Hudson Technologies Inc /NY SEC filings HDSN
Hudson Technologies Inc /NY has 1,003 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 Aug 7, 2026, covering the quarter ended Jun 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 |
| 8-K |
Current report
Results of operations
|
Oct 28, 2026 | Oct 28, 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 |
| 10-Q | Quarterly report | Aug 7, 2026 | Jun 30, 2026 |
| 8-K |
Current report
Other events
|
Aug 6, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 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 |
| 8-K |
Current report
Other events
|
Jun 12, 2026 | Jun 11, 2026 |
| 8-K |
Current report
Shareholder vote results
|
Jun 11, 2026 | Jun 10, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 5, 2026 | — |
| 8-K |
Current report
Other events
|
May 28, 2026 | May 27, 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 |
| 8-K |
Current report
Material agreement, New debt
|
May 20, 2026 | May 19, 2026 |
| 8-K |
Current report
Regulation FD disclosure
|
May 18, 2026 | May 18, 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 |
| 10-Q | Quarterly report | May 11, 2026 | Mar 31, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| ARS | Annual report to shareholders | Apr 24, 2026 | Dec 31, 2025 |
| DEFA14A | Additional proxy material | Apr 24, 2026 | — |
| DEF 14A | Proxy statement | Apr 24, 2026 | Jun 10, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Apr 13, 2026 | Apr 10, 2026 |
| SCHEDULE 13G | Ownership over 5% (passive) | Apr 9, 2026 | — |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Mar 27, 2026 | — |
| 8-K |
Current report
Officer or director change, Other events
|
Mar 18, 2026 | Mar 13, 2026 |
| 10-K | Annual report | Mar 16, 2026 | Dec 31, 2025 |
| 8-K |
Current report
Results of operations
|
Mar 4, 2026 | Mar 4, 2026 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | Feb 17, 2026 | — |
| 3 | Initial insider ownership | Feb 2, 2026 | Jan 30, 2026 |
| 8-K |
Current report
Officer or director change
|
Feb 2, 2026 | Jan 30, 2026 |
| 8-K |
Current report
Other events
|
Jan 30, 2026 | Jan 30, 2026 |
| 4 | Insider transaction | Jan 12, 2026 | Jan 8, 2026 |
| EFFECT | Filing | Jan 7, 2026 | — |
| CORRESP | Letter to the SEC | Jan 5, 2026 | — |
| 8-K |
Current report
Other events
|
Dec 17, 2025 | Dec 17, 2025 |
| S-3 | Shelf registration | Dec 16, 2025 | — |
| 4/A | Primary document | Dec 15, 2025 | Dec 5, 2025 |
| SCHEDULE 13D | Ownership over 5% (active) | Dec 10, 2025 | — |
| 8-K |
Current report
Officer or director change
|
Dec 9, 2025 | Dec 9, 2025 |
| 4 | Insider transaction | Dec 9, 2025 | Dec 5, 2025 |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Dec 1, 2025 | Nov 25, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Nov 13, 2025 | Nov 13, 2025 |
| 10-Q | Quarterly report | Nov 7, 2025 | Sep 30, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2025 | Nov 5, 2025 |
| 8-K |
Current report
Results of operations, Officer or director change, Regulation FD disclosure
|
Nov 3, 2025 | Nov 3, 2025 |
| 8-K |
Current report
Other events
|
Oct 22, 2025 | Oct 22, 2025 |
| 4 | Insider transaction | Sep 26, 2025 | Sep 24, 2025 |
| 10-Q | Quarterly report | Aug 1, 2025 | Jun 30, 2025 |
| 4 | Insider transaction | Aug 1, 2025 | Jul 31, 2025 |
| 8-K |
Current report
Results of operations
|
Jul 30, 2025 | Jul 30, 2025 |
| SCHEDULE 13G | Ownership over 5% (passive) | Jun 24, 2025 | — |
| 8-K |
Current report
Material agreement, New debt
|
Jun 23, 2025 | Jun 23, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jun 12, 2025 | Jun 11, 2025 |
| SCHEDULE 13G/A | Amended ownership over 5% (passive) | May 14, 2025 | — |
| 10-Q | Quarterly report | May 9, 2025 | Mar 31, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| ARS | Annual report to shareholders | Apr 25, 2025 | Dec 31, 2024 |
| DEFA14A | Additional proxy material | Apr 25, 2025 | — |
| DEF 14A | Proxy statement | Apr 25, 2025 | Jun 11, 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 | — |
| 10-K | Annual report | Mar 12, 2025 | Dec 31, 2024 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2025 | Mar 6, 2025 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 12, 2024 | — |
| 4 | Insider transaction | Nov 12, 2024 | Nov 7, 2024 |
| 10-Q | Quarterly report | Nov 8, 2024 | Sep 30, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2024 | Nov 4, 2024 |
| SC 13G/A | Amended ownership over 5% (passive) | Nov 4, 2024 | — |
| 8-K |
Current report
Material agreement, New debt, Regulation FD disclosure
|
Oct 25, 2024 | Oct 23, 2024 |
| S-8 | Employee stock plan registration | Aug 23, 2024 | — |
| 10-Q | Quarterly report | Aug 9, 2024 | Jun 30, 2024 |
| 3 | Initial insider ownership | Aug 7, 2024 | Jul 30, 2024 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Aug 6, 2024 | Aug 6, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Jul 30, 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 |
| 8-K |
Current report
Shareholder vote results
|
Jun 13, 2024 | Jun 12, 2024 |
| 8-K |
Current report
Material agreement, New debt
|
Jun 7, 2024 | Jun 6, 2024 |
| 10-Q | Quarterly report | May 8, 2024 | Mar 31, 2024 |
| 8-K |
Current report
Results of operations
|
May 1, 2024 | May 1, 2024 |
| ARS | Annual report to shareholders | Apr 25, 2024 | Dec 31, 2023 |
| DEFA14A | Additional proxy material | Apr 25, 2024 | — |
| DEF 14A | Proxy statement | Apr 25, 2024 | Jun 12, 2024 |
| 10-K | Annual report | Mar 14, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2024 | Mar 6, 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 |
| 10-Q | Quarterly report | Nov 7, 2023 | Sep 30, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2023 | Nov 1, 2023 |
| 4 | Insider transaction | Oct 27, 2023 | Oct 25, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 12, 2023 | Oct 11, 2023 |
| 4 | Insider transaction | Sep 14, 2023 | Sep 12, 2023 |
| 8-K |
Current report
Agreement ended, Regulation FD disclosure
|
Aug 22, 2023 | Aug 21, 2023 |
| 10-Q | Quarterly report | Aug 8, 2023 | Jun 30, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 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 | — |
| 8-K |
Current report
Shareholder vote results
|
Jun 8, 2023 | Jun 7, 2023 |
| 4 | Insider transaction | Jun 6, 2023 | Jun 2, 2023 |
| 10-Q | Quarterly report | May 9, 2023 | Mar 31, 2023 |
| 8-K |
Current report
Results of operations
|
May 3, 2023 | May 3, 2023 |
| ARS | Annual report to shareholders | Apr 26, 2023 | Dec 31, 2022 |
| DEFA14A | Additional proxy material | Apr 26, 2023 | — |
| DEF 14A | Proxy statement | Apr 26, 2023 | — |
| 4 | Insider transaction | Mar 15, 2023 | Mar 14, 2023 |
| 10-K | Annual report | Mar 14, 2023 | Dec 31, 2022 |
| 8-K |
Current report
Results of operations
|
Mar 8, 2023 | Mar 8, 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 |
| 8-K/A |
Amended current report
Officer or director change
|
Feb 23, 2023 | Sep 30, 2022 |
| 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 | — |
| EFFECT | Filing | Jan 23, 2023 | — |
| CORRESP | Letter to the SEC | Jan 19, 2023 | — |
| UPLOAD | Letter from the SEC | Jan 18, 2023 | — |
| S-3 | Shelf registration | Jan 13, 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 |
| 10-Q | Quarterly report | Nov 8, 2022 | Sep 30, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2022 | Nov 2, 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 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 3, 2022 | Sep 30, 2022 |
| SC 13G/A | Amended ownership over 5% (passive) | Sep 28, 2022 | — |
| 10-Q | Quarterly report | Aug 8, 2022 | Jun 30, 2022 |
| 4 | Insider transaction | Aug 8, 2022 | Aug 8, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2022 | Aug 3, 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 |
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.