| 2021-11-24 | Sale | Energy Recovery, Inc. ERII | director | 20,000 0.035% | $22.46 | $449,260 | -9.23% | |
| 2021-09-13 | Sale | Energy Recovery, Inc. ERII | director | 5,595 0.0099% | $21.59 | $120,822 | -7.03% | |
| 2020-12-09 | Sale | Energy Recovery, Inc. ERII | director | 16,726 0.0294% | $11.90 | $199,063 | +60.05% | |
| 2016-04-25 | Sale | Schlumberger Limited SLB | President Production Group | 3,500 0.0003% | $78.92 | $276,220 | +2.61% | |
| 2016-03-03 | Sale | Schlumberger Limited SLB | President Production Group | 197 <0.0001% | $74.09 | $14,596 | +7.41% | |
| 2016-02-29 | Sale | Schlumberger Limited SLB | President Production Group | 1,000 <0.0001% | $72.54 | $72,544 | +11.96% | |
| 2015-04-20 | Sale | Schlumberger Limited SLB | President Production Group | 5,000 0.0004% | $93.43 | $467,150 | -16.52% | |
| 2014-04-24 | Sale | Schlumberger Limited SLB | President Production Group | 10,000 0.0008% | $102.31 | $1.02M | -3.58% | |
| 2013-10-22 | Sale | Schlumberger Limited SLB | President Production Group | 13,200 0.001% | $94.00 | $1.24M | +5.07% | |
| 2013-08-07 | Sale | Schlumberger Limited SLB | President Production Group | 4,980 0.0004% | $81.07 | $403,740 | +14.82% |