| Nantahala Capital Management, LLC | 3,522,882 | $5.2m | 0.1% |
| AQR CAPITAL MANAGEMENT LLC | 2,288,414 | $3.4m | 0.0% |
| Palo Alto Investors LP | 1,482,797 | $2.2m | 0.3% |
| BlackRock, Inc. | 1,342,468 | $2.0m | 0.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | 1,180,462 | $1.8m | 0.0% |
| Assenagon Asset Management S.A. | 945,138 | $1.4m | 0.0% |
| D. E. Shaw & Co., Inc. | 568,229 | $846,662 | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 551,494 | $821,667 | 0.0% |
| REDWOOD CAPITAL MANAGEMENT, LLC | 467,395 | $696,419 | 0.1% |
| GOLDMAN SACHS GROUP INC | 447,455 | $666,708 | 0.0% |
| Eversept Partners, LP | 404,854 | $603,232 | 0.0% |
| GSA CAPITAL PARTNERS LLP | 331,371 | $494,000 | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 325,490 | $485,205 | 0.0% |
| JANE STREET GROUP, LLC | 315,694 | $470,384 | 0.0% |
| Centiva Capital, LP | 286,597 | $427,030 | 0.0% |
| RBF Capital, LLC | 265,800 | $396,042 | 0.0% |
| MILLENNIUM MANAGEMENT LLC | 247,914 | $369,392 | 0.0% |
| CITADEL ADVISORS LLC | 205,066 | $305,548 | 0.0% |
| ACADIAN ASSET MANAGEMENT LLC | 200,350 | $297,000 | 0.0% |
| VANGUARD FIDUCIARY TRUST CO | 194,639 | $290,012 | 0.0% |
| Quinn Opportunity Partners LLC | 174,000 | $259,260 | 0.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 173,843 | $259,026 | 0.0% |
| BANK OF AMERICA CORP /DE/ | 169,415 | $252,429 | 0.0% |
| STATE STREET CORP | 139,825 | $208,339 | 0.0% |
| MARSHALL WACE, LLP | 133,900 | $199,511 | 0.0% |