| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 1,169,089 | 3.57 | $7,786,132 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 656,283 | 2.00 | $4,370,844 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 376,891 | 1.15 | $2,510,094 | 30-Sep-09 | | MORGAN STANLEY | 348,469 | 1.06 | $2,320,803 | 30-Sep-09 | | STATE STREET CORPORATION | 301,143 | .92 | $2,005,612 | 30-Sep-09 | | Portolan Capital Management, LLC | 222,472 | .68 | $1,481,663 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 180,020 | .55 | $2,412,268 | 30-Jun-09 | | PanAgora Asset Management, Inc. | 136,283 | .42 | $907,644 | 30-Sep-09 | | PADCO ADVISORS, INC. | 128,013 | .39 | $852,566 | 30-Sep-09 | | Credit Suisse/ | 116,859 | .36 | $778,280 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ISHARES NASDAQ BIOTECHNOLOGY INDEX FUND | 311,935 | .95 | $1,980,787 | 31-Oct-09 | | Powershares Exhg Traded Fd-Dynamic Biotechnology & Genome Po | 293,402 | .90 | $3,573,636 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 246,493 | .75 | $1,641,643 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 193,998 | .59 | $2,599,573 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 134,329 | .41 | $1,800,008 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 128,989 | .39 | $859,066 | 30-Sep-09 | | RYDEX SERIES FUNDS-BIOTECHNOLOGY FUND | 127,271 | .39 | $847,624 | 30-Sep-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 122,511 | .37 | $1,641,647 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 106,875 | .33 | $1,354,106 | 30-Apr-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 105,428 | .32 | $1,412,735 | 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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