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 |
|---|---|---|---|
| 10-Q | Quarterly report | Aug 13, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2026 | Aug 13, 2026 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jul 30, 2026 | — |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale
|
Jul 28, 2026 | Jul 22, 2026 |
| 4 | Insider transaction | Jul 24, 2026 | Jul 22, 2026 |
| 3 | Initial insider ownership | Jul 16, 2026 | Jul 7, 2026 |
| 8-K |
Current report
Officer or director change
|
Jul 13, 2026 | Jul 7, 2026 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 30, 2026 | Jun 24, 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 | — |
| 8-K | Current report | Jun 4, 2026 | May 29, 2026 |
| 10-Q | Quarterly report | May 14, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 14, 2026 | May 14, 2026 |
| DEFA14A | Additional proxy material | May 7, 2026 | — |
| ARS | Annual report to shareholders | Apr 30, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 30, 2026 | — |
| DEF 14A | Proxy statement | Apr 30, 2026 | Jun 24, 2026 |
| 8-K |
Current report
Officer or director change
|
Apr 24, 2026 | Apr 20, 2026 |
| 4 | Insider transaction | Apr 15, 2026 | Mar 26, 2026 |
| 10-K | Annual report | Mar 31, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 31, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Material agreement
|
Mar 19, 2026 | Mar 13, 2026 |
| 10-Q/A | Amended quarterly report | Jan 16, 2026 | Sep 30, 2025 |
| 8-K |
Current report
Restatement
|
Jan 2, 2026 | Dec 27, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 16, 2025 | — |
| 8-K |
Current report
Other events
|
Dec 16, 2025 | Dec 10, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Dec 9, 2025 | — |
| 10-Q | Quarterly report | Nov 14, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2025 | Nov 13, 2025 |
| 10-Q | Quarterly report | Aug 13, 2025 | Jun 30, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2025 | Aug 13, 2025 |
| 8-K/A |
Amended current report
Officer or director change
|
Jul 2, 2025 | Apr 3, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Jul 2, 2025 | Jun 26, 2025 |
| 4 | Insider transaction | Jun 30, 2025 | Jun 26, 2025 |
| 8-K |
Current report
Auditor change
|
Jun 9, 2025 | Jun 3, 2025 |
| 10-Q | Quarterly report | May 15, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 15, 2025 | May 15, 2025 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | May 9, 2025 | — |
| 4 | Insider transaction | May 2, 2025 | Apr 30, 2025 |
| ARS | Annual report to shareholders | Apr 30, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 30, 2025 | — |
| DEF 14A | Proxy statement | Apr 30, 2025 | Jun 26, 2025 |
| 10-K | Annual report | Apr 4, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Apr 4, 2025 | Apr 3, 2025 |
| NT 10-K | Form nt 10-k | Mar 31, 2025 | Dec 31, 2024 |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Mar 7, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Jan 3, 2025 | — |
| 8-K |
Current report
Material agreement, New debt, Officer or director change, Other events
|
Dec 26, 2024 | Dec 17, 2024 |
| 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 | — |
| 10-Q | Quarterly report | Nov 14, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2024 | Nov 13, 2024 |
| 4 | Insider transaction | Oct 31, 2024 | Oct 14, 2024 |
| 3 | Initial insider ownership | Oct 31, 2024 | Oct 14, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Oct 18, 2024 | Oct 18, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2024 | Aug 14, 2024 |
| 10-Q | Quarterly report | Aug 14, 2024 | Jun 30, 2024 |
| 8-K |
Current report
Other events
|
Jul 23, 2024 | Jul 23, 2024 |
| 8-K |
Current report
Shareholder vote results
|
Jul 2, 2024 | Jun 25, 2024 |
| 10-Q | Quarterly report | May 15, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 14, 2024 | May 14, 2024 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Other events
|
May 13, 2024 | May 7, 2024 |
| ARS | Annual report to shareholders | Apr 29, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 29, 2024 | — |
| DEF 14A | Proxy statement | Apr 29, 2024 | Jun 25, 2024 |
| 8-K |
Current report
Officer or director change, Other events
|
Apr 18, 2024 | Apr 12, 2024 |
| SC 13D/A | Amended ownership over 5% (active) | Apr 3, 2024 | — |
| 10-K | Annual report | Apr 1, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 28, 2024 | Mar 27, 2024 |
| 8-K |
Current report
Other events
|
Mar 27, 2024 | Mar 26, 2024 |
| 4 | Insider transaction | Mar 26, 2024 | Mar 22, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Jan 31, 2024 | Jan 25, 2024 |
| S-8 | Employee stock plan registration | Jan 9, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Dec 18, 2023 | — |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 21, 2023 | Nov 20, 2023 |
| 8-K |
Current report
Material agreement
|
Nov 16, 2023 | Nov 10, 2023 |
| 10-Q | Quarterly report | Nov 14, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 13, 2023 | Nov 13, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2023 | Aug 14, 2023 |
| 10-Q | Quarterly report | Aug 14, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Shareholder vote results
|
Jun 23, 2023 | Jun 20, 2023 |
| 10-Q | Quarterly report | May 12, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 12, 2023 | Mar 31, 2023 |
| SC 13D/A | Amended ownership over 5% (active) | May 3, 2023 | — |
| ARS | Annual report to shareholders | May 1, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | May 1, 2023 | — |
| DEF 14A | Proxy statement | May 1, 2023 | Jun 20, 2023 |
| 4 | Insider transaction | Apr 21, 2023 | Apr 17, 2023 |
| 3 | Initial insider ownership | Apr 21, 2023 | Apr 17, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 18, 2023 | Apr 12, 2023 |
| 8-K |
Current report
Officer or director change
|
Mar 31, 2023 | Mar 28, 2023 |
| 10-K | Annual report | Mar 31, 2023 | Dec 31, 2022 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 28, 2023 |
| 4 | Insider transaction | Mar 30, 2023 | Mar 28, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 24, 2023 | Mar 24, 2023 |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 10, 2023 | Mar 7, 2023 |
| 4 | Insider transaction | Mar 9, 2023 | Mar 7, 2023 |
| 10-Q | Quarterly report | Nov 10, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2022 | Nov 10, 2022 |
| 4 | Insider transaction | Sep 8, 2022 | Sep 7, 2022 |
| 3 | Initial insider ownership | Sep 8, 2022 | Sep 7, 2022 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 1, 2022 | Aug 26, 2022 |
| 10-Q/A | Amended quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 10-Q | Quarterly report | Aug 15, 2022 | Jun 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 11, 2022 | Aug 11, 2022 |
| 8-K |
Current report
Shareholder vote results
|
Jun 23, 2022 | Jun 21, 2022 |
| 4 | Insider transaction | Jun 2, 2022 | May 31, 2022 |
| 10-Q | Quarterly report | May 12, 2022 | Mar 31, 2022 |
| 8-K |
Current report
Results of operations
|
May 12, 2022 | May 12, 2022 |
| 8-K |
Current report
Officer or director change, Other events
|
May 6, 2022 | May 3, 2022 |
| DEF 14A | Proxy statement | Apr 28, 2022 | Jun 21, 2022 |
| PRE 14A | Preliminary proxy statement | Apr 15, 2022 | Jun 21, 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 |
| 10-K | Annual report | Mar 30, 2022 | Dec 31, 2021 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Mar 24, 2022 | Mar 22, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 15, 2022 | Feb 15, 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 |
| 8-K |
Current report
Officer or director change
|
Dec 30, 2021 | Dec 24, 2021 |
| 10-Q | Quarterly report | Nov 10, 2021 | Sep 30, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 10, 2021 | Nov 10, 2021 |
| 10-Q | Quarterly report | Aug 12, 2021 | Jun 30, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2021 | Aug 12, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jul 1, 2021 | Jun 25, 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 |
| 10-Q | Quarterly report | May 13, 2021 | Mar 31, 2021 |
| 8-K |
Current report
Results of operations
|
May 13, 2021 | May 13, 2021 |
| DEF 14A | Proxy statement | Apr 30, 2021 | Apr 6, 2021 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Apr 15, 2021 | Apr 14, 2021 |
| 10-K | Annual report | Apr 6, 2021 | Dec 31, 2020 |
| 8-K |
Current report
Results of operations
|
Apr 6, 2021 | Dec 31, 2020 |
| NT 10-K | Filing | Apr 1, 2021 | Dec 31, 2020 |
| 4 | Insider transaction | Feb 3, 2021 | Feb 1, 2021 |
| 8-K |
Current report
Officer or director change, Bylaw or fiscal year change
|
Feb 2, 2021 | Feb 2, 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 |
| 10-Q | Quarterly report | Nov 13, 2020 | Sep 30, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2020 | Nov 12, 2020 |
| 4 | Insider transaction | Nov 5, 2020 | Nov 4, 2020 |
| 4 | Insider transaction | Oct 13, 2020 | Oct 4, 2020 |
| 8-K |
Current report
Officer or director change, Other events
|
Sep 16, 2020 | Sep 15, 2020 |
| 4 | Insider transaction | Sep 9, 2020 | Sep 4, 2020 |
| 10-Q | Quarterly report | Aug 14, 2020 | Jun 30, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 14, 2020 | Aug 13, 2020 |
| 4 | Insider transaction | Aug 6, 2020 | Aug 4, 2020 |
| 4 | Insider transaction | Jul 7, 2020 | Jul 2, 2020 |
| 8-K |
Current report
Shareholder vote results
|
Jun 30, 2020 | Jun 30, 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 |
| 8-K |
Current report
Other events
|
Jun 18, 2020 | Jun 18, 2020 |
| 10-Q/A | Amended quarterly report | Jun 11, 2020 | Mar 31, 2020 |
| DEFA14A | Additional proxy material | Jun 3, 2020 | — |
| 10-Q | Quarterly report | May 11, 2020 | Mar 31, 2020 |
| 8-K |
Current report
Results of operations
|
May 11, 2020 | May 8, 2020 |
| 4 | Insider transaction | May 6, 2020 | May 4, 2020 |
| DEF 14A | Proxy statement | Apr 29, 2020 | Apr 29, 2020 |
| 8-K |
Current report
Officer or director change, Other events
|
Apr 22, 2020 | Apr 21, 2020 |
| 10-K | Annual report | Apr 3, 2020 | Dec 31, 2019 |
| 8-K |
Current report
Results of operations
|
Apr 2, 2020 | Apr 2, 2020 |
| 8-K |
Current report
Other events
|
Mar 30, 2020 | Mar 30, 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 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 10, 2019 | Dec 9, 2019 |
| 10-Q | Quarterly report | Nov 7, 2019 | Sep 30, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2019 | Nov 7, 2019 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 24, 2019 | Sep 24, 2019 |
| 10-Q | Quarterly report | Aug 13, 2019 | Jun 30, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 13, 2019 | Aug 13, 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 | Aug 2, 2019 | Jun 21, 2019 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
Jun 26, 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 |
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.