
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| May 14, 2012 | 2.53 | 2.65 | 2.52 | 2.60 | 774,214 |
| May 15, 2012 | 2.58 | 2.64 | 2.55 | 2.55 | 520,112 |
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 Sonus Networks, Inc. does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.