| 2005-09-12 | Sale | Hudson Technologies, Inc. HDSN | director | 80,000 0.2955% | $1.93 | $154,174 | -21.08% | |
| 2004-06-02 | Hudson Technologies, Inc. HDSN | director | 200 0.0008% | $1.05 | $210 | -9% | ||
| 2004-06-01 | Hudson Technologies, Inc. HDSN | director | 1,200 0.0047% | $1.05 | $1,260 | -13.33% | ||
| 2004-05-27 | Hudson Technologies, Inc. HDSN | director | 600 0.0024% | $1.05 | $630 | -13.33% | ||
| 2003-12-17 | Hudson Technologies, Inc. HDSN | director | 40,000 0.8965% | $1.10 | $44,000 | +7.37% |