| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| CERC | Chief Commercial Officer | Aug 23, 2019 | Option Exercise | $1.07 | 512,500 | 548,375 | 512,500 | Oct 21, 2019, 05:15 PM |
| CERC | Chief Commercial Officer | Jun 10, 2019 | Buy | $2.85 | 523 | 1,489 | 1,020 | Jun 11, 2019, 09:04 PM |
| CERC | Chief Commercial Officer | Dec 10, 2018 | Buy | $2.85 | 497 | 1,415 | 497 | Dec 11, 2018, 05:22 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| CERC | Chief Commercial Officer | Aug 23, 2019 | Option Exercise | 548,375 |
| CERC | Chief Commercial Officer | Jun 10, 2019 | Buy | 1,489 |
| CERC | Chief Commercial Officer | Dec 10, 2018 | Buy | 1,415 |