| Symbol | Relationship | Date | Transaction | Cost | # Shares | Value($) | Total Shares | Form 4 |
| CYTH | Chief Financial Officer | Mar 29, 2021 | Buy | $7.40 | 50 | 370 | 16,900 | Mar 30, 2021, 01:25 PM |
| CTDH | Chief Financial Officer | Nov 23, 2020 | Buy | $0.08 | 10,000 | 799 | 670,000 | Nov 25, 2020, 06:48 PM |
| CTDH | Chief Financial Officer | Nov 25, 2020 | Buy | $0.08 | 15,000 | 1,125 | 685,000 | Nov 25, 2020, 06:48 PM |
| Symbol | Relationship | Date | Transaction | Value($) |
| CYTH | Chief Financial Officer | Mar 29, 2021 | Buy | 370 |
| CTDH | Chief Financial Officer | Nov 23, 2020 | Buy | 799 |
| CTDH | Chief Financial Officer | Nov 25, 2020 | Buy | 1,125 |