| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | RENAISSANCE TECHNOLOGIES, LLC | 740,751 | 5.62 | $17,237,275 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 660,730 | 5.02 | $15,375,187 | 30-Sep-09 | | ESSEX INVESTMENT MANAGEMENT CO INC | 427,056 | 3.24 | $9,937,593 | 30-Sep-09 | | DELAWARE MANAGEMENT BUSINESS TRUST | 380,074 | 2.89 | $8,844,321 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 367,170 | 2.79 | $8,544,045 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 338,353 | 2.57 | $7,873,474 | 30-Sep-09 | | STATE STREET CORPORATION | 332,328 | 2.52 | $7,733,272 | 30-Sep-09 | | KENNEDY CAPITAL MANAGEMENT, INC. | 321,065 | 2.44 | $7,471,182 | 30-Sep-09 | | Bank of New York Mellon Corporation | 275,855 | 2.09 | $6,419,145 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,357,995 | 10.31 | $31,600,543 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | HENNESSY CORNERSTONE GROWTH FUND | 261,000 | 1.98 | $6,073,470 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 190,816 | 1.45 | $4,440,288 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 174,108 | 1.32 | $4,441,495 | 30-Jun-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 170,774 | 1.30 | $3,499,159 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 149,765 | 1.14 | $3,820,505 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 122,704 | .93 | $2,424,631 | 30-Apr-09 | | JNL Variable LLC-JNL/Mellon Cap JNL 5 Fd | 122,000 | .93 | $3,112,220 | 30-Jun-09 | | Managers AMG Funds-Essex Small/Micro Cap Growth Fund | 121,959 | .93 | $3,119,711 | 31-Aug-09 | | DELAWARE GROUP EQUITY FDS III-TREND FUND | 114,500 | .87 | $2,920,895 | 30-Jun-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 99,936 | .76 | $2,325,510 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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