| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) ASSOCIATES INC | 3,881,130 | 6.14 | $198,442,176 | 30-Sep-09 | | MORGAN STANLEY | 2,680,503 | 4.24 | $137,054,118 | 30-Sep-09 | | SELECT EQUITY GROUP, INC. | 1,953,089 | 3.09 | $99,861,440 | 30-Sep-09 | | MUNDER CAPITAL MANAGEMENT, INC. | 1,886,137 | 2.98 | $96,438,184 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,658,632 | 2.62 | $84,805,854 | 30-Sep-09 | | General Atlantic LLC | 1,585,409 | 2.51 | $81,061,962 | 30-Sep-09 | | EAGLE ASSET MANAGEMENT, INC. | 1,560,495 | 2.47 | $79,788,109 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,394,745 | 2.21 | $71,313,311 | 30-Sep-09 | | ROOSEVELT INVESTMENT GROUP INC. | 1,275,769 | 2.02 | $65,230,068 | 30-Sep-09 | | Invesco Ltd. | 888,034 | 1.40 | $45,405,178 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) MID CAP GROWTH FUND | 2,370,400 | 3.75 | $121,198,552 | 30-Sep-09 | | Munder Mid-Cap Core Growth Fund | 1,107,450 | 1.75 | $55,228,531 | 30-Jun-09 | | MORGAN STANLEY INST FD TR-MID CAP GROWTH PORT | 949,591 | 1.50 | $47,356,103 | 30-Jun-09 | | Eagle Series Tr-Eagle Mid Cap Stock Fund | 623,809 | .99 | $31,895,354 | 30-Sep-09 | | VANGUARD MID-CAP INDEX FUND | 546,411 | .86 | $27,249,516 | 30-Jun-09 | | PRICE (T.ROWE) NEW HORIZONS FUND | 534,500 | .85 | $27,328,985 | 30-Sep-09 | | VAN KAMPEN MID CAP GROWTH FUND | 495,889 | .78 | $24,729,984 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 480,118 | .76 | $23,943,484 | 30-Jun-09 | | FEDERATED KAUFMANN FUND | 400,000 | .63 | $19,976,000 | 31-Jul-09 | | BARON GROWTH FUND | 400,000 | .63 | $19,948,000 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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