| 2021-02-08 | Sale | Tetra Tech, Inc. TTEK | SVP, R&S Infrastructure | 3,273 0.006% | $136.04 | $445,264 | +1.9% | |
| 2020-11-23 | Sale | Tetra Tech, Inc. TTEK | SVP, R&S Infrastructure | 3,089 0.0058% | $123.34 | $380,989 | +9% | |
| 2020-11-17 | Sale | Tetra Tech, Inc. TTEK | SVP, R & S Infrastructure | 1,395 0.0026% | $125.48 | $175,052 | +5.89% | |
| 2020-02-04 | Sale | Tetra Tech, Inc. TTEK | SVP, U.S. Infrastructure | 244 0.0004% | $89.33 | $21,797 | +4.73% | |
| 2019-11-25 | Sale | Tetra Tech, Inc. TTEK | SVP, U.S. Infrastructure | 4,820 0.0089% | $87.27 | $420,640 | +0.38% | |
| 2019-06-14 | Sale | Tetra Tech, Inc. TTEK | SVP, U.S. Infrastructure | 2,790 0.0052% | $72.31 | $201,734 | +17.49% | |
| 2019-05-16 | Sale | Tetra Tech, Inc. TTEK | SVP, U.S. Infrastructure | 1,742 0.0032% | $67.37 | $117,363 | +23.61% | |
| 2018-02-23 | Sale | Tetra Tech, Inc. TTEK | SVP | 1,320 0.0024% | $50.44 | $66,578 | +14.54% |