X0306 4/A 2017-05-18 2017-05-19 0 0000356171 TRICO BANCSHARES / TCBK 0001198492 REDDISH THOMAS J 0 1 0 0 EVP/Chief Financial Officer Common Stock 2017-05-18 4 M 0 1268 A 27878 D Common Stock 2017-05-18 4 F 0 598 35.04 D 27280 D Common Stock 2017-05-18 4 J 0 0 0 A 17482.62 I By ESOP Restricted Stock Units 2017-05-18 4 M 0 1268 0 D Common Stock 1268 3831 D Result of vesting of an RSU granted on May 18th, 2016 that was vested on May 19th, 2017. No transaction occurred among these shares. Intended only to reflect number of shares beneficially owned. This amendment to the reporting person's form 4 filed on May 19th, 2017 corrects the number of restricted stock units that converted on May 18, 2017 (reported in Table II) and the number of shares of common stock acquired as a result (Reported in Table I). No other changes made to the original form 4. /s/ Thomas J Reddish By Jason Cove Attorney-In-Fact 2017-05-22