| 2004-08-13 | Sale | Tetra Tech, Inc. TTEK | VICE PRESIDENT | 1,600 0.0028% | $16.22 | $25,948 | -11.29% | |
| 2004-06-02 | Sale | Tetra Tech, Inc. TTEK | VICE PRESIDENT | 2,000 0.0036% | $17.48 | $34,960 | -12.51% | |
| 2004-02-03 | Sale | Tetra Tech, Inc. TTEK | VICE PRESIDENT | 2,000 0.0036% | $22.04 | $44,080 | -25.91% | |
| 2003-08-26 | Sale | Tetra Tech, Inc. TTEK | VICE PRESIDENT | 6,000 0.0112% | $17.75 | $106,500 | +15.45% | |
| 2003-05-06 | Sale | Tetra Tech, Inc. TTEK | VICE PRESIDENT | 17,264 – | $0 | $0 | +27.74% |