| AWM Investment Company, Inc. | 5,649,544 | $12,118 |
| INTEGRITY WEALTH ADVISORS, INC. | 5,452,499 | $11,723 |
| VANGUARD GROUP INC | 2,103,741 | $4,513 |
| Manatuck Hill Partners, LLC | 1,343,225 | $2,881 |
| Pacific Ridge Capital Partners, LLC | 1,327,187 | $2,847 |
| FNY Investment Advisers, LLC | 1,034,245 | $2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1,021,945 | $2,192 |
| Herald Investment Management Ltd | 700,000 | $1,498 |
| BlackRock, Inc. | 667,966 | $1,433 |
| GEODE CAPITAL MANAGEMENT, LLC | 504,996 | $1,084 |
| Fi3 FINANCIAL ADVISORS, LLC | 480,692 | $1,031 |
| Sequoia Financial Advisors, LLC | 477,883 | $1,025 |
| Evernest Financial Advisors, LLC | 313,267 | $642 |
| Prospera Financial Services Inc | 288,150 | $618 |
| CITADEL ADVISORS LLC | 216,128 | $464 |
| BOKF, NA | 183,100 | $393 |
| STATE STREET CORP | 159,169 | $341 |
| GOLDMAN SACHS GROUP INC | 119,815 | $257 |
| RENAISSANCE TECHNOLOGIES LLC | 116,436 | $250 |
| Aristides Capital LLC | 112,755 | $242 |
| NORTHERN TRUST CORP | 98,639 | $212 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 72,907 | $156 |
| Peterson Wealth Advisors, LLC | 71,224 | $153 |
| UBS Group AG | 67,255 | $144 |
| MARSHALL WACE, LLP | 63,961 | $138 |
| CAPITAL ADVISORS INC/OK | 43,690 | $94 |
| JANE STREET GROUP, LLC | 37,944 | $81 |
| HRT FINANCIAL LP | 36,942 | $0 |
| Qube Research & Technologies Ltd | 27,584 | $59 |
| RAYMOND JAMES FINANCIAL INC | 25,919 | $56 |
| Creative Planning | 21,794 | $47 |
| LPL Financial LLC | 21,285 | $46 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 20,918 | $45 |
| CAPTRUST FINANCIAL ADVISORS | 20,000 | $43 |
| Cetera Investment Advisers | 11,500 | $25 |
| MORGAN STANLEY | 11,165 | $24 |
| Centiva Capital, LP | 10,782 | $23 |
| Jaffetilchin Investment Partners, LLC | 10,150 | $22 |
| MTM Investment Management, LLC | 7,737 | $17 |
| JPMORGAN CHASE & CO | 7,000 | $15 |
| ROYAL BANK OF CANADA | 2,066 | $4 |
| WELLS FARGO & COMPANY/MN | 1,002 | $2 |
| Smartleaf Asset Management LLC | 1,000 | $2 |
| Garton & Associates Financial Advisors LLC | 650 | $1 |
| WFA of San Diego, LLC | 500 | $1 |
| BANK OF AMERICA CORP /DE/ | 90 | $0 |
| SBI Securities Co., Ltd. | 3 | $0 |
| CITIGROUP INC | 1 | $0 |