| BlackRock, Inc. | 3,132,241 | $254,025 |
| VANGUARD GROUP INC | 1,622,033 | $131,547 |
| Conestoga Capital Advisors, LLC | 1,424,988 | $115,567 |
| FIRST TRUST ADVISORS LP | 940,140 | $76,245 |
| Copeland Capital Management, LLC | 888,977 | $72,096 |
| GENEVA CAPITAL MANAGEMENT LLC | 814,683 | $66,071 |
| STATE STREET CORP | 806,993 | $65,447 |
| CONGRESS ASSET MANAGEMENT CO /MA | 732,331 | $59,392 |
| GEODE CAPITAL MANAGEMENT, LLC | 633,089 | $51,351 |
| DIMENSIONAL FUND ADVISORS LP | 475,845 | $38,594 |
| MORGAN STANLEY | 440,933 | $35,760 |
| GOLDMAN SACHS GROUP INC | 391,254 | $31,731 |
| Ranger Investment Management, L.P. | 377,032 | $30,577 |
| NORTHERN TRUST CORP | 319,412 | $25,904 |
| ROYAL BANK OF CANADA | 291,102 | $23,608 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 290,069 | $24 |
| ENVESTNET ASSET MANAGEMENT INC | 253,342 | $20,546 |
| KENNEDY CAPITAL MANAGEMENT LLC | 247,907 | $20,105 |
| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 246,783 | $20,014 |
| Annex Advisory Services, LLC | 243,709 | $19,765 |
| Russell Investments Group, Ltd. | 202,170 | $16,396 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 196,328 | $15,922 |
| RICE HALL JAMES & ASSOCIATES, LLC | 182,276 | $14,783 |
| RENAISSANCE TECHNOLOGIES LLC | 180,502 | $14,639 |
| Qube Research & Technologies Ltd | 177,054 | $14,359 |
| DF DENT & CO INC | 174,178 | $14,126 |
| Bank of New York Mellon Corp | 170,793 | $13,851 |
| Rockefeller Capital Management L.P. | 165,556 | $13,427 |
| AMERIPRISE FINANCIAL INC | 164,279 | $13,323 |
| Summit Creek Advisors LLC | 149,996 | $12,165 |
| TWO SIGMA INVESTMENTS, LP | 143,308 | $11,622 |
| COMERICA BANK | 133,243 | $10,806 |
| MILLENNIUM MANAGEMENT LLC | 131,931 | $10,700 |
| BANK OF AMERICA CORP /DE/ | 129,598 | $10,510 |
| BAHL & GAYNOR INC | 124,793 | $10,121 |
| Grandeur Peak Global Advisors, LLC | 121,048 | $9,817 |
| OBERWEIS ASSET MANAGEMENT INC/ | 116,301 | $9,432 |
| Invesco Ltd. | 115,631 | $9,378 |
| PRINCIPAL FINANCIAL GROUP INC | 112,966 | $9,162 |
| CRAWFORD INVESTMENT COUNSEL INC | 109,832 | $8,907 |
| SEI INVESTMENTS CO | 104,546 | $8,479 |
| TUDOR INVESTMENT CORP ET AL | 93,422 | $7,577 |
| Thrivent Financial for Lutherans | 88,950 | $7 |
| OSAIC HOLDINGS, INC. | 88,523 | $7,179 |
| SEGALL BRYANT & HAMILL, LLC | 80,242 | $6,508 |
| JPMORGAN CHASE & CO | 79,487 | $6,446 |
| ProShare Advisors LLC | 74,110 | $6,010 |
| Public Sector Pension Investment Board | 72,194 | $5,855 |
| DIVIDEND ASSETS CAPITAL, LLC | 72,186 | $5,854 |
| Aptus Capital Advisors, LLC | 67,783 | $5,497 |
| CBOE Vest Financial, LLC | 67,450 | $5,470 |
| Bridge City Capital, LLC | 66,623 | $5,403 |
| RHUMBLINE ADVISERS | 65,128 | $5,282 |
| STIFEL FINANCIAL CORP | 63,258 | $5,130 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC | 62,909 | $5,102 |
| ExodusPoint Capital Management, LP | 62,290 | $5,052 |
| AWM Investment Company, Inc. | 62,000 | $5,028 |
| Trexquant Investment LP | 61,571 | $4,993 |
| ALGERT GLOBAL LLC | 59,346 | $5 |
| FEDERATED HERMES, INC. | 58,849 | $4,773 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | 58,476 | $4,742 |
| SG Americas Securities, LLC | 55,809 | $5 |
| Legal & General Group Plc | 52,102 | $4,225 |
| MARSHALL WACE, LLP | 48,228 | $3,911 |
| CHATHAM CAPITAL GROUP, INC. | 48,045 | $3,896 |
| AMERICAN CENTURY COMPANIES INC | 45,568 | $3,696 |
| LAZARD ASSET MANAGEMENT LLC | 45,406 | $3,682 |
| Nuveen, LLC | 44,788 | $3,632 |
| BESSEMER GROUP INC | 43,805 | $4 |
| WELLS FARGO & COMPANY/MN | 42,821 | $3,473 |
| D. E. Shaw & Co., Inc. | 42,803 | $3,471 |
| Swiss National Bank | 42,500 | $3,447 |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 40,000 | $3,244 |
| UBS Group AG | 39,173 | $3,177 |
| F/M Investments LLC | 35,534 | $2,882 |
| Linden Thomas Advisory Services, LLC | 35,045 | $2,842 |
| TWO SIGMA ADVISERS, LP | 33,797 | $2,741 |
| BARCLAYS PLC | 32,558 | $2,640 |
| UBS ASSET MANAGEMENT AMERICAS INC | 31,397 | $2,546 |
| Cetera Investment Advisers | 31,356 | $2,543 |
| JOHNSON INVESTMENT COUNSEL INC | 29,717 | $2,410 |
| PERKINS CAPITAL MANAGEMENT INC | 28,900 | $2,344 |
| RAYMOND JAMES FINANCIAL INC | 28,476 | $2,309 |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 28,042 | $2,274 |
| Y-Intercept (Hong Kong) Ltd | 27,694 | $2,246 |
| AlphaQuest LLC | 27,521 | $2,232 |
| Hennion & Walsh Asset Management, Inc. | 26,695 | $2,165 |
| ALLIANCEBERNSTEIN L.P. | 26,124 | $2,119 |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 25,815 | $2,094 |
| Squarepoint Ops LLC | 25,731 | $2,087 |
| NATIONS FINANCIAL GROUP INC, /IA/ /ADV | 25,392 | $2,059 |
| Susquehanna Portfolio Strategies, LLC | 24,442 | $1,982 |
| Riverwater Partners LLC | 21,363 | $1,733 |
| Engineers Gate Manager LP | 21,298 | $1,727 |
| GSA CAPITAL PARTNERS LLP | 21,234 | $2 |
| NEW YORK STATE COMMON RETIREMENT FUND | 20,664 | $1,676 |
| Values First Advisors, Inc. | 20,311 | $1,647 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 20,189 | $1,637 |
| PRUDENTIAL FINANCIAL INC | 19,458 | $1,578 |
| Voya Investment Management LLC | 19,069 | $1,546 |
| 195 other institutions | 940,371 | $69,709 |