X0306 4 2018-01-10 0 0001365101 Primo Water Corp PRMW 0001247157 CASTANEDA MARK 101 NORTH CHERRY STREET SUITE 501 WINSTON-SALEM NC 27101 0 1 0 0 Chief Financial Officer Common Stock 2017-12-31 5 A 0 E 155 10.44 A 199499 D Common Stock 2018-01-10 4 M 0 116140 0.00 A 315639 D Common Stock 2018-01-10 4 M 0 265277 0.00 A 580916 D Common Stock 2018-01-10 4 F 0 150883 0.00 D 430033 D Deferred Stock Units 2018-01-10 4 M 0 116140 0.00 D Common Stock 116140 348420 D Deferred Stock Units 2018-01-10 4 M 0 265277 0.00 D Common Stock 265277 0 D These shares were acquired under the Primo Water Corporation Employee Stock Purchase Plan, as amended, in transactions that were exempt under both Rule 16b-3(d) and Rule 16b-3(c). Represents shares of common stock received upon vesting of deferred stock units on January 10, 2018. Shares withheld to satisfy tax withholding requirements on the vesting of deferred stock units on January 10, 2018. Each deferred stock unit has a value as of a given date equal to the fair market value of one share of Primo Water Corporation common stock. 116,140 deferred stock units were delivered on January 10, 2018. The remaining 348,420 deferred stock units are to be delivered on or around August 2018 in connection with Mr. Castaneda's retirement from the issuer in January 2018. 265,277 deferred stock units were delivered on January 10, 2018. /s/ David J. Mills by power of attorney for Mark Castaneda 2018-01-12