| 2011-06-28 | Sale | Tetra Tech, Inc. TTEK | 162,500 0.2602% | $22.52 | $3.66M | -0.62% | ||
| 2009-08-04 | Sale | Tetra Tech, Inc. TTEK | CHIEF FINANCIAL OFFICER | 85,000 0.1374% | $29.76 | $2.53M | -19.49% | |
| 2009-05-22 | Sale | Tetra Tech, Inc. TTEK | CHIEF FINANCIAL OFFICER | 7,712 0.0129% | $24.50 | $188,944 | +9.14% | |
| 2008-08-06 | Sale | Tetra Tech, Inc. TTEK | CHIEF FINANCIAL OFFICER | 48,324 0.0803% | $29.00 | $1.4M | -20.31% | |
| 2008-05-06 | Sale | Tetra Tech, Inc. TTEK | CHIEF FINANCIAL OFFICER | 40,200 0.0681% | $23.11 | $929,115 | -2.35% |