| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | SHAW D.E. & CO., INC. | 7,358,270 | 6.55 | $90,580,303 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 3,924,040 | 3.50 | $48,304,932 | 30-Sep-09 | | WESTFIELD CAPITAL MANAGEMENT COMPANY | 3,723,885 | 3.32 | $45,841,024 | 30-Sep-09 | | WELLS FARGO & COMPANY | 3,616,935 | 3.22 | $44,524,469 | 30-Sep-09 | | VERTICAL GROUP L.P. (THE) | 2,823,624 | 2.52 | $34,758,811 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,617,694 | 2.33 | $32,223,813 | 30-Sep-09 | | FMR LLC | 13,373,366 | 11.91 | $164,626,135 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 2,229,590 | 1.99 | $27,446,252 | 30-Sep-09 | | PALO ALTO INVESTORS, LLC | 1,782,330 | 1.59 | $21,940,482 | 30-Sep-09 | | Calamos Advisors LLC | 1,681,595 | 1.50 | $20,700,434 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | FIDELITY PURITAN FUND INC | 2,192,100 | 1.95 | $26,984,751 | 30-Sep-09 | | SMALLCAP WORLD FUND | 1,240,000 | 1.10 | $13,330,000 | 30-Jun-09 | | CALAMOS GROWTH FUND | 1,233,958 | 1.10 | $15,190,022 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - MEDICAL EQUIPMENT & SYSTEMS | 1,199,200 | 1.07 | $14,762,152 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 1,094,191 | .97 | $13,469,491 | 30-Sep-09 | | FIDELITY CONTRAFUND INC | 1,057,900 | .94 | $13,022,749 | 30-Sep-09 | | VARIABLE INSURANCE PRODUCTS FD II-CONTRAFUND PORTFOLIO | 895,045 | .80 | $11,018,003 | 30-Sep-09 | | Wells Fargo Advantage Small Cap Growth Fd | 887,667 | .79 | $10,927,180 | 30-Sep-09 | | AMERICAN CENTURY HERITAGE FUND | 864,700 | .77 | $10,644,457 | 30-Sep-09 | | FIDELITY SELECT PORTFOLIOS - HEALTH CARE | 818,591 | .73 | $10,076,855 | 30-Sep-09 |
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*
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Value shown is computed using the security's price on the report date given.
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