| Brown Capital Management | 7,914,777 | $108,511,593 | 1.66% |
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| Roubaix Capital, LLC | 150,129 | $2,058,269 | 1.52% |
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| CADIAN CAPITAL MANAGEMENT, LP | 2,656,739 | $36,423,892 | 1.47% |
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| Bullseye Asset Management LLC | 133,520 | $1,831 | 1.02% |
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| MARATHON CAPITAL MANAGEMENT | 176,800 | $2,423,928 | 0.61% |
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| Thematics Asset Management | 627,000 | $8,596,170 | 0.42% |
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| NEEDHAM INVESTMENT MANAGEMENT LLC | 165,000 | $2,262,150 | 0.38% |
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| Penbrook Management LLC | 34,930 | $478,890 | 0.35% |
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| Granahan Investment Management | 629,968 | $8,636,861 | 0.31% |
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| CONNORS INVESTOR SERVICES INC | 172,867 | $2,364 | 0.29% |
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| SANDLER CAPITAL MANAGEMENT | 196,300 | $2,691,273 | 0.28% |
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| FRED ALGER MANAGEMENT, LLC | 2,391,458 | $32,786,889 | 0.19% |
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| INNOVIS ASSET MANAGEMENT LLC | 35,410 | $485,472 | 0.19% |
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| Skylands Capital, LLC | 84,950 | $1,164,665 | 0.18% |
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| Impax Asset Management Group plc | 5,198,298 | $70,755,940 | 0.16% |
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| PERKINS CAPITAL MANAGEMENT INC | 11,500 | $158 | 0.16% |
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| GW&K Investment Management, LLC | 886,934 | $12,160 | 0.12% |
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| GREENWOOD CAPITAL ASSOCIATES LLC | 32,894 | $450,977 | 0.07% |
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| Campbell & CO Investment Adviser LLC | 24,891 | $341,256 | 0.04% |
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| DF DENT & CO INC | 176,248 | $2,416,365 | 0.04% |
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