| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BlackRock Advisors, LLC | 4,799,830 | 5.17 | $75,981,308 | 30-Sep-09 | | SCHRODER INVESTMENT MANAGEMENT GROUP | 4,690,379 | 5.06 | $74,248,699 | 30-Sep-09 | | WADDELL & REED FINANCIAL INC. | 4,598,657 | 4.96 | $72,796,740 | 30-Sep-09 | | WELLS FARGO & COMPANY | 3,211,356 | 3.46 | $50,835,765 | 30-Sep-09 | | EARNEST PARTNERS LLC | 2,942,624 | 3.17 | $46,581,737 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,847,702 | 3.07 | $45,079,122 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,653,873 | 2.86 | $42,010,809 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 1,915,976 | 2.06 | $30,329,900 | 30-Sep-09 | | RS Investment Management Co., LLC | 10,625,314 | 11.45 | $168,198,720 | 30-Sep-09 | | WESTFIELD CAPITAL MANAGEMENT COMPANY | 1,833,525 | 1.98 | $29,024,700 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | RS INVESTMENT TRUST-VALUE FUND | 3,352,505 | 3.61 | $53,070,154 | 30-Sep-09 | | RS INVESTMENT TRUST-PARTNERS FUND | 3,322,124 | 3.58 | $52,589,222 | 30-Sep-09 | | WADDELL & REED ADVISORS FDS-SMALL CAP FUND | 1,313,600 | 1.42 | $20,702,336 | 30-Jun-09 | | BLACKROCK FUNDS-SMALL CAP GROWTH EQUITY PORTFOLIO | 1,182,200 | 1.27 | $18,631,472 | 30-Jun-09 | | Metropolitan Ser Fd-Blackrock Aggressive Growth Port | 1,009,900 | 1.09 | $15,916,024 | 30-Jun-09 | | COLUMBIA ACORN FD | 1,000,000 | 1.08 | $15,760,000 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 850,109 | .92 | $13,397,717 | 30-Jun-09 | | Ivy Fds VIP-Small Cap Growth Port | 816,200 | .88 | $12,863,312 | 30-Jun-09 | | IVY SMALL CAP GROWTH FUND | 718,700 | .77 | $11,326,712 | 30-Jun-09 | | Wells Fargo Advantage Small Cap Opportunities Fd | 691,300 | .75 | $10,943,279 | 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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