| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | OPPENHEIMER FUNDS, INC. | 6,002,600 | 6.47 | $26,831,622 | 30-Sep-09 | | BB BIOTECH AG | 5,431,980 | 5.86 | $24,280,950 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 5,276,234 | 5.69 | $23,584,765 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 3,708,543 | 4.00 | $16,577,187 | 30-Sep-09 | | TCW GROUP, INC. (THE) | 3,639,148 | 3.92 | $16,266,991 | 30-Sep-09 | | STATE STREET CORPORATION | 2,092,051 | 2.26 | $9,351,467 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 12,715,110 | 13.71 | $56,836,541 | 30-Sep-09 | | FEDERATED INVESTORS, INC. | 10,599,940 | 11.43 | $47,381,731 | 30-Sep-09 | | JANUS CAPITAL MANAGEMENT, LLC | 1,645,990 | 1.78 | $7,357,575 | 30-Sep-09 | | LEUTHOLD WEEDEN CAPITAL MANAGEMENT, LLC | 1,377,613 | 1.49 | $6,157,930 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | Professionally Managed Portf-Winslow Green Growth Fund | 2,000,000 | 2.16 | $8,940,000 | 30-Sep-09 | | FEDERATED KAUFMANN FUND | 14,911,179 | 16.08 | $76,047,012 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 1,360,992 | 1.47 | $6,083,634 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 900,874 | .97 | $4,495,361 | 30-Jun-09 | | FEDERATED KAUFMANN SMALL CAP FUND | 807,868 | .87 | $4,120,126 | 31-Jul-09 | | LEUTHOLD CORE INVESTMENT FUND | 803,790 | .87 | $3,592,941 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 777,505 | .84 | $3,879,749 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 712,710 | .77 | $3,185,813 | 30-Sep-09 | | JANUS GLOBAL LIFE SCIENCES FUND | 705,330 | .76 | $3,152,825 | 30-Sep-09 | | ISHARES NASDAQ BIOTECHNOLOGY INDEX FUND | 651,466 | .70 | $2,299,674 | 31-Oct-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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