| 2022-12-16 | Sale | U.S. Silica Holdings, Inc. SLCA | director | 16,089 0.021% | $11.43 | $183,897 | +6.21% | |
| 2018-04-24 | Werner Enterprises, Inc. WERN | director | 14,000 0.0203% | $36.19 | $506,660 | +1.2% | ||
| 2018-02-26 | U.S. Silica Holdings, Inc. SLCA | director | 10,000 0.0122% | $25.96 | $259,600 | -16.11% | ||
| 2016-11-18 | Sale | Union Pacific Corporation UNP | EVP CHIEF ADMIN OFFICER & CORP | 5,680 0.0007% | $98.98 | $562,206 | +9.39% | |
| 2016-06-03 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 5,000 0.0006% | $85.46 | $427,300 | +19.63% | |
| 2015-05-22 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 31,000 0.0036% | $104.39 | $3.24M | -16.77% | |
| 2014-08-29 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 14,346 0.0016% | $105.04 | $1.51M | +3.47% | |
| 2014-03-11 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 3,055 0.0007% | $186.50 | $569,758 | +14.72% | |
| 2013-07-22 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 1,515 0.0003% | $165.00 | $249,975 | +5.33% | |
| 2013-06-07 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 1,613 0.0003% | $156.09 | $251,773 | +3.31% | |
| 2013-06-06 | Sale | Union Pacific Corporation UNP | EVP & CORPORATE SECRETARY | 8,361 0.0018% | $152.53 | $1.28M | +5.74% |