| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| DONDERO JAMES D | 7.5% | 4,144,712 | 1,744 | 4,144,712 | /s/ James D. Dondero | James D. Dondero | 0001228922 |
| HIGHLAND GLOBAL ALLOCATION FUND | 3.7% | 2,064,005 | 0 | 2,064,005 | /s/ Stephanie Vitiello | Stephanie Vitiello, Chief Compliance Officer | 0001622148 |
| Drugcrafters, L.P. | 0.1% | 72,082 | 0 | 72,082 | /s/ James D. Dondero | James D. Dondero, Managing Member of the General Partner | |
| NEXPOINT ASSET MANAGEMENT, L.P. | 3.7% | 2,064,005 | 0 | 2,064,005 | /s/ James D. Dondero | James D. Dondero, President | 0001469877 |
| DONDERO NANCY MARIE | 3.6% | 2,006,881 | 0 | 2,006,881 | /s/ Nancy Marie Dondero | Nancy Marie Dondero | 0001656757 |