| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | DELAWARE MANAGEMENT BUSINESS TRUST | 1,914,471 | 8.02 | $12,865,245 | 30-Sep-09 | | CUMBERLAND ASSOCIATES LLC | 1,806,700 | 7.57 | $12,141,024 | 30-Sep-09 | | TIMES SQUARE CAPITAL MANAGEMENT | 1,737,500 | 7.28 | $11,676,000 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 1,198,700 | 5.02 | $8,055,264 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 1,096,847 | 4.60 | $7,370,811 | 30-Sep-09 | | Perkins Investment Management, LLC | 558,500 | 2.34 | $3,753,120 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 555,646 | 2.33 | $3,733,941 | 30-Sep-09 | | SOUTHPOINT CAPITAL ADVISORS LP | 496,500 | 2.08 | $3,336,480 | 30-Sep-09 | | Perimeter Capital Partners LLC | 452,827 | 1.90 | $3,042,997 | 30-Sep-09 | | STATE STREET CORPORATION | 432,894 | 1.81 | $2,909,047 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | BLAIR (WILLIAM) MUTUAL FUNDS, INC.-SMALL CAP GROWTH FUND | 1,093,400 | 4.58 | $6,461,994 | 31-Oct-09 | | DELAWARE VIP TREND SERIES | 603,200 | 2.53 | $4,053,504 | 30-Sep-09 | | JANUS PERKINS SMALL CAP VALUE FUND | 550,000 | 2.30 | $3,696,000 | 30-Sep-09 | | Managers AMG Funds-Timessquare Small Cap Growth Fund | 330,600 | 1.39 | $2,221,632 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 316,485 | 1.33 | $1,870,426 | 31-Oct-09 | | RiverSource Mid Cap Growth Fund | 302,428 | 1.27 | $2,177,481 | 31-Aug-09 | | FIDELITY SELECT PORTFOLIOS - MEDICAL EQUIPMENT & SYSTEMS | 300,000 | 1.26 | $1,773,000 | 31-Oct-09 | | BlackRock Global SmallCap Fund | 270,500 | 1.13 | $1,817,760 | 30-Sep-09 | | NORTHWESTERN MUTUAL SER FD-SMALL CAP GROWTH STOCK PORTF | 205,790 | .86 | $3,358,492 | 30-Jun-09 | | H&Q HEALTHCARE INVESTORS | 201,366 | .84 | $3,286,293 | 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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