| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Capital World Investors | 10,435,000 | 6.32 | $196,386,700 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 9,637,380 | 5.84 | $181,375,491 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 8,665,803 | 5.25 | $163,090,412 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 7,009,717 | 4.25 | $131,922,873 | 30-Sep-09 | | Taube Hodson Stonex Partners Limited | 6,786,056 | 4.11 | $127,713,573 | 30-Sep-09 | | ALGER (FRED) MANAGEMENT INC | 4,402,301 | 2.67 | $82,851,304 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 4,176,150 | 2.53 | $78,595,143 | 30-Sep-09 | | STATE STREET CORPORATION | 4,143,880 | 2.51 | $77,987,821 | 30-Sep-09 | | GILDER, GAGNON, HOWE & CO. | 3,545,989 | 2.15 | $66,735,512 | 30-Sep-09 | | FMR LLC | 24,386,915 | 14.78 | $458,961,740 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY GROWTH COMPANY FUND | 11,709,036 | 7.10 | $220,364,057 | 30-Sep-09 | | PRICE (T.ROWE) MID CAP GROWTH FUND | 5,000,000 | 3.03 | $94,100,000 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 2,391,820 | 1.45 | $45,014,052 | 30-Sep-09 | | FIDELITY OTC PORTFOLIO | 2,128,950 | 1.29 | $40,066,839 | 30-Sep-09 | | FIDELITY CONTRAFUND INC | 2,037,252 | 1.23 | $38,341,082 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 1,935,283 | 1.17 | $5,554,262 | 30-Jun-09 | | First Trust NYSE Arca Biotechnology Index Fund | 1,868,934 | 1.13 | $5,363,840 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 1,653,610 | 1.00 | $4,745,860 | 30-Jun-09 | | FIDELITY SELECT PORTFOLIOS - BIOTECHNOLOGY | 1,517,459 | .92 | $28,558,578 | 30-Sep-09 | | Powershares Exhg Traded Fd-Dynamic Biotechnology & Genome Po | 1,497,895 | .91 | $21,419,898 | 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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