| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) ASSOCIATES INC | 12,252,000 | 8.72 | $373,563,480 | 30-Sep-09 | | BAILLIE GIFFORD AND COMPANY | 10,909,367 | 7.77 | $332,626,599 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 6,580,358 | 4.68 | $200,635,115 | 30-Sep-09 | | Capital Research Global Investors | 5,649,600 | 4.02 | $172,256,304 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 5,231,668 | 3.72 | $159,513,557 | 30-Sep-09 | | STATE STREET CORPORATION | 4,671,752 | 3.33 | $142,441,718 | 30-Sep-09 | | TURNER INVESTMENT PARTNERS, INC. | 4,454,738 | 3.17 | $135,824,961 | 30-Sep-09 | | BAMCO INC. | 4,288,773 | 3.05 | $130,764,688 | 30-Sep-09 | | COLUMBUS CIRCLE INVESTORS | 3,343,529 | 2.38 | $101,944,199 | 30-Sep-09 | | GILDER, GAGNON, HOWE & CO. | 2,924,525 | 2.08 | $89,168,767 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) MID CAP GROWTH FUND | 6,000,000 | 4.27 | $182,940,000 | 30-Sep-09 | | BARON GROWTH FUND | 3,300,000 | 2.35 | $62,634,000 | 30-Jun-09 | | GROWTH FUND OF AMERICA INC | 2,399,600 | 1.71 | $73,163,804 | 30-Sep-09 | | Powershares Exhg Traded Fd Tr-Powershares QQQ Tr, Series 1 | 1,819,818 | 1.30 | $36,450,954 | 30-Sep-08 | | AMCAP FUND | 1,500,000 | 1.07 | $45,735,000 | 30-Sep-09 | | VANGUARD MID-CAP INDEX FUND | 1,479,888 | 1.05 | $28,088,274 | 30-Jun-09 | | FIDELITY GROWTH COMPANY FUND | 1,475,000 | 1.05 | $44,972,750 | 30-Sep-09 | | VANGUARD 500 INDEX FUND | 1,345,384 | .96 | $25,535,388 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 1,302,011 | .93 | $24,712,168 | 30-Jun-09 | | SPDR TRUST SERIES 1 | 1,262,697 | .90 | $25,291,820 | 30-Sep-08 |
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Value shown is computed using the security's price on the report date given.
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