|Jul 17, 2017||89.93||89.93||87.47||88.62||843,228|
|Jul 18, 2017||88.13||90.08||87.26||89.86||382,868|
|Jul 19, 2017||89.87||93.18||89.60||93.17||601,576|
|Jul 20, 2017||92.64||93.43||91.25||92.48||773,094|
|Jul 21, 2017||92.97||92.97||91.19||91.49||499,003|
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.