| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | ROYCE & ASSOCIATES, LLC | 2,345,522 | 7.83 | $3,940,476 | 30-Sep-09 | | MORGAN STANLEY | 1,244,819 | 4.15 | $2,091,295 | 30-Sep-09 | | THOMSON HORSTMANN & BRYANT, INC. | 990,181 | 3.30 | $1,663,504 | 30-Sep-09 | | AXA | 982,560 | 3.28 | $1,650,700 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 895,012 | 2.99 | $1,503,620 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 607,187 | 2.03 | $1,020,074 | 30-Sep-09 | | BRIDGER MANAGEMENT LLC | 3,962,179 | 13.22 | $6,656,460 | 30-Sep-09 | | ACCIPITER CAPITAL MANAGEMENT | 3,923,498 | 13.09 | $6,591,476 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 491,039 | 1.64 | $824,945 | 30-Sep-09 | | WELLS FARGO & COMPANY | 458,146 | 1.53 | $769,685 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | ROYCE MICRO-CAP FUND | 1,461,322 | 4.88 | $2,338,115 | 30-Jun-09 | | ROYCE CAPITAL FUND-MICRO-CAP PORTFOLIO | 884,200 | 2.95 | $1,414,720 | 30-Jun-09 | | DFA U.S. MICRO CAP SERIES | 287,604 | .96 | $287,604 | 30-Apr-09 | | DFA U.S. SMALL CAP SERIES | 203,675 | .68 | $203,675 | 30-Apr-09 | | ING INV TR-ING/EVERGREEN HEALTH SCIENCES PORTFOLIO | 202,114 | .67 | $323,382 | 30-Jun-09 | | EVERGREEN HEALTH CARE FUND | 199,719 | .67 | $349,508 | 31-Jul-09 | | VANGUARD EXTENDED MARKET INDEX FUND | 187,068 | .62 | $299,308 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 165,963 | .55 | $265,540 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 117,570 | .39 | $117,570 | 30-Apr-09 | | Transamerica Evergreen Health Care Port | 63,091 | .21 | $110,409 | 31-Jul-09 |
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Value shown is computed using the security's price on the report date given.
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