| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 1,693,475 | 7.69 | $45,300,456 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,538,943 | 6.99 | $41,166,725 | 30-Sep-09 | | NEUBERGER BERMAN GROUP, LLC | 1,464,794 | 6.65 | $39,183,239 | 30-Sep-09 | | WASATCH ADVISORS INC | 1,127,495 | 5.12 | $30,160,491 | 30-Sep-09 | | FMR LLC | 1,097,027 | 4.98 | $29,345,472 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 937,901 | 4.26 | $25,088,851 | 30-Sep-09 | | Capital World Investors | 834,700 | 3.79 | $22,328,225 | 30-Sep-09 | | GILDER, GAGNON, HOWE & CO. | 811,050 | 3.68 | $21,695,587 | 30-Sep-09 | | RIVERBRIDGE PARTNERS LLC | 549,657 | 2.50 | $14,703,324 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 2,418,474 | 10.98 | $64,694,179 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | NEUBERGER & BERMAN GENESIS FUND | 1,090,300 | 4.95 | $29,165,525 | 30-Sep-09 | | Fidelity Small Cap Value Fund | 886,727 | 4.03 | $23,737,681 | 31-Jul-09 | | SMALLCAP WORLD FUND | 834,700 | 3.79 | $17,144,738 | 30-Jun-09 | | BROWN CAPITAL MANAGEMENT SMALL COMPANY FUND | 819,257 | 3.72 | $16,827,538 | 30-Jun-09 | | WASATCH SMALL CAP GROWTH FUND | 542,252 | 2.46 | $11,137,856 | 30-Jun-09 | | Manning & Napier Maryland Life Sciences Series Fund | 480,000 | 2.18 | $9,859,200 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 321,910 | 1.46 | $8,611,092 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 286,247 | 1.30 | $6,532,156 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 266,802 | 1.21 | $5,480,113 | 30-Jun-09 | | FIDELITY SMALL CAP DISCOVERY FUND | 210,300 | .95 | $5,629,731 | 31-Jul-09 |
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Value shown is computed using the security's price on the report date given.
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