3, 2011 |
| 4 | Insider transaction | Jun 26, 2013 | Jan 3, 2011 |
| 4 | Insider transaction | Jun 26, 2013 | Jan 3, 2011 |
| 4 | Insider transaction | Jun 26, 2013 | Jun 11, 2013 |
| 4 | Insider transaction | Jun 26, 2013 | Jun 9, 2011 |
| 4 | Insider transaction | Jun 24, 2013 | Jun 20, 2013 |
| 4 | Insider transaction | Jun 6, 2013 | May 29, 2013 |
| SC 13D | Ownership over 5% (active) | May 24, 2013 | — |
| 4 | Insider transaction | May 17, 2013 | May 16, 2013 |
| 4 | Insider transaction | May 15, 2013 | May 14, 2013 |
| SC 13G | Ownership over 5% (passive) | Feb 11, 2013 | — |
| 4 | Insider transaction | Dec 26, 2012 | Dec 21, 2012 |
| 4/A | Primary document | Dec 26, 2012 | Dec 21, 2012 |
| 4 | Insider transaction | Jun 29, 2012 | Jun 28, 2012 |
| 4 | Insider transaction | Jun 26, 2012 | Jun 22, 2012 |
| 4 | Insider transaction | Jun 21, 2012 | Jun 21, 2012 |
| 4 | Insider transaction | Jun 18, 2012 | Jun 14, 2012 |
| 4 | Insider transaction | Jun 18, 2012 | Jun 7, 2012 |
| 4 | Insider transaction | Jun 18, 2012 | Apr 4, 2012 |
| 4 | Insider transaction | Jun 18, 2012 | Jun 9, 2011 |
| 4 | Insider transaction | Jun 11, 2012 | Jun 7, 2012 |
| 4 | Insider transaction | Jun 7, 2012 | Jun 7, 2012 |
| 4 | Insider transaction | Jun 7, 2012 | Jun 7, 2012 |
| 4 | Insider transaction | Jun 7, 2012 | Jun 7, 2012 |
| 4 | Insider transaction | May 30, 2012 | May 30, 2012 |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2012 | — |
| 4 | Insider transaction | Dec 30, 2011 | Dec 29, 2011 |
| 4 | Insider transaction | Dec 30, 2011 | Dec 28, 2011 |
Showing 200 filings, the most recent 200. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Services-Medical Laboratories (SIC 8071)
- Listed as
- AMS (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- CA
- Headquarters
- San Francisco, CA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 744825
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.