| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | BlackRock Group Limited | 1,885,300 | 7.17 | $74,280,820 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,786,346 | 6.79 | $70,382,032 | 30-Sep-09 | | FRANKLIN RESOURCES, INC | 1,150,800 | 4.38 | $45,341,520 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,140,300 | 4.34 | $44,927,820 | 30-Sep-09 | | EAGLE ASSET MANAGEMENT, INC. | 816,450 | 3.10 | $32,168,130 | 30-Sep-09 | | PRICE (T.ROWE) ASSOCIATES INC | 795,240 | 3.02 | $31,332,456 | 30-Sep-09 | | WELLINGTON MANAGEMENT COMPANY, LLP | 620,532 | 2.36 | $24,448,960 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 3,457,850 | 13.15 | $136,239,290 | 30-Sep-09 | | WADDELL & REED FINANCIAL INC. | 2,816,096 | 10.71 | $110,954,182 | 30-Sep-09 | | Bank of New York Mellon Corporation | 2,691,693 | 10.24 | $106,052,704 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN FD | 2,200,000 | 8.37 | $98,560,000 | 30-Jun-09 | | WADDELL & REED ADVISORS FDS-SCIENCE & TECHNOLOGY FUND | 1,849,050 | 7.03 | $82,837,440 | 30-Jun-09 | | FRANKLIN VALUE INVESTORS TR-FRANKLIN BALANCE SHEET INVMT | 1,150,800 | 4.38 | $45,341,520 | 30-Sep-09 | | COLUMBIA ACORN USA FD | 625,300 | 2.38 | $28,013,440 | 30-Jun-09 | | IVY SCIENCE & TECHNOLOGY FUND | 593,300 | 2.26 | $26,579,840 | 30-Jun-09 | | PRICE (T.ROWE) SMALL CAP STOCK FUND | 550,000 | 2.09 | $21,670,000 | 30-Sep-09 | | Wanger Advisor Trust-Wanger USA, Variable Series | 452,300 | 1.72 | $20,263,040 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 385,344 | 1.47 | $15,182,553 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 340,862 | 1.30 | $13,389,059 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 319,384 | 1.21 | $14,308,403 | 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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