| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | WELLINGTON MANAGEMENT COMPANY, LLP | 1,321,006 | 6.14 | $14,531,066 | 30-Sep-09 | | FMR LLC | 989,854 | 4.60 | $10,888,394 | 30-Sep-09 | | PERCEPTIVE ADVISORS LLC | 727,834 | 3.38 | $8,006,174 | 30-Sep-09 | | BLACKROCK INC. | 532,600 | 2.48 | $5,858,600 | 30-Sep-09 | | OBERWEIS ASSET MANAGEMENT INC. | 327,900 | 1.52 | $3,606,900 | 30-Sep-09 | | MARTIN CURRIE INC | 217,300 | 1.01 | $2,390,300 | 30-Sep-09 | | MARTIN CURRIE INVESTMENT MANAGEMENT LIMITED | 217,300 | 1.01 | $1,471,121 | 31-Mar-09 | | BlackRock Advisors, LLC | 189,900 | .88 | $2,088,900 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 163,200 | .76 | $1,795,200 | 30-Sep-09 | | ESSEX INVESTMENT MANAGEMENT CO INC | 131,481 | .61 | $1,446,291 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VARIABLE INSURANCE PRODUCTS FD III-MID-CAP PORTFOLIO | 567,862 | 2.64 | $6,246,482 | 30-Sep-09 | | Oberweis China Opportunities Fund | 287,900 | 1.34 | $2,372,296 | 30-Jun-09 | | HARTFORD GLOBAL HEALTH FUND | 250,423 | 1.16 | $2,431,607 | 31-Jul-09 | | Blackrock Funds-Health Sciences Opportunity Portfolio | 158,900 | .74 | $1,309,336 | 30-Jun-09 | | FIDELITY ADVISOR MID CAP II FUND | 152,999 | .71 | $1,682,989 | 30-Sep-09 | | HARTFORD GLOBAL HEALTH HLS FUND | 121,000 | .56 | $997,040 | 30-Jun-09 | | FRANKLIN STRATEGIC SERIES-FRANKLIN BIOTECHNOLOGY DISCOVE | 94,100 | .44 | $1,035,100 | 30-Sep-09 | | ING INV TR-ING/FMR (SM) DIVERSIFIED MID CAP PORT | 94,100 | .44 | $775,384 | 30-Jun-09 | | Powershares Exhg Traded Fd-Powershares Golden Dragon Halter | 63,963 | .30 | $621,080 | 31-Jul-09 | | VARIABLE INSURANCE PRODUCTS FD-GROWTH PORTFOLIO | 57,250 | .27 | $629,750 | 30-Sep-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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