| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 1,885,793 | 4.90 | $12,615,955 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,837,063 | 4.78 | $12,289,951 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,528,461 | 3.97 | $10,225,404 | 30-Sep-09 | | ACADIAN ASSET MANAGEMENT | 1,294,386 | 3.37 | $8,659,442 | 30-Sep-09 | | ROYCE & ASSOCIATES, LLC | 1,123,200 | 2.92 | $7,514,208 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 1,087,372 | 2.83 | $7,274,518 | 30-Sep-09 | | Invesco Ltd. | 771,477 | 2.01 | $5,161,181 | 30-Sep-09 | | CONUS PARTNERS INC | 4,567,942 | 11.88 | $30,559,531 | 30-Sep-09 | | STATE STREET CORPORATION | 698,543 | 1.82 | $4,673,252 | 30-Sep-09 | | FMR LLC | 691,850 | 1.80 | $4,628,476 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ROYCE LOW-PRICED STOCK FUND | 790,200 | 2.05 | $5,310,144 | 30-Jun-09 | | Powershares Exhg Traded Fd-Dynamic Biotechnology & Genome Po | 521,834 | 1.36 | $4,174,672 | 31-Jul-09 | | ISHARES RUSSELL 2000 INDEX FD | 372,450 | .97 | $2,491,690 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 359,381 | .93 | $2,102,378 | 30-Apr-09 | | FIDELITY DIVIDEND GROWTH FUND | 357,467 | .93 | $2,391,454 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 337,915 | .88 | $2,270,788 | 30-Jun-09 | | DFA U.S. SMALL CAP SERIES | 334,660 | .87 | $1,957,761 | 30-Apr-09 | | ISHARES NASDAQ BIOTECHNOLOGY INDEX FUND | 310,528 | .81 | $1,732,746 | 31-Oct-09 | | VANGUARD EXPLORER FUND, INC. | 256,614 | .67 | $2,052,912 | 31-Jul-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 233,475 | .61 | $1,568,952 | 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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