| Millrace Asset Group, Inc. | 115,704 | $2,305 | 2.85% |
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| AWM Investment Company, Inc. | 516,696 | $10,292,584 | 1.52% |
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| BCGM Wealth Management, LLC | 121,833 | $2,426,913 | 1.12% |
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| Granahan Investment Management | 1,446,054 | $28,805,396 | 1.03% |
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| Hood River Capital Management LLC | 1,148,112 | $22,870,391 | 0.73% |
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| Skylands Capital, LLC | 176,440 | $3,514,685 | 0.53% |
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| Soltis Investment Advisors LLC | 104,783 | $2,087,277 | 0.27% |
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| PERRITT CAPITAL MANAGEMENT INC | 20,000 | $398,400 | 0.23% |
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| CABOT WEALTH MANAGEMENT INC | 58,529 | $1,166 | 0.18% |
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| KORNITZER CAPITAL MANAGEMENT INC /KS | 323,254 | $6,439,220 | 0.13% |
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| CONNORS INVESTOR SERVICES INC | 48,755 | $966 | 0.12% |
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| WASATCH ADVISORS LP | 854,726 | $17,026,142 | 0.11% |
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| GSA CAPITAL PARTNERS LLP | 59,680 | $1,189 | 0.10% |
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| SG Capital Management LLC | 13,553 | $269,976 | 0.10% |
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| MOODY NATIONAL BANK TRUST DIVISION | 51,708 | $1,030,023 | 0.07% |
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| MITCHELL MCLEOD PUGH & WILLIAMS INC | 10,000 | $199,200 | 0.06% |
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| DENALI ADVISORS LLC | 8,300 | $165,336 | 0.06% |
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| Petrus Trust Company, LTA | 21,367 | $425,631 | 0.05% |
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| Hook Mill Capital Partners, LP | 9,136 | $181,990 | 0.04% |
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| Knights of Columbus Asset Advisors LLC | 19,087 | $380,213 | 0.04% |
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