| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | FMR LLC | 3,246,000 | 8.78 | $17,041,500 | 30-Sep-09 | | Sparta Asset Management, LLC | 3,035,902 | 8.21 | $15,938,485 | 30-Sep-09 | | DnB Nor Asset Management (US), Inc. | 1,825,943 | 4.94 | $9,586,200 | 30-Sep-09 | | RS Investment Management Co., LLC | 1,541,427 | 4.17 | $8,092,491 | 30-Sep-09 | | Perimeter Capital Partners LLC | 1,183,766 | 3.20 | $6,214,771 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 971,500 | 2.63 | $5,100,375 | 30-Sep-09 | | POLAR SECURITIES INC | 937,768 | 2.54 | $4,923,282 | 30-Sep-09 | | WASATCH ADVISORS INC | 5,499,758 | 14.88 | $28,873,729 | 30-Sep-09 | | 300 North Capital, LLC | 613,700 | 1.66 | $3,221,925 | 30-Sep-09 | | Bank of New York Mellon Corporation | 564,170 | 1.53 | $2,961,892 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY OTC PORTFOLIO | 2,282,700 | 6.17 | $11,984,175 | 30-Sep-09 | | WASATCH SMALL CAP GROWTH FUND | 1,509,480 | 4.08 | $7,547,400 | 30-Jun-09 | | WASATCH MICROCAP FUND | 1,464,497 | 3.96 | $7,322,485 | 30-Jun-09 | | FIDELITY SMALL CAP INDEPENDENCE FUND | 915,300 | 2.48 | $4,741,254 | 31-Jul-09 | | FIDELITY MAGELLAN FUND INC | 700,000 | 1.89 | $3,675,000 | 30-Sep-09 | | RS Investment Trust-RS Small Cap Growth Fund | 654,986 | 1.77 | $3,438,676 | 30-Sep-09 | | RS Investment Trust-Technology Fund | 575,782 | 1.56 | $3,022,855 | 30-Sep-09 | | WASATCH ULTRA GROWTH FUND | 493,000 | 1.33 | $2,465,000 | 30-Jun-09 | | MARSHALL SMALL-CAP GROWTH FUND | 338,800 | .92 | $1,487,332 | 31-Oct-09 | | Advisors Inner Circle Fd II-Perimeter Small Cap Growth Fund | 310,781 | .84 | $1,609,845 | 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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