X0306 4 2020-02-28 1 0001102112 PACWEST BANCORP PACW 0001328806 Christian Mark A 9701 WILSHIRE BOULEVARD, SUITE 700 BEVERLY HILLS CA 90212 0 1 0 0 EVP, Operations/Systems Mgr Common Stock 2020-02-28 4 F 0 1741 31.64 D 22482 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 vesting of 5,034 shares of restricted stock on February 28, 2020. Reflects market closing price on February 28, 2020. /s/ Mark Christian 2020-03-03