| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | JENNISON ASSOCIATES LLC | 1,384,024 | 4.00 | $18,836,566 | 30-Sep-09 | | GOLDMAN SACHS GROUP INC | 1,005,128 | 2.91 | $13,679,792 | 30-Sep-09 | | JP MORGAN CHASE & COMPANY | 878,037 | 2.54 | $11,950,083 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 797,740 | 2.31 | $10,857,241 | 30-Sep-09 | | SYMPHONY ASSET MANAGEMENT LLC | 777,338 | 2.25 | $10,579,570 | 30-Sep-09 | | CHARTWELL INVESTMENT PARTNERS | 730,198 | 2.11 | $9,937,994 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 4,884,300 | 14.12 | $66,475,323 | 30-Sep-09 | | MASON STREET ADVISORS, LLC. | 684,895 | 1.98 | $9,321,420 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 665,510 | 1.92 | $9,057,591 | 30-Sep-09 | | Allianz Global Investors of America L.P. | 664,406 | 1.92 | $9,042,565 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN FD | 2,500,000 | 7.23 | $34,025,000 | 30-Sep-09 | | JENNISON SMALL COMPANY FUND | 958,200 | 2.77 | $16,030,686 | 31-Oct-09 | | Wanger Advisor Trust-Wanger USA, Variable Series | 947,000 | 2.74 | $12,888,670 | 30-Sep-09 | | COLUMBIA ACORN USA FD | 947,000 | 2.74 | $12,888,670 | 30-Sep-09 | | Goldman Sachs Tr-Goldman Sachs Tollkeeper Fund | 531,680 | 1.54 | $6,236,606 | 30-Jun-09 | | OPPENHEIMER DISCOVERY FUND | 477,826 | 1.38 | $6,503,211 | 30-Sep-09 | | JANUS VENTURE FUND | 388,915 | 1.12 | $5,293,133 | 30-Sep-09 | | NORTHWESTERN MUTUAL SER FD-SMALL CAP GROWTH STOCK PORTF | 347,963 | 1.01 | $4,081,605 | 30-Jun-09 | | JP MORGAN SMALL CAP GROWTH FUND | 331,750 | .96 | $5,550,177 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 272,879 | .79 | $3,200,870 | 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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