Alpha Pro Tech Ltd SEC filings APT
Alpha Pro Tech Ltd has 815 filings in SEC EDGAR's recent list, going back to Aug 9, 1996. 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 7, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 16, 2026 (auditor change). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Oct 30, 2026 | — |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Oct 1, 2026 | Sep 30, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 28, 2026 |
| 4/A | Filing | Sep 30, 2026 | May 11, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 28, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 28, 2026 |
| 4 | Insider transaction | Sep 30, 2026 | Sep 28, 2026 |
| 4/A | Filing | Sep 29, 2026 | Sep 28, 2023 |
| 4/A | Filing | Sep 29, 2026 | Sep 28, 2023 |
| 4/A | Filing | Sep 29, 2026 | Sep 28, 2023 |
| 4/A | Filing | Sep 29, 2026 | Sep 28, 2023 |
| 4 | Insider transaction | Sep 29, 2026 | Sep 28, 2023 |
| 4 | Insider transaction | May 19, 2026 | May 15, 2026 |
| 4 | Insider transaction | May 18, 2026 | May 14, 2026 |
| 144 | Notice of proposed sale | May 14, 2026 | — |
| 4 | Insider transaction | May 13, 2026 | May 11, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 28, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 26, 2026 | — |
| 4 | Insider transaction | Mar 18, 2026 | Mar 16, 2026 |
| 144 | Notice of proposed sale | Mar 17, 2026 | — |
| 144 | Notice of proposed sale | Mar 16, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 13, 2026 | — |
| 4 | Insider transaction | Jan 7, 2026 | Jan 5, 2026 |
| 4 | Insider transaction | Dec 8, 2025 | Dec 5, 2025 |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 144 | Notice of proposed sale | Dec 8, 2025 | — |
| 4/A | Filing | Oct 1, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Oct 1, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 29, 2025 |
| 4/A | Filing | Sep 30, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Sep 30, 2025 | Sep 29, 2025 |
| 4 | Insider transaction | Sep 11, 2025 | Sep 9, 2025 |
| 144 | Notice of proposed sale | Sep 11, 2025 | — |
| 4 | Insider transaction | Apr 24, 2025 | Mar 16, 2020 |
| 4 | Insider transaction | Apr 24, 2025 | Mar 16, 2020 |
| 4 | Insider transaction | Mar 20, 2025 | Mar 18, 2025 |
| 144 | Notice of proposed sale | Mar 18, 2025 | — |
| SCHEDULE 13D/A | Amended ownership over 5% (active) | Feb 12, 2025 | — |
| 4 | Insider transaction | Jan 10, 2025 | Jan 7, 2025 |
| 4/A | Filing | Oct 3, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Oct 2, 2024 | Sep 30, 2024 |
| 4 | Insider transaction | Sep 18, 2024 | Sep 16, 2024 |
| 144 | Notice of proposed sale | Sep 16, 2024 | — |
| SC 13G | Ownership over 5% (passive) | May 30, 2024 | — |
| 4/A | Filing | Mar 26, 2024 | Mar 15, 2024 |
| 4/A | Filing | Mar 26, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 25, 2024 | Mar 21, 2024 |
| 4 | Insider transaction | Mar 22, 2024 | Mar 20, 2024 |
| 144 | Notice of proposed sale | Mar 21, 2024 | — |
| 144 | Notice of proposed sale | Mar 21, 2024 | — |
| 144 | Notice of proposed sale | Mar 20, 2024 | — |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 20, 2024 | Mar 18, 2024 |
| 4 | Insider transaction | Mar 19, 2024 | Mar 15, 2024 |
| 4 | Insider transaction | Mar 18, 2024 | Mar 14, 2024 |
| 144 | Notice of proposed sale | Mar 14, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G | Ownership over 5% (passive) | Feb 13, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 8, 2024 | — |
| 4 | Insider transaction | Jan 9, 2024 | Jan 8, 2024 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Oct 2, 2023 | Sep 28, 2023 |
| 4 | Insider transaction | Sep 12, 2023 | Sep 8, 2023 |
| 144 | Notice of proposed sale | Sep 7, 2023 | — |
| 4 | Insider transaction | May 3, 2023 | May 1, 2023 |
| 3 | Initial insider ownership | Apr 17, 2023 | Apr 6, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 16, 2023 | Mar 14, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2023 | — |
| SC 13D/A | Amended ownership over 5% (active) | Feb 10, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2023 | — |
| 4 | Insider transaction | Jan 10, 2023 | Dec 30, 2022 |
| 4 | Insider transaction | Nov 16, 2022 | Nov 14, 2022 |
| 4 | Insider transaction | Sep 27, 2022 | Sep 23, 2022 |
| 4 | Insider transaction | Sep 27, 2022 | Sep 23, 2022 |
| 4 | Insider transaction | Sep 27, 2022 | Sep 23, 2022 |
| 4 | Insider transaction | Sep 27, 2022 | Sep 23, 2022 |
| 4 | Insider transaction | Sep 22, 2022 | Sep 20, 2022 |
| 4 | Insider transaction | May 25, 2022 | May 23, 2022 |
| SC 13G | Ownership over 5% (passive) | Mar 29, 2022 | — |
| SC 13D/A | Amended ownership over 5% (active) | Mar 2, 2022 | — |
| SC 13G | Ownership over 5% (passive) | Feb 14, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2022 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 9, 2022 | — |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Sep 28, 2021 | Sep 24, 2021 |
| 4 | Insider transaction | Sep 28, 2021 | Sep 24, 2021 |
| 4 | Insider transaction | Sep 28, 2021 | Sep 24, 2021 |
| 4 | Insider transaction | Sep 28, 2021 | Sep 24, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Jul 12, 2021 | — |
| 4 | Insider transaction | Jun 17, 2021 | Jun 15, 2021 |
| 4 | Insider transaction | May 28, 2021 | May 26, 2021 |
| 4 | Insider transaction | Mar 23, 2021 | Mar 19, 2021 |
| SC 13D | Ownership over 5% (active) | Feb 16, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 10, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 2, 2021 | — |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 16, 2020 | Dec 14, 2020 |
| 4 | Insider transaction | Dec 14, 2020 | Dec 10, 2020 |
| 4 | Insider transaction | Sep 24, 2020 | Sep 22, 2020 |
| 4 | Insider transaction | May 18, 2020 | May 14, 2020 |
| 4/A | Form 4/a - | May 18, 2020 | Feb 28, 2020 |
| 4/A | Form 4/a - | Mar 30, 2020 | Feb 28, 2020 |
| 4/A | Form 4/a - | Mar 30, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 25, 2020 | Mar 25, 2020 |
| 4 | Insider transaction | Mar 9, 2020 | Mar 6, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 3, 2020 |
| 4 | Insider transaction | Mar 5, 2020 | Mar 3, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| 4 | Insider transaction | Mar 3, 2020 | Feb 28, 2020 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2020 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 10, 2020 | — |
| 4 | Insider transaction | Sep 23, 2019 | Sep 19, 2019 |
| 4 | Insider transaction | Sep 23, 2019 | Sep 19, 2019 |
| 4 | Insider transaction | Sep 23, 2019 | Sep 19, 2019 |
| 4 | Insider transaction | Sep 23, 2019 | Sep 19, 2019 |
| 4 | Insider transaction | Mar 22, 2019 | Mar 20, 2019 |
| 4 | Insider transaction | Mar 22, 2019 | Mar 20, 2019 |
| 4 | Insider transaction | Mar 22, 2019 | Mar 20, 2019 |
| 4 | Insider transaction | Mar 22, 2019 | Mar 20, 2019 |
| 4 | Insider transaction | Mar 22, 2019 | Mar 20, 2019 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2019 | — |
| SC 13G | Ownership over 5% (passive) | Dec 21, 2018 | — |
| 4 | Insider transaction | Dec 17, 2018 | Dec 13, 2018 |
| 4 | Insider transaction | Sep 25, 2018 | Sep 21, 2018 |
| 4 | Insider transaction | Sep 25, 2018 | Sep 21, 2018 |
| 4 | Insider transaction | Sep 25, 2018 | Sep 21, 2018 |
| 4 | Insider transaction | Sep 25, 2018 | Sep 21, 2018 |
| 4 | Insider transaction | Sep 24, 2018 | Sep 24, 2018 |
| 4 | Insider transaction | Sep 5, 2018 | Sep 5, 2018 |
| 4 | Insider transaction | Aug 16, 2018 | Aug 14, 2018 |
| 4 | Insider transaction | Jun 13, 2018 | Jun 13, 2018 |
| 4 | Insider transaction | Jun 7, 2018 | Jun 6, 2018 |
| 4 | Insider transaction | Mar 23, 2018 | Mar 21, 2018 |
| 4 | Insider transaction | Mar 23, 2018 | Mar 21, 2018 |
| 4 | Insider transaction | Mar 23, 2018 | Mar 21, 2018 |
| 4 | Insider transaction | Mar 23, 2018 | Mar 21, 2018 |
| 4 | Insider transaction | Mar 22, 2018 | Mar 20, 2018 |
| 4 | Insider transaction | Mar 20, 2018 | Mar 16, 2018 |
| 4 | Insider transaction | Mar 20, 2018 | Mar 16, 2018 |
| 4 | Insider transaction | Mar 16, 2018 | Mar 14, 2018 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2018 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2018 | — |
| 4 | Insider transaction | Jan 25, 2018 | Jan 23, 2018 |
| 3 | Initial insider ownership | Jan 8, 2018 | Dec 27, 2017 |
| 4 | Insider transaction | Dec 21, 2017 | Dec 19, 2017 |
| 4 | Insider transaction | Dec 21, 2017 | Dec 19, 2017 |
| 4 | Insider transaction | Dec 21, 2017 | Dec 19, 2017 |
| 4 | Insider transaction | Dec 21, 2017 | Dec 19, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Dec 14, 2017 | — |
| 4 | Insider transaction | Dec 13, 2017 | Dec 11, 2017 |
| 4 | Insider transaction | Nov 13, 2017 | Nov 10, 2017 |
| 4 | Insider transaction | Sep 25, 2017 | Sep 21, 2017 |
| 3/A | Form 3/a - | Apr 13, 2017 | Mar 31, 2017 |
| 3 | Initial insider ownership | Apr 10, 2017 | Apr 10, 2017 |
| SC 13G/A | Amended ownership over 5% (passive) | Mar 13, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2017 | — |
| 4 | Insider transaction | Dec 21, 2016 | Dec 19, 2016 |
| 4 | Insider transaction | Dec 21, 2016 | Dec 19, 2016 |
| 4 | Insider transaction | Dec 21, 2016 | Dec 19, 2016 |
| 4 | Insider transaction | Aug 23, 2016 | Aug 22, 2016 |
| 4 | Insider transaction | Aug 19, 2016 | Aug 17, 2016 |
| 4 | Insider transaction | Jun 27, 2016 | Jun 24, 2016 |
| 4 | Insider transaction | Jun 27, 2016 | Jun 24, 2016 |
| 4 | Insider transaction | Jun 27, 2016 | Jun 24, 2016 |
| 4 | Insider transaction | Jun 27, 2016 | Jun 24, 2016 |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2016 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2016 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 11, 2016 | — |
| 3 | Initial insider ownership | Jan 13, 2016 | Jan 4, 2016 |
| 4 | Insider transaction | Nov 20, 2015 | Nov 18, 2015 |
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.
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Company profile
- Industry
- Orthopedic, Prosthetic & Surgical Appliances & Supplies (SIC 3842)
- Listed as
- APT (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Aurora
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 884269
Other Orthopedic, Prosthetic & Surgical Appliances & Supplies companies
- Intuitive Surgical Inc ISRG
- Edwards Lifesciences Corp EW
- STERIS plc STE
- Zimmer Biomet Holdings, Inc. ZBH
- Smith & Nephew PLC SNN
- Align Technology Inc ALGN
- MSA Safety Inc MSA
- Establishment Labs Holdings Inc. ESTA
All 29 Orthopedic, Prosthetic & Surgical Appliances & Supplies companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.