| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | MARXE, AUSTIN W. & GREENHOUSE, DAVID M. | 911,261 | 5.80 | $391,842 | 30-Sep-09 | | ARDSLEY ADVISORY PARTNERS | 874,289 | 5.57 | $375,944 | 30-Sep-09 | | AGF FUNDS INC | 447,500 | 2.85 | $192,425 | 30-Sep-09 | | Black River Asset Management LLC | 433,300 | 2.76 | $186,319 | 30-Sep-09 | | DIMENSIONAL FUND ADVISORS LP | 181,490 | 1.16 | $78,040 | 30-Sep-09 | | Great-West Life Assurance Company | 163,800 | 1.04 | $70,434 | 30-Sep-09 | | I.G. INVESTMENT MANAGEMENT, LTD | 117,800 | .75 | $50,654 | 30-Sep-09 | | Robeco Institutional Asset Management B V | 50,000 | .32 | $21,500 | 30-Sep-09 | | MORGAN STANLEY | 46,702 | .30 | $20,081 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 45,500 | .29 | $19,565 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | DFA U.S. MICRO CAP SERIES | 95,593 | .61 | $47,796 | 30-Apr-09 | | DFA U.S. SMALL CAP SERIES | 29,836 | .19 | $14,918 | 30-Apr-09 | | GABELLI SMALL CAP GROWTH FUND | 25,000 | .16 | $10,750 | 30-Sep-09 | | SPARTAN EXTENDED MARKET INDEX FUND | 10,176 | .06 | $4,375 | 30-Sep-09 | | DFA U.S. Core Equity 2 Portfolio | 4,361 | .03 | $2,180 | 30-Apr-09 | | DFA U.S. Vector Equity Portfolio | 2,500 | .02 | $1,250 | 30-Apr-09 | | DFA U.S. Core Equity 1 Portfolio | 600 | .00 | $300 | 30-Apr-09 | | DFA Investment Dimensions-DFA CSTG&E Social Core Equity 2 Po | 100 | .00 | $48 | 31-Jul-09 |
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Value shown is computed using the security's price on the report date given.
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