Hudson Technologies Inc /NY SEC filings HDSN
Hudson Technologies Inc /NY has 1,004 filings in SEC EDGAR's recent list, going back to Sep 15, 2005. Its latest annual report, Form ARS, was filed on Apr 24, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 4 | Insider transaction | Nov 2, 2026 | Oct 29, 2026 |
| 4 | Insider transaction | Sep 28, 2026 | Sep 24, 2026 |
| 4 | Insider transaction | Sep 23, 2026 | Sep 21, 2026 |
| 4 | Insider transaction | Sep 18, 2026 | Sep 16, 2026 |
| 4 | Insider transaction | Sep 4, 2026 | Sep 2, 2026 |
| 4 | Insider transaction | Aug 26, 2026 | Aug 24, 2026 |
| 4 | Insider transaction | Aug 14, 2026 | Aug 12, 2026 |
| 4 | Insider transaction | Jul 31, 2026 | Jul 29, 2026 |
| 4 | Insider transaction | Jul 22, 2026 | Jul 20, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 14, 2026 | — |
| 4 | Insider transaction | Jul 8, 2026 | Jul 6, 2026 |
| 4 | Insider transaction | Jul 2, 2026 | Jun 30, 2026 |
| 3 | Initial insider ownership | Jul 2, 2026 | Jun 30, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Jul 2, 2026 | — |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| 4 | Insider transaction | Jun 22, 2026 | Jun 17, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 5, 2026 | — |
| 4/A | Amended statement of changes in beneficial ownership of securities | May 21, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 21, 2026 | May 19, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 14, 2026 |
| 4 | Insider transaction | May 15, 2026 | May 13, 2026 |
| 4 | Insider transaction | Apr 14, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 14, 2026 | Apr 10, 2026 |
| 4 | Insider transaction | Apr 14, 2026 | Apr 10, 2026 |
| 3 | Initial insider ownership | Apr 14, 2026 | Apr 10, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 9, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 3 | Initial insider ownership | Feb 2, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| 4/A | Primary document | Dec 15, 2025 | Dec 5, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 10, 2025 | — |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 4 | Insider transaction | Nov 25, 2025 | Nov 24, 2025 |
| 3 | Initial insider ownership | Nov 24, 2025 | Nov 24, 2025 |
| 4 | Insider transaction | Nov 18, 2025 | Nov 17, 2025 |
| 4 | Insider transaction | Sep 26, 2025 | Sep 24, 2025 |
| 4 | Insider transaction | Aug 1, 2025 | Jul 31, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 24, 2025 | — |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| 4 | Insider transaction | Jun 20, 2025 | Jun 18, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| 4 | Insider transaction | Mar 17, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 13, 2025 |
| 4 | Insider transaction | Mar 17, 2025 | Mar 13, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Mar 12, 2025 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 7, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 3 | Initial insider ownership | Aug 7, 2024 | Jul 30, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 19, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 19, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 19, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 19, 2024 |
| 4 | Insider transaction | Jun 21, 2024 | Jun 19, 2024 |
| 4 | Insider transaction | Jun 18, 2024 | Jun 14, 2024 |
| 4 | Insider transaction | Jun 14, 2024 | Jun 12, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 27, 2024 |
| 4 | Insider transaction | Feb 28, 2024 | Feb 27, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 12, 2024 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Jan 26, 2024 | — |
| 4 | Insider transaction | Dec 14, 2023 | Dec 12, 2023 |
| 4 | Insider transaction | Oct 27, 2023 | Oct 25, 2023 |
| 4 | Insider transaction | Sep 14, 2023 | Sep 12, 2023 |
| 4 | Insider transaction | Jul 27, 2023 | Jul 19, 2023 |
| 4 | Insider transaction | Jul 27, 2023 | Jul 19, 2023 |
| 4 | Insider transaction | Jun 22, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 16, 2023 | Jun 14, 2023 |
| 4 | Insider transaction | Jun 15, 2023 | Jun 14, 2023 |
| 144 | Notice of proposed sale | Jun 13, 2023 | — |
| 4 | Insider transaction | Jun 6, 2023 | Jun 2, 2023 |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| 4 | Insider transaction | Mar 3, 2023 | Mar 1, 2023 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 15, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 13, 2023 | — |
| 4/A | Amended statement of changes in beneficial ownership of securities | Feb 7, 2023 | Jun 9, 2021 |
| SC 13G | Ownership over 5% (passive) | Feb 3, 2023 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 2, 2023 | — |
| 4 | Insider transaction | Jan 9, 2023 | Jan 6, 2023 |
| 4 | Insider transaction | Dec 14, 2022 | Dec 12, 2022 |
| 4 | Insider transaction | Nov 10, 2022 | Nov 8, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| 3 | Initial insider ownership | Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| 3 | Initial insider ownership | Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| 4 | Insider transaction | Oct 4, 2022 | Sep 30, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 28, 2022 | — |
| 4 | Insider transaction | Aug 8, 2022 | Aug 8, 2022 |
| 4 | Insider transaction | Jul 6, 2022 | Jul 5, 2022 |
| 4 | Insider transaction | Jun 17, 2022 | Jun 15, 2022 |
| 4 | Insider transaction | Jun 13, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 13, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 13, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 13, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 13, 2022 | Jun 9, 2022 |
| 4 | Insider transaction | Jun 6, 2022 | Jun 3, 2022 |
| 4 | Insider transaction | May 31, 2022 | May 27, 2022 |
| 4 | Insider transaction | May 18, 2022 | May 17, 2022 |
| 4 | Insider transaction | May 9, 2022 | May 9, 2022 |
| 4 | Insider transaction | May 9, 2022 | May 6, 2022 |
| 4 | Insider transaction | Apr 18, 2022 | Apr 18, 2022 |
| 4 | Insider transaction | Apr 1, 2022 | Mar 31, 2022 |
| SC 13G | Ownership over 5% (passive) | Mar 22, 2022 | — |
| 4 | Insider transaction | Mar 14, 2022 | Mar 11, 2022 |
| 4 | Insider transaction | Feb 28, 2022 | Feb 24, 2022 |
| 4 | Insider transaction | Feb 28, 2022 | Feb 24, 2022 |
| 4 | Insider transaction | Feb 28, 2022 | Feb 24, 2022 |
| 4 | Insider transaction | Feb 28, 2022 | Feb 24, 2022 |
| 4 | Insider transaction | Feb 17, 2022 | Feb 15, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 14, 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 | Feb 8, 2022 | Jan 21, 2022 |
| 5 | Annual insider ownership | Feb 8, 2022 | Dec 31, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 7, 2022 | — |
| 4 | Insider transaction | Feb 4, 2022 | Feb 3, 2022 |
| 4 | Insider transaction | Jan 18, 2022 | Dec 10, 2021 |
| 4 | Insider transaction | Jan 18, 2022 | Dec 15, 2021 |
| 4 | Insider transaction | Jan 18, 2022 | Nov 26, 2021 |
| 4 | Insider transaction | Dec 13, 2021 | Dec 9, 2021 |
| 4 | Insider transaction | Nov 19, 2021 | Nov 18, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Nov 17, 2021 | Nov 15, 2021 |
| 4 | Insider transaction | Sep 15, 2021 | Sep 13, 2021 |
| 4 | Insider transaction | Aug 31, 2021 | Aug 30, 2021 |
| 4 | Insider transaction | Aug 26, 2021 | Aug 24, 2021 |
| 4 | Insider transaction | Aug 18, 2021 | Aug 17, 2021 |
| 4 | Insider transaction | Aug 9, 2021 | Aug 9, 2021 |
| 4 | Insider transaction | Aug 2, 2021 | Jul 29, 2021 |
| 4 | Insider transaction | Jul 6, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| 4 | Insider transaction | Jul 2, 2021 | Jul 1, 2021 |
| SC 13G | Ownership over 5% (passive) | Jul 1, 2021 | — |
| 4 | Insider transaction | Jun 22, 2021 | Jun 2, 2021 |
| 4 | Insider transaction | Jun 11, 2021 | Jun 9, 2021 |
| 4 | Insider transaction | Jun 7, 2021 | Jun 3, 2021 |
| 4 | Insider transaction | Jun 3, 2021 | Jun 2, 2021 |
| 4 | Insider transaction | Jun 2, 2021 | Jun 1, 2021 |
| 4 | Insider transaction | Jun 2, 2021 | May 28, 2021 |
| 4 | Insider transaction | Jun 1, 2021 | May 27, 2021 |
| 4 | Insider transaction | May 28, 2021 | May 27, 2021 |
| 4 | Insider transaction | May 28, 2021 | May 27, 2021 |
| 4 | Insider transaction | May 27, 2021 | May 25, 2021 |
| SC 13D | Ownership over 5% (active) | May 25, 2021 | — |
| SC 13G | Ownership over 5% (passive) | May 24, 2021 | — |
| SC 13G | Ownership over 5% (passive) | May 4, 2021 | — |
| SC 13D/A | Amended ownership over 5% (active) | May 4, 2021 | — |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 16, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 15, 2021 | Mar 12, 2021 |
| 4 | Insider transaction | Mar 11, 2021 | Feb 16, 2021 |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 16, 2021 | — |
| SC 13G | Ownership over 5% (passive) | Feb 12, 2021 | — |
| SC 13G/A | Amended ownership over 5% (passive) | Feb 8, 2021 | — |
| 4 | Insider transaction | Dec 17, 2020 | Dec 15, 2020 |
| 4 | Insider transaction | Dec 3, 2020 | Nov 30, 2020 |
| 4 | Insider transaction | Nov 18, 2020 | Nov 16, 2020 |
| 4 | Insider transaction | Sep 16, 2020 | Sep 14, 2020 |
| 3 | Initial insider ownership | Sep 16, 2020 | Sep 14, 2020 |
| 3 | Initial insider ownership | Sep 16, 2020 | Sep 14, 2020 |
| 3 | Initial insider ownership | Sep 1, 2020 | Sep 1, 2020 |
| 4 | Insider transaction | Aug 11, 2020 | Aug 10, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
| 4 | Insider transaction | Jul 22, 2020 | Jul 20, 2020 |
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
- Wholesale-Machinery, Equipment & Supplies (SIC 5080)
- Listed as
- HDSN (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- NY
- Headquarters
- Pearl River, NY
- SEC filer status
- Accelerated filer
- SEC CIK
- 925528
Other Wholesale-Machinery, Equipment & Supplies companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.