# Hudson Technologies Inc: filings

HDSN · Nasdaq · CIK 925528 · [Consumer discretionary](/sectors/consumer-discretionary.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/hdsn.md) · [Financials](/companies/hdsn/financials.md) · [Filings](/companies/hdsn/filings.md) · [Insiders](/companies/hdsn/insiders.md)

## Reports and events: 255 filings

Newest first, by EDGAR acceptance time (Eastern). Filter with ?form= one of: `periodic`, `8-K`, `10-K`, `10-Q`, `4`, `proxy`, `13dg`, `all`, or any form this company filed (4 357, 8-K 154, SC 13G/A 54, 10-Q 53, 4/A 29, SC 13G 25, 10-K 18, DEF 14A 18, 3 17, CORRESP 12, ARS 11, DEFA14A 11, UPLOAD 10, EFFECT 7, S-3 7, 424B5 6, 5 6, SC 13D/A 6, S-8 5, SCHEDULE 13G/A 5, NT 10-Q 4, S-3/A 4, SCHEDULE 13G 4, PRE 14A 3, 11-K 2, 424B3 2, 8-K/A 2, SC 13D 2, 10-K/A 1, 144 1, DEFR14A 1, NT 10-K 1, S-3MEF 1, SCHEDULE 13D 1).

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-08-07 | 16:05 ET | [10-Q](/filings/0001104659-26-092682.md) | Quarterly report, period 2026-06-30 | 0001104659-26-092682 |
| 2026-08-06 | 19:00 ET | [8-K](/filings/0001104659-26-091361.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-091361 |
| 2026-08-05 | 16:10 ET | [8-K](/filings/0001104659-26-091092.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-091092 |
| 2026-06-12 | 16:05 ET | [8-K](/filings/0001104659-26-073424.md) | 8.01 Other events | 0001104659-26-073424 |
| 2026-06-11 | 09:16 ET | [8-K](/filings/0001104659-26-072668.md) | 5.07 Shareholder vote results | 0001104659-26-072668 |
| 2026-05-28 | 16:15 ET | [8-K](/filings/0001104659-26-067511.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-067511 |
| 2026-05-20 | 16:05 ET | [8-K](/filings/0001104659-26-064492.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-26-064492 |
| 2026-05-18 | 08:35 ET | [8-K](/filings/0001104659-26-063042.md) | 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-063042 |
| 2026-05-11 | 16:05 ET | [10-Q](/filings/0001104659-26-058632.md) | Quarterly report, period 2026-03-31 | 0001104659-26-058632 |
| 2026-05-06 | 16:16 ET | [8-K](/filings/0001104659-26-056260.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-056260 |
| 2026-04-24 | 09:15 ET | [DEF 14A](/filings/0001104659-26-048223.md) | Proxy statement, period 2026-06-10 | 0001104659-26-048223 |
| 2026-04-13 | 09:00 ET | [8-K](/filings/0001104659-26-042384.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-26-042384 |
| 2026-03-18 | 16:10 ET | [8-K](/filings/0001104659-26-030906.md) | 5.02 Departure or appointment of officers or directors; 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-030906 |
| 2026-03-16 | 16:05 ET | [10-K](/filings/0001104659-26-028445.md) | Annual report, period 2025-12-31 | 0001104659-26-028445 |
| 2026-03-04 | 16:15 ET | [8-K](/filings/0001104659-26-023461.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-26-023461 |
| 2026-02-02 | 09:01 ET | [8-K](/filings/0001104659-26-009003.md) | 5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits | 0001104659-26-009003 |
| 2026-01-30 | 08:45 ET | [8-K](/filings/0001104659-26-008337.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-26-008337 |
| 2025-12-17 | 16:15 ET | [8-K](/filings/0001104659-25-122053.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-122053 |
| 2025-12-10 | 16:43 ET | [SCHEDULE 13D](/filings/0000921895-25-003302.md) | Ownership report, active investor | 0000921895-25-003302 |
| 2025-12-09 | 16:05 ET | [8-K](/filings/0001104659-25-119656.md) | 5.02 Departure or appointment of officers or directors | 0001104659-25-119656 |
| 2025-12-01 | 09:00 ET | [8-K](/filings/0001104659-25-117162.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-117162 |
| 2025-11-13 | 17:00 ET | [8-K](/filings/0001104659-25-111455.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-111455 |
| 2025-11-07 | 16:06 ET | [10-Q](/filings/0001104659-25-108471.md) | Quarterly report, period 2025-09-30 | 0001104659-25-108471 |
| 2025-11-05 | 16:16 ET | [8-K](/filings/0001104659-25-107007.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-107007 |
| 2025-11-03 | 16:16 ET | [8-K](/filings/0001104659-25-105559.md) | 2.02 Results of operations; 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-25-105559 |
| 2025-10-22 | 17:20 ET | [8-K](/filings/0001104659-25-101581.md) | 8.01 Other events; 9.01 Financial statements and exhibits | 0001104659-25-101581 |
| 2025-08-01 | 16:00 ET | [10-Q](/filings/0001410578-25-001554.md) | Quarterly report, period 2025-06-30 | 0001410578-25-001554 |
| 2025-07-30 | 16:10 ET | [8-K](/filings/0001104659-25-072160.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-072160 |
| 2025-06-23 | 16:06 ET | [8-K](/filings/0001104659-25-061667.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-25-061667 |
| 2025-06-12 | 16:18 ET | [8-K](/filings/0001104659-25-058886.md) | 5.07 Shareholder vote results | 0001104659-25-058886 |
| 2025-05-09 | 16:05 ET | [10-Q](/filings/0001410578-25-001163.md) | Quarterly report, period 2025-03-31 | 0001410578-25-001163 |
| 2025-05-07 | 16:10 ET | [8-K](/filings/0001104659-25-045533.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-045533 |
| 2025-04-25 | 09:00 ET | [DEF 14A](/filings/0001104659-25-039079.md) | Proxy statement, period 2025-06-11 | 0001104659-25-039079 |
| 2025-03-12 | 17:07 ET | [10-K](/filings/0001410578-25-000323.md) | Annual report, period 2024-12-31 | 0001410578-25-000323 |
| 2025-03-06 | 16:15 ET | [8-K](/filings/0001104659-25-021376.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-25-021376 |
| 2024-11-08 | 16:15 ET | [10-Q](/filings/0001410578-24-001834.md) | Quarterly report, period 2024-09-30 | 0001410578-24-001834 |
| 2024-11-04 | 16:15 ET | [8-K](/filings/0001104659-24-113905.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-113905 |
| 2024-10-25 | 09:00 ET | [8-K](/filings/0001104659-24-111320.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-111320 |
| 2024-08-09 | 15:19 ET | [10-Q](/filings/0001410578-24-001274.md) | Quarterly report, period 2024-06-30 | 0001410578-24-001274 |
| 2024-08-06 | 16:15 ET | [8-K](/filings/0001104659-24-086280.md) | 2.02 Results of operations; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-086280 |
| 2024-07-30 | 16:45 ET | [8-K](/filings/0001104659-24-084005.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0001104659-24-084005 |
| 2024-06-13 | 09:00 ET | [8-K](/filings/0001104659-24-071084.md) | 5.07 Shareholder vote results | 0001104659-24-071084 |
| 2024-06-07 | 07:30 ET | [8-K](/filings/0001104659-24-069302.md) | 1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits | 0001104659-24-069302 |
| 2024-05-08 | 17:20 ET | [10-Q](/filings/0001410578-24-000637.md) | Quarterly report, period 2024-03-31 | 0001410578-24-000637 |
| 2024-05-01 | 16:15 ET | [8-K](/filings/0001104659-24-055740.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-055740 |
| 2024-04-25 | 16:05 ET | [DEF 14A](/filings/0001104659-24-051957.md) | Proxy statement, period 2024-06-12 | 0001104659-24-051957 |
| 2024-03-14 | 17:00 ET | [10-K](/filings/0001410578-24-000199.md) | Annual report, period 2023-12-31 | 0001410578-24-000199 |
| 2024-03-06 | 16:16 ET | [8-K](/filings/0001104659-24-031481.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-24-031481 |
| 2023-11-07 | 16:11 ET | [10-Q](/filings/0001410578-23-002221.md) | Quarterly report, period 2023-09-30 | 0001410578-23-002221 |
| 2023-11-01 | 16:15 ET | [8-K](/filings/0001104659-23-113391.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0001104659-23-113391 |

Page 1 of 6. [Older](/companies/hdsn/filings.md?page=2)
Source: SEC EDGAR, the company’s filing index. Last ingested by Listed: Oct 24, 2026, 15:00 ET. No prices; not investment advice.