| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | FEDERATED INVESTORS, INC. | 1,244,660 | 3.02 | $2,265,281 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 1,102,510 | 2.67 | $2,006,568 | 30-Sep-09 | | BVF INC. | 4,560,851 | 11.05 | $8,300,748 | 30-Sep-09 | | HARRIS (WILLIAM) INVESTORS, INC. | 723,200 | 1.75 | $1,316,224 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 693,051 | 1.68 | $1,261,352 | 30-Sep-09 | | MHR Fund Management, LLC | 445,000 | 1.08 | $809,900 | 30-Sep-09 | | BRIDGEWAY CAPITAL MANAGEMENT, INC. | 382,600 | .93 | $696,332 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 286,055 | .69 | $520,620 | 30-Sep-09 | | GEODE CAPITAL MANAGEMENT, LLC | 242,215 | .59 | $440,831 | 30-Sep-09 | | CALPERS (CALIFORNIA-PUBLIC EMPLOYEES RETIREMENT SYSTEM) | 127,000 | .31 | $163,830 | 30-Jun-09 |
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| Holder | Shares | % Out | Value* | Reported | | FEDERATED KAUFMANN SMALL CAP FUND | 931,972 | 2.26 | $1,705,508 | 31-Jul-09 | | DFA U.S. SMALL CAP VALUE SERIES | 470,278 | 1.14 | $522,008 | 30-Apr-09 | | Advanced Series Tr-AST/Federated Aggressive Growth Port | 287,688 | .70 | $371,117 | 30-Jun-09 | | BRIDGEWAY FDS INC-ULTRA SMALL COMPANY FD | 229,200 | .56 | $295,668 | 30-Jun-09 | | SPARTAN TOTAL MARKET INDEX FUND | 152,859 | .37 | $278,203 | 30-Sep-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 138,658 | .34 | $178,868 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 128,655 | .31 | $165,964 | 30-Jun-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 80,058 | .19 | $145,705 | 30-Sep-09 | | ISHARES Russell Micro Cap (TM) Index Fund | 53,671 | .13 | $97,681 | 30-Sep-09 | | COLLEGE RETIREMENT EQUITIES FUND-SOCIAL CHOICE ACCOUNT | 37,350 | .09 | $48,181 | 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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