| PERKINS CAPITAL MANAGEMENT INC | 909,080 | $2,527 | 2.50% |
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| AWM Investment Company, Inc. | 2,596,156 | $7,217,314 | 1.06% |
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| Pacific Ridge Capital Partners, LLC | 1,603,497 | $4,457,722 | 1.03% |
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| PERRITT CAPITAL MANAGEMENT INC | 361,113 | $1,003,894 | 0.58% |
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| EAM Investors, LLC | 630,252 | $1,752,101 | 0.34% |
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| ESSEX INVESTMENT MANAGEMENT CO LLC | 455,584 | $1,266,524 | 0.21% |
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| NAVELLIER & ASSOCIATES INC | 303,565 | $843,911 | 0.14% |
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| THOMPSON DAVIS & CO., INC. | 28,900 | $80,342 | 0.10% |
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| OCCUDO QUANTITATIVE STRATEGIES LP | 200,180 | $556,500 | 0.07% |
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| EVERETT HARRIS & CO /CA/ | 1,421,238 | $3,951,042 | 0.06% |
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| ROYCE & ASSOCIATES LP | 2,024,861 | $5,629,114 | 0.06% |
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| FREEDOM WEALTH ALLIANCE, LLC | 10,273 | $28,559 | 0.05% |
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| BERKSHIRE ASSET MANAGEMENT LLC/PA | 144,664 | $402,166 | 0.02% |
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| KING LUTHER CAPITAL MANAGEMENT CORP | 1,029,252 | $2,861,321 | 0.02% |
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| Cutter & CO Brokerage, Inc. | 16,350 | $45,453 | 0.01% |
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| Legato Capital Management LLC | 24,625 | $68,457 | 0.01% |
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| CreativeOne Wealth, LLC | 44,093 | $123 | 0.01% |
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| PRELUDE CAPITAL MANAGEMENT, LLC | 41,700 | $115,926 | 0.01% |
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| MACROVIEW INVESTMENT MANAGEMENT LLC | 1,824 | $5,071 | 0.01% |
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| Renaissance Technologies | 1,259,744 | $3,502 | 0.01% |
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