| 2016-05-19 | Northwest Pipe Company NWPX | director | 2,000 0.0226% | $9.50 | $18,994 | +57.53% | ||
| 2016-05-12 | Northwest Pipe Company NWPX | director | 2,000 0.021% | $9.31 | $18,619 | +46.32% | ||
| 2016-05-11 | Northwest Pipe Company NWPX | director | 4,000 0.0419% | $9.61 | $38,446 | +40.54% | ||
| 2016-05-09 | Northwest Pipe Company NWPX | director | 3,000 0.0309% | $9.48 | $28,444 | +39.11% | ||
| 2015-11-10 | Northwest Pipe Company NWPX | director | 4,000 0.0428% | $13.02 | $52,080 | -15.89% | ||
| 2015-11-09 | Northwest Pipe Company NWPX | director | 7,000 0.0755% | $13.65 | $95,550 | -19.2% | ||
| 2015-05-26 | Northwest Pipe Company NWPX | director | 4,000 0.0417% | $20.65 | $82,600 | -40.71% | ||
| 2015-05-07 | Northwest Pipe Company NWPX | director | 2,000 0.0208% | $22.78 | $45,560 | -44.08% |