| Filed On | Filing |
|---|---|
| 03 Feb 2023 | SC 13G |
| 22 Mar 2022 | SC 13G |
| 14 Feb 2022 | HDSN2213G |
| 01 Jul 2021 | SCHEDULE 13G |
| 24 May 2021 | SC 13G |
| 04 May 2021 | SC 13G |
| 12 Feb 2021 | HDSN1362020 |
| 29 Jul 2019 | HUDSON TECHNOLOGIES |
| 13 Feb 2019 | SC 13G |
| 12 Feb 2019 | SC 13G |
| 09 Aug 2018 | SCHEDULE 13G |
| 13 Feb 2018 | SC 13G |
| 09 Feb 2018 | SCHEDULE 13G |
| 09 Feb 2018 | 13G |
| 08 Feb 2018 | SC 13G |
| 01 Feb 2018 | SC 13G |
| 25 Jan 2018 | HDSN 13G |
| 12 Feb 2016 | HUDSON TECHNOLOGIES, INC |
| 09 Feb 2016 | SC 13G |
| 13 Feb 2015 | SCHEDULE 13G |
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