| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| AVTX | Chief Accounting Officer | Dec 10, 2021 | Buy | $1.57 | 955 | 1,499 | 9,004 | Dec 14, 2021, 05:17 PM |
| CERC | Interim CFO | Dec 10, 2020 | Buy | $2.28 | 5,095 | 11,606 | 8,049 | Dec 14, 2020, 04:12 PM |
| CERC | Interim CFO | Jun 10, 2020 | Buy | $2.28 | 2,954 | 6,729 | 2,954 | Jun 11, 2020, 09:08 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| AVTX | Chief Accounting Officer | Dec 10, 2021 | Buy | 1,499 |
| CERC | Interim CFO | Dec 10, 2020 | Buy | 11,606 |
| CERC | Interim CFO | Jun 10, 2020 | Buy | 6,729 |