| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 2,902,612 | 6.70 | $40,752,672 | 30-Sep-09 | | EAGLE ASSET MANAGEMENT, INC. | 2,368,057 | 5.47 | $33,247,520 | 30-Sep-09 | | WADDELL & REED FINANCIAL INC. | 1,973,729 | 4.56 | $27,711,155 | 30-Sep-09 | | LORD ABBETT & CO | 1,918,127 | 4.43 | $26,930,503 | 30-Sep-09 | | ARTISAN PARTNERS LIMITED PARTNERSHIP | 1,888,100 | 4.36 | $26,508,924 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,884,662 | 4.35 | $26,460,654 | 30-Sep-09 | | FRIESS ASSOCIATES INC | 1,790,115 | 4.13 | $25,133,214 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 1,695,170 | 3.92 | $23,800,186 | 30-Sep-09 | | WESTFIELD CAPITAL MANAGEMENT COMPANY | 1,690,079 | 3.90 | $23,728,709 | 30-Sep-09 | | WALL STREET ASSOCIATES | 1,067,613 | 2.47 | $14,989,286 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | LORD ABBETT SMALL CAP BLEND FUND | 791,594 | 1.83 | $11,240,634 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 634,058 | 1.46 | $8,902,174 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 562,035 | 1.30 | $7,368,278 | 31-Oct-09 | | WADDELL & REED ADVISORS FDS-SMALL CAP FUND | 541,279 | 1.25 | $8,178,725 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 523,809 | 1.21 | $7,914,753 | 30-Jun-09 | | ARTISAN SMALL CAP FUND | 501,300 | 1.16 | $7,574,643 | 30-Jun-09 | | CONSULTING GROUP CAPITAL MARKETS-SMALL CAP GROWTH INV | 469,300 | 1.08 | $6,035,198 | 31-Aug-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 410,734 | .95 | $6,206,190 | 30-Jun-09 | | FEDERATED KAUFMANN SMALL CAP FUND | 409,200 | .95 | $5,810,640 | 31-Jul-09 | | LORD ABBETT DEVELOPING GROWTH FUND | 385,907 | .89 | $5,479,879 | 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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