|Feb 13, 2017||2.47||2.49||2.34||2.37||702,677|
|Feb 14, 2017||2.35||2.45||2.31||2.45||725,377|
|Feb 15, 2017||2.42||2.54||2.42||2.50||1,481,860|
|Feb 16, 2017||2.49||2.59||2.40||2.50||1,092,640|
|Feb 17, 2017||2.61||2.61||2.41||2.43||1,270,090|
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 ImmunoGen, Inc. does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.