| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | MAIRS & POWER INC | 4,007,898 | 8.24 | $83,765,068 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 3,849,334 | 7.91 | $80,451,080 | 30-Sep-09 | | FMR LLC | 3,164,515 | 6.51 | $66,138,363 | 30-Sep-09 | | VANGUARD GROUP, INC. (THE) | 2,206,866 | 4.54 | $46,123,499 | 30-Sep-09 | | ARTISAN PARTNERS LIMITED PARTNERSHIP | 2,178,100 | 4.48 | $45,522,290 | 30-Sep-09 | | FISHER INVESTMENTS, INC. | 1,851,356 | 3.81 | $38,693,340 | 30-Sep-09 | | BANK OF AMERICA CORPORATION | 1,801,072 | 3.70 | $37,642,404 | 30-Sep-09 | | Bank of New York Mellon Corporation | 1,674,617 | 3.44 | $34,999,495 | 30-Sep-09 | | GOLDMAN SACHS GROUP INC | 1,427,113 | 2.93 | $29,826,661 | 30-Sep-09 | | STATE STREET CORPORATION | 1,219,457 | 2.51 | $25,486,651 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | MAIRS & POWER GROWTH FUND INC | 3,100,000 | 6.37 | $64,790,000 | 30-Sep-09 | | FIDELITY LEVERAGED COMPANY STOCK FUND | 1,582,241 | 3.25 | $31,897,978 | 31-Jul-09 | | FIDELITY ADVISOR LEVERAGED COMPANY STOCK FUND | 1,270,664 | 2.61 | $25,616,586 | 31-Jul-09 | | ARTISAN SMALL CAP VALUE FUND | 1,179,700 | 2.43 | $22,142,969 | 30-Jun-09 | | ISHARES RUSSELL 2000 INDEX FD | 714,052 | 1.47 | $14,923,686 | 30-Sep-09 | | ISHARES S&P SMALLCAP 600 INDEX FD | 629,845 | 1.29 | $12,036,337 | 31-Oct-09 | | GOLDMAN SACHS SMALL CAP VALUE FUND | 602,542 | 1.24 | $11,309,713 | 30-Jun-09 | | VANGUARD SMALL-CAP INDEX FUND | 593,068 | 1.22 | $11,131,886 | 30-Jun-09 | | VANGUARD TOTAL STOCK MARKET INDEX FUND | 454,741 | .93 | $8,535,488 | 30-Jun-09 | | ISHARES RUSSELL 2000 VALUE INDEX FD | 409,643 | .84 | $8,561,538 | 30-Sep-09 |
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Value shown is computed using the security's price on the report date given.
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