| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Invus Public Equities Advisors, LLC | 2,700,000 | 3.01 | $5,589,000 | 30-Sep-09 | | FMR LLC | 1,466,100 | 1.63 | $3,034,827 | 30-Sep-09 | | Hudson Bay Capital Management LP | 1,461,988 | 1.63 | $3,026,315 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,271,042 | 1.42 | $2,631,056 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 657,453 | .73 | $1,360,927 | 30-Sep-09 | | ORACLE INVESTMENT MANAGEMENT, INC. | 480,897 | .54 | $995,456 | 30-Sep-09 | | INGALLS & SNYDER | 459,000 | .51 | $950,130 | 30-Sep-09 | | TRELLUS MANAGEMENT COMPANY, LLC | 424,399 | .47 | $878,505 | 30-Sep-09 | | WELLS FARGO & COMPANY | 328,023 | .37 | $679,007 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 326,639 | .36 | $676,142 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ELITE GROWTH AND INCOME, THE | 2,650,000 | 2.95 | $5,485,500 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - BIOTECHNOLOGY | 1,398,100 | 1.56 | $1,398,100 | 31-Oct-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 235,293 | .26 | $491,762 | 30-Jun-09 | | VANGUARD INSTITUTIONAL INDEX-INST TOTAL STOCK MARKET IND | 142,858 | .16 | $298,573 | 30-Jun-09 | | BRIDGEWAY FDS INC-ULTRA SMALL COMPANY MARKET FD | 132,555 | .15 | $274,388 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 115,635 | .13 | $241,677 | 30-Jun-09 | | FIDELITY ADVISOR BIOTECHNOLOGY FUND | 68,000 | .08 | $68,000 | 31-Oct-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 57,480 | .06 | $57,480 | 31-Oct-09 | | DFA U.S. Core Equity 2 Portfolio | 36,724 | .04 | $80,425 | 31-Jul-09 | | QUANTITATIVE MASTER SERIES TR-EXTENDED MARKET INDEX SERI | 12,100 | .01 | $25,289 | 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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