| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) ASSOCIATES INC | 4,058,200 | 9.18 | $118,296,530 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 2,853,975 | 6.46 | $83,193,371 | 30-Sep-09 | | FRONTIER CAPITAL MANAGEMENT COMPANY INC | 1,838,993 | 4.16 | $53,606,645 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,649,543 | 3.73 | $48,084,178 | 30-Sep-09 | | LORD ABBETT & CO | 1,190,848 | 2.70 | $34,713,219 | 30-Sep-09 | | OAK RIDGE INVESTMENTS, LLC | 1,135,413 | 2.57 | $33,097,288 | 30-Sep-09 | | TIMES SQUARE CAPITAL MANAGEMENT | 1,019,150 | 2.31 | $29,708,222 | 30-Sep-09 | | Bank of New York Mellon Corporation | 934,607 | 2.12 | $27,243,794 | 30-Sep-09 | | JANUS CAPITAL MANAGEMENT, LLC | 915,317 | 2.07 | $26,681,490 | 30-Sep-09 | | TCW GROUP, INC. (THE) | 854,767 | 1.93 | $24,916,458 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | PRICE (T.ROWE) NEW HORIZONS FUND | 1,214,800 | 2.75 | $35,411,420 | 30-Sep-09 | | PRICE (T.ROWE) SMALL CAP STOCK FUND | 950,000 | 2.15 | $27,692,500 | 30-Sep-09 | | PRICE (T.ROWE) HEALTH SCIENCES FUND | 875,000 | 1.98 | $21,822,500 | 30-Jun-09 | | LORD ABBETT SMALL CAP BLEND FUND | 759,466 | 1.72 | $19,579,033 | 31-Jul-09 | | SENTINEL SMALL COMPANY FUND | 575,000 | 1.30 | $16,761,250 | 30-Sep-09 | | JP MORGAN SMALL CAP EQUITY FUND | 546,932 | 1.24 | $15,943,067 | 30-Sep-09 | | JANUS VENTURE FUND | 546,780 | 1.24 | $15,938,637 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 538,934 | 1.22 | $15,709,926 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 495,986 | 1.12 | $15,559,080 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 451,190 | 1.02 | $11,252,678 | 30-Jun-09 |
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*
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Value shown is computed using the security's price on the report date given.
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