| WEXFORD CAPITAL LP | 3,600,552 | $12.9m | 1.6% |
| Topline Capital Management, LLC | 535,698 | $1.9m | 0.5% |
| VANGUARD CAPITAL MANAGEMENT LLC | 198,643 | $709,156 | 0.0% |
| MORGAN STANLEY | 128,915 | $460,227 | 0.0% |
| Cornerstone Capital, Inc. | 128,700 | $459,459 | 0.0% |
| BARD ASSOCIATES INC | 118,003 | $421,271 | 0.1% |
| RENAISSANCE TECHNOLOGIES LLC | 77,504 | $276,689 | 0.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 70,263 | $250,916 | 0.0% |
| Mesirow Financial Investment Management, Inc. | 60,000 | $214,200 | 0.0% |
| HighTower Advisors, LLC | 59,710 | $213,165 | 0.0% |
| NAVELLIER & ASSOCIATES INC | 53,479 | $190,920 | 0.0% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 38,927 | $138,969 | 0.0% |
| VANGUARD FIDUCIARY TRUST CO | 36,901 | $131,737 | 0.0% |
| BLAIR WILLIAM & CO/IL | 36,249 | $129,409 | 0.0% |
| CITADEL ADVISORS LLC | 29,044 | $103,687 | 0.0% |
| DIMENSIONAL FUND ADVISORS LP | 22,164 | $79,126 | 0.0% |
| BlackRock, Inc. | 18,822 | $67,195 | 0.0% |
| De Lisle Partners LLP | 17,400 | $62,118 | 0.0% |
| NORTHERN TRUST CORP | 16,706 | $59,640 | 0.0% |
| STATE STREET CORP | 15,698 | $56,042 | 0.0% |
| GOLDMAN SACHS GROUP INC | 12,836 | $45,825 | 0.0% |
| MERCER GLOBAL ADVISORS INC /ADV | 12,500 | $44,625 | 0.0% |
| Cannell & Spears LLC | 11,000 | $39,270 | 0.0% |
| ELKHORN PARTNERS LIMITED PARTNERSHIP | 11,000 | $39,270 | 0.0% |
| ROYAL BANK OF CANADA | 827 | $3,000 | 0.0% |