| VANGUARD GROUP INC | 4,989,758 | $187,166 |
| BlackRock, Inc. | 4,450,383 | $166,934 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 1,857,740 | $69,684 |
| NEUBERGER BERMAN GROUP LLC | 1,486,380 | $55,813 |
| Invesco Ltd. | 1,399,229 | $52,485 |
| GEODE CAPITAL MANAGEMENT, LLC | 1,234,696 | $46,320 |
| Harvey Partners, LLC | 1,202,502 | $45,106 |
| AWM Investment Company, Inc. | 1,169,680 | $43,875 |
| Artisan Partners Limited Partnership | 1,101,436 | $41,315 |
| STATE STREET CORP | 1,050,869 | $39,418 |
| Senvest Management, LLC | 997,501 | $37,416 |
| ROYCE & ASSOCIATES LP | 924,383 | $34,674 |
| PINNACLE ASSOCIATES LTD | 875,471 | $32,839 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 861,839 | $32,328 |
| Hood River Capital Management LLC | 804,457 | $30,175 |
| EMERALD ADVISERS, LLC | 781,877 | $29,328 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 770,492 | $28,901 |
| Stephens Investment Management Group LLC | 760,729 | $28,535 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 732,547 | $27,478 |
| DIMENSIONAL FUND ADVISORS LP | 720,624 | $27,034 |
| AIGH Capital Management LLC | 600,103 | $22,510 |
| Portolan Capital Management, LLC | 590,433 | $22,147 |
| ACADIAN ASSET MANAGEMENT LLC | 572,191 | $21 |
| Nuveen, LLC | 526,014 | $19,731 |
| AQR CAPITAL MANAGEMENT LLC | 499,485 | $18,736 |
| NORTHERN TRUST CORP | 491,254 | $18,427 |
| EMERALD MUTUAL FUND ADVISERS TRUST | 429,772 | $16,121 |
| ArrowMark Colorado Holdings LLC | 416,717 | $15,631 |
| GOLDMAN SACHS GROUP INC | 415,542 | $15,587 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 414,861 | $15,561 |
| First Washington CORP | 388,799 | $14,584 |
| ALGERT GLOBAL LLC | 365,760 | $14 |
| MORGAN STANLEY | 361,769 | $13,570 |
| OBERWEIS ASSET MANAGEMENT INC/ | 356,400 | $13,369 |
| LORD, ABBETT & CO. LLC | 349,570 | $13 |
| NEW YORK STATE COMMON RETIREMENT FUND | 342,080 | $12,831 |
| JPMORGAN CHASE & CO | 333,740 | $12,519 |
| RAYMOND JAMES FINANCIAL INC | 312,373 | $11,717 |
| D. E. Shaw & Co., Inc. | 306,106 | $11,482 |
| CITADEL ADVISORS LLC | 288,852 | $10,835 |
| Divisar Capital Management LLC | 288,438 | $10,819 |
| EAM Investors, LLC | 274,215 | $10,286 |
| FIRST TRUST ADVISORS LP | 263,617 | $9,888 |
| Squarepoint Ops LLC | 258,529 | $9,697 |
| APIS CAPITAL ADVISORS, LLC | 250,800 | $9,408 |
| MYDA Advisors LLC | 239,042 | $8,966 |
| PRIMECAP MANAGEMENT CO/CA/ | 226,739 | $8,505 |
| Qube Research & Technologies Ltd | 216,741 | $8,130 |
| Herald Investment Management Ltd | 215,000 | $8,056 |
| TUDOR INVESTMENT CORP ET AL | 213,234 | $7,998 |
| Connor, Clark & Lunn Investment Management Ltd. | 212,105 | $7,956 |
| Granite Investment Partners, LLC | 186,815 | $7,007 |
| SEI INVESTMENTS CO | 180,959 | $6,788 |
| BANK OF AMERICA CORP /DE/ | 177,126 | $6,644 |
| MARSHALL WACE, LLP | 142,619 | $5,350 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 141,254 | $5,298 |
| Roubaix Capital, LLC | 139,048 | $5,216 |
| Bank of New York Mellon Corp | 137,214 | $5,147 |
| Pier Capital, LLC | 131,747 | $4,942 |
| UBS Group AG | 118,515 | $4,445 |
| FMR LLC | 117,970 | $4,425 |
| VICTORY CAPITAL MANAGEMENT INC | 114,898 | $4,310 |
| FEDERATED HERMES, INC. | 112,306 | $4,213 |
| Engineers Gate Manager LP | 109,376 | $4,103 |
| RENAISSANCE TECHNOLOGIES LLC | 107,500 | $4,032 |
| HRT FINANCIAL LP | 104,429 | $4 |
| Lisanti Capital Growth, LLC | 103,978 | $3,900 |
| STIFEL FINANCIAL CORP | 95,490 | $3,582 |
| Swiss National Bank | 93,500 | $3,507 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 91,819 | $3,444 |
| Gotham Asset Management, LLC | 90,652 | $3,400 |
| MILLENNIUM MANAGEMENT LLC | 87,120 | $3,268 |
| Fisher Asset Management, LLC | 85,627 | $3,212 |
| RICE HALL JAMES & ASSOCIATES, LLC | 84,995 | $3,188 |
| STATE OF WISCONSIN INVESTMENT BOARD | 84,919 | $3,185 |
| BNP PARIBAS ARBITRAGE, SA | 80,329 | $3,013 |
| BARCLAYS PLC | 73,759 | $2,767 |
| Creative Planning | 69,813 | $2,619 |
| JANE STREET GROUP, LLC | 66,343 | $2,489 |
| FRANKLIN RESOURCES INC | 66,003 | $2,476 |
| RHUMBLINE ADVISERS | 63,279 | $2,374 |
| POLEN CAPITAL MANAGEMENT LLC | 61,624 | $2,312 |
| Trexquant Investment LP | 60,498 | $2,269 |
| UBS ASSET MANAGEMENT AMERICAS INC | 59,673 | $2,238 |
| WELLS FARGO & COMPANY/MN | 57,943 | $2,173 |
| ALLIANCEBERNSTEIN L.P. | 52,376 | $1,965 |
| IEQ CAPITAL, LLC | 51,337 | $1,926 |
| Russell Investments Group, Ltd. | 50,493 | $1,894 |
| Sender Co & Partners, Inc. | 48,292 | $1,811 |
| Legal & General Group Plc | 45,590 | $1,710 |
| FNY Investment Advisers, LLC | 44,108 | $2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 44,085 | $1,654 |
| Pathstone Holdings, LLC | 42,562 | $1,597 |
| PRUDENTIAL FINANCIAL INC | 41,825 | $1,569 |
| Quantinno Capital Management LP | 41,527 | $1,558 |
| PICTON MAHONEY ASSET MANAGEMENT | 41,070 | $1,541 |
| GSA CAPITAL PARTNERS LLP | 40,056 | $2 |
| Verition Fund Management LLC | 38,471 | $1,443 |
| CAPTRUST FINANCIAL ADVISORS | 37,615 | $1,411 |
| DEUTSCHE BANK AG\ | 37,346 | $1,401 |
| 147 other institutions | 1,442,773 | $51,775 |