| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| XON | Chief Business Officer | Jan 03, 2019 | Sale | $7.07 | 4,058 | 28,692 | 5,708 | Jan 04, 2019, 06:45 PM |
| XON | SVP-Corporate Development | Aug 11, 2017 | Buy | $18.75 | 3,369 | 63,169 | 7,369 | Aug 14, 2017, 08:33 AM |
| XON | SVP-Corporate Development | Aug 29, 2016 | Buy | $26.12 | 4,000 | 104,484 | 4,000 | Aug 31, 2016, 11:07 AM |
| Symbol | Relationship | Date | Transaction | Value($) |
| XON | Chief Business Officer | Jan 03, 2019 | Sale | 28,692 |
| XON | SVP-Corporate Development | Aug 11, 2017 | Buy | 63,169 |
| XON | SVP-Corporate Development | Aug 29, 2016 | Buy | 104,484 |