| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | WISCONSIN (STATE OF) INVESTMENT BOARD | 9,275,174 | 17.79 | $4,081,076 | 30-Sep-09 | | ZESIGER CAPITAL GROUP LLC | 7,974,200 | 15.30 | $3,508,648 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 694,434 | 1.33 | $305,550 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 457,997 | .88 | $201,518 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 298,400 | .57 | $131,296 | 30-Sep-09 | | MORGAN STANLEY | 221,948 | .43 | $97,657 | 30-Sep-09 | | PERKINS CAPITAL MANAGEMENT, INC. | 200,000 | .38 | $88,000 | 30-Sep-09 | | Portolan Capital Management, LLC | 153,163 | .29 | $67,391 | 30-Sep-09 | | GAMCO INVESTORS INC | 152,000 | .29 | $66,880 | 30-Sep-09 | | WELLS FARGO & COMPANY | 132,555 | .25 | $58,324 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD EXTENDED MARKET INDEX FUND | 447,038 | .86 | $165,404 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 244,014 | .47 | $90,285 | 30-Jun-09 | | PROFESSIONALLY MANAGED PORTF-PERKINS DISCOVERY FUND | 200,000 | .38 | $88,000 | 30-Sep-09 | | EQ Advisors Trust-EQ/GAMCO Small Company Value Portfolio | 170,000 | .33 | $62,900 | 30-Jun-09 | | GABELLI SMALL CAP GROWTH FUND | 40,000 | .08 | $17,600 | 30-Sep-09 | | Gamco Westwood Mighty Mites Fd | 28,700 | .06 | $12,628 | 30-Sep-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 20,430 | .04 | $8,989 | 30-Sep-09 | | VANTAGEPOINT MID/SMALL COMPANY INDEX FUND | 4,463 | .01 | $1,651 | 30-Jun-09 | | VANTAGEPOINT FDS-BROAD MARKET INDEX FUND | 4,462 | .01 | $1,650 | 30-Jun-09 | | VANGUARD INSTITUTIONAL INDEX-INST TOTAL STOCK MARKET IND | 2,582 | .00 | $619 | 31-Mar-09 |
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Value shown is computed using the security's price on the report date given.
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