| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | FRANKLIN RESOURCES, INC | 5,368,254 | 8.28 | $21,741,428 | 30-Sep-09 | | GRUBER & MCBAINE CAPITAL MANAGEMENT LLC | 4,655,870 | 7.18 | $18,856,273 | 30-Sep-09 | | SAM Sustainable Asset Management Ltd | 3,307,700 | 5.10 | $13,396,185 | 30-Sep-09 | | DEUTSCHE BANK AKTIENGESELLSCHAFT | 2,619,197 | 4.04 | $10,607,747 | 30-Sep-09 | | FACTORY MUTUAL INSURANCE CO | 2,014,200 | 3.11 | $8,157,510 | 30-Sep-09 | | KOPP INVESTMENT ADVISORS. INC. | 1,949,403 | 3.01 | $7,895,082 | 30-Sep-09 | | KALMAR INVESTMENTS INC. | 1,781,311 | 2.75 | $7,214,309 | 30-Sep-09 | | AGF FUNDS INC | 996,784 | 1.54 | $4,036,975 | 30-Sep-09 | | Rock Point Advisors, LLC | 882,515 | 1.36 | $3,574,185 | 30-Sep-09 | | JUPITER ASSET MANAGEMENT LIMITED | 702,057 | 1.08 | $2,843,330 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | DWS Global Opportunities Fd | 979,500 | 1.51 | $1,733,715 | 31-May-09 | | DWS Var Ser I-DWS Global Opportunities VIP | 329,700 | .51 | $787,983 | 30-Jun-09 | | DFA Investment Dimensions-Canadian Small Company Series | 176,001 | .27 | $397,762 | 31-Jul-09 | | DWS Balanced Fd | 102,700 | .16 | $232,102 | 31-Jul-09 | | Blackrock EcoSolutions Investment Trust (BQR) | 90,000 | .14 | $203,400 | 31-Jul-09 | | KALMAR POOLED INVESTMENT TR-GROWTH-WITH-VALUE-SMALLCAP F | 77,190 | .12 | $312,619 | 30-Sep-09 | | DFA International Core Equity Portfolio | 69,500 | .11 | $125,100 | 30-Apr-09 | | DWS Advisor Fds III-DWS Life Cycle Long Range Fd | 44,900 | .07 | $107,311 | 30-Jun-09 | | PUTNAM ASSET ALLOCATION FUNDS-GROWTH PORTFOLIO | 32,000 | .05 | $76,480 | 30-Jun-09 | | DWS Var Ser II-DWS Balanced VIP | 28,800 | .04 | $68,832 | 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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