| 2023-02-06 | Sale | Caterpillar Inc. CAT | director | 6,070 0.0012% | $251.22 | $1.52M | +0.26% | |
| 2017-10-30 | Sale | Caterpillar Inc. CAT | director | 7,626 0.0013% | $137.09 | $1.05M | +8.16% | |
| 2017-02-14 | Sale | Caterpillar Inc. CAT | director | 7,768 0.0013% | $97.90 | $760,487 | +18.4% | |
| 2016-11-10 | Sale | Caterpillar Inc. CAT | director | 1,900 0.0003% | $93.52 | $177,688 | +11.38% | |
| 2015-05-08 | Sale | Caterpillar Inc. CAT | director | 1,614 0.0003% | $87.09 | $140,571 | -13.93% | |
| 2010-05-04 | Mistras Group, Inc. MG | 8,000 0.0369% | $12.00 | $96,000 | -0.67% | |||
| 2009-10-14 | Sale | Mistras Group, Inc. MG | 2.61M 10.8908% | $11.63 | $30.33M | -13.64% | ||
| 2009-02-06 | Caterpillar Inc. CAT | director | 6,074 0.001% | $33.00 | $200,442 | +39.02% | ||
| 2004-11-30 | Sale | TTM Technologies, Inc. TTMI | 10 percent owner | 2.4M 5.612% | $9.95 | $23.93M | -18.3% | |
| 2003-12-02 | Sale | TTM Technologies, Inc. TTMI | 10 percent owner | 4.89M 11.6687% | $16.75 | $81.87M | -34% | |
| 2003-09-29 | Sale | TTM Technologies, Inc. TTMI | 10 percent owner | 3.22M 6.8112% | $12.00 | $38.69M | -5.04% | |
| 2003-09-23 | Sale | TTM Technologies, Inc. TTMI | 10 percent owner | 21.27M 45.1282% | $12.00 | $255.3M | -0.96% |