| R.P. Boggs & Co. | 59,040 | $5,509,613 | 4.39% |
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| Conestoga Capital Advisors, LLC | 2,414,257 | $225,298,498 | 3.58% |
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| GENEVA CAPITAL MANAGEMENT LLC | 1,410,674 | $131,644,086 | 2.60% |
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| ROFFMAN MILLER ASSOCIATES INC /PA/ | 314,946 | $29,390,767 | 2.21% |
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| Laurus Investment Counsel Inc. | 30,065 | $3,718,068 | 1.33% |
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| EULAV Asset Management | 370,500 | $34,575,060 | 1.29% |
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| Pier Capital, LLC | 94,495 | $8,818,273 | 1.26% |
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| RIVERBRIDGE PARTNERS LLC | 1,062,679 | $99,169,159 | 1.25% |
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| Montanaro Asset Management Ltd | 80,000 | $7,465,600 | 1.18% |
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| EMERALD MUTUAL FUND ADVISERS TRUST | 232,393 | $21,686,915 | 1.18% |
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| EMERALD ADVISERS, LLC | 281,643 | $26,282,925 | 1.15% |
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| KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 4,277,177 | $399,146,189 | 1.12% |
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| Kingfisher Capital LLC | 34,302 | $3,201 | 0.83% |
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| Bridge City Capital, LLC | 18,345 | $1,711,955 | 0.81% |
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| LRT Capital Management, LLC | 11,552 | $1,072,372 | 0.79% |
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| RK Capital | 30,400 | $2,836,928 | 0.61% |
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| GW&K Investment Management, LLC | 613,930 | $57,292 | 0.54% |
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| Thematics Asset Management | 120,000 | $11,198,400 | 0.54% |
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| TimesSquare Capital Management, LLC | 400,140 | $37,341 | 0.54% |
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| SANDLER CAPITAL MANAGEMENT | 63,598 | $5,934,965 | 0.49% |
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