| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | MAVERICK CAPITAL LTD. | 2,098,612 | 5.89 | $62,643,568 | 30-Sep-09 | | ARTISAN PARTNERS LIMITED PARTNERSHIP | 1,327,200 | 3.73 | $39,616,920 | 30-Sep-09 | | VINIK ASSET MANAGEMENT, L.P. | 1,029,200 | 2.89 | $30,721,620 | 30-Sep-09 | | BROOKSIDE CAPITAL MANAGEMENT, LLC | 970,304 | 2.73 | $28,963,574 | 30-Sep-09 | | SCHRODER INVESTMENT MANAGEMENT GROUP | 732,800 | 2.06 | $21,874,080 | 30-Sep-09 | | Calamos Advisors LLC | 700,000 | 1.97 | $20,895,000 | 30-Sep-09 | | DRIEHAUS CAPITAL MANAGEMENT, INC. | 653,531 | 1.84 | $19,507,900 | 30-Sep-09 | | Susquehanna International Group, LLP | 635,399 | 1.78 | $18,966,660 | 30-Sep-09 | | FMR LLC | 635,210 | 1.78 | $18,961,018 | 30-Sep-09 | | TCW GROUP, INC. (THE) | 634,873 | 1.78 | $18,950,959 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | CALAMOS GROWTH FUND | 700,000 | 1.97 | $20,895,000 | 30-Sep-09 | | ARTISAN MID-CAP FUND | 531,500 | 1.49 | $8,445,535 | 30-Jun-09 | | FIDELITY GROWTH COMPANY FUND | 475,000 | 1.33 | $14,178,750 | 30-Sep-09 | | DRIEHAUS EMERGING MARKETS GROWTH FUND | 349,240 | .98 | $5,549,423 | 30-Jun-09 | | LORD ABBETT DEVELOPING GROWTH FUND | 203,694 | .57 | $3,259,104 | 31-Jul-09 | | Wells Fargo Advantage Small Cap Opportunities Fd | 182,000 | .51 | $5,432,700 | 30-Sep-09 | | TCW SMALL CAP GROWTH FUND | 166,553 | .47 | $2,664,848 | 31-Jul-09 | | Oberweis China Opportunities Fund | 140,800 | .40 | $2,237,312 | 30-Jun-09 | | TIFF MULTI-ASSET FUND | 135,200 | .38 | $2,148,328 | 30-Jun-09 | | AMERICAN CENTURY NEW OPPORTUNITIES II FUND | 116,600 | .33 | $3,480,510 | 30-Sep-09 |
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*
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Value shown is computed using the security's price on the report date given.
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