| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 2,686,058 | 7.71 | $57,777,107 | 30-Sep-09 | | DEERFIELD MANAGEMENT | 2,359,752 | 6.78 | $50,758,265 | 30-Sep-09 | | AXA | 1,736,723 | 4.99 | $37,356,911 | 30-Sep-09 | | CR Intrinsic Investors, LLC | 1,711,600 | 4.92 | $36,816,516 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,644,402 | 4.72 | $35,371,087 | 30-Sep-09 | | Visium Asset Management | 1,514,895 | 4.35 | $32,585,391 | 30-Sep-09 | | CENTURY CAPITAL MANAGEMENT, INC. | 1,111,958 | 3.19 | $23,918,216 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,088,354 | 3.13 | $23,410,494 | 30-Sep-09 | | S.A.C. CAPITAL ADVISORS, LLC | 930,447 | 2.67 | $20,013,914 | 30-Sep-09 | | STATE STREET CORPORATION | 912,771 | 2.62 | $19,633,704 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ISHARES RUSSELL 2000 INDEX FD | 511,410 | 1.47 | $11,000,429 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 452,154 | 1.30 | $9,481,669 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 421,098 | 1.21 | $6,379,634 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 417,458 | 1.20 | $6,324,488 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 408,665 | 1.17 | $4,384,975 | 30-Apr-09 | | CENTURY SMALL CAP SELECT FUND | 380,550 | 1.09 | $8,185,630 | 30-Sep-09 | | ISHARES RUSSELL 2000 VALUE INDEX FD | 293,312 | .84 | $6,309,141 | 30-Sep-09 | | DFA U.S. MICRO CAP SERIES | 271,575 | .78 | $2,913,999 | 30-Apr-09 | | VANGUARD SMALL-CAP GROWTH INDEX FUND | 266,325 | .76 | $4,034,823 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 212,800 | .61 | $3,449,488 | 31-Jul-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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