| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 1,553,908 | 4.00 | $12,804,201 | 30-Sep-09 | | FMR LLC | 1,549,500 | 3.99 | $12,767,880 | 30-Sep-09 | | TPG Capital, L.P. | 1,383,969 | 3.56 | $11,403,904 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 785,401 | 2.02 | $6,471,704 | 30-Sep-09 | | BAKER BROTHERS ADVISORS, LLC | 5,563,615 | 14.33 | $45,844,187 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 773,721 | 1.99 | $6,375,461 | 30-Sep-09 | | FIL LTD | 496,625 | 1.28 | $4,092,190 | 30-Sep-09 | | STATE STREET CORPORATION | 483,998 | 1.25 | $3,988,143 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 449,500 | 1.16 | $3,703,880 | 30-Sep-09 | | MORGAN STANLEY | 264,699 | .68 | $2,181,119 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VARIABLE INSURANCE PRODUCTS FD II-CONTRAFUND PORTFOLIO | 675,818 | 1.74 | $5,568,740 | 30-Sep-09 | | FIDELITY BALANCED FUND | 505,871 | 1.30 | $4,168,377 | 30-Sep-09 | | PRICE (T.ROWE) HEALTH SCIENCES FUND | 500,000 | 1.29 | $2,015,000 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 383,240 | .99 | $1,517,630 | 30-Apr-09 | | ISHARES NASDAQ BIOTECHNOLOGY INDEX FUND | 330,992 | .85 | $2,955,758 | 31-Oct-09 | | ISHARES RUSSELL 2000 INDEX FD | 314,533 | .81 | $2,591,751 | 30-Sep-09 | | Fidelity Series All Sector Equity Fund | 293,371 | .76 | $2,417,377 | 30-Sep-09 | | SEI INSTITUTIONAL INVESTMENT TR-SMALL/MID CAP EQUITY FUN | 275,600 | .71 | $1,107,912 | 31-May-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 233,393 | .60 | $940,573 | 30-Jun-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 229,794 | .59 | $926,069 | 30-Jun-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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