HUDSON TECHNOLOGIES INC /NY - HDSN
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 36
Latest filed: Jul 14, 2026
| Form | Count |
|---|---|
| 4 | 18 |
| 8-K | 11 |
| SCHEDULE 13G/A | 4 |
| SCHEDULE 13G | 2 |
| 4/A | 1 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Jul 14, 2026 | SCHEDULE 13G/A | — | 0000354204-26-000835 | View |
| Jul 08, 2026 | 4 | Jul 06, 2026 | 0000921895-26-001775 | View |
| Jul 02, 2026 | SCHEDULE 13G/A | — | 0000921895-26-001752 | View |
| Jul 02, 2026 | 4 | Jun 30, 2026 | 0000921895-26-001754 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000059 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000060 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000061 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000062 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000063 | View |
| Jun 22, 2026 | 4 | Jun 17, 2026 | 0000925528-26-000064 | View |
| Jun 12, 2026 | 8-K | Jun 11, 2026 | 0001104659-26-073424 | View |
| Jun 11, 2026 | 8-K | Jun 10, 2026 | 0001104659-26-072668 | View |
| Jun 05, 2026 | SCHEDULE 13G | — | 0000921895-26-001565 | View |
| May 28, 2026 | 8-K | May 27, 2026 | 0001104659-26-067511 | View |
| May 21, 2026 | 4/A | May 13, 2026 | 0000925528-26-000051 | View |
| May 21, 2026 | 4 | May 19, 2026 | 0000925528-26-000049 | View |
| May 20, 2026 | 8-K | May 19, 2026 | 0001104659-26-064492 | View |
| May 18, 2026 | 8-K | May 18, 2026 | 0001104659-26-063042 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0000925528-26-000045 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0000925528-26-000047 | View |
| May 15, 2026 | 4 | May 13, 2026 | 0000925528-26-000034 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0000925528-26-000035 | View |
| May 15, 2026 | 4 | May 13, 2026 | 0000925528-26-000037 | View |
| May 15, 2026 | 4 | May 13, 2026 | 0000925528-26-000038 | View |
| May 15, 2026 | 4 | May 14, 2026 | 0000925528-26-000040 | View |
| May 06, 2026 | 8-K | May 06, 2026 | 0001104659-26-056260 | View |
| Apr 14, 2026 | 4 | Apr 10, 2026 | 0000925528-26-000016 | View |
| Apr 14, 2026 | 4 | Apr 10, 2026 | 0000925528-26-000018 | View |
| Apr 13, 2026 | 8-K | Apr 10, 2026 | 0001104659-26-042384 | View |
| Apr 09, 2026 | SCHEDULE 13G | — | 0000354204-26-000561 | View |
| Mar 27, 2026 | SCHEDULE 13G/A | — | 0000102909-26-001564 | View |
| Mar 18, 2026 | 8-K | Mar 13, 2026 | 0001104659-26-030906 | View |
| Mar 04, 2026 | 8-K | Mar 04, 2026 | 0001104659-26-023461 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0002073679-26-000033 | View |
| Feb 02, 2026 | 8-K | Jan 30, 2026 | 0001104659-26-009003 | View |
| Jan 30, 2026 | 8-K | Jan 30, 2026 | 0001104659-26-008337 | View |