| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Deerfield Mgmt, L.P. | 3.81% | 7.3M | 0 | 7.3M | /s/ Jonathan Isler | Jonathan Isler, Attorney-In-Fact | |
| Deerfield Management Company, L.P. | 3.81% | 7.3M | 0 | 7.3M | /s/ Jonathan Isler | Jonathan Isler, Attorney-In-Fact | |
| Deerfield Partners, L.P. | 3.81% | 7.3M | 0 | 7.3M | /s/ Jonathan Isler | Jonathan Isler, Attorney-In-Fact | |
| James E. Flynn | 3.81% | 7.3M | 0 | 7.3M | /s/ Jonathan Isler | Jonathan Isler, Attorney-In-Fact |