| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Suvretta Capital Management, LLC | 5.1% | 14.5M | 0 | 14.5M | /s/ Andrew Nathanson | Andrew Nathanson/General Counsel and Chief Compliance Officer | |
| Averill Master Fund, Ltd. | 4.5% | 12.7M | 0 | 12.7M | /s/ Andrew Nathanson | Andrew Nathanson/Authorized Signatory | |
| Aaron Cowen | 5.1% | 14.5M | 0 | 14.5M | /s/ Aaron Cowen | Aaron Cowen |