Week of August 30, 2010
| Date |
Open |
High |
Low |
Close |
Volume |
| Aug 30, 2010 |
2.58 |
2.64 |
2.58 |
2.60 |
57,829 |
| Aug 31, 2010 |
2.57 |
2.62 |
2.57 |
2.60 |
15,280 |
| Sep 1, 2010 |
2.59 |
2.73 |
2.55 |
2.68 |
99,642 |
| Sep 2, 2010 |
2.70 |
2.81 |
2.66 |
2.70 |
61,692 |
Year End Stock Prices

The historical stock information provided is for informational purposes only and is not intended for trading purposes. The historical stock information is provided by Mergent, a third party service, and Achillion Pharmaceuticals does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.
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