| Date | Issuer | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| Mersana Therapeutics Inc. | D | Stock Option (right to buy) | |||||
| Mersana Therapeutics Inc. | U | Common Stock | |||||
| Mersana Therapeutics Inc. | A | Stock Option (right to buy) | |||||
| Adaptimmune Therapeutics plc | A | Option to purchase Ordinary Shares | |||||
| Mersana Therapeutics Inc. | A | Stock Option (right to buy) |