| Date | Issuer | Type | Security | Price | Units | Value | |
|---|---|---|---|---|---|---|---|
| bluebird bio Inc. Chief Financial Officer | A | Stock Option (right to buy) | |||||
| bluebird bio Inc. Chief Financial Officer | S | Common Stock | |||||
| bluebird bio Inc. Chief Financial Officer | A | Common Stock | |||||
| bluebird bio Inc. Chief Financial Officer | A | Stock Options (Right to buy) |