Material Agreement · Company Update

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549     FORM 8-K     CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported) October 31, 2022     Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter)       Delaware   1-5998   36-2668272 (State or Other Jurisdiction of Incorporation)   (Commission File Number)   (IRS Employer Identification No.)   1166 Avenue of the Americas , New York , NY   10036 (Address of Principal Executive Offices)   (Zip Code) Registrant’s telephone number, including area code ( 212 ) 345-5000     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:     ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)     ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)     ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))     ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading symbol(s)   Name of exchange on which registered Common Stock, par value $1.00 per share   MMC   New York Stock Exchange     Chicago Stock Exchange     London Stock Exchange Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company   ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐       Item 1.01 Entry into a Material Definitive Agreement On October 31, 2022, Marsh & McLennan Companies, Inc. (the “Company”) closed its previously announced sale of $500 million aggregate principal amount of its 5.750% Senior Notes due 2032 (the “2032 Notes”) and $500 million aggregate principal amount of its 6.250% Senior Notes due 2052 (the “2052 Notes” and, together with the 2032 Notes, the “Notes”). The Notes were registered under the Company’s effective shelf registration statement on Form S-3 (Registration No. 333-258194) under the Securities Act of 1933, as amended, as filed with the Securities and Exchange Commission on July 27, 2021 and were offered by means of the Company’s prospectus dated July 27, 2021, as supplemented by the prospectus supplement dated October 24, 2022. The Notes were issued on October 31, 2022 pursuant to the Indenture dated July 15, 2011, by and between the Company and The Bank of New York Mellon, as trustee (the “Trustee”), filed as Exhibit 4.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2011, as supplemented by the Fifteenth Supplemental Indenture (the “Supplemental Indenture”), dated as of October 31, 2022, by and between the Company and the Trustee, which is attached hereto as Exhibit 4.1 and is incorporated herein by reference. The forms of the 2032 Notes and 2052 Notes are attached hereto as Exhibits 4.2 and 4.3, respectively, and are incorporated herein by reference. The foregoing descriptions of the Supplemental Indenture and the Notes contained herein are summaries and are qualified in their entirety by the Supplemental Indenture and the forms of Notes attached hereto as Exhibits 4.1, 4.2 and 4.3, respectively.   Item 8.01 Other Events A copy of the opinion of Davis Polk & Wardwell LLP, counsel to the Company, relating to the legality of the Notes is filed as Exhibit 5.1 hereto.   Item 9.01 Financial Statements and Exhibits (d) Exhibits   Exhibit No.    Description   4.1    Fifteenth Supplemental Indenture, dated October 31, 2022, between Marsh & McLennan Companies, Inc. and The Bank of New York Mellon, as trustee.   4.2    Form of 5.750% Senior Notes due 2032 (included in Exhibit 4.1 above).   4.3    Form of 6.250% Senior Notes due 2052 (included in Exhibit 4.1 above).   5.1    Opinion of Davis Polk & Wardwell. 23.1    Consent of Davis Polk & Wardwell (included in Exhibit 5.1 above). 104    Cover Page Interactive Data File (embedded within the Inline XBRL document).   2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.   MARSH & McLENNAN COMPANIES, INC. By:   /s/ Connor Kuratek Name:   Connor Kuratek Title:   Deputy General Counsel & Corporate Secretary Date: October 31, 2022   3