X0306 4 2020-02-20 0 0001596967 Moelis & Co MC 0001604685 MAHMOODZADEGAN NAVID C/O MOELIS & COMPANY 399 PARK AVENUE, 5TH FLOOR NEW YORK NY 10022 1 1 0 0 Co-President, MD Class A Common Stock 2020-02-20 4 M 0 148537.24 A 148537.24 D Class A Common Stock 2020-02-20 4 F 0 1636.24 36.72 D 146901 D Class A Common Stock 2020-02-20 4 S 0 74269 36.72 D 72632 D 2014 Incentive RSUs Granted in 2015 2020-02-20 4 M 0 52274.11 0.00 D Class A Common Stock 52274.11 0 D 2015 Incentive Restricted Stock Units 2020-02-20 4 M 0 28496.48 0.00 D Class A Common Stock 28496.48 28496.48 D 2016 Incentive Restricted Stock Units 2020-02-20 4 M 0 23206.11 0.00 D Class A Common Stock 23206.11 46412.23 D 2017 Incentive Restricted Stock Units 2020-02-20 4 M 0 18885.3 0.00 D Class A Common Stock 18885.3 56658.3 D 2018 Incentive Restricted Stock Units 2020-02-20 4 M 0 25675.24 0.00 D Class A Common Stock 25675.24 102703.13 D Shares of Class A Common Stock of Moelis & Company ("Class A Common Stock") were acquired upon settlement of Restricted Stock Units (RSUs). Class A Common Stock sold in order to raise proceeds to satisfy tax obligations triggered by delivery of the Class A Common Stock upon settlement of the RSUs. Federal taxes are not withheld from Class A Common Stock delivered upon settlement of RSUs to Mr. Mahmoodzadegan because he is a partner in Moelis & Company Partner Holdings LP. This number excludes (i) 432,095 unvested RSUs granted to Mr. Mahmoodzadegan as incentive compensation for fiscal years 2015 through 2019 and (ii) 1,195,848 shares of Class A Common Stock issuable in exchange for Moelis & Group LP Class A partnership units held by certain trusts, of which Mr. Mahmoodzadegan or his immediate family members are beneficiaries. The unvested RSUs represent the right to receive upon settlement either, at Moelis & Company's option, a share of Class A Common Stock or an amount in cash equal to the fair market value of such share. The vesting schedule applicable to these unvested RSUs can be found on the Form 4s previously filed in connection with the grant of such RSUs. The RSUs were settled for Class A Common Stock on February 20, 2020. /s/ Osamu Watanabe as attorney-in-fact for Navid Mahmoodzadegan 2020-02-24