| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 4,828,430 | 6.88 | $85,463,211 | 30-Sep-09 | | JANA PARTNERS LLC | 3,864,113 | 5.51 | $68,394,800 | 30-Sep-09 | | ValueAct Holdings, L.P. | 3,715,200 | 5.30 | $65,759,040 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,777,236 | 3.96 | $49,157,077 | 30-Sep-09 | | RS Investment Management Co., LLC | 2,529,485 | 3.61 | $44,771,884 | 30-Sep-09 | | STATE STREET CORPORATION | 2,105,092 | 3.00 | $37,260,128 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 2,092,641 | 2.98 | $37,039,745 | 30-Sep-09 | | RAINIER INVESTMENT MANAGEMENT | 2,062,062 | 2.94 | $36,498,497 | 30-Sep-09 | | BRIDGER MANAGEMENT LLC | 2,000,000 | 2.85 | $35,400,000 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 1,966,000 | 2.80 | $34,798,200 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | NEUBERGER & BERMAN GENESIS FUND | 3,307,491 | 4.72 | $58,542,590 | 30-Sep-09 | | RS INVESTMENT TRUST-PARTNERS FUND | 1,795,832 | 2.56 | $31,786,226 | 30-Sep-09 | | RAINIER SMALL/MIDCAP EQUITY PORTFOLIO | 1,770,353 | 2.52 | $24,360,057 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 1,035,257 | 1.48 | $18,324,048 | 30-Sep-09 | | COLUMBIA ACORN FD | 900,000 | 1.28 | $12,384,000 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 858,330 | 1.22 | $11,810,620 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 825,735 | 1.18 | $13,756,745 | 31-Jul-09 | | BARON SMALL CAP FUND | 750,000 | 1.07 | $10,320,000 | 30-Jun-09 | | Northwestern Mutual Ser Fd-Mid Cap Growth Stock Port | 730,349 | 1.04 | $10,049,602 | 30-Jun-09 | | BROWN CAPITAL MANAGEMENT SMALL COMPANY FUND | 695,665 | .99 | $9,572,350 | 30-Jun-09 |
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Value shown is computed using the security's price on the report date given.
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