| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Clearbridge Advisors, LLC | 2,145,891 | 9.35 | $221,219,903 | 30-Sep-09 | | BAMCO INC. | 1,430,165 | 6.23 | $147,435,709 | 30-Sep-09 | | GOLDMAN SACHS GROUP INC | 1,128,993 | 4.92 | $116,387,888 | 30-Sep-09 | | VONTOBEL ASSET MANAGEMENT, INC. | 1,029,012 | 4.48 | $106,080,847 | 30-Sep-09 | | MUNDER CAPITAL MANAGEMENT, INC. | 1,014,236 | 4.42 | $104,557,589 | 30-Sep-09 | | WENTWORTH, HAUSER AND VIOLICH | 942,024 | 4.11 | $97,113,254 | 30-Sep-09 | | EARNEST PARTNERS LLC | 841,695 | 3.67 | $86,770,337 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 717,637 | 3.13 | $73,981,198 | 30-Sep-09 | | COLUMBIA PARTNERS, L.L.C, INVESTMENT MANAGEMENT | 595,827 | 2.60 | $61,423,805 | 30-Sep-09 | | Capital World Investors | 2,492,700 | 10.86 | $256,972,443 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | AMERICAN FDS INSURANCE SER-GROWTH FD | 1,197,700 | 5.22 | $123,470,893 | 30-Sep-09 | | Legg Mason Partners Aggressive Growth Fd | 1,163,610 | 5.07 | $119,956,554 | 30-Sep-09 | | Munder Mid-Cap Core Growth Fund | 582,425 | 2.54 | $50,758,338 | 30-Jun-09 | | BARON GROWTH FUND | 545,300 | 2.38 | $47,522,895 | 30-Jun-09 | | SMALLCAP WORLD FUND | 544,205 | 2.37 | $47,427,465 | 30-Jun-09 | | Virtus Opportunities Tr-Virtus Foreign Opportunities Fd | 345,268 | 1.50 | $30,090,106 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 329,040 | 1.43 | $28,284,278 | 31-Jul-09 | | BARON SMALL CAP FUND | 300,000 | 1.31 | $26,145,000 | 30-Jun-09 | | MERIDIAN GROWTH FUND | 276,000 | 1.20 | $28,452,840 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 265,745 | 1.16 | $23,159,676 | 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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