| Date | Open | Close | Volume |
| 2010-03-03 | 4.03 | 3.63 | 514100 |
| 2010-03-02 | 3.96 | 4.02 | 361100 |
| 2010-03-01 | 4.02 | 4.22 | 93800 |
| 2010-02-26 | 4.03 | 4.00 | 211800 |
| 2010-02-25 | 4.15 | 4.03 | 179700 |
| 2010-02-24 | 4.17 | 4.16 | 55000 |
| 2010-02-23 | 4.19 | 4.16 | 125100 |
| 2010-02-22 | 4.16 | 4.18 | 83100 |
| 2010-02-19 | 4.19 | 4.15 | 135000 |
| 2010-02-18 | 4.24 | 4.19 | 67400 |
| 2010-02-17 | 4.20 | 4.25 | 78100 |
| 2010-02-16 | 4.37 | 4.17 | 113400 |
| 2010-02-12 | 4.32 | 4.36 | 123800 |
| 2010-02-11 | 4.13 | 4.34 | 307200 |
| 2010-02-10 | 4.15 | 4.13 | 144100 |
| 2010-02-09 | 4.15 | 4.16 | 76900 |
| 2010-02-08 | 4.04 | 4.12 | 183200 |
| 2010-02-05 | 4.18 | 4.05 | 443300 |
| 2010-02-04 | 4.15 | 4.18 | 251800 |
| 2010-02-03 | 4.12 | 4.15 | 135000 |
| 2010-02-02 | 4.11 | 4.12 | 90000 |
| 2010-02-01 | 4.08 | 4.10 | 119700 |
| 2010-01-29 | 4.05 | 4.09 | 197300 |
| 2010-01-28 | 4.19 | 4.02 | 322700 |
| 2010-01-27 | 4.13 | 4.17 | 409200 |
| 2010-01-26 | 4.02 | 4.15 | 133500 |
| 2010-01-25 | 4.10 | 4.02 | 182500 |
| 2010-01-22 | 4.14 | 4.08 | 334700 |
| 2010-01-21 | 4.02 | 4.12 | 455100 |
| 2010-01-20 | 4.10 | 4.03 | 129800 |
| 2010-01-19 | 4.19 | 4.10 | 200000 |
| 2010-01-15 | 4.14 | 4.20 | 418500 |
Other Companies: 01-02-2008-1 | Waters Corp. | 09-18-2008
Senesco Technologies Inc. | 10-29-2009 | Intel Corporation