| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| AVTX | Chief Commercial Officer | Dec 10, 2021 | Buy | $1.57 | 1,093 | 1,716 | 36,766 | Dec 14, 2021, 05:16 PM |
| CERC | Chief Commercial Officer | Jun 10, 2021 | Buy | $2.28 | 7,493 | 17,084 | 35,673 | Jun 14, 2021, 05:02 PM |
| CERC | Chief Commercial Officer | Dec 10, 2020 | Buy | $2.28 | 171 | 390 | 28,180 | Dec 14, 2020, 04:17 PM |
| CERC | Chief Commercial Officer | Jun 10, 2020 | Buy | $2.28 | 6,391 | 14,559 | 28,009 | Jun 11, 2020, 09:42 PM |
| CERC | Chief Commercial Officer | Jun 09, 2020 | Buy | $2.50 | 10,000 | 25,000 | 21,618 | Jun 11, 2020, 09:42 PM |
| CERC | Chief Commercial Officer | Dec 10, 2019 | Buy | $2.85 | 3,064 | 8,725 | 11,618 | Dec 11, 2019, 04:28 PM |
| CERC | Exec. VP, Mktg & External Comm | Jun 10, 2019 | Buy | $2.85 | 4,398 | 12,523 | 8,554 | Jun 11, 2019, 07:51 PM |
| CERC | Exec. VP, Mktg & External Comm | Dec 10, 2018 | Buy | $2.85 | 4,156 | 11,834 | 4,156 | Dec 11, 2018, 05:31 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| AVTX | Chief Commercial Officer | Dec 10, 2021 | Buy | 1,716 |
| CERC | Chief Commercial Officer | Jun 10, 2021 | Buy | 17,084 |
| CERC | Chief Commercial Officer | Dec 10, 2020 | Buy | 390 |
| CERC | Chief Commercial Officer | Jun 10, 2020 | Buy | 14,559 |
| CERC | Chief Commercial Officer | Jun 09, 2020 | Buy | 25,000 |
| CERC | Chief Commercial Officer | Dec 10, 2019 | Buy | 8,725 |
| CERC | Exec. VP, Mktg & External Comm | Jun 10, 2019 | Buy | 12,523 |
| CERC | Exec. VP, Mktg & External Comm | Dec 10, 2018 | Buy | 11,834 |