| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | Ameriprise Financial, Inc. | 1,004,416 | 6.38 | $2,621,525 | 30-Sep-09 | | COLUMBIA WANGER ASSET MANAGEMENT, L.P. | 1,579,900 | 10.03 | $4,123,539 | 30-Sep-09 | | BALDWIN BROTHERS, INC. | 216,630 | 1.38 | $565,404 | 30-Sep-09 | | Winslow Management Company | 158,981 | 1.01 | $414,940 | 30-Sep-09 | | PUTNAM INVESTMENT MANAGEMENT, LLC | 97,750 | .62 | $255,127 | 30-Sep-09 | | PERKINS CAPITAL MANAGEMENT, INC. | 66,678 | .42 | $174,029 | 30-Sep-09 | | Timber Hill LLC | 18,189 | .12 | $47,473 | 30-Sep-09 | | Barclays Global Investors UK Holdings Ltd | 13,967 | .09 | $36,453 | 30-Sep-09 | | UBS AG | 5,398 | .03 | $14,088 | 30-Sep-09 | | LAWRENCE, EDWARD P. | 2,000 | .01 | $5,220 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | COLUMBIA ACORN SELECT FD | 1,480,000 | 9.40 | $3,833,200 | 30-Jun-09 | | RiverSource Mid Cap Growth Fund | 636,623 | 4.04 | $1,941,700 | 31-Aug-09 | | RiverSource VP Mid Cap Growth Fd | 262,757 | 1.67 | $680,540 | 30-Jun-09 | | WANGER ADVISOR TRUST-SELECT, VARIABLE SERIES | 188,900 | 1.20 | $489,251 | 30-Jun-09 | | PUTNAM FDS TR-PUTNAM SMALL CAP GROWTH FD | 75,760 | .48 | $152,277 | 31-Mar-09 | | Professionally Managed Portf-Winslow Green Solutions Fund | 62,829 | .40 | $163,983 | 30-Sep-09 | | ISHARES Russell Micro Cap (TM) Index Fund | 13,967 | .09 | $36,453 | 30-Sep-09 | | John Hancock Trust-Total Stock Market Index Tr | 636 | .00 | $1,278 | 31-Mar-09 |
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Value shown is computed using the security's price on the report date given.
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