| THAMES CAPITAL MANAGEMENT LLC | 60,830 | $9,677,445 | 6.81% |
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| Telemark Asset Management, LLC | 160,000 | $25,454,400 | 3.78% |
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| Conestoga Capital Advisors, LLC | 1,417,964 | $225,583,893 | 3.78% |
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| GENEVA CAPITAL MANAGEMENT LLC | 656,127 | $104,383,246 | 2.13% |
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| Aubrey Capital Management Ltd | 17,000 | $2,703,633 | 1.57% |
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| Yorktown Management & Research Co Inc | 8,300 | $1,320,447 | 1.42% |
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| WASATCH ADVISORS LP | 1,038,542 | $165,221,647 | 1.03% |
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| MOODY ALDRICH PARTNERS LLC | 28,802 | $4,582,110 | 0.92% |
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| Aristotle Capital Boston, LLC | 178,707 | $28,430,497 | 0.88% |
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| SANDLER CAPITAL MANAGEMENT | 60,267 | $9,587,877 | 0.87% |
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| Knowledge Leaders Capital, LLC | 3,644 | $579,724 | 0.77% |
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| Champlain Investment Partners, LLC | 682,547 | $108,586,402 | 0.68% |
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| EXCHANGE TRADED CONCEPTS, LLC | 150,969 | $24,017,658 | 0.66% |
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| GW&K Investment Management, LLC | 410,031 | $65,232 | 0.63% |
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| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1,059,770 | $168,598,809 | 0.59% |
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| TRANSATLANTIQUE PRIVATE WEALTH LLC | 5,870 | $923 | 0.51% |
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| ESSEX INVESTMENT MANAGEMENT CO LLC | 19,081 | $3,035,596 | 0.44% |
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| FRED ALGER MANAGEMENT, LLC | 504,159 | $80,206,655 | 0.43% |
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| Ziegler Capital Management, LLC | 60,948 | $9,696,616 | 0.38% |
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| Eventide Asset Management | 125,954 | $20,038,022 | 0.37% |
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