| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PRIMECAP MANAGEMENT COMPANY | 8,883,207 | 8.57 | $326,457,857 | 30-Sep-09 | | Clearbridge Advisors, LLC | 5,909,082 | 5.70 | $217,158,763 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 4,347,752 | 4.20 | $159,779,886 | 30-Sep-09 | | WADDELL & REED FINANCIAL INC. | 4,001,530 | 3.86 | $147,056,227 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 3,375,766 | 3.26 | $124,059,400 | 30-Sep-09 | | ARTISAN PARTNERS LIMITED PARTNERSHIP | 3,046,500 | 2.94 | $111,958,875 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 2,771,800 | 2.67 | $101,863,650 | 30-Sep-09 | | MUNDER CAPITAL MANAGEMENT, INC. | 2,342,073 | 2.26 | $86,071,182 | 30-Sep-09 | | FMR LLC | 14,140,732 | 13.64 | $519,671,901 | 30-Sep-09 | | STATE STREET CORPORATION | 2,029,255 | 1.96 | $74,575,121 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY GROWTH COMPANY FUND | 9,216,131 | 8.89 | $338,692,814 | 30-Sep-09 | | VANGUARD HORIZON FUND-CAPITAL OPPORTUNITY PORTFOLIO | 4,263,900 | 4.11 | $125,358,660 | 30-Jun-09 | | WADDELL & REED ADVISORS FDS-SCIENCE & TECHNOLOGY FUND | 2,641,180 | 2.55 | $77,650,692 | 30-Jun-09 | | PRICE (T.ROWE) MID CAP GROWTH FUND | 2,000,000 | 1.93 | $73,500,000 | 30-Sep-09 | | FIDELITY CONTRAFUND INC | 1,995,000 | 1.93 | $73,316,250 | 30-Sep-09 | | Munder Mid-Cap Core Growth Fund | 1,724,650 | 1.66 | $50,704,710 | 30-Jun-09 | | OPPENHEIMER GLOBAL OPPORTUNITIES FUND | 1,700,000 | 1.64 | $49,980,000 | 30-Jun-09 | | ARTISAN MID-CAP FUND | 1,205,811 | 1.16 | $35,450,843 | 30-Jun-09 | | Legg Mason Partners Aggressive Growth Fd | 1,134,140 | 1.09 | $41,679,645 | 30-Sep-09 | | BUFFALO SMALL CAP FUND | 1,025,400 | .99 | $30,146,760 | 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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