X0306 4 2020-02-28 1 0001102112 PACWEST BANCORP PACW 0001533053 Boulden Laird 9701 WILSHIRE BOULEVARD, SUITE 700 BEVERLY HILLS CA 90212 0 1 0 0 Executive Vice President Common Stock 2020-02-28 4 F 0 655 31.64 D 72465 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 2,689 shares of restricted stock on February 28, 2020. Reflects market closing price on February 28, 2020. /s/ Laird Boulden 2020-03-03