| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| AstraZeneca PLC | 7.8% | 522,667 | 522,667 | 0 | /s/ Matthew Bowden | Matthew Bowden / Company Secretary | |
| Alexion Pharmaceuticals, Inc. | 7.8% | 522,667 | 522,667 | 0 | /s/ Todd Spalding | Todd Spalding / Secretary |