| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| CLH | EVP Customer Service (CHESI) | Sep 06, 2018 | Sale | $70.62 | 424 | 29,943 | 22,914 | Sep 07, 2018, 12:23 PM |
| CLH | EVP Customer Service (CHESI) | Sep 04, 2018 | Option Exercise | $68.59 | 176 | 12,072 | 23,338 | Sep 05, 2018, 11:17 AM |
| WM | Sr. VP Customer Experience | Aug 23, 2012 | Sale | $34.34 | 1,351 | 46,395 | 240 | Aug 24, 2012, 03:13 PM |
| WM | Sr. VP Customer Experience | Apr 18, 2011 | Buy | $37.53 | 100 | 3,753 | 100 | Nov 21, 2011, 02:52 PM |
| WM | Sr. VP Customer Experience | Aug 03, 2011 | Buy | $30.46 | 140 | 4,264 | 140 | Aug 05, 2011, 12:30 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| CLH | EVP Customer Service (CHESI) | Sep 06, 2018 | Sale | 29,943 |
| CLH | EVP Customer Service (CHESI) | Sep 04, 2018 | Option Exercise | 12,072 |
| WM | Sr. VP Customer Experience | Aug 23, 2012 | Sale | 46,395 |
| WM | Sr. VP Customer Experience | Apr 18, 2011 | Buy | 3,753 |
| WM | Sr. VP Customer Experience | Aug 03, 2011 | Buy | 4,264 |