| AMERICAN CAPITAL MANAGEMENT INC | 1,451,538 | $161,890,033 | 6.24% |
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| Heard Capital LLC | 681,272 | $75,982,266 | 5.60% |
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| Aquila Investment Management LLC | 24,000 | $2,676,720 | 2.47% |
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| Redwood Investments, LLC | 149,841 | $16,711,767 | 2.26% |
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| NEXT CENTURY GROWTH INVESTORS LLC | 132,473 | $14,774,713 | 1.61% |
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| Canal Insurance CO | 50,000 | $5,577 | 1.60% |
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| Bouvel Investment Partners, LLC | 24,380 | $2,719,046 | 1.47% |
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| Stephens Investment Management Group LLC | 773,833 | $86,305,595 | 1.42% |
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| EMERALD MUTUAL FUND ADVISERS TRUST | 188,251 | $20,995,634 | 1.27% |
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| EMERALD ADVISERS, LLC | 231,094 | $25,773,914 | 1.25% |
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| Aubrey Capital Management Ltd | 20,000 | $1,980,798 | 1.14% |
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| SITTNER & NELSON, LLC | 17,343 | $1,934,265 | 1.11% |
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| AWM Investment Company, Inc. | 65,208 | $7,272,648 | 1.07% |
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| G2 Investment Partners Management LLC | 33,940 | $3,785,328 | 0.92% |
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| OBERWEIS ASSET MANAGEMENT INC/ | 69,100 | $7,706,723 | 0.82% |
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| Nikko Asset Management Americas, Inc. | 431,529 | $48,089,592 | 0.58% |
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| AlphaCentric Advisors LLC | 9,000 | $1,003,770 | 0.57% |
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| ARK Investment Management | 536,351 | $59,819,227 | 0.46% |
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| CONNORS INVESTOR SERVICES INC | 30,170 | $3,352 | 0.41% |
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| Lisanti Capital Growth, LLC | 20,590 | $2,296,403 | 0.36% |
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