| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 3,255,830 | 7.37 | $75,535,256 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,914,996 | 6.60 | $67,627,907 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 2,900,000 | 6.57 | $67,280,000 | 30-Sep-09 | | Generation Investment Management LLP | 2,677,458 | 6.06 | $62,117,025 | 30-Sep-09 | | WADDELL & REED FINANCIAL INC. | 2,603,861 | 5.90 | $60,409,575 | 30-Sep-09 | | ATLANTA CAPITAL MANAGEMENT COMPANY LLC | 2,440,869 | 5.53 | $56,628,160 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 1,947,941 | 4.41 | $45,192,231 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,906,892 | 4.32 | $44,239,894 | 30-Sep-09 | | ASTER INVESTMENT MANAGEMENT COMPANY INC | 1,423,998 | 3.22 | $33,036,753 | 30-Sep-09 | | NEUBERGER BERMAN GROUP, LLC | 5,263,892 | 11.92 | $122,122,294 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | NEUBERGER & BERMAN GENESIS FUND | 4,369,503 | 9.89 | $101,372,469 | 30-Sep-09 | | COLUMBIA ACORN FD | 1,800,000 | 4.08 | $27,990,000 | 30-Jun-09 | | MERIDIAN GROWTH FUND | 1,367,000 | 3.10 | $31,714,400 | 30-Sep-09 | | SENTINEL SMALL COMPANY FUND | 735,000 | 1.66 | $17,052,000 | 30-Sep-09 | | PENNSYLVANIA MUTUAL FUND INC | 674,291 | 1.53 | $10,485,225 | 30-Jun-09 | | BROWN CAPITAL MANAGEMENT SMALL COMPANY FUND | 656,107 | 1.49 | $10,202,463 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 644,038 | 1.46 | $14,941,681 | 30-Sep-09 | | Wanger Advisor Trust-Wanger USA, Variable Series | 575,000 | 1.30 | $8,941,250 | 30-Jun-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 568,049 | 1.29 | $12,605,007 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 528,613 | 1.20 | $8,219,932 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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