| 2014-06-27 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 249,961 0.1733% | $34.46 | $8.61M | -38.32% | |
| 2014-06-26 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 150,039 0.1048% | $34.53 | $5.18M | -37.98% | |
| 2014-03-07 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 120,000 0.0839% | $29.22 | $3.51M | +7.1% | |
| 2013-02-21 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 380,000 0.2626% | $23.06 | $8.76M | -0.23% | |
| 2008-05-14 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 272,061 0.1784% | $32.08 | $8.73M | -57.87% | |
| 2008-05-13 | Sale | Patterson-UTI Energy, Inc. PTEN | director | 247,939 0.1608% | $32.05 | $7.95M | -58.3% | |
| 2005-06-16 | Sale | Patterson-UTI Energy, Inc. PTEN | Chief Executive Officer | 580,000 0.3408% | $28.83 | $16.72M | +11.92% | |
| 2004-10-05 | Sale | Patterson-UTI Energy, Inc. PTEN | Chief Executive Officer | 400,000 0.2421% | $19.42 | $7.77M | +29.84% |