| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Camber Capital Management LP | 5.7% | 1,600,000 | 0 | 1,600,000 | Sean George | Chief Financial Officer / Chief Compliance Officer | |
| Stephen DuBois | 5.7% | 1,600,000 | 0 | 1,600,000 | Stephen DuBois | Authorized Signatory |