| 1 | BlackRock, Inc. | 1,793,152 | $113.0M | 0.00% | Share |
| 2 | Divisadero Street Capital Management, LP | 1,123,226 | $71.3M | 3.33% | Share |
| 3 | VANGUARD GROUP INC | 1,043,766 | $66.3M | 0.00% | Share |
| 4 | Accredited Investors Inc. | 913,042 | $58.0M | 3.08% | Share |
| 5 | STATE STREET CORP | 600,656 | $38.0M | 0.00% | Share |
| 6 | BlackRock, Inc. | 473,570 | $30.0M | 0.00% | Share |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 435,455 | $27.0M | 0.00% | Share |
| 8 | PRICE T ROWE ASSOCIATES INC /MD/ | 364,046 | $23.0M | 0.00% | Share |
| 9 | Caption Management, LLC | 289,000 | $18.3M | 0.13% | Put |
| 10 | DIMENSIONAL FUND ADVISORS LP | 293,082 | $18.0M | 0.00% | Share |
| 11 | ARDSLEY ADVISORY PARTNERS LP | 245,000 | $15.6M | 1.71% | Share |
| 12 | GOLDMAN SACHS GROUP INC | 215,787 | $13.0M | 0.00% | Share |
| 13 | Invesco Ltd. | 201,269 | $12.8M | 0.00% | Share |
| 14 | MARSHALL WACE, LLP | 202,777 | $12.0M | 0.01% | Share |
| 15 | PRINCIPAL FINANCIAL GROUP INC | 173,847 | $11.0M | 0.01% | Share |
| 16 | CITADEL ADVISORS LLC | 180,300 | $11.0M | 0.00% | Call |
| 17 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 189,000 | $11.0M | 0.00% | Put |
| 18 | G2 Investment Partners Management LLC | 173,000 | $11.0M | 2.61% | Share |
| 19 | Portolan Capital Management, LLC | 167,873 | $10.7M | 0.57% | Share |
| 20 | T. Rowe Price Investment Management, Inc. | 153,196 | $9.7M | 0.01% | Share |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 148,900 | $9.0M | 0.00% | Share |
| 22 | NORTHERN TRUST CORP | 139,201 | $8.0M | 0.00% | Share |
| 23 | Caption Management, LLC | 118,400 | $7.5M | 0.05% | Call |
| 24 | IMC-Chicago, LLC | 115,300 | $7.3M | 0.00% | Call |
| 25 | VANGUARD GROUP INC | 114,829 | $7.3M | 0.00% | Share |
| 26 | CITADEL ADVISORS LLC | 112,900 | $7.0M | 0.00% | Put |
| 27 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 116,400 | $7.0M | 0.00% | Call |
| 28 | UBS Group AG | 107,641 | $6.8M | 0.00% | Share |
| 29 | Trexquant Investment LP | 102,138 | $6.5M | 0.06% | Share |
| 30 | MORGAN STANLEY | 99,548 | $6.0M | 0.00% | Share |
| 31 | ROYAL BANK OF CANADA | 101,607 | $6.0M | 0.00% | Share |
| 32 | PEREGRINE CAPITAL MANAGEMENT LLC | 88,859 | $5.6M | 0.17% | Share |
| 33 | MORGAN STANLEY | 80,667 | $5.0M | 0.00% | Share |
| 34 | IMC-Chicago, LLC | 75,100 | $4.8M | 0.00% | Put |
| 35 | D. E. Shaw & Co., Inc. | 78,203 | $4.0M | 0.00% | Share |
| 36 | CITIGROUP INC | 70,924 | $4.0M | 0.00% | Share |
| 37 | FIRST TRUST ADVISORS LP | 77,327 | $4.0M | 0.00% | Share |
| 38 | Verition Fund Management LLC | 72,879 | $4.0M | 0.02% | Share |
| 39 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 72,539 | $4.0M | 0.00% | Share |
| 40 | Voleon Capital Management LP | 76,895 | $4.0M | 0.09% | Share |
| 41 | BlackRock, Inc. | 77,006 | $4.0M | 0.00% | Share |
| 42 | Regal Partners Ltd | 59,054 | $3.7M | 0.22% | Share |
| 43 | Twin Tree Management, LP | 57,673 | $3.7M | 0.03% | Share |
| 44 | Whetstone Capital Advisors, LLC | 57,605 | $3.7M | 1.14% | Share |
| 45 | Twin Tree Management, LP | 57,400 | $3.6M | 0.03% | Put |
| 46 | HUSSMAN STRATEGIC ADVISORS, INC. | 52,500 | $3.3M | 0.81% | Share |
| 47 | SG Americas Securities, LLC | 49,749 | $3.2M | 0.00% | Share |
| 48 | NAVELLIER & ASSOCIATES INC | 47,860 | $3.0M | 0.34% | Share |
| 49 | CAPITAL FUND MANAGEMENT S.A. | 57,900 | $3.0M | 0.01% | Call |
| 50 | BANK OF AMERICA CORP /DE/ | 59,538 | $3.0M | 0.00% | Share |