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| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 03/31/2020 | HUDSON TECHNOLOGIES INC /NY | HDSN | 0 | -13,950 | 0 | -14,000 | |
| 12/31/2019 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 0 | 14,000 | 4,000 | $1.00 |
| 09/30/2019 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 0 | 10,000 | -2,000 | $0.72 |
| 06/30/2019 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 0 | 12,000 | -15,000 | $0.86 |
| 03/31/2019 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 0 | 27,000 | 15,000 | $1.94 |
| 12/31/2018 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 0 | 12,000 | -6,000 | $0.86 |
| 09/30/2018 | HUDSON TECHNOLOGIES INC /NY | HDSN | 13,950 | 13,950 | 18,000 | 18,000 | $1.29 |
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