| HDSN 0000925528 | |||
|---|---|---|---|
| Filing Date | Form Type | Description | Document |
| 2020-09-16 | 8-K | FORM 8-K | View Document |
| 2020-09-16 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-09-16 | 3 | PRIMARY DOCUMENT | View Document |
| 2020-09-16 | 3 | PRIMARY DOCUMENT | View Document |
| 2020-09-01 | 3 | PRIMARY DOCUMENT | View Document |
| 2020-09-01 | 8-K | FORM 8-K | View Document |
| 2020-08-11 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-08-11 | 8-K | FORM 8-K | View Document |
| 2020-08-05 | 10-Q | FORM 10-Q | View Document |
| 2020-08-05 | 8-K | FORM 8-K | View Document |
| 2020-08-03 | 8-K | FORM 8-K | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2020-07-20 | 8-K | FORM 8-K | View Document |
| 2020-06-30 | S-8 | S-8 | View Document |
| 2020-06-24 | 8-K | FORM 8-K | View Document |
| 2020-06-12 | 8-K | FORM 8-K | View Document |
| 2020-05-15 | 10-Q | FORM 10-Q | View Document |
| 2020-05-06 | 8-K | FORM 8-K | View Document |
| 2020-04-28 | DEFA14A | DEFA14A | View Document |
| 2020-04-28 | DEF 14A | DEF 14A | View Document |
| 2020-04-20 | 8-K | FORM 8-K | View Document |
| 2020-04-09 | PRE 14A | PRE 14A | View Document |
| 2020-03-13 | 10-K | FORM 10-K | View Document |
| 2020-03-04 | 8-K | 8-K | View Document |
| 2020-02-14 | SC 13G/A | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | View Document |
| 2020-02-12 | SC 13G/A | PEKIN SINGER STRAUSS ASSET MANAGEMENT, INC | View Document |
| 2020-02-12 | SC 13G/A | SC 13G/A | View Document |
| 2020-02-12 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2020-02-11 | SC 13G/A | HDSN201913G | View Document |
| 2020-02-07 | SC 13G/A | View Document | |
| 2020-01-31 | SC 13G/A | AMENDMENT NO. 2 TO SCHEDULE 13G | View Document |
| 2020-01-30 | 8-K | FORM 8-K | View Document |
| 2020-01-07 | 4/A | PRIMARY DOCUMENT | View Document |
| 2020-01-06 | 3 | PRIMARY DOCUMENT | View Document |
| 2020-01-06 | 3 | PRIMARY DOCUMENT | View Document |
| 2020-01-03 | 8-K | FORM 8-K | View Document |
| 2020-01-02 | 3 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-23 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-12-20 | 8-K | FORM 8-K | View Document |
| 2019-11-15 | 10-Q | FORM 10-Q | View Document |
| 2019-11-14 | 8-K | 8-K | View Document |
| 2019-11-12 | 8-K | FORM 8-K | View Document |
| 2019-11-12 | NT 10-Q | NT 10-Q | View Document |
| 2019-09-23 | 8-K | FORM 8-K | View Document |
| 2019-08-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-08-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-08-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-08-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-08-29 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-08-14 | 10-Q | FORM 10-Q | View Document |
| 2019-08-14 | 8-K | FORM 8-K | View Document |
| 2019-08-09 | NT 10-Q | NT 10-Q | View Document |
| 2019-08-02 | 8-K | FORM 8-K | View Document |
| 2019-07-29 | SC 13G | HUDSON TECHNOLOGIES | View Document |
| 2019-07-10 | SC 13G/A | View Document | |
| 2019-06-11 | 8-K | FORM 8-K | View Document |
| 2019-05-28 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-15 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-13 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-09 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-03 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-05-02 | 10-Q | FORM 10-Q | View Document |
| 2019-05-01 | 8-K | FORM 8-K | View Document |
| 2019-04-26 | DEFA14A | DEFA14A | View Document |
| 2019-04-26 | DEF 14A | DEFINITIVE PROXY STATEMENT | View Document |
| 2019-03-15 | 10-K | FORM 10-K | View Document |
| 2019-03-06 | 8-K | FORM 8-K | View Document |
| 2019-02-22 | 4 | PRIMARY DOCUMENT | View Document |
| 2019-02-14 | SC 13G/A | SCHEDULE 13G HOLDINGS REPORT AMENDMENT | View Document |
| 2019-02-13 | SC 13G/A | View Document | |
| 2019-02-13 | SC 13G | View Document | |
| 2019-02-12 | SC 13G | SC 13G | View Document |
| 2019-02-11 | SC 13G/A | PEKIN SINGER STRAUSS ASSET MANAGEMENT, INC | View Document |
| 2019-02-08 | SC 13G/A | SCHEDULE 13G/A | View Document |
| 2019-01-31 | SC 13G/A | 13GHUDSON | View Document |
| 2019-01-24 | SC 13G/A | SC 13G/A | View Document |
| 2019-01-18 | SC 13G/A | AMENDMENT NO. 1 TO SCHEDULE 13G | View Document |
| 2019-01-15 | 5 | PRIMARY DOCUMENT | View Document |
| 2018-12-21 | S-8 | FORM S-8 | View Document |
| 2018-12-12 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-06 | 8-K | FORM 8-K | View Document |
| 2018-12-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-04 | 4 | PRIMARY DOCUMENT | View Document |
| 2018-12-04 | 4 | PRIMARY DOCUMENT | View Document |
