| VILLERE ST DENIS J & CO LLC | 207,809 | $73,736 | 4.38% |
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| FAIRVIEW CAPITAL INVESTMENT MANAGEMENT, LLC | 107,480 | $38,137 | 2.38% |
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| HealthCor Management, L.P. | 99,150 | $35,181 | 2.35% |
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| AMI ASSET MANAGEMENT CORP | 123,761 | $43,914 | 2.29% |
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| Codex Capital, L.L.C. | 10,500 | $3,725,400 | 2.29% |
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| DF DENT & CO INC | 518,761 | $184,072 | 2.12% |
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| MOUNTAIN PACIFIC INVESTMENT ADVISERS INC/ID | 80,170 | $28,447 | 1.86% |
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| Buffington Mohr McNeal | 23,369 | $8,292 | 1.57% |
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| GARRISON BRADFORD & ASSOCIATES INC | 4,200 | $1,490 | 1.45% |
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| Marathon Asset Management Ltd | 280,304 | $99,464 | 1.35% |
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| Bouvel Investment Partners, LLC | 6,190 | $2,196 | 1.34% |
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| Parkman Healthcare Partners LLC | 12,500 | $4,435 | 1.30% |
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| HERON FINANCIAL GROUP, LLC | 6,562 | $2,328 | 1.21% |
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| OSTERWEIS CAPITAL MANAGEMENT INC | 59,140 | $20,985 | 1.15% |
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| SECURITY ASSET MANAGEMENT | 7,212 | $2,559 | 1.10% |
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| MORGENS WATERFALL VINTIADIS & CO INC | 4,700 | $1,668 | 1.05% |
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| Values First Advisors, Inc. | 4,155 | $1,474 | 0.93% |
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| Integral Health Asset Management, LLC | 8,000 | $2,839 | 0.74% |
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| ROWLAND & CO INVESTMENT COUNSEL/ADV | 8,798 | $3,121,794 | 0.72% |
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| DAVIS R M INC | 82,832 | $29,391 | 0.70% |
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