| LEWIS CAPITAL MANAGEMENT, LLC | 178,586 | $2,684,144 | 4.18% |
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| Trigran Investments, Inc. | 1,273,768 | $19,144,733 | 2.04% |
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| SUMMIT PARTNERS L P | 3,888,206 | $58,439,736 | 2.00% |
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| Bridge City Capital, LLC | 242,222 | $3,640,597 | 1.84% |
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| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. | 1,160,211 | $17,437,977 | 1.12% |
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| Verity Asset Management, Inc. | 91,666 | $1,377,740 | 1.02% |
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| Mesirow Financial Investment Management, Inc. | 14,511 | $218,100 | 0.95% |
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| Samson Rock Capital LLP | 109,448 | $1,645,003 | 0.53% |
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| IQ EQ FUND MANAGEMENT (IRELAND) Ltd | 162,336 | $2,439,910 | 0.50% |
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| RICE HALL JAMES & ASSOCIATES, LLC | 437,713 | $6,578,826 | 0.42% |
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| PARADIGM CAPITAL MANAGEMENT INC/NY | 427,800 | $6,429,834 | 0.37% |
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| AtonRa Partners | 11,376 | $170,981 | 0.36% |
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| PEREGRINE CAPITAL MANAGEMENT LLC | 790,398 | $11,879,682 | 0.36% |
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| OBERWEIS ASSET MANAGEMENT INC/ | 215,000 | $3,231,450 | 0.34% |
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| Hillsdale Investment Management Inc. | 240,200 | $3,610,206 | 0.33% |
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| ALGERT GLOBAL LLC | 412,782 | $6,204 | 0.29% |
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| Teton Advisors, Inc. | 51,000 | $766,530 | 0.24% |
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| DEPRINCE RACE & ZOLLO INC | 556,318 | $8,361,459 | 0.20% |
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| Gallacher Capital Management LLC | 18,887 | $283,878 | 0.18% |
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| Legato Capital Management LLC | 80,376 | $1,208,051 | 0.18% |
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