| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | WELLINGTON MANAGEMENT COMPANY, LLP | 7,185,478 | 8.51 | $192,211,536 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 5,597,163 | 6.63 | $149,724,110 | 30-Sep-09 | | WESTFIELD CAPITAL MANAGEMENT COMPANY | 3,790,445 | 4.49 | $101,394,403 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 3,342,950 | 3.96 | $89,423,912 | 30-Sep-09 | | BlackRock Advisors, LLC | 3,111,650 | 3.69 | $83,236,637 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 2,880,300 | 3.41 | $77,048,025 | 30-Sep-09 | | FMR LLC | 2,727,940 | 3.23 | $72,972,395 | 30-Sep-09 | | Invesco Ltd. | 2,700,857 | 3.20 | $72,247,924 | 30-Sep-09 | | STATE STREET CORPORATION | 2,550,087 | 3.02 | $68,214,827 | 30-Sep-09 | | Bank of New York Mellon Corporation | 2,240,552 | 2.65 | $59,934,766 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD EXPLORER FUND, INC. | 2,381,308 | 2.82 | $56,556,065 | 31-Jul-09 | | COLUMBIA ACORN FD | 1,380,000 | 1.64 | $27,972,600 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 1,231,956 | 1.46 | $32,954,823 | 30-Sep-09 | | JANUS PERKINS MID CAP VALUE FUND | 1,219,415 | 1.44 | $32,619,351 | 30-Sep-09 | | AIM MID CAP CORE EQUITY FUND | 1,045,050 | 1.24 | $27,955,087 | 30-Sep-09 | | VANGUARD SMALL-CAP INDEX FUND | 1,019,745 | 1.21 | $20,670,231 | 30-Jun-09 | | ARTISAN MID-CAP FUND | 949,400 | 1.12 | $19,244,338 | 30-Jun-09 | | CALAMOS GROWTH FUND | 850,000 | 1.01 | $22,737,500 | 30-Sep-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 777,410 | .92 | $15,758,100 | 30-Jun-09 | | SENTINEL SMALL COMPANY FUND | 775,000 | .92 | $20,731,250 | 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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