| Date | Open | Close | Volume |
| 2010-03-03 | 38.64 | 38.96 | 2800 |
| 2010-03-02 | 38.95 | 38.60 | 2100 |
| 2010-03-01 | 38.39 | 38.38 | 900 |
| 2010-02-26 | 38.30 | 38.30 | 200 |
| 2010-02-25 | 38.54 | 38.54 | 000 |
| 2010-02-24 | 38.54 | 38.54 | 000 |
| 2010-02-23 | 38.54 | 38.54 | 000 |
| 2010-02-22 | 38.54 | 38.54 | 200 |
| 2010-02-19 | 38.32 | 38.32 | 600 |
| 2010-02-18 | 38.43 | 38.43 | 300 |
| 2010-02-17 | 38.32 | 38.32 | 000 |
| 2010-02-16 | 38.20 | 38.32 | 4600 |
| 2010-02-12 | 38.12 | 38.14 | 200 |
| 2010-02-11 | 38.14 | 38.14 | 300 |
| 2010-02-10 | 37.99 | 37.99 | 100 |
| 2010-02-09 | 38.04 | 38.39 | 300 |
| 2010-02-08 | 38.00 | 37.92 | 200 |
| 2010-02-05 | 37.78 | 37.62 | 2000 |
| 2010-02-04 | 38.41 | 38.41 | 1100 |
| 2010-02-03 | 38.49 | 38.49 | 000 |
| 2010-02-02 | 38.49 | 38.49 | 300 |
| 2010-02-01 | 38.37 | 38.37 | 200 |
| 2010-01-29 | 39.00 | 38.13 | 1400 |
| 2010-01-28 | 38.10 | 38.13 | 1000 |
| 2010-01-27 | 38.34 | 38.34 | 100 |
| 2010-01-26 | 38.24 | 38.26 | 400 |
| 2010-01-25 | 38.14 | 38.14 | 000 |
| 2010-01-22 | 38.42 | 38.14 | 500 |
| 2010-01-21 | 38.35 | 38.61 | 1100 |
| 2010-01-20 | 38.61 | 38.61 | 600 |
| 2010-01-19 | 38.93 | 38.93 | 100 |
| 2010-01-15 | 38.95 | 38.68 | 1500 |
Other Companies: 05-21-2008-1 | VCA Antech Inc. | 11-17-2008
Blue Coat Systems Inc. | 12-06-2008 | Emergent BioSolutions, Inc.