| Whetstone Capital Advisors, LLC | 1,508,303 | $18,492 |
| BlackRock, Inc. | 1,194,711 | $14,647 |
| VANGUARD GROUP INC | 1,136,933 | $13,939 |
| ROYCE & ASSOCIATES LP | 682,030 | $8,362 |
| KENNEDY CAPITAL MANAGEMENT LLC | 673,920 | $8,262 |
| RICE HALL JAMES & ASSOCIATES, LLC | 590,674 | $7,242 |
| BLAIR WILLIAM & CO/IL | 582,585 | $7,142 |
| Parkman Healthcare Partners LLC | 538,649 | $6,604 |
| NEXT CENTURY GROWTH INVESTORS LLC | 505,407 | $6,196 |
| STATE STREET CORP | 477,531 | $5,855 |
| DIMENSIONAL FUND ADVISORS LP | 460,909 | $5,651 |
| Manatuck Hill Partners, LLC | 422,107 | $5,175 |
| GEODE CAPITAL MANAGEMENT, LLC | 396,468 | $4,862 |
| G2 Investment Partners Management LLC | 310,000 | $3,801 |
| Russell Investments Group, Ltd. | 289,060 | $3,544 |
| AWM Investment Company, Inc. | 230,421 | $2,825 |
| Squarepoint Ops LLC | 206,961 | $2,537 |
| Bullseye Asset Management LLC | 206,527 | $3 |
| MORGAN STANLEY | 164,592 | $2,018 |
| NORTHERN TRUST CORP | 156,927 | $1,924 |
| GOLDMAN SACHS GROUP INC | 127,014 | $1,557 |
| Granahan Investment Management, LLC | 117,122 | $1,436 |
| Bank of New York Mellon Corp | 114,258 | $1,401 |
| D. E. Shaw & Co., Inc. | 112,867 | $1,384 |
| Schonfeld Strategic Advisors LLC | 98,170 | $1,204 |
| Calamos Advisors LLC | 97,118 | $1,191 |
| Inspire Investing, LLC | 95,880 | $1,175 |
| CREDIT AGRICOLE S A | 89,200 | $1,094 |
| JANE STREET GROUP, LLC | 87,481 | $1,073 |
| RAYMOND JAMES FINANCIAL INC | 82,414 | $1,010 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 81,318 | $997 |
| AVENIR CORP | 77,260 | $947 |
| BOOTHBAY FUND MANAGEMENT, LLC | 73,488 | $901 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 69,029 | $846 |
| Qube Research & Technologies Ltd | 59,161 | $725 |
| P.A.W. CAPITAL CORP | 55,000 | $674 |
| SEI INVESTMENTS CO | 53,789 | $659 |
| STATE OF WISCONSIN INVESTMENT BOARD | 53,094 | $651 |
| TWO SIGMA INVESTMENTS, LP | 46,181 | $566 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | 44,577 | $874 |
| MILLENNIUM MANAGEMENT LLC | 43,669 | $535 |
| BANK OF AMERICA CORP /DE/ | 42,576 | $522 |
| ALLIANCEBERNSTEIN L.P. | 39,850 | $489 |
| Nuveen, LLC | 38,786 | $476 |
| UBS Group AG | 34,960 | $429 |
| Diametric Capital, LP | 33,263 | $408 |
| PRUDENTIAL FINANCIAL INC | 31,495 | $386 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 29,741 | $365 |
| RENAISSANCE TECHNOLOGIES LLC | 29,578 | $363 |
| WELLS FARGO & COMPANY/MN | 28,903 | $354 |
| PRINCIPAL FINANCIAL GROUP INC | 27,531 | $338 |
| RHUMBLINE ADVISERS | 27,451 | $337 |
| BARCLAYS PLC | 27,441 | $336 |
| LPL Financial LLC | 26,698 | $327 |
| AMERIPRISE FINANCIAL INC | 25,351 | $311 |
| CenterBook Partners LP | 25,224 | $309 |
| HARBOR CAPITAL ADVISORS, INC. | 24,876 | $0 |
| STRS OHIO | 24,500 | $300 |
| GWN SECURITIES INC. | 22,358 | $274 |
| Hillsdale Investment Management Inc. | 20,300 | $249 |
| MARSHALL WACE, LLP | 19,825 | $243 |
| Engineers Gate Manager LP | 18,634 | $228 |
| Quantinno Capital Management LP | 17,504 | $215 |
| PERKINS CAPITAL MANAGEMENT INC | 17,408 | $213 |
| HRT FINANCIAL LP | 17,295 | $0 |
| FRANKLIN RESOURCES INC | 16,284 | $200 |
| AQR CAPITAL MANAGEMENT LLC | 14,514 | $178 |
| CANADA PENSION PLAN INVESTMENT BOARD | 13,900 | $170 |
| Campbell & CO Investment Adviser LLC | 12,908 | $158 |
| GSA CAPITAL PARTNERS LLP | 12,604 | $0 |
| DEUTSCHE BANK AG\ | 12,397 | $152 |
| ExodusPoint Capital Management, LP | 12,252 | $150 |
| CITADEL ADVISORS LLC | 11,976 | $147 |
| Point72 Asset Management, L.P. | 11,965 | $147 |
| PRELUDE CAPITAL MANAGEMENT, LLC | 11,063 | $136 |
| Worth Venture Partners, LLC | 10,750 | $132 |
| State of Wyoming | 10,535 | $129 |
| Quantbot Technologies LP | 9,847 | $121 |
| MetLife Investment Management, LLC | 9,844 | $121 |
| Virtus ETF Advisers LLC | 9,687 | $119 |
| JPMORGAN CHASE & CO | 8,173 | $100 |
| GROUP ONE TRADING, L.P. | 8,051 | $99 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 7,356 | $90 |
| MAI Capital Management | 5,700 | $70 |
| FMR LLC | 5,591 | $69 |
| State of Alaska, Department of Revenue | 5,067 | $0 |
| NEW YORK STATE COMMON RETIREMENT FUND | 5,034 | $62 |
| Police & Firemen's Retirement System of New Jersey | 4,583 | $56 |
| BNP PARIBAS ARBITRAGE, SA | 4,257 | $52 |
| SIMPLEX TRADING, LLC | 4,091 | $50 |
| Tower Research Capital LLC (TRC) | 2,147 | $26 |
| NISA INVESTMENT ADVISORS, LLC | 2,121 | $26 |
| Avalon Trust Co | 2,000 | $25 |
| Covestor Ltd | 1,914 | $0 |
| ROYAL BANK OF CANADA | 1,851 | $23 |
| Versant Capital Management, Inc | 1,793 | $22 |
| Legal & General Group Plc | 1,580 | $19 |
| BARD ASSOCIATES INC | 1,480 | $18 |
| Ameritas Investment Partners, Inc. | 1,258 | $15 |
| OSAIC HOLDINGS, INC. | 1,227 | $15 |
| 28 other institutions | 7,874 | $82 |