| 2018-05-23 | Hudson Technologies, Inc. HDSN | Chairman, CEO | 20,000 0.0459% | $2.11 | $42,263 | -29.49% | ||
| 2018-03-15 | Hudson Technologies, Inc. HDSN | Chairman, CEO | 5,000 0.0119% | $5.51 | $27,550 | -68.43% | ||
| 2016-08-09 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 366,275 1.0864% | $4.87 | $1.78M | +50.93% | |
| 2016-08-08 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 173,200 0.5132% | $4.78 | $827,550 | +53.68% | |
| 2016-08-05 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 121,050 0.3663% | $4.88 | $590,603 | +53.15% | |
| 2015-05-07 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 200,000 0.6316% | $4.08 | $816,000 | -19.14% | |
| 2015-05-06 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 290,600 0.9319% | $4.55 | $1.32M | -26.38% | |
| 2013-03-14 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 143,254 0.5941% | $4.41 | $631,750 | -28.6% | |
| 2013-03-12 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off | 600,000 2.5069% | $4.25 | $2.55M | -25.12% | |
| 2012-09-14 | Sale | Hudson Technologies, Inc. HDSN | Chairman, Chief Executive Off. | 1.22M 5.9935% | $4.00 | $4.89M | +6.74% | |
| 2008-10-30 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 1.9M 23.3496% | $2.60 | $4.94M | +21.56% | |
| 2008-09-25 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 800,000 6.7398% | $2.60 | $2.08M | -15.41% | |
| 2008-07-23 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 12,790 0.0655% | $2.60 | $33,286 | -45.8% | |
| 2008-07-22 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 2,600 0.0134% | $2.60 | $6,760 | -45.38% | |
| 2008-07-17 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 68,300 0.3548% | $2.61 | $178,346 | -44.79% | |
| 2008-07-16 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 8,800 0.0459% | $2.60 | $22,880 | -43.97% | |
| 2008-07-15 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 125,600 0.6705% | $2.61 | $327,959 | -42.46% | |
| 2008-06-30 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 34,300 0.1823% | $2.60 | $89,184 | -41.7% | |
| 2008-06-03 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 442 0.0024% | $3.33 | $1,472 | -51.77% | |
| 2008-05-30 | Sale | Hudson Technologies, Inc. HDSN | Chief Executive Officer | 22,600 0.1169% | $3.30 | $74,580 | -54.55% |