| Kanen Wealth Management LLC | 3,161,847 | $13,437,850 | 8.96% |
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| OAKTOP CAPITAL MANAGEMENT II, L.P. | 3,341,759 | $14,202,476 | 2.16% |
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| Cannell Capital | 1,985,332 | $8,437,661 | 1.68% |
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| Trellus Management Company, LLC | 180,000 | $765,000 | 0.94% |
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| North Star Investment Management Corp. | 1,604,477 | $6,819,027 | 0.55% |
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| Portolan Capital Management | 788,505 | $3,351,146 | 0.30% |
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| ESSEX INVESTMENT MANAGEMENT CO LLC | 421,533 | $1,791,515 | 0.25% |
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| ISTHMUS PARTNERS, LLC | 283,673 | $1,205,610 | 0.16% |
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| INNOVIS ASSET MANAGEMENT LLC | 91,464 | $388,722 | 0.14% |
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| Intellectus Partners, LLC | 104,206 | $442,876 | 0.13% |
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| Polar Asset Management Partners Inc. | 1,692,551 | $7,193,342 | 0.13% |
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| PRELUDE CAPITAL MANAGEMENT, LLC | 460,970 | $1,959,123 | 0.13% |
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| Hodges Capital Management Inc. | 314,690 | $1,704 | 0.10% |
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| Legato Capital Management LLC | 162,400 | $690,200 | 0.09% |
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| XTX Topco Ltd | 114,050 | $484,713 | 0.09% |
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| KENNEDY CAPITAL MANAGEMENT LLC | 839,902 | $3,569,584 | 0.08% |
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| RBF Capital, LLC | 300,000 | $1,275,000 | 0.08% |
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| State of Wyoming | 60,473 | $257,010 | 0.08% |
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| GSA CAPITAL PARTNERS LLP | 165,932 | $705 | 0.07% |
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| GREENWOOD CAPITAL ASSOCIATES LLC | 102,765 | $436,751 | 0.06% |
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