|Apr 17, 2017||74.82||75.80||74.58||74.91||701,634|
|Apr 18, 2017||74.80||75.73||74.68||75.52||323,880|
|Apr 19, 2017||77.21||78.22||76.30||77.62||688,625|
|Apr 20, 2017||73.35||75.61||70.30||71.00||4,612,731|
|Apr 21, 2017||79.47||79.47||75.20||77.65||4,449,496|
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 Proofpoint, Inc. does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.