| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 1,544,709 | 3.59 | $24,684,449 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 5,122,000 | 11.89 | $81,849,560 | 30-Sep-09 | | FMR LLC | 4,925,648 | 11.43 | $78,711,855 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 141,700 | .33 | $2,264,366 | 30-Sep-09 | | MORGAN STANLEY | 48,397 | .11 | $773,384 | 30-Sep-09 | | O'Shaughnessy Asset Management LLC | 37,657 | .09 | $601,758 | 30-Sep-09 | | RCM CAPITAL MANAGEMENT | 31,200 | .07 | $498,576 | 30-Sep-09 | | WELLS FARGO & COMPANY | 27,550 | .06 | $440,249 | 30-Sep-09 | | Cupps Capital Management, LLC | 11,460 | .03 | $183,130 | 30-Sep-09 | | PNC FINANCIAL SERVICES GROUP, INC. | 11,300 | .03 | $180,574 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN SELECT FD | 3,937,425 | 9.14 | $35,436,825 | 30-Jun-09 | | FIDELITY MID-CAP STOCK FUND | 2,750,000 | 6.38 | $43,945,000 | 30-Sep-09 | | BLAIR (WILLIAM) MUTUAL FUNDS, INC.-SMALL CAP GROWTH FUND | 765,909 | 1.78 | $12,239,225 | 30-Sep-09 | | FIDELITY SMALL CAP INDEPENDENCE FUND | 761,000 | 1.77 | $9,702,750 | 31-Jul-09 | | COLUMBIA ACORN FD | 709,260 | 1.65 | $6,383,340 | 30-Jun-09 | | Fidelity Small Cap Growth Fund | 692,300 | 1.61 | $8,826,825 | 31-Jul-09 | | WANGER ADVISOR TRUST-SELECT, VARIABLE SERIES | 512,600 | 1.19 | $4,613,400 | 30-Jun-09 | | FIDELITY SELECT PORTFOLIOS - SOFTWARE & COMPUTER SERVICE | 494,331 | 1.15 | $7,899,409 | 30-Sep-09 | | BLAIR (WILLIAM) MUTUAL FUNDS, INC.-GROWTH FUND | 226,725 | .53 | $3,101,598 | 31-Oct-09 | | Northern Multi-Manager Small Cap | 67,001 | .16 | $1,070,675 | 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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