| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 1,787,704 | 7.50 | $16,965,310 | 30-Sep-09 | | FMR LLC | 1,402,525 | 5.89 | $13,309,962 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 990,212 | 4.16 | $9,397,111 | 30-Sep-09 | | GMT CAPITAL CORP | 651,349 | 2.73 | $6,181,302 | 30-Sep-09 | | NEXT CENTURY GROWTH INVESTORS LLC | 547,588 | 2.30 | $5,196,610 | 30-Sep-09 | | U.S. BANCORP (MINNESOTA) | 545,266 | 2.29 | $5,174,574 | 30-Sep-09 | | GLOBEFLEX CAPITAL, L.P. | 413,609 | 1.74 | $3,925,149 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 383,634 | 1.61 | $3,640,686 | 30-Sep-09 | | SKYLINE ASSET MANAGEMENT | 331,633 | 1.39 | $3,147,197 | 30-Sep-09 | | NUMERIC INVESTORS, LLC | 321,612 | 1.35 | $3,052,097 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY ADVISOR SMALL CAP FUND | 2,238,137 | 9.39 | $22,515,658 | 31-Aug-09 | | COLUMBIA ACORN FD | 1,450,000 | 6.09 | $11,643,500 | 30-Jun-09 | | Managers AMG Funds- Skyline Special Equity Fund | 198,701 | .83 | $1,885,672 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 194,430 | .82 | $1,845,140 | 30-Sep-09 | | FIRST AMERICAN SMALL CAP GROWTH OPPORTUNITIES FUND | 176,130 | .74 | $1,671,473 | 30-Sep-09 | | PERRITT MICROCAP OPPORTUNITIES FUND | 110,204 | .46 | $1,045,835 | 30-Sep-09 | | Mutual of America Investment Corp-Small Cap Growth Fund | 101,575 | .43 | $815,647 | 30-Jun-09 | | GE INSTITUTIONAL SMALL-CAP EQUITY FUND | 77,628 | .33 | $723,492 | 31-Jul-09 | | Robeco Inv fds-Robeco Boston Partners Long/Short Equity Fd | 73,640 | .31 | $740,818 | 31-Aug-09 | | ISHARES RUSSELL 2000 GROWTH INDEX FD | 72,434 | .30 | $687,398 | 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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