Sec Form 3 Filing - Pilcher Ciafone Katherine @ Moelis & Co - 2023-10-01

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Pilcher Ciafone Katherine 2. Issuer Name and Ticker or Trading Symbol Moelis & Co [ MC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Operating Officer (Last) (First) (Middle) 399 PARK AVE 3. Date of Earliest Transaction (MM/DD/YY) 10/01/2023 (Street) NEW YORK, NY10022 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares 2018 Incentive RSUs ( 1 ) $ 0 ( 2 ) ( 2 ) Class A Common Stock, par value $0.01 1,281.7 D 2019 Incentive RSUs ( 1 ) $ 0 ( 3 ) ( 3 ) Class A Common Stock, par value $0.01 5,256.46 D 2020 Incentive RSUs ( 1 ) $ 0 ( 4 ) ( 4 ) Class A Common Stock, par value $0.01 4,060.77 D 2021 Incentive RSUs ( 1 ) $ 0 ( 5 ) ( 5 ) Class A Common Stock, par value $0.01 5,143.75 D 2022 Incentive RSUs ( 1 ) $ 0 ( 6 ) ( 6 ) Class A Common Stock, par value $0.01 9,145.74 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Pilcher Ciafone Katherine 399 PARK AVE NEW YORK, NY10022 Chief Operating Officer Signatures /s/ Osamu Watanabe as attorney-in-fact for Kate Pilcher Ciafone 10/02/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each Restricted Stock Unit represents the right to receive upon settlement either, at Moelis & Company's option, a share of Class A common stock or an amount of cash equal to the fair market value of such share. Grant of Restricted Stock Units pursuant to the Moelis & Company 2014 Omnibus Incentive Plan. ( 2 )Represents the amount of 2018 Incentive RSUs granted on February 14, 2019 plus any accrued dividend equivalent RSUs less any RSUs that have vested prior to the date of Ms. Pilcher Ciafone's appointment. The remaining RSUs vest on February 23, 2024. ( 3 )Represents the amount of 2019 Incentive RSUs granted on February 13, 2020 plus any accrued dividend equivalent RSUs less any RSUs that have vested prior to the date of Ms. Pilcher Ciafone's appointment. The remaining RSUs vest in equal installments on February 23, 2024 and February 23, 2025. ( 4 )Represents the amount of 2020 Incentive RSUs granted on February 19, 2021 plus any accrued dividend equivalent RSUs less any RSUs that have vested prior to the date of Ms. Pilcher Ciafone's appointment. The remaining RSUs vest in equal installments on February 23, 2024, February 23, 2025 and February 23, 2026. ( 5 )Represents the amount of 2021 Incentive RSUs granted on February 17, 2022 plus any accrued dividend equivalent RSUs less any RSUs that have vested prior to the date of Ms. Pilcher Ciafone's appointment. The remaining RSUs vest in equal installments on February 23, 2024, February 23, 2025, February 23, 2026 and February 23, 2027. ( 6 )Represents the amount of 2022 Incentive RSUs granted on February 16, 2023 plus any accrued dividend equivalent RSUs prior to the date of Ms. Pilcher Ciafone's appointment.The RSUs vest in equal installments on February 23, 2024, February 23, 2025, February 23, 2026, February 23, 2027 and February 23, 2028.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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