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GREENE DAVID J & CO LLC
> CGNX
| Date | Name | Ticker | Shares | Change | Value | Change | Price |
| 09/30/2008 | COGNEX CORP | CGNX | 0 | -484,550 | 0 | -11,169,000 | |
| 06/30/2008 | COGNEX CORP | CGNX | 484,550 | 484,550 | 11,169,000 | 11,169,000 | $23.05 |
| 03/31/2008 | COGNEX CORP | CGNX | 644,167 | 644,167 | 14,062,000 | 14,062,000 | $21.83 |
| 12/31/2007 | COGNEX CORP | CGNX | 666,764 | 666,764 | 13,435,000 | 13,435,000 | $20.15 |
| 09/30/2007 | COGNEX CORP | CGNX | 417,281 | 417,281 | 7,411,000 | 7,411,000 | $17.76 |
| 06/30/2007 | COGNEX CORP | CGNX | 320,060 | 320,060 | 7,205,000 | 7,205,000 | $22.51 |
| 03/31/2007 | COGNEX CORP | CGNX | 320,000 | 320,000 | 6,934,000 | 6,934,000 | $21.67 |
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