| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| DONDERO JAMES D | 6.3% | 3.5M | 1.74K | 3.5M | /s/ James D. Dondero | James D. Dondero | 0001228922 |
| HIGHLAND GLOBAL ALLOCATION FUND | 2.6% | 1.43M | 0 | 1.43M | /s/ Stephanie Vitiello | Stephanie Vitiello/Chief Compliance Officer | 0001622148 |
| Drugcrafters, L.P. | 0.1% | 72.1K | 0 | 72.1K | /s/ James D. Dondero | James D. Dondero/Managing Member of the General Partner | |
| NEXPOINT ASSET MANAGEMENT, L.P. | 2.6% | 1.43M | 0 | 1.43M | /s/ James D. Dondero | James D. Dondero/President | 0001469877 |
| DONDERO NANCY MARIE | 3.6% | 2M | 0 | 2M | /s/ Nancy Marie Dondero | Nancy Marie Dondero | 0001656757 |