SEC EDGAR filings, ownership reports, and insider transactions for HUDSON TECHNOLOGIES INC /NY.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 12 Jan 2026 | 08 Jan 2026 | |
| EFFECT | Open Document | Open Filing | 07 Jan 2026 | 333-292167 | ||
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 17 Dec 2025 | 17 Dec 2025 | 001-13412 |
| S-3 | Open Document | Data | Open Filing | S-3 | 16 Dec 2025 | 333-292167 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Dec 2025 | 05 Dec 2025 | |
| SCHEDULE 13D | Open Document | Open Filing | 10 Dec 2025 | 005-48635 | ||
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 09 Dec 2025 | 09 Dec 2025 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2025 | 05 Dec 2025 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 01 Dec 2025 | 25 Nov 2025 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 25 Nov 2025 | 24 Nov 2025 | |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 24 Nov 2025 | 24 Nov 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Nov 2025 | 17 Nov 2025 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 13 Nov 2025 | 13 Nov 2025 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Nov 2025 | 30 Sep 2025 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 05 Nov 2025 | 05 Nov 2025 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 Nov 2025 | 03 Nov 2025 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 22 Oct 2025 | 22 Oct 2025 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 26 Sep 2025 | 24 Sep 2025 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 01 Aug 2025 | 30 Jun 2025 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 01 Aug 2025 | 31 Jul 2025 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 30 Jul 2025 | 30 Jul 2025 | 001-13412 |
| SCHEDULE 13G | Open Document | Open Filing | 24 Jun 2025 | 005-48635 | ||
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 23 Jun 2025 | 23 Jun 2025 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jun 2025 | 18 Jun 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jun 2025 | 18 Jun 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jun 2025 | 18 Jun 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jun 2025 | 18 Jun 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 20 Jun 2025 | 18 Jun 2025 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 12 Jun 2025 | 11 Jun 2025 | 001-13412 |
| SCHEDULE 13G/A | Open Document | Open Filing | 14 May 2025 | 005-48635 | ||
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2025 | 31 Mar 2025 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 07 May 2025 | 07 May 2025 | 001-13412 |
| ARS | Open Document | Open Filing | ARS | 25 Apr 2025 | 31 Dec 2024 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 25 Apr 2025 | 001-13412 | |
| DEF 14A | Open Document | Data | Open Filing | DEF 14A | 25 Apr 2025 | 11 Jun 2025 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 17 Mar 2025 | 13 Mar 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 17 Mar 2025 | 13 Mar 2025 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 17 Mar 2025 | 13 Mar 2025 | |
| SCHEDULE 13G | Open Document | Open Filing | 12 Mar 2025 | 005-48635 | ||
| 10-K | Open Document | Data | Open Filing | 10-K | 12 Mar 2025 | 31 Dec 2024 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 06 Mar 2025 | 06 Mar 2025 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | 12 Nov 2024 | 005-48635 | ||
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 12 Nov 2024 | 07 Nov 2024 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Nov 2024 | 30 Sep 2024 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 04 Nov 2024 | 04 Nov 2024 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | 04 Nov 2024 | 005-48635 | ||
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 25 Oct 2024 | 23 Oct 2024 | 001-13412 |
| S-8 | Open Document | Open Filing | FORM S-8 | 23 Aug 2024 | 333-281749 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Aug 2024 | 30 Jun 2024 | 001-13412 |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 07 Aug 2024 | 30 Jul 2024 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 06 Aug 2024 | 06 Aug 2024 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 30 Jul 2024 | 30 Jul 2024 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jun 2024 | 19 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jun 2024 | 19 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jun 2024 | 19 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jun 2024 | 19 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 21 Jun 2024 | 19 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Jun 2024 | 14 Jun 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Jun 2024 | 12 Jun 2024 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 13 Jun 2024 | 12 Jun 2024 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 07 Jun 2024 | 06 Jun 2024 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 May 2024 | 31 Mar 2024 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 01 May 2024 | 01 May 2024 | 001-13412 |
| ARS | Open Document | Open Filing | ARS | 25 Apr 2024 | 31 Dec 2023 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 25 Apr 2024 | 001-13412 | |
| DEF 14A | Open Document | Data | Open Filing | FORM-DEF14A | 25 Apr 2024 | 12 Jun 2024 | 001-13412 |
| 10-K | Open Document | Data | Open Filing | 10-K | 14 Mar 2024 | 31 Dec 2023 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 06 Mar 2024 | 06 Mar 2024 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2024 | 27 Feb 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2024 | 27 Feb 2024 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2024 | 27 Feb 2024 | |
| SC 13G/A | Open Document | Open Filing | 14 Feb 2024 | 005-48635 | ||
| SC 13G/A | Open Document | Open Filing | HDSN1231202313GA | 12 Feb 2024 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 26 Jan 2024 | 005-48635 | ||
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Dec 2023 | 12 Dec 2023 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 07 Nov 2023 | 30 Sep 2023 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 01 Nov 2023 | 01 Nov 2023 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 27 Oct 2023 | 25 Oct 2023 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 12 Oct 2023 | 11 Oct 2023 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Sep 2023 | 12 Sep 2023 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 22 Aug 2023 | 21 Aug 2023 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Aug 2023 | 30 Jun 2023 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 02 Aug 2023 | 02 Aug 2023 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 27 Jul 2023 | 19 Jul 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 27 Jul 2023 | 19 Jul 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 22 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 16 Jun 2023 | 14 Jun 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 15 Jun 2023 | 14 Jun 2023 | |
| 144 | Open Document | Open Filing | 13 Jun 2023 | 001-13412 | ||
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 08 Jun 2023 | 07 Jun 2023 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 06 Jun 2023 | 02 Jun 2023 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 May 2023 | 31 Mar 2023 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 May 2023 | 03 May 2023 | 001-13412 |
| ARS | Open Document | Open Filing | ARS | 26 Apr 2023 | 31 Dec 2022 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 26 Apr 2023 | 001-13412 | |
| DEF 14A | Open Document | Data | Open Filing | DEF14A | 26 Apr 2023 | 001-13412 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 15 Mar 2023 | 14 Mar 2023 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 14 Mar 2023 | 31 Dec 2022 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 08 Mar 2023 | 08 Mar 2023 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 03 Mar 2023 | 01 Mar 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 03 Mar 2023 | 01 Mar 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 03 Mar 2023 | 01 Mar 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 03 Mar 2023 | 01 Mar 2023 | |
| 8-K/A | Open Document | Data | Open Filing | FORM 8-K/A | 23 Feb 2023 | 30 Sep 2022 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | 15 Feb 2023 | 005-48635 | ||
| SC 13G/A | Open Document | Open Filing | HDSN 13G | 13 Feb 2023 | 005-48635 | |
| 4/A | Open Document | Open Filing | AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 07 Feb 2023 | 09 Jun 2021 | |
| SC 13G | Open Document | Open Filing | 03 Feb 2023 | 005-48635 | ||
| SC 13G/A | Open Document | Open Filing | 02 Feb 2023 | 005-48635 | ||
| EFFECT | Open Document | Open Filing | 23 Jan 2023 | 333-269221 | ||
| CORRESP | Open Document | Open Filing | 19 Jan 2023 | |||
| UPLOAD | Open Document | Open Filing | 18 Jan 2023 | |||
| S-3 | Open Document | Open Filing | S-3 | 13 Jan 2023 | 333-269221 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 09 Jan 2023 | 06 Jan 2023 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Dec 2022 | 12 Dec 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 10 Nov 2022 | 08 Nov 2022 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Nov 2022 | 30 Sep 2022 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 02 Nov 2022 | 02 Nov 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 3 | Open Document | Open Filing | INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Oct 2022 | 30 Sep 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 Oct 2022 | 30 Sep 2022 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | 28 Sep 2022 | 005-48635 | ||
| 10-Q | Open Document | Data | Open Filing | 10-Q | 08 Aug 2022 | 30 Jun 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 08 Aug 2022 | 08 Aug 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 Aug 2022 | 03 Aug 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 06 Jul 2022 | 05 Jul 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 17 Jun 2022 | 15 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Jun 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Jun 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Jun 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Jun 2022 | 09 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Jun 2022 | 09 Jun 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 10 Jun 2022 | 09 Jun 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 06 Jun 2022 | 03 Jun 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 31 May 2022 | 27 May 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 May 2022 | 17 May 2022 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 10 May 2022 | 31 Mar 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 09 May 2022 | 09 May 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 09 May 2022 | 06 May 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 04 May 2022 | 04 May 2022 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 26 Apr 2022 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 26 Apr 2022 | 09 Jun 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Apr 2022 | 18 Apr 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 01 Apr 2022 | 31 Mar 2022 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 24 Mar 2022 | 31 Dec 2021 | 001-13412 |
| SC 13G | Open Document | Open Filing | 22 Mar 2022 | 005-48635 | ||
| NT 10-K | Open Document | Open Filing | NT 10-K | 16 Mar 2022 | 31 Dec 2021 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 14 Mar 2022 | 11 Mar 2022 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 08 Mar 2022 | 08 Mar 2022 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 Mar 2022 | 02 Mar 2022 | 001-13412 |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2022 | 24 Feb 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2022 | 24 Feb 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2022 | 24 Feb 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 28 Feb 2022 | 24 Feb 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 17 Feb 2022 | 15 Feb 2022 | |
| SC 13G/A | Open Document | Open Filing | 14 Feb 2022 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | HDSN2213G | 14 Feb 2022 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | 10 Feb 2022 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 09 Feb 2022 | 005-48635 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 08 Feb 2022 | 21 Jan 2022 | |
| 5 | Open Document | Open Filing | ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP | 08 Feb 2022 | 31 Dec 2021 | |
| SC 13G/A | Open Document | Open Filing | 07 Feb 2022 | 005-48635 | ||
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 04 Feb 2022 | 03 Feb 2022 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Jan 2022 | 10 Dec 2021 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Jan 2022 | 15 Dec 2021 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 18 Jan 2022 | 26 Nov 2021 | |
| 4 | Open Document | Open Filing | STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES | 13 Dec 2021 | 09 Dec 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Nov 2021 | 18 Nov 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2021 | 15 Nov 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Nov 2021 | 15 Nov 2021 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 15 Nov 2021 | 30 Sep 2021 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 03 Nov 2021 | 03 Nov 2021 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 08 Oct 2021 | 07 Oct 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Sep 2021 | 13 Sep 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Aug 2021 | 30 Aug 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Aug 2021 | 24 Aug 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2021 | 17 Aug 2021 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 11 Aug 2021 | 30 Jun 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2021 | 09 Aug 2021 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 04 Aug 2021 | 04 Aug 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Aug 2021 | 29 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jul 2021 | 01 Jul 2021 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 01 Jul 2021 | 005-48635 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 29 Jun 2021 | 29 Jun 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2021 | 02 Jun 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2021 | 09 Jun 2021 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 11 Jun 2021 | 10 Jun 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jun 2021 | 03 Jun 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2021 | 02 Jun 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2021 | 01 Jun 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2021 | 28 May 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Jun 2021 | 27 May 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2021 | 27 May 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2021 | 27 May 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 May 2021 | 25 May 2021 | |
| SC 13D | Open Document | Open Filing | SC 13D | 25 May 2021 | 005-48635 | |
| SC 13G | Open Document | Open Filing | 24 May 2021 | 005-48635 | ||
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 11 May 2021 | 31 Mar 2021 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 05 May 2021 | 05 May 2021 | 001-13412 |
| SC 13G | Open Document | Open Filing | SC 13G | 04 May 2021 | 005-48635 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 04 May 2021 | 005-48635 | |
| DEFA14A | Open Document | Open Filing | DEFA14A | 28 Apr 2021 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 28 Apr 2021 | 10 Jun 2021 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2021 | 12 Mar 2021 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Mar 2021 | 12 Mar 2021 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 12 Mar 2021 | 31 Dec 2020 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2021 | 16 Feb 2021 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 03 Mar 2021 | 03 Mar 2021 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | 16 Feb 2021 | 005-48635 | |
| SC 13G | Open Document | Open Filing | HDSN1362020 | 12 Feb 2021 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 3 TO SCHEDULE 13G | 08 Feb 2021 | 005-48635 | |
| EFFECT | Open Document | Open Filing | 12 Jan 2021 | 333-251646 | ||
| S-3/A | Open Document | Open Filing | S-3/A | 12 Jan 2021 | 333-251646 | |
| CORRESP | Open Document | Open Filing | 06 Jan 2021 | |||
| UPLOAD | Open Document | Open Filing | 04 Jan 2021 | |||
| 8-K | Open Document | Open Filing | FORM 8-K | 29 Dec 2020 | 29 Dec 2020 | 001-13412 |
| S-3 | Open Document | Open Filing | S-3 | 23 Dec 2020 | 333-251646 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Dec 2020 | 15 Dec 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Dec 2020 | 30 Nov 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2020 | 16 Nov 2020 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 Nov 2020 | 30 Sep 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 05 Nov 2020 | 05 Nov 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 16 Sep 2020 | 14 Sep 2020 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2020 | 14 Sep 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2020 | 14 Sep 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2020 | 14 Sep 2020 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Sep 2020 | 01 Sep 2020 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 01 Sep 2020 | 01 Sep 2020 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2020 | 10 Aug 2020 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 11 Aug 2020 | 11 Aug 2020 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 05 Aug 2020 | 30 Jun 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 05 Aug 2020 | 05 Aug 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 03 Aug 2020 | 29 Jul 2020 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jul 2020 | 20 Jul 2020 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 20 Jul 2020 | 15 Jul 2020 | 001-13412 |
| S-8 | Open Document | Open Filing | S-8 | 30 Jun 2020 | 333-239561 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 24 Jun 2020 | 23 Jun 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 12 Jun 2020 | 11 Jun 2020 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 15 May 2020 | 31 Mar 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 06 May 2020 | 06 May 2020 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 28 Apr 2020 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 28 Apr 2020 | 11 Jun 2020 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 20 Apr 2020 | 17 Apr 2020 | 001-13412 |
| PRE 14A | Open Document | Open Filing | PRE 14A | 09 Apr 2020 | 11 Jun 2020 | 001-13412 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 13 Mar 2020 | 31 Dec 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 04 Mar 2020 | 04 Mar 2020 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | 14 Feb 2020 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | PEKIN SINGER STRAUSS ASSET MANAGEMENT, INC | 12 Feb 2020 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Feb 2020 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 12 Feb 2020 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | HDSN201913G | 11 Feb 2020 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 07 Feb 2020 | 005-48635 | ||
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13G | 31 Jan 2020 | 005-48635 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 30 Jan 2020 | 30 Jan 2020 | 001-13412 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Jan 2020 | 19 Dec 2019 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2020 | 19 Dec 2019 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Jan 2020 | 02 Jan 2020 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 03 Jan 2020 | 02 Jan 2020 | 001-13412 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2020 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2019 | 19 Dec 2019 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 20 Dec 2019 | 19 Dec 2019 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 15 Nov 2019 | 30 Sep 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 14 Nov 2019 | 14 Nov 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 12 Nov 2019 | 12 Nov 2019 | 001-13412 |
| NT 10-Q | Open Document | Open Filing | NT 10-Q | 12 Nov 2019 | 30 Sep 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Sep 2019 | 20 Sep 2019 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2019 | 27 Aug 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2019 | 27 Aug 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2019 | 27 Aug 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2019 | 27 Aug 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2019 | 27 Aug 2019 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 14 Aug 2019 | 30 Jun 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Aug 2019 | 09 Aug 2019 | 001-13412 |
| NT 10-Q | Open Document | Open Filing | NT 10-Q | 09 Aug 2019 | 30 Jun 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Aug 2019 | 01 Aug 2019 | 001-13412 |
| SC 13G | Open Document | Open Filing | HUDSON TECHNOLOGIES | 29 Jul 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 10 Jul 2019 | 005-48635 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 11 Jun 2019 | 11 Jun 2019 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 May 2019 | 22 May 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2019 | 14 May 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2019 | 09 May 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 08 May 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2019 | 02 May 2019 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2019 | 02 May 2019 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 02 May 2019 | 31 Mar 2019 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 01 May 2019 | 01 May 2019 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 26 Apr 2019 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | 26 Apr 2019 | 11 Jun 2019 | 001-13412 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 15 Mar 2019 | 31 Dec 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 06 Mar 2019 | 06 Mar 2019 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2019 | 19 Feb 2019 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | 14 Feb 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 13 Feb 2019 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | 13 Feb 2019 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | SC 13G | 12 Feb 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | PEKIN SINGER STRAUSS ASSET MANAGEMENT, INC | 11 Feb 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 08 Feb 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 13GHUDSON | 31 Jan 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 24 Jan 2019 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | 18 Jan 2019 | 005-48635 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jan 2019 | 31 Dec 2018 | |
| S-8 | Open Document | Open Filing | FORM S-8 | 21 Dec 2018 | 333-228971 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2018 | 12 Dec 2018 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 06 Dec 2018 | 05 Dec 2018 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Dec 2018 | 30 Nov 2018 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 03 Dec 2018 | 30 Nov 2018 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 30 Nov 2018 | 30 Sep 2018 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 30 Nov 2018 | 30 Jun 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 27 Nov 2018 | 26 Nov 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Nov 2018 | 21 Nov 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 15 Nov 2018 | 14 Nov 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 13 Nov 2018 | 09 Nov 2018 | 001-13412 |
| NT 10-Q | Open Document | Open Filing | NT 10-Q | 09 Nov 2018 | 30 Sep 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 24 Oct 2018 | 23 Oct 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 16 Oct 2018 | 15 Oct 2018 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2018 | 05 Sep 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2018 | 15 Aug 2018 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 16 Aug 2018 | 15 Aug 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 15 Aug 2018 | 14 Aug 2018 | 001-13412 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 09 Aug 2018 | 005-48635 | |
| NT 10-Q | Open Document | Open Filing | NT 10-Q | 09 Aug 2018 | 30 Jun 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Aug 2018 | 08 Aug 2018 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2018 | 26 Jul 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2018 | 26 Jul 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2018 | 26 Jul 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2018 | 26 Jul 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2018 | 26 Jul 2018 | |
| SC 13G/A | Open Document | Open Filing | 10 Jul 2018 | 005-48635 | ||
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Jun 2018 | 07 Jun 2018 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 May 2018 | 30 May 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2018 | 24 Feb 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2018 | 23 May 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 May 2018 | 18 May 2018 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 May 2018 | 31 Mar 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 May 2018 | 03 May 2018 | 001-13412 |
| EFFECT | Open Document | Open Filing | 27 Apr 2018 | 333-223755 | ||
| S-3/A | Open Document | Open Filing | FORM S-3/A | 27 Apr 2018 | 333-223755 | |
| CORRESP | Open Document | Open Filing | 24 Apr 2018 | |||
| DEFA14A | Open Document | Open Filing | DEFA14A | 23 Apr 2018 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEFINITIVE PROXY STATEMENT | 23 Apr 2018 | 07 Jun 2018 | 001-13412 |
| CORRESP | Open Document | Open Filing | 02 Apr 2018 | |||
| UPLOAD | Open Document | Open Filing | 28 Mar 2018 | |||
| S-3 | Open Document | Open Filing | FORM S-3 | 19 Mar 2018 | 333-223755 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 15 Mar 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 15 Mar 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 15 Mar 2018 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2018 | 15 Mar 2018 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 16 Mar 2018 | 16 Mar 2018 | 001-13412 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 16 Mar 2018 | 31 Dec 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Mar 2018 | 07 Mar 2018 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Feb 2018 | 13 Feb 2018 | 001-13412 |
| SC 13G | Open Document | Open Filing | 13 Feb 2018 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | 13G | 09 Feb 2018 | 005-48635 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 09 Feb 2018 | 005-48635 | |
| SC 13G | Open Document | Open Filing | SC 13G | 08 Feb 2018 | 005-48635 | |
| SC 13G | Open Document | Open Filing | 01 Feb 2018 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | HDSN 13G | 25 Jan 2018 | 005-48635 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2018 | 31 Dec 2017 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Jan 2018 | 31 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Dec 2017 | 19 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2017 | 15 Dec 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Dec 2017 | 15 Dec 2017 | |
| 8-K | Open Document | Open Filing | 8-K | 07 Dec 2017 | 06 Dec 2017 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2017 | 17 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2017 | 17 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2017 | 17 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 13 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 13 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 13 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 13 Nov 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Nov 2017 | 13 Nov 2017 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 09 Nov 2017 | 30 Sep 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Nov 2017 | 08 Nov 2017 | 001-13412 |
| 8-K/A | Open Document | Open Filing | FORM 8-K/A | 08 Nov 2017 | 10 Oct 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 11 Oct 2017 | 10 Oct 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 11 Oct 2017 | 10 Oct 2017 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2017 | 05 Sep 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 21 Aug 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 21 Aug 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 21 Aug 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 21 Aug 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 18 Aug 2017 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 18 Aug 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Aug 2017 | 18 Aug 2017 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 09 Aug 2017 | 30 Jun 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Aug 2017 | 09 Aug 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 09 Aug 2017 | 09 Aug 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Aug 2017 | 09 Aug 2017 | 001-13412 |
| 11-K | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 27 Jun 2017 | 31 Dec 2016 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Jun 2017 | 08 Jun 2017 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 04 May 2017 | 31 Mar 2017 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 03 May 2017 | 03 May 2017 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 27 Apr 2017 | 001-13412 | |
| DEF 14A | Open Document | Open Filing | DEF 14A | 27 Apr 2017 | 08 Jun 2017 | 001-13412 |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 10 Mar 2017 | 31 Dec 2016 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Mar 2017 | 01 Mar 2017 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Feb 2017 | 14 Nov 2016 | |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 14 Feb 2017 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 14 Feb 2017 | 005-48635 | ||
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2017 | 31 Dec 2016 | |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Feb 2017 | 31 Dec 2016 | |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G AMENDMENT NO. 3 | 03 Feb 2017 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13G | 10 Jan 2017 | 005-48635 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Dec 2016 | 14 Dec 2016 | 001-13412 |
| 424B5 | Open Document | Open Filing | 424B5 | 09 Dec 2016 | 333-207969 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Dec 2016 | 08 Dec 2016 | 001-13412 |
| S-3MEF | Open Document | Open Filing | S-3MEF | 08 Dec 2016 | 333-214994 | |
| 8-K | Open Document | Open Filing | 8-K | 05 Dec 2016 | 05 Dec 2016 | 001-13412 |
| 424B5 | Open Document | Open Filing | 424B5 | 05 Dec 2016 | 333-207969 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 18 Nov 2016 | 005-48635 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 18 Nov 2016 | 005-48635 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Nov 2016 | 02 Nov 2016 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 04 Nov 2016 | 30 Sep 2016 | 001-13412 |
| 11-K | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 26 Oct 2016 | 31 Dec 2015 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Oct 2016 | 07 Oct 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2016 | 23 Sep 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2016 | 14 Sep 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 24 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 24 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 24 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 24 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Sep 2016 | 24 Aug 2016 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 09 Sep 2016 | 05 Sep 2016 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 09 Sep 2016 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2016 | 06 Sep 2016 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Sep 2016 | 06 Sep 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 18 Jul 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 18 Jul 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 18 Jul 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 22 Aug 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2016 | 18 Jul 2016 | |
| 8-K | Open Document | Open Filing | 8-K | 30 Aug 2016 | 24 Aug 2016 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2016 | 25 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Aug 2016 | 22 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Aug 2016 | 19 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Aug 2016 | 17 Aug 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2016 | 10 Aug 2016 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2016 | 05 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2016 | 12 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2016 | 10 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2016 | 10 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2016 | 10 Aug 2016 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 10 Aug 2016 | 09 Aug 2016 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2016 | 09 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2016 | 09 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2016 | 05 Aug 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Aug 2016 | 05 Aug 2016 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 03 Aug 2016 | 30 Jun 2016 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Aug 2016 | 02 Aug 2016 | 001-13412 |
| DEF 14A | Open Document | Open Filing | DEF 14A | 21 Jul 2016 | 24 Aug 2016 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jul 2016 | 18 Jul 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jul 2016 | 18 Jul 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jul 2016 | 18 Jul 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jul 2016 | 18 Jul 2016 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 18 Jul 2016 | 18 Jul 2016 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 08 Jul 2016 | 005-48635 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2016 | 04 Feb 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Jun 2016 | 24 Jun 2016 | |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 18 May 2016 | 18 May 2016 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 06 May 2016 | 31 Mar 2016 | 001-13412 |
| 8-K | Open Document | Data | Open Filing | FORM 8-K | 04 May 2016 | 04 May 2016 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 14 Apr 2016 | 08 Apr 2016 | 001-13412 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Mar 2016 | 23 Mar 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Mar 2016 | 28 Mar 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2016 | 23 Mar 2016 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2016 | 14 Mar 2016 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 11 Mar 2016 | 31 Dec 2015 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 02 Mar 2016 | 02 Mar 2016 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 12 Feb 2016 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | SC 13G AMENDMENT NO. 2 | 12 Feb 2016 | 005-48635 | |
| SC 13G | Open Document | Open Filing | HUDSON TECHNOLOGIES, INC | 12 Feb 2016 | 005-48635 | |
| SC 13G | Open Document | Open Filing | SC 13G | 09 Feb 2016 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Feb 2016 | 04 Feb 2016 | |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 1 TO SCHEDULE 13G | 05 Feb 2016 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 04 Feb 2016 | 005-48635 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2015 | 29 Dec 2015 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Dec 2015 | 18 Dec 2015 | 001-13412 |
| EFFECT | Open Document | Open Filing | 18 Dec 2015 | 333-207969 | ||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2015 | 16 Dec 2015 | |
| S-3/A | Open Document | Open Filing | FORM S-3/A | 18 Dec 2015 | 333-207969 | |
| CORRESP | Open Document | Open Filing | 15 Dec 2015 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Dec 2015 | 09 Dec 2015 | |
| UPLOAD | Open Document | Open Filing | 10 Dec 2015 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Dec 2015 | 07 Dec 2015 | |
| S-3 | Open Document | Open Filing | S-3 | 12 Nov 2015 | 333-207969 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 10 Nov 2015 | 30 Sep 2015 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Sep 2015 | 15 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 09 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 09 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 09 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 09 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 09 Sep 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Sep 2015 | 08 Sep 2015 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 26 Aug 2015 | 26 Aug 2015 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 30 Jul 2015 | 30 Jun 2015 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 29 Jul 2015 | 29 Jul 2015 | 001-13412 |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 24 Jul 2015 | 31 Dec 2014 | 001-13412 |
| DEF 14A | Open Document | Open Filing | DEF 14A | 22 Jul 2015 | 26 Aug 2015 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Jul 2015 | 09 Jul 2015 | |
| PRE 14A | Open Document | Open Filing | FORM PRE 14A | 10 Jul 2015 | 10 Jul 2015 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 08 Jul 2015 | 07 Jul 2015 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 02 Jul 2015 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jun 2015 | 18 Jun 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2015 | 11 Jun 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2015 | 10 Jun 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2015 | 12 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2015 | 08 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2015 | 08 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2015 | 06 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 May 2015 | 06 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2015 | 04 May 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 May 2015 | 04 May 2015 | |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 06 May 2015 | 31 Mar 2015 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2015 | 04 May 2015 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 29 Apr 2015 | 29 Apr 2015 | 001-13412 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2015 | 12 Mar 2015 | |
| S-8 | Open Document | Open Filing | FORM S-8 | 24 Mar 2015 | 333-202955 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Mar 2015 | 12 Mar 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Mar 2015 | 12 Mar 2015 | |
| 10-K | Open Document | Data | Open Filing | 10-K | 16 Mar 2015 | 31 Dec 2014 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2015 | 12 Mar 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2015 | 10 Mar 2015 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 04 Mar 2015 | 04 Mar 2015 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G (AMENDMENT NO. 1) | 13 Feb 2015 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 13 Feb 2015 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 13 Feb 2015 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | 10 Feb 2015 | 005-48635 | ||
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 04 Feb 2015 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2015 | 22 Jan 2015 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 21 Jan 2015 | 16 Jan 2015 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2015 | 15 Jan 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Jan 2015 | 16 Jan 2015 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2015 | 31 Dec 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Dec 2014 | 29 Dec 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Dec 2014 | 30 Dec 2014 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2014 | 22 Dec 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2014 | 19 Dec 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Dec 2014 | 22 Dec 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Dec 2014 | 12 Dec 2014 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 29 Oct 2014 | 30 Sep 2014 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Oct 2014 | 08 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Oct 2014 | 01 Oct 2014 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2014 | 17 Sep 2014 | |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Sep 2014 | 17 Sep 2014 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 19 Sep 2014 | 17 Sep 2014 | 001-13412 |
| DEFA14A | Open Document | Open Filing | DEFA14A | 04 Sep 2014 | 001-13412 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 14 Aug 2014 | 31 Dec 2013 | 001-13412 |
| DEF 14A | Open Document | Open Filing | DEF 14A | 12 Aug 2014 | 17 Sep 2014 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 31 Jul 2014 | 30 Jun 2014 | 001-13412 |
| PRE 14A | Open Document | Open Filing | FORM PRE 14A | 31 Jul 2014 | 31 Jul 2014 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 30 Jul 2014 | 30 Jul 2014 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Jul 2014 | 02 Jul 2014 | 001-13412 |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 16 Jun 2014 | 005-48635 | |
| 424B5 | Open Document | Open Filing | FORM 424B5 | 06 Jun 2014 | 333-185490 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 06 Jun 2014 | 06 Jun 2014 | 001-13412 |
| 424B5 | Open Document | Open Filing | 424B5 | 05 Jun 2014 | 333-185490 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 29 Apr 2014 | 31 Mar 2014 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 23 Apr 2014 | 23 Apr 2014 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC 13G/A | 07 Mar 2014 | 005-48635 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 28 Feb 2014 | 31 Dec 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 26 Feb 2014 | 26 Feb 2014 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SC13G (AMENDMENT 3) | 14 Feb 2014 | 005-48635 | |
| SC 13G | Open Document | Open Filing | 14 Feb 2014 | 005-48635 | ||
| SC 13G | Open Document | Open Filing | SC 13G | 06 Feb 2014 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | HUDSON TECHNOLOGIES | 23 Jan 2014 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 31 Dec 2013 | 30 Dec 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2013 | 07 Aug 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2013 | 07 Aug 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Dec 2013 | 07 Aug 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Dec 2013 | 12 Dec 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Nov 2013 | 29 Oct 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Nov 2013 | 29 Oct 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Nov 2013 | 29 Oct 2013 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 08 Nov 2013 | 30 Sep 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 31 Oct 2013 | 25 Oct 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 30 Oct 2013 | 30 Oct 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 28 Aug 2013 | 27 Aug 2013 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | 10-Q | 06 Aug 2013 | 30 Jun 2013 | 001-13412 |
| DEFR14A | Open Document | Open Filing | DEFR14A | 01 Aug 2013 | 001-13412 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 31 Jul 2013 | 31 Dec 2012 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 30 Jul 2013 | 30 Jul 2013 | 001-13412 |
| DEF 14A | Open Document | Open Filing | DEF 14A | 29 Jul 2013 | 27 Aug 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | CURRENT REPORT | 05 Jul 2013 | 01 Jul 2013 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Jun 2013 | 19 Jun 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Jun 2013 | 07 Jun 2013 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 22 May 2013 | 20 May 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2013 | 10 May 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2013 | 07 May 2013 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 06 May 2013 | 31 Mar 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 01 May 2013 | 01 May 2013 | 001-13412 |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 29 Mar 2013 | 005-48635 | |
| SC 13D/A | Open Document | Open Filing | SC 13D/A | 29 Mar 2013 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Mar 2013 | 22 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Mar 2013 | 12 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2013 | 13 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2013 | 11 Mar 2013 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2013 | 07 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2013 | 07 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2013 | 06 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Mar 2013 | 07 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2013 | 04 Mar 2013 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2013 | 04 Mar 2013 | |
| 10-K | Open Document | Data | Open Filing | FORM 10-K | 05 Mar 2013 | 31 Dec 2012 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 28 Feb 2013 | 28 Feb 2013 | 001-13412 |
| 8-K | Open Document | Open Filing | 8-K | 20 Feb 2013 | 15 Feb 2013 | 001-13412 |
| EFFECT | Open Document | Open Filing | 22 Jan 2013 | 333-185490 | ||
| 424B3 | Open Document | Open Filing | PROSPECTUS | 22 Jan 2013 | 333-185490 | |
| CORRESP | Open Document | Open Filing | 17 Jan 2013 | |||
| S-3/A | Open Document | Open Filing | S-3/A | 11 Jan 2013 | 333-185490 | |
| SC 13G/A | Open Document | Open Filing | HUDSON TECHNOLOGIES | 09 Jan 2013 | 005-48635 | |
| UPLOAD | Open Document | Open Filing | 08 Jan 2013 | |||
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jan 2013 | 28 Dec 2012 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 27 Dec 2012 | 20 Dec 2012 | 001-13412 |
| S-3 | Open Document | Open Filing | FORM S-3 | 14 Dec 2012 | 333-185490 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 31 Oct 2012 | 30 Sep 2012 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 31 Oct 2012 | 31 Oct 2012 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Sep 2012 | 14 Sep 2012 | |
| SC 13D/A | Open Document | Open Filing | FORM SC 13D/A | 18 Sep 2012 | 005-48635 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2012 | 28 Aug 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Sep 2012 | 04 Sep 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Aug 2012 | 28 Aug 2012 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 07 Aug 2012 | 07 Aug 2012 | 001-13412 |
| EFFECT | Open Document | Open Filing | 01 Aug 2012 | 333-182526 | ||
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 01 Aug 2012 | 30 Jun 2012 | 001-13412 |
| 424B3 | Open Document | Open Filing | FORM 424B3 | 01 Aug 2012 | 333-182526 | |
| CORRESP | Open Document | Open Filing | 30 Jul 2012 | |||
| CORRESP | Open Document | Open Filing | 18 Jul 2012 | |||
| UPLOAD | Open Document | Open Filing | 16 Jul 2012 | |||
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 09 Jul 2012 | 31 Dec 2011 | 001-13412 |
| DEF 14A | Open Document | Open Filing | FORM DEF 14A | 06 Jul 2012 | 07 Aug 2012 | 001-13412 |
| S-3 | Open Document | Open Filing | HUDSON TECHNOLOGIES S3 | 03 Jul 2012 | 333-182526 | |
| 8-K | Open Document | Open Filing | FORM 8-K | 28 Jun 2012 | 22 Jun 2012 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Jun 2012 | 15 Jun 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2012 | 07 Jun 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2012 | 07 Jun 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 May 2012 | 10 May 2012 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 01 May 2012 | 31 Mar 2012 | 001-13412 |
| SC 13D | Open Document | Open Filing | SC 13D | 21 Mar 2012 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2012 | 08 Mar 2012 | |
| 10-K | Open Document | Data | Open Filing | ANNUAL REPORT | 05 Mar 2012 | 31 Dec 2011 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | AMENDMENT NO. 2 TO SCHEDULE 13G | 10 Feb 2012 | 005-48635 | |
| SC 13G/A | Open Document | Open Filing | HUDSON TECHNOLOGIES | 01 Feb 2012 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jan 2012 | 20 Jan 2012 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Dec 2011 | 29 Nov 2011 | |
| 10-Q | Open Document | Data | Open Filing | FORM 10-Q | 01 Nov 2011 | 30 Sep 2011 | 001-13412 |
| 8-K | Open Document | Open Filing | FORM 8-K | 25 Oct 2011 | 25 Oct 2011 | 001-13412 |
| SC 13G/A | Open Document | Open Filing | SCHEDULE 13G/A | 31 Aug 2011 | 005-48635 | |
| 8-K | Open Document | Open Filing | HUDSON TECHNOLOGIES 8K | 30 Aug 2011 | 30 Aug 2011 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2011 | 25 Aug 2011 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2011 | 25 Aug 2011 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 29 Aug 2011 | 25 Aug 2011 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2011 | 10 Aug 2011 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 03 Aug 2011 | 31 Dec 2010 | 001-13412 |
| 10-Q | Open Document | Data | Open Filing | QUARTERLY REPORT | 03 Aug 2011 | 30 Jun 2011 | 001-13412 |
| DEF 14A | Open Document | Open Filing | 02 Aug 2011 | 25 Aug 2011 | 001-13412 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 May 2011 | 20 May 2011 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2011 | 17 May 2011 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2011 | 13 May 2011 | |
| SC 13G | Open Document | Open Filing | SCHEDULE 13G | 12 May 2011 | 005-48635 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 May 2011 | 10 May 2011 | |
| 10-Q | Open Document | Open Filing | HUDSON TECHNOLOGIES 10Q Q1 2011 | 03 May 2011 | 31 Mar 2011 | 001-13412 |
| 8-K | Open Document | Open Filing | HUDSON TECHNOLOGIES 8-K | 22 Apr 2011 | 19 Apr 2011 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Mar 2011 | 09 Mar 2011 | |
| 10-K | Open Document | Open Filing | HUDSON TECHNOLOGIES 10K 2010 | 07 Mar 2011 | 31 Dec 2010 | 001-13412 |
| UPLOAD | Open Document | Open Filing | 09 Feb 2011 | |||
| CORRESP | Open Document | Open Filing | 01 Feb 2011 | |||
| SC 13G/A | Open Document | Open Filing | SC 13G/A FOR HDSN | 01 Feb 2011 | 005-48635 | |
| UPLOAD | Open Document | Open Filing | 21 Jan 2011 | |||
| CORRESP | Open Document | Open Filing | 07 Jan 2011 | |||
| UPLOAD | Open Document | Open Filing | 23 Dec 2010 | |||
| CORRESP | Open Document | Open Filing | 15 Dec 2010 | |||
| UPLOAD | Open Document | Open Filing | 03 Dec 2010 | |||
| 10-Q | Open Document | Open Filing | HUDSON TECHNOLOGIES 10Q Q3 2010 | 03 Nov 2010 | 30 Sep 2010 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Oct 2010 | 01 Oct 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2010 | 17 Aug 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2010 | 10 Aug 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Aug 2010 | 10 Aug 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Aug 2010 | 10 Aug 2010 | |
| 8-K | Open Document | Open Filing | HUDSON TECHNOLOGIES 8-K | 11 Aug 2010 | 10 Aug 2010 | 001-13412 |
| 10-Q | Open Document | Open Filing | HUDSON TECHNOLOGIES 10Q Q2 2010 | 03 Aug 2010 | 30 Jun 2010 | 001-13412 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2010 | 14 Jun 2010 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jul 2010 | 25 May 2010 | |
| ARS | Open Document | Open Filing | AUTO-GENERATED PAPER DOCUMENT | 15 Jul 2010 | 31 Dec 2009 | 001-13412 |
| DEF 14A | Open Document | Open Filing | 15 Jul 2010 | 10 Aug 2010 | 001-13412 | |
| 8-K | Open Document | Open Filing | 02 Jul 2010 | 01 Jul 2010 | 001-13412 | |
| 424B5 | Open Document | Open Filing | 02 Jul 2010 | 333-151973 | ||
| 8-K | Open Document | Open Filing | 01 Jul 2010 | 30 Jun 2010 | 001-13412 | |
| 10-K/A | Open Document | Open Filing | HUDSON TECHNOLOGIES 10-K/A | 18 Jun 2010 | 31 Dec 2009 | 001-13412 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 Jun 2010 | 14 Jun 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2010 | 11 Jun 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Jun 2010 | 02 Jun 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Jun 2010 | 27 May 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 May 2010 | 25 May 2010 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 May 2010 | 13 May 2010 | |
| 10-Q | Open Document | Open Filing | HUDSON TECHNOLOGIES 10Q | 04 May 2010 | 31 Mar 2010 | 001-13412 |
| 10-K | Open Document | Open Filing | HUDSON TECHNOLOGIES 10K 2009 | 01 Mar 2010 | 31 Dec 2009 | 001-13412 |
| S-8 | Open Document | Open Filing | S-8 | 02 Feb 2010 | 333-164650 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 20 Oct 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 20 Oct 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 20 Oct 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jan 2010 | 17 Dec 2009 | |
| SC 13G | Open Document | Open Filing | SC 13G FOR HDSN | 20 Jan 2010 | 005-48635 |