| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 3,493,569 | 6.72 | $15,266,896 | 30-Sep-09 | | DELTEC ASSET MANAGEMENT LLC | 2,179,089 | 4.19 | $9,522,618 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 1,384,221 | 2.66 | $6,049,045 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 1,065,460 | 2.05 | $4,656,060 | 30-Sep-09 | | STATE STREET CORPORATION | 1,046,473 | 2.01 | $4,573,087 | 30-Sep-09 | | Third Point LLC | 6,790,000 | 13.05 | $29,672,300 | 30-Sep-09 | | KINGDON CAPITAL MANAGEMENT LLC | 1,000,000 | 1.92 | $4,370,000 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 921,714 | 1.77 | $4,027,890 | 30-Sep-09 | | NORTHERN TRUST CORPORATION | 575,614 | 1.11 | $1,870,745 | 30-Jun-09 | | SHAW D.E. & CO., INC. | 496,822 | .96 | $2,171,112 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ISHARES RUSSELL 2000 INDEX FD | 754,806 | 1.45 | $3,298,502 | 30-Sep-09 | | ISHARES NASDAQ BIOTECHNOLOGY INDEX FUND | 487,687 | .94 | $1,516,706 | 31-Oct-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 441,141 | .85 | $1,433,708 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 386,617 | .74 | $1,689,516 | 30-Sep-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 384,639 | .74 | $1,250,076 | 30-Jun-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 325,915 | .63 | $1,059,223 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 316,940 | .61 | $659,235 | 30-Apr-09 | | Goldman Sachs Structured Small Cap Equity Fund | 180,025 | .35 | $687,695 | 31-Jul-09 | | DFA U.S. MICRO CAP SERIES | 176,462 | .34 | $367,040 | 30-Apr-09 | | BOGLE INVESTMENT MANAGEMENT-SMALL CAP GROWTH FUND | 168,600 | .32 | $526,032 | 31-Aug-09 |
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Value shown is computed using the security's price on the report date given.
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