| Rovida Advisors Inc. | 1,773,655 | $26,622,562 | 10.12% |
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| Firsthand Capital Management, Inc. | 310,000 | $4,656,200 | 6.71% |
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| Ursa Fund Management, LLC | 73,000 | $1,096,460 | 5.38% |
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| S Squared Technology, LLC | 466,461 | $7,006,244 | 3.78% |
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| ARS Investment Partners, LLC | 1,383,731 | $20,783,640 | 2.58% |
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| Register Financial Advisors LLC | 217,460 | $3,266,249 | 2.39% |
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| MANAGED ASSET PORTFOLIOS, LLC | 1,006,158 | $15,112,493 | 2.32% |
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| COOPER CREEK PARTNERS MANAGEMENT LLC | 2,413,270 | $36,247 | 2.06% |
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| EMERALD ADVISERS, LLC | 1,864,494 | $28,004,700 | 1.36% |
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| EMERALD MUTUAL FUND ADVISERS TRUST | 1,483,902 | $22,288,208 | 1.34% |
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| Archon Capital Management LLC | 317,461 | $4,768,264 | 1.25% |
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| ESSEX INVESTMENT MANAGEMENT CO LLC | 451,130 | $6,775,973 | 1.11% |
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| Stephens Investment Management Group LLC | 4,421,154 | $66,405,733 | 1.09% |
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| Granite Investment Partners, LLC | 1,339,783 | $20,123,541 | 0.84% |
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| Portolan Capital Management | 538,284 | $8,085,026 | 0.76% |
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| ARK Investment Management | 6,265,604 | $94,109,372 | 0.72% |
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| Bouvel Investment Partners, LLC | 86,689 | $1,302,061 | 0.70% |
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| AMERICAN CAPITAL MANAGEMENT INC | 1,215,214 | $18,252,514 | 0.70% |
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| Canal Insurance CO | 157,000 | $2,358 | 0.68% |
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| BARD ASSOCIATES INC | 108,548 | $1,630,391 | 0.68% |
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