| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | WELLINGTON MANAGEMENT COMPANY, LLP | 3,147,606 | 7.53 | $142,429,171 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,698,542 | 6.46 | $122,109,025 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 2,342,158 | 5.61 | $105,982,649 | 30-Sep-09 | | Allianz Global Investors of America L.P. | 2,317,635 | 5.55 | $104,872,983 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,765,378 | 4.23 | $79,883,354 | 30-Sep-09 | | VIKING GLOBAL INVESTORS, L.P. | 1,694,734 | 4.06 | $76,686,713 | 30-Sep-09 | | STATE STREET CORPORATION | 1,234,790 | 2.96 | $55,874,247 | 30-Sep-09 | | IRONBRIDGE CAPITAL MANAGEMENT, L.P. | 997,898 | 2.39 | $45,154,884 | 30-Sep-09 | | ROYCE & ASSOCIATES, LLC | 894,900 | 2.14 | $40,494,225 | 30-Sep-09 | | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 831,835 | 1.99 | $37,640,533 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | VANGUARD SPECIALIZED-HEALTH CARE FUND | 2,000,000 | 4.79 | $88,600,000 | 31-Jul-09 | | Allianz Fds-NFJ Small Cap Value Fd | 1,504,600 | 3.60 | $66,578,550 | 31-Aug-09 | | PRICE (T.ROWE) SMALL-CAP VALUE FUND | 1,417,300 | 3.39 | $64,132,825 | 30-Sep-09 | | JANUS ORION FUND | 682,875 | 1.63 | $30,900,093 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 612,187 | 1.47 | $27,701,461 | 30-Sep-09 | | ROYCE TOTAL RETURN FUND | 541,300 | 1.30 | $23,719,766 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 504,570 | 1.21 | $22,110,257 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 384,840 | .92 | $16,863,688 | 30-Jun-09 | | VANGUARD SMALL CAP VALUE INDEX FUND | 327,995 | .79 | $14,372,740 | 30-Jun-09 | | ISHARES S&P MIDCAP 400 INDEX FD | 295,064 | .71 | $12,065,166 | 31-Oct-09 |
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Value shown is computed using the security's price on the report date given.
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