| 1 | Granahan Investment Management, LLC | 11,590,428 | $105.8M | 4.53% | Share |
| 2 | VANGUARD GROUP INC | 6,546,010 | $59.8M | 0.00% | Share |
| 3 | Park West Asset Management LLC | 5,050,000 | $46.1M | 3.83% | Share |
| 4 | GILDER GAGNON HOWE & CO LLC | 4,347,373 | $39.7M | 0.42% | Share |
| 5 | BlackRock, Inc. | 3,638,161 | $33.0M | 0.00% | Share |
| 6 | BlackRock, Inc. | 2,933,950 | $26.0M | 0.00% | Share |
| 7 | DRIEHAUS CAPITAL MANAGEMENT LLC | 2,469,216 | $22.5M | 0.15% | Share |
| 8 | Invesco Ltd. | 2,399,974 | $21.9M | 0.00% | Share |
| 9 | STATE STREET CORP | 2,220,891 | $20.0M | 0.00% | Share |
| 10 | Portolan Capital Management, LLC | 2,083,055 | $19.0M | 1.02% | Share |
| 11 | D. E. Shaw & Co., Inc. | 2,093,462 | $19.0M | 0.01% | Share |
| 12 | GEODE CAPITAL MANAGEMENT, LLC | 1,991,266 | $18.0M | 0.00% | Share |
| 13 | HENNESSY ADVISORS INC | 1,446,500 | $13.2M | 0.47% | Share |
| 14 | Zweig-DiMenna Associates LLC | 1,329,200 | $12.0M | 0.74% | Share |
| 15 | WELLINGTON MANAGEMENT GROUP LLP | 1,246,208 | $11.0M | 0.00% | Share |
| 16 | TWO SIGMA INVESTMENTS, LP | 1,064,281 | $9.0M | 0.01% | Share |
| 17 | DIMENSIONAL FUND ADVISORS LP | 999,065 | $9.0M | 0.00% | Share |
| 18 | G2 Investment Partners Management LLC | 899,000 | $8.2M | 1.95% | Share |
| 19 | Parallax Volatility Advisers, L.P. | 792,500 | $7.0M | 0.01% | Put |
| 20 | NORTHERN TRUST CORP | 793,574 | $7.0M | 0.00% | Share |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 796,598 | $7.0M | 0.00% | Share |
| 22 | D. E. Shaw & Co., Inc. | 675,827 | $6.0M | 0.00% | Share |
| 23 | VANGUARD GROUP INC | 652,809 | $6.0M | 0.00% | Share |
| 24 | THOMPSON SIEGEL & WALMSLEY LLC | 644,663 | $5.9M | 0.10% | Share |
| 25 | MOODY NATIONAL BANK TRUST DIVISION | 593,830 | $5.4M | 0.52% | Share |
| 26 | MORGAN STANLEY | 655,241 | $5.0M | 0.00% | Share |
| 27 | WELLS FARGO & COMPANY/MN | 607,528 | $5.0M | 0.00% | Share |
| 28 | UBS Group AG | 534,917 | $4.9M | 0.00% | Share |
| 29 | Beartown Capital Management, LLC | 450,000 | $4.1M | 2.97% | Share |
| 30 | JPMORGAN CHASE & CO | 441,632 | $4.0M | 0.00% | Share |
| 31 | GOLDMAN SACHS GROUP INC | 451,025 | $4.0M | 0.00% | Share |
| 32 | AYAL Capital Advisors Ltd | 406,542 | $3.7M | 1.29% | Share |
| 33 | ASHFORD CAPITAL MANAGEMENT INC | 404,670 | $3.7M | 0.41% | Share |
| 34 | HARBOR CAPITAL ADVISORS, INC. | 388,299 | $3.5M | 0.28% | Share |
| 35 | TUDOR INVESTMENT CORP ET AL | 367,957 | $3.0M | 0.01% | Share |
| 36 | BlackRock, Inc. | 390,297 | $3.0M | 0.00% | Share |
| 37 | PANAGORA ASSET MANAGEMENT INC | 361,132 | $3.0M | 0.01% | Share |
| 38 | FIRST TRUST ADVISORS LP | 340,492 | $3.0M | 0.00% | Share |
| 39 | JPMORGAN CHASE & CO | 362,241 | $3.0M | 0.00% | Share |
| 40 | Alpha Wave Global, LP | 286,797 | $2.6M | 0.32% | Share |
| 41 | Trexquant Investment LP | 279,391 | $2.5M | 0.02% | Share |
| 42 | Schneider Downs Wealth Management Advisors, LP | 274,816 | $2.5M | 0.28% | Share |
| 43 | Veradace Capital Management LLC | 240,246 | $2.2M | 1.34% | Share |
| 44 | BANK OF AMERICA CORP /DE/ | 232,249 | $2.0M | 0.00% | Share |
| 45 | GEODE CAPITAL MANAGEMENT, LLC | 303,212 | $2.0M | 0.00% | Share |
| 46 | CITADEL ADVISORS LLC | 289,093 | $2.0M | 0.00% | Share |
| 47 | HRT FINANCIAL LP | 264,345 | $2.0M | 0.01% | Share |
| 48 | BlackRock, Inc. | 279,450 | $2.0M | 0.00% | Share |
| 49 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 286,585 | $2.0M | 0.00% | Share |
| 50 | BANK OF MONTREAL /CAN/ | 313,649 | $2.0M | 0.00% | Share |