| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) ASSOCIATES INC | 9,365,940 | 8.25 | $357,685,248 | 30-Sep-09 | | Clearbridge Advisors, LLC | 3,295,068 | 2.90 | $125,838,646 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,410,804 | 2.12 | $92,068,604 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,652,861 | 1.46 | $63,122,761 | 30-Sep-09 | | DSM CAPITAL PARTNERS | 1,552,651 | 1.37 | $59,295,741 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 1,438,350 | 1.27 | $54,930,586 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 1,234,844 | 1.09 | $47,158,692 | 30-Sep-09 | | KORNITZER CAPITAL MANAGEMENT, INC. | 1,228,017 | 1.08 | $46,897,969 | 30-Sep-09 | | TIMES SQUARE CAPITAL MANAGEMENT | 1,201,400 | 1.06 | $45,881,466 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 1,138,780 | 1.00 | $43,490,008 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) GROWTH STOCK FUND INC. | 3,506,900 | 3.09 | $133,928,511 | 30-Sep-09 | | PRICE (T.ROWE) MID CAP GROWTH FUND | 3,150,000 | 2.77 | $120,298,500 | 30-Sep-09 | | COLUMBIA ACORN FD | 1,340,000 | 1.18 | $49,955,200 | 30-Jun-09 | | BUFFALO SMALL CAP FUND | 795,192 | .70 | $29,644,757 | 30-Jun-09 | | Mainstay Large Cap Growth Fund | 697,100 | .61 | $25,987,888 | 30-Jun-09 | | PENNSYLVANIA MUTUAL FUND INC | 665,150 | .59 | $24,796,792 | 30-Jun-09 | | VANGUARD MID-CAP INDEX FUND | 550,911 | .49 | $20,537,962 | 30-Jun-09 | | CALAMOS GROWTH FUND | 500,000 | .44 | $19,095,000 | 30-Sep-09 | | VANGUARD STRATEGIC EQUITY FUND | 493,400 | .43 | $18,393,952 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 486,316 | .43 | $18,129,860 | 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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