| 2023-02-08 | Sale | Tetra Tech, Inc. TTEK | director | 1,800 0.0034% | $151.09 | $271,962 | +5.44% | |
| 2021-06-02 | Sale | Tetra Tech, Inc. TTEK | director | 8,524 0.0157% | $119.05 | $1.01M | +25.28% | |
| 2020-11-16 | Sale | Tetra Tech, Inc. TTEK | director | 4,076 0.0074% | $120.46 | $491,001 | +7.16% | |
| 2019-11-25 | Sale | Tetra Tech, Inc. TTEK | director | 5,392 0.01% | $88.16 | $475,343 | +0.38% | |
| 2018-12-11 | Sale | Tetra Tech, Inc. TTEK | director | 8,646 0.0155% | $54.37 | $470,083 | +33.98% | |
| 2014-08-04 | Tetra Tech, Inc. TTEK | director | 3,000 0.0046% | $24.63 | $73,893 | +1.48% | ||
| 2013-12-09 | Tetra Tech, Inc. TTEK | director | 3,000 0.0047% | $27.83 | $83,490 | -1.3% |