| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Barclays Global Investors UK Holdings Ltd | 2,986,087 | 6.14 | $118,726,819 | 30-Sep-09 | | BLAIR (WILLIAM) & COMPANY, L.L.C. | 2,724,989 | 5.60 | $108,345,562 | 30-Sep-09 | | RUANE, CUNNIFF & GOLDFARB INC. | 2,087,784 | 4.29 | $83,010,291 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 1,983,370 | 4.08 | $78,858,791 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 1,913,774 | 3.93 | $76,091,654 | 30-Sep-09 | | FRANKLIN RESOURCES, INC | 1,890,907 | 3.89 | $75,182,462 | 30-Sep-09 | | NEXT CENTURY GROWTH INVESTORS LLC | 1,710,628 | 3.52 | $68,014,569 | 30-Sep-09 | | BROWN CAPITAL MANAGEMENT, INC. | 1,365,567 | 2.81 | $54,294,943 | 30-Sep-09 | | BAMCO INC. | 1,345,300 | 2.77 | $53,489,128 | 30-Sep-09 | | WELLS FARGO & COMPANY | 1,227,744 | 2.52 | $48,815,101 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN FD | 1,800,000 | 3.70 | $55,944,000 | 30-Jun-09 | | BARON GROWTH FUND | 1,100,000 | 2.26 | $34,188,000 | 30-Jun-09 | | VANGUARD EXPLORER FUND, INC. | 974,961 | 2.00 | $33,626,404 | 31-Jul-09 | | Wells Fargo Advantage Growth Fd | 685,000 | 1.41 | $27,235,600 | 30-Sep-09 | | ISHARES RUSSELL 2000 INDEX FD | 584,469 | 1.20 | $23,238,487 | 30-Sep-09 | | PRICE (T.ROWE) NEW HORIZONS FUND | 583,100 | 1.20 | $23,184,056 | 30-Sep-09 | | FRANKLIN STRATEGIC SERIES-FRANKLIN SMALL-MID CAP GROWTH | 559,600 | 1.15 | $22,249,696 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 549,273 | 1.13 | $19,576,089 | 31-Oct-09 | | VANGUARD SMALL-CAP INDEX FUND | 502,664 | 1.03 | $15,622,797 | 30-Jun-09 | | RAINIER SMALL/MIDCAP EQUITY PORTFOLIO | 445,135 | .91 | $13,834,795 | 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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