| FIRST WILSHIRE SECURITIES MANAGEMENT INC | 1,971,041 | $6,780 | 2.32% |
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| NEEDHAM INVESTMENT MANAGEMENT LLC | 2,160,450 | $7,431,948 | 1.22% |
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| Pacific Ridge Capital Partners, LLC | 1,210,096 | $4,162,730 | 0.95% |
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| WHITE PINE CAPITAL LLC | 410,390 | $1,411,742 | 0.53% |
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| Keystone Wealth Services, LLC | 148,686 | $511,480 | 0.19% |
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| Millrace Asset Group, Inc. | 44,046 | $152 | 0.16% |
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| Portolan Capital Management | 510,908 | $1,757,524 | 0.16% |
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| PRINCETON CAPITAL MANAGEMENT LLC | 97,604 | $335,758 | 0.14% |
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| Granahan Investment Management | 1,288,139 | $4,431,198 | 0.14% |
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| SYSTEMATIC FINANCIAL MANAGEMENT LP | 989,336 | $3,403,317 | 0.11% |
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| Herald Investment Management Ltd | 150,000 | $516,000 | 0.10% |
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| Foundry Partners, LLC | 279,805 | $962,529 | 0.06% |
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| GSA CAPITAL PARTNERS LLP | 165,970 | $571 | 0.06% |
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| Park Edge Advisors, LLC | 47,933 | $164,890 | 0.06% |
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| KENNEDY CAPITAL MANAGEMENT LLC | 644,258 | $2,216,248 | 0.05% |
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| ROYCE & ASSOCIATES LP | 1,099,809 | $3,783,343 | 0.04% |
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| Arcadia Wealth Management, LLC | 13,366 | $45,980 | 0.03% |
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| Morling Financial Advisors, LLC | 10,000 | $34,400 | 0.03% |
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| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 403,625 | $1,388,470 | 0.03% |
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| XTX Topco Ltd | 44,568 | $153,314 | 0.03% |
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