| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | DIMENSIONAL FUND ADVISORS LP | 4,179,497 | 4.68 | $117,318,480 | 30-Sep-09 | | JP MORGAN CHASE & COMPANY | 4,167,604 | 4.67 | $116,984,644 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 3,869,535 | 4.34 | $108,617,847 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 3,339,800 | 3.74 | $93,748,186 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 3,076,121 | 3.45 | $86,346,716 | 30-Sep-09 | | TIAA-CREF INVESTMENT MANAGEMENT, LLC | 2,577,246 | 2.89 | $72,343,295 | 30-Sep-09 | | LUTHER KING CAPITAL MANAGEMENT | 2,423,705 | 2.72 | $68,033,399 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 2,292,186 | 2.57 | $64,341,661 | 30-Sep-09 | | FISHER INVESTMENTS, INC. | 2,161,055 | 2.42 | $60,660,813 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 9,522,749 | 10.67 | $267,303,564 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN FD | 2,500,000 | 2.80 | $46,875,000 | 30-Jun-09 | | DFA U.S. SMALL CAP VALUE SERIES | 2,423,597 | 2.72 | $48,714,299 | 30-Apr-09 | | COLLEGE RETIREMENT EQUITIES FUND-STOCK ACCOUNT | 2,071,255 | 2.32 | $38,836,031 | 30-Jun-09 | | JP MORGAN SMALL CAP EQUITY FUND | 1,353,439 | 1.52 | $37,991,032 | 30-Sep-09 | | HARTFORD GROWTH OPPORTUNITIES FUND | 1,320,475 | 1.48 | $32,549,708 | 31-Jul-09 | | RAINIER SMALL/MIDCAP EQUITY PORTFOLIO | 1,278,460 | 1.43 | $23,971,125 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 1,071,832 | 1.20 | $20,096,850 | 30-Jun-09 | | Blackrock Large Cap Ser Fds-Master Large Cap Value Port | 1,020,000 | 1.14 | $19,125,000 | 30-Jun-09 | | JP MORGAN MID CAP VALUE FUND | 992,350 | 1.11 | $27,855,264 | 30-Sep-09 | | JANUS VENTURE FUND | 983,640 | 1.10 | $27,610,774 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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