| DAFNA Capital Management LLC | 13,680,554 | $31,465 |
| Lagoda Investment Management, L.P. | 4,861,200 | $11,181 |
| BlackRock, Inc. | 4,024,583 | $9,257 |
| VANGUARD GROUP INC | 3,692,754 | $8,493 |
| Arbiter Partners Capital Management LLC | 2,883,856 | $6,633 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,565,182 | $3,601 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 1,562,019 | $3,593 |
| Archon Capital Management LLC | 1,226,044 | $2,820 |
| Warberg Asset Management LLC | 1,107,657 | $2,548 |
| PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. | 901,252 | $2,073 |
| STATE STREET CORP | 891,886 | $2,051 |
| AlphaCentric Advisors LLC | 600,000 | $1,380 |
| NORTHERN TRUST CORP | 473,455 | $1,089 |
| RENAISSANCE TECHNOLOGIES LLC | 448,400 | $1,031 |
| SEI INVESTMENTS CO | 248,441 | $571 |
| UBS Group AG | 225,609 | $519 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 221,475 | $509 |
| GOLDMAN SACHS GROUP INC | 206,535 | $475 |
| Bank of New York Mellon Corp | 203,833 | $469 |
| Independent Advisor Alliance | 198,385 | $456 |
| MORGAN STANLEY | 191,848 | $441 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 190,387 | $438 |
| ENVESTNET ASSET MANAGEMENT INC | 165,681 | $381 |
| ROYAL BANK OF CANADA | 158,849 | $366 |
| BARCLAYS PLC | 150,246 | $346 |
| Kovack Advisors, Inc. | 139,718 | $321 |
| RHUMBLINE ADVISERS | 133,715 | $308 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 95,221 | $0 |
| BANK OF AMERICA CORP /DE/ | 90,628 | $208 |
| LPL Financial LLC | 87,359 | $201 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 78,855 | $181 |
| Leonteq Securities AG | 74,994 | $172 |
| Nuveen, LLC | 73,990 | $170 |
| WEALTH EFFECTS LLC | 69,060 | $159 |
| HSBC HOLDINGS PLC | 68,605 | $156 |
| TWO SIGMA INVESTMENTS, LP | 67,729 | $156 |
| WELLS FARGO & COMPANY/MN | 66,452 | $153 |
| TCFG WEALTH MANAGEMENT, LLC | 65,015 | $150 |
| Cherry Creek Investment Advisors, Inc. | 57,567 | $132 |
| Qube Research & Technologies Ltd | 52,176 | $120 |
| DEUTSCHE BANK AG\ | 51,584 | $119 |
| JANE STREET GROUP, LLC | 48,182 | $111 |
| Wellington Shields & Co., LLC | 42,527 | $98 |
| FMR LLC | 41,147 | $95 |
| OCCUDO QUANTITATIVE STRATEGIES LP | 40,202 | $92 |
| MARSHALL WACE, LLP | 37,898 | $87 |
| AQR CAPITAL MANAGEMENT LLC | 34,490 | $79 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 28,181 | $65 |
| Forum Financial Management, LP | 26,518 | $61 |
| Invesco Ltd. | 26,424 | $61 |
| JPMORGAN CHASE & CO | 26,260 | $60 |
| INTECH INVESTMENT MANAGEMENT LLC | 25,792 | $59 |
| THOMPSON DAVIS & CO., INC. | 25,199 | $57 |
| Abel Hall, LLC | 22,957 | $53 |
| Summit Asset Management, LLC | 22,500 | $52 |
| Verition Fund Management LLC | 22,000 | $51 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 20,593 | $47 |
| Equitable Holdings, Inc. | 20,000 | $46 |
| RAYMOND JAMES FINANCIAL INC | 19,043 | $44 |
| HRT FINANCIAL LP | 18,329 | $0 |
| Police & Firemen's Retirement System of New Jersey | 17,997 | $41 |
| Investors Research Corp | 17,950 | $41 |
| Schonfeld Strategic Advisors LLC | 17,801 | $41 |
| Polar Capital Holdings Plc | 17,665 | $41 |
| PNC Financial Services Group, Inc. | 17,181 | $40 |
| SG Americas Securities, LLC | 14,463 | $0 |
| BNP PARIBAS ARBITRAGE, SA | 14,186 | $33 |
| ALLIANCEBERNSTEIN L.P. | 13,780 | $32 |
| CHOREO, LLC | 13,511 | $31 |
| WealthPLAN Partners, LLC | 12,665 | $29 |
| TWO SIGMA SECURITIES, LLC | 12,360 | $28 |
| ProShare Advisors LLC | 11,065 | $25 |
| NISA INVESTMENT ADVISORS, LLC | 11,023 | $25 |
| GROUP ONE TRADING, L.P. | 10,588 | $24 |
| Roble, Belko & Company, Inc | 10,000 | $0 |
| Daytona Street Capital LLC | 10,000 | $23 |
| Tradewinds Capital Management, LLC | 8,000 | $18 |
| NEW YORK STATE COMMON RETIREMENT FUND | 7,600 | $17 |
| Russell Investments Group, Ltd. | 6,027 | $14 |
| Legal & General Group Plc | 5,608 | $13 |
| Ameritas Investment Partners, Inc. | 5,370 | $12 |
| Rockefeller Capital Management L.P. | 4,750 | $11 |
| Tower Research Capital LLC (TRC) | 4,508 | $10 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 3,732 | $9 |
| Smartleaf Asset Management LLC | 3,511 | $8 |
| Larson Financial Group LLC | 2,622 | $6 |
| AMALGAMATED BANK | 1,906 | $0 |
| CWM, LLC | 1,880 | $0 |
| GAMMA Investing LLC | 1,801 | $4 |
| CITIGROUP INC | 1,704 | $4 |
| MAI Capital Management | 1,250 | $3 |
| JONES FINANCIAL COMPANIES LLLP | 750 | $2 |
| Sterling Capital Management LLC | 640 | $1 |
| EverSource Wealth Advisors, LLC | 322 | $1 |
| CIBC Private Wealth Group, LLC | 300 | $1 |
| OSAIC HOLDINGS, INC. | 261 | $1 |
| SRS Capital Advisors, Inc. | 101 | $0 |
| Clark Wealth Partners | 100 | $0 |
| True Wealth Design, LLC | 56 | $0 |
| Sunbelt Securities, Inc. | 43 | $0 |
| 2 other institutions | 21 | $0 |