| TOP INSTITUTIONAL HOLDERS |
| Holder | Shares | % Out | Value* | Reported | | RIMA MANAGEMENT LLC | 1,103,222 | 5.69 | $2,945,602 | 30-Sep-09 | | GOLDMAN CAPITAL MANAGEMENT, INC. | 756,000 | 3.90 | $2,018,520 | 30-Sep-09 | | NEEDHAM INVESTMENT MANAGEMENT, L.L.C. | 430,500 | 2.22 | $1,149,435 | 30-Sep-09 | | MARXE, AUSTIN W. & GREENHOUSE, DAVID M. | 2,195,900 | 11.33 | $5,863,053 | 30-Sep-09 | | INGALLS & SNYDER | 382,438 | 1.97 | $1,021,109 | 30-Sep-09 | | RENAISSANCE TECHNOLOGIES, LLC | 27,900 | .14 | $74,493 | 30-Sep-09 | | GRT CAPITAL PARTNERS, LLC | 20,700 | .11 | $55,269 | 30-Sep-09 | | Linscomb & Williams Inc. | 10,000 | .05 | $26,700 | 30-Sep-09 | | UBS AG | 625 | .00 | $1,668 | 30-Sep-09 |
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| Holder | Shares | % Out | Value* | Reported | | NEEDHAM GROWTH FUND | 87,500 | .45 | $233,625 | 30-Sep-09 | | NEEDHAM SMALL CAP GROWTH FUND | 44,000 | .23 | $117,480 | 30-Sep-09 | | NEEDHAM AGGRESSIVE GROWTH FUND | 14,000 | .07 | $37,380 | 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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