| AWM Investment Company, Inc. | 452,115 | $13,002,827 | 1.76% |
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| Prosight Management, LP | 200,216 | $5,758,212 | 1.72% |
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| Brown Capital Management | 2,593,768 | $74,596,768 | 1.51% |
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| Granahan Investment Management | 998,670 | $28,721,749 | 1.15% |
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| BRAIDWELL LP | 1,107,770 | $31,859,465 | 1.00% |
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| FORMULA GROWTH LTD | 85,620 | $2,462,431 | 0.90% |
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| Intrinsic Edge Capital Management LLC | 305,238 | $8,778,645 | 0.80% |
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| Soleus Capital Management, L.P. | 309,500 | $8,901,220 | 0.78% |
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| SG Capital Management LLC | 159,307 | $4,581,669 | 0.77% |
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| Portolan Capital Management | 185,329 | $5,330,062 | 0.44% |
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| NEXT CENTURY GROWTH INVESTORS LLC | 157,746 | $4,536,774 | 0.38% |
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| RIVERBRIDGE PARTNERS LLC | 458,095 | $13,174,814 | 0.18% |
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| PARADIGM CAPITAL MANAGEMENT INC/NY | 134,400 | $3,865,344 | 0.18% |
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| HARBOR CAPITAL ADVISORS, INC. | 67,057 | $1,929 | 0.15% |
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| ALEXANDER LABRUNERIE & CO., INC. | 9,176 | $263,902 | 0.14% |
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| Triodos Investment Management BV | 41,500 | $1,193,540 | 0.10% |
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| EntryPoint Capital, LLC | 2,066 | $59,418 | 0.09% |
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| OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) | 48,097 | $1,383,270 | 0.09% |
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| WASATCH ADVISORS LP | 535,296 | $15,395,113 | 0.08% |
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| Divisadero Street Capital Management, LP | 17,864 | $513,769 | 0.08% |
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