X0306 4 2017-05-12 0 0001102112 PACWEST BANCORP PACW 0001256320 CORSINI BRYAN M 9701 WILSHIRE BOULEVARD, SUITE 700 BEVERLY HILLS CA 90212 0 1 0 0 EVP, Chief Credit Officer Common Stock 2017-05-12 4 F 0 3797 49.04 D 65055 D Represents the number of shares of Issuer's common stock that Reporting Person surrendered to Issuer for the satisfaction of Reporting Person's tax withholding obligations upon the release of 11,250 shares of restricted stock on May 12, 2017. Reflects market closing price on May 12, 2017. /s/ Bryan Corsini 2017-05-15