| 2008-05-02 | Sale | Northwest Pipe Company NWPX | director | 4,000 0.0274% | $27.66 | $110,628 | -10.89% | |
| 2008-04-30 | Sale | Northwest Pipe Company NWPX | director | 4,000 0.0275% | $26.79 | $107,150 | -5.66% | |
| 2008-03-14 | Sale | Northwest Pipe Company NWPX | director | 8,000 0.0601% | $26.50 | $212,000 | +8.19% | |
| 2008-03-11 | Sale | Northwest Pipe Company NWPX | director | 8,000 0.0861% | $38.00 | $304,000 | +8.12% | |
| 2007-12-07 | Sale | Northwest Pipe Company NWPX | director | 4,000 0.0352% | $30.26 | $121,022 | +10.34% | |
| 2007-08-17 | Sale | Northwest Pipe Company NWPX | director | 4,000 0.0458% | $36.12 | $144,480 | +12.39% | |
| 2007-08-16 | Sale | Northwest Pipe Company NWPX | director | 4,016 0.0448% | $35.00 | $140,560 | +12.91% | |
| 2007-05-04 | Sale | Northwest Pipe Company NWPX | director | 4,550 0.0513% | $36.19 | $164,651 | +3.15% | |
| 2005-05-19 | Sale | Northwest Pipe Company NWPX | director | 2,000 0.0293% | $21.42 | $42,840 | +24.57% |