MRSH SEC-Einreichungen - Marsh & McLennan Companies, Inc.- Jahresbericht, Proxy Statement, Prospekt

Basisstatistiken

LEI	549300XMP3KDCKJXIU47
CIK	62709

SEC Filings

All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Marsh & McLennan Companies, Inc.

SEC Filings (Chronological Order)

Auf dieser Seite finden Sie eine vollständige, chronologische Liste der SEC-Einreichungen, mit Ausnahme der Eigentumseinreichungen, die wir an anderer Stelle bereitstellen.

June 4, 2026	EX-10.1	EXECUTION VERSION [[8499770]] US$4,250,000,000 AMENDED AND RESTATED 5 YEAR CREDIT AGREEMENT dated as of June 2, 2026 Among Marsh & McLennan Companies, Inc. Calm Treasury Holdings Limited, MMC Securities LLC, and the Designated Subsidiaries referred t exhibit101marsh-2026amen EXECUTION VERSION [[8499770]] US$4,250,000,000 AMENDED AND RESTATED 5 YEAR CREDIT AGREEMENT dated as of June 2, 2026 Among Marsh & McLennan Companies, Inc.
June 4, 2026	8-K	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 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) June 2, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
May 22, 2026	8-K	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 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) May 21, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
April 16, 2026	8-K	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 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) April 16, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
April 16, 2026	EX-10.4	John Q. Doyle John Q. Doyle President and Chief Executive Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.corporate.marsh.com February 24, 2026 Dean Klisura Electronic Delivery Subject: Terms of Employment Dear Dean, This third amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. (“Marsh”) as sub
April 16, 2026	EX-10.5	John Q. Doyle John Q. Doyle President and Chief Executive Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.corporate.marsh.com February 24, 2026 Patrick Tomlinson Electronic Delivery Subject: Terms of Employment Dear Pat, This second amendment to the Letter Agreement, dated March 20, 2024, between you and Marsh & McLennan Companies, Inc. (“Marsh”) as
April 16, 2026	EX-10.3	John Q. Doyle John Q. Doyle President and Chief Executive Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.corporate.marsh.com Marsh 6, 2026 Martin South Hand Delivery Subject: Terms of Employment Dear Martin, This amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. (“Marsh”) as subsequently amen
April 16, 2026	EX-10.2	John Q. Doyle John Q. Doyle President and Chief Executive Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.corporate.marsh.com February 24, 2026 Mark C. McGivney Electronic delivery Subject: Terms of Employment Dear Mark, This sixth amendment to the Letter Agreement, dated September 17, 2015, between you and Marsh & McLennan Companies, Inc. (“Marsh”)
April 16, 2026	EX-99.1	Marsh 212 345 5000 www.corporate.marsh.com Marsh 212 345 5000 www.corporate.marsh.com News release Exhibit 99.1 Marsh reports strong first quarter 2026 results •Revenue Growth of 8%; Underlying Revenue Growth of 4% •GAAP Operating Income Decreases 12%; Adjusted Operating Income Increases 8% •First Quarter GAAP EPS of $2.36; Adjusted EPS Increases 8% to $3.29 NEW YORK, April 16, 2026 – Marsh (NYSE: MRSH), a global leader in risk, reinsuranc
April 16, 2026	EX-10.9	MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2026 THROUGH FEBRUARY 1, 2027 TABLE OF CONTENTS MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2026 THROUGH FEBRUARY 1, 2027 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 7 V. DEFINITIONS 8 VI. ADDITIONAL PROVISIONS 9 VII. QUESTIONS AND ADDITIONAL INFORMATION
April 16, 2026	EX-10.6	MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS STOCK OPTION AWARDS GRANTED ON [DATE], 2026 TABLE OF CONTENTS MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF STOCK OPTION AWARDS GRANTED ON [DATE], 2026 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 8 V. DEFINITIONS 9 VI. ADDITIONAL PROVISIONS 10 VII. QUESTIONS AND ADDITIONAL INFORMATION 12 I. BACKGROUND A Stock Option award (“Aw
April 16, 2026	EX-10.10	MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2026 THROUGH FEBRUARY 1, 2027 TABLE OF CONTENTS MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2026 THROUGH FEBRUARY 1, 2027 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 7 V. DEFINITIONS 8 VI. ADDITIONAL PROVISIONS 9 VII. QUESTIONS AND ADDITIONAL INFORMATION
April 16, 2026	EX-10.7	MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS PERFORMANCE STOCK UNIT AWARDS MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF PERFORMANCE STOCK UNIT AWARDS GRANTED ON [DATE], 2026 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 11 V. DEFINITIONS 13 VI. ADDITIONAL PROVISIONS 14 VII. QUESTIONS AND ADDITIONAL INFORMATION 17 I. BACKGROUND A Performance
April 16, 2026	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2026 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the Amer
April 16, 2026	EX-10.1	Steven A. Mills Steven A. Mills Chairman of the Compensation Committee of the Board of Directors Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.corporate.marsh.com February 24, 2026 John Q. Doyle Electronic Delivery Subject: Terms of Employment Dear John, This fourth amendment to the Letter Agreement, dated November 10, 2022, between you and Marsh & McLennan
April 16, 2026	EX-10.8	MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2026 TABLE OF CONTENTS MARSH & McLENNAN COMPANIES, INC. AMENDED AND RESTATED 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2026 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 11 V. DEFINITIONS 12 VI. ADDITIONAL PROVISIONS 13 VII. QUESTIONS AND ADDITIONAL INFORMATION 16 I. BACKGROUND An award (“Awa
April 14, 2026	EX-99.1	+1 212 345 5000 Exhibit 99.1 News release Marsh +1 212 345 5000 Media contact: Investor contact: Erick Gustafson +1 202 263 7788 [email protected] Jay Gelb +1 212 345 5411 [email protected] Marsh appoints Mark McGivney as Executive Vice President and Chief Operating Officer in addition to Chief Financial Officer NEW YORK, April 14, 2026 – Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capit
April 14, 2026	8-K	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 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) April 8, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
March 31, 2026	DEF 14A	DEFINITIVE PROXY STATEMENT COURTESY PDF Notice of Annual Meeting of Stockholders and Proxy Statement 2026 Marsh is a global professional services firm helping clients navigate complexity and seize opportunities with market- leading, specialized capabilities across risk, reinsurance and capital, people and investments, and management consulting.
March 31, 2026	ARS	ARS Annual Report 2025 Thriving as one4 4 Marsh is a global professional services firm helping clients navigate complexity and seize opportunities with market- leading, specialized capabilities across risk, reinsurance and capital, people and investments, and management consulting.
March 31, 2026	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi
March 31, 2026	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro
March 10, 2026	EX-99.1	1 Marsh T+1 212 345 5000 News release Exhibit 99.1 Media Contact: Erick Gustafson +1 202 263 7788 [email protected] Investor Contact: Jay Gelb +1 212 345 1569 [email protected] Marsh appoints Nick Studer President and CEO of Marsh Risk and Martin South Chief Client Officer of Marsh NEW YORK, March 10, 2026 – Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and in
March 10, 2026	8-K	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 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) March 10, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
February 25, 2026	EX-99.1	1 Marsh T+1 212 345 5000 News release Exhibit 99.1 Media Contact: Erick Gustafson +1 202 263 7788 [email protected] Investor Contact: Jay Gelb +1 212 345 1569 [email protected] Marsh appoints Peter Harrison to its Board of Directors NEW YORK, February 25, 2026 ─ Marsh (NYSE: MRSH), a global leader in risk, reinsurance and capital, people and investments, and management consulting, today app
February 25, 2026	8-K	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 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) February 25, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Com
February 19, 2026	EX-1.1	Marsh & McLennan Companies, Inc. $600,000,000 aggregate principal amount of 4.950% Senior Notes due 2036 UNDERWRITING AGREEMENT February 11, 2026 EX-1.1 Exhibit 1.1 Marsh & McLennan Companies, Inc. $600,000,000 aggregate principal amount of 4.950% Senior Notes due 2036 UNDERWRITING AGREEMENT February 11, 2026 February 11, 2026 Citigroup Global Markets Inc. J.P. Morgan Securities LLC Wells Fargo Securities, LLC For themselves and as Representatives of the other Underwriters named in Schedule I hereto Citigroup Global Markets Inc. 388 Greenwi
February 19, 2026	EX-4.1	MARSH & McLENNAN COMPANIES, INC., The Bank of New York Mellon, TWENTY-FIRST SUPPLEMENTAL INDENTURE Dated as of February 19, 2026 $600,000,000 aggregate principal amount of 4.950% Senior Notes due 2036 EX-4.1 Exhibit 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee TWENTY-FIRST SUPPLEMENTAL INDENTURE Dated as of February 19, 2026 $600,000,000 aggregate principal amount of 4.950% Senior Notes due 2036 TWENTY-FIRST SUPPLEMENTAL INDENTURE, dated as of February 19, 2026, between MARSH & McLENNAN COMPANIES, INC., a Delaware corporation (the “Issuer”), and THE BAN
February 19, 2026	8-K	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): February 19, 2026 Marsh & McLenna 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): February 19, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Co
February 13, 2026	EX-FILING FEES	Security Type Calculation of Filing Fee Tables S-3 MARSH & MCLENNAN COMPANIES, INC. Table 1: Newly Registered and Carry Forward Securities ☐Not Applicable Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Fo
February 13, 2026	424B2	Marsh & McLennan Companies, Inc. $600,000,000 4.950% Senior Notes due 2036 424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No.
February 10, 2026	EX-FILING FEES	CALCULATION OF FILING FEE TABLES Marsh & McLennan Companies, Inc. Table 1: Newly Registered Securities Ex-Filing Fees CALCULATION OF FILING FEE TABLES S-8 Marsh & McLennan Companies, Inc.
February 10, 2026	S-8	As filed with the Securities and Exchange Commission on February 10, 2026 As filed with the Securities and Exchange Commission on February 10, 2026 Registration No.
February 9, 2026	EX-21.1	Marsh & McLennan Companies, Inc. as of February 9, 2026 Exhibit 21 - MMC Subsidiary List Marsh & McLennan Companies, Inc. as of February 9, 2026 Company Name Country 1 A. Constantinidi & CIA. S.C. Uruguay 2 Advance Asset Management Limited Australia 3 Aermetric Technology Group, Inc United States 4 AFCO Premium Credit LLC United States 5 Altius Associates GP Ltd Guernsey 6 Altius Associates Special Partner GP Limited Guernsey 7 Altius Client (GP) II LL
February 9, 2026	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2025 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 1-5998 Marsh & McLennan Companies, Inc. (Exact name of registr
February 9, 2026	EX-97.1	Marsh & McLennan Companies, Inc. Compensation Clawback Policy Marsh & McLennan Companies, Inc. Compensation Clawback Policy 1.Purpose It is the purpose of this Compensation Clawback Policy (the “Policy”) to set forth the guidelines for the recoupment of certain incentive-based compensation in the event of an accounting restatement resulting from noncompliance with financial reporting requirements under U.S. federal securities laws. This Policy is intended to
February 9, 2026	EX-19.2	2 TRANSACTIONS IN MARSH MCLENNAN SECURITIES BY DIRECTORS AND EXECUTIVE OFFICERS TRANSACTIONS IN MARSH MCLENNAN SECURITIES BY DIRECTORS AND EXECUTIVE OFFICERS POLICY OVERVIEW PURPOSE This Policy is designed to help •prevent the potentially severe personal legal consequences to directors and executive officers of insider trading violations and •meet personal regulatory reporting obligations in the U.
January 29, 2026	8-K	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 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) January 29, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
January 29, 2026	EX-99.1	Marsh 212 345 5000 www.corporate.marsh.com Marsh 212 345 5000 www.corporate.marsh.com News release Exhibit 99.1 Marsh reports solid fourth quarter and full-year 2025 results •Full-Year Revenue Growth of 10%; Underlying Revenue Growth of 4% •Full-Year GAAP Operating Income Increases 7%; Adjusted Operating Income Increases 11% •Full-Year GAAP EPS of $8.43; Adjusted EPS Increases 9% to $9.75 •Fourth Quarter GAAP EPS of $1.68; Adjusted EPS Inc
January 14, 2026	EX-3.1	AMENDED AND RESTATED BYLAWS OF MARSH & MCLENNAN COMPANIES, INC. ADOPTED ON JANUARY 14, 2026 i TABLE OF CONTENTS PAGE ARTICLE I. OFFICES AND RECORDS ......................................................................................1 ARTICLE II. ME exhibit31 AMENDED AND RESTATED BYLAWS OF MARSH & MCLENNAN COMPANIES, INC. ADOPTED ON JANUARY 14, 2026 i TABLE OF CONTENTS PAGE ARTICLE I. OFFICES AND RECORDS ......................................................................................1 ARTICLE II. MEETINGS OF THE STOCKHOLDERS ..............................................................1 ARTICLE III. DIRECTOR NOMINATIONS AND PROPOSALS O
January 14, 2026	8-K	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 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) January 14, 2026 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Comm
October 16, 2025	8-K	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 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 16, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Comm
October 16, 2025	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 +1 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 +1 212 345 5000 www.
October 16, 2025	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2025 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the
September 2, 2025	144	144 144 0001580963 XXXXXXXX LIVE 0000062709 MARSH & MCLENNAN COMPANIES, INC. 001-05998 1166 AVENUE OF THE AMERICAS NEW YORK NY 10036 2123455000 Doyle John Q Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21079 4334896.35 491624043 09/02/2025 NYSE Common 09/02/2025 Options Granted - 05/01/2016 Issuer N 21079 09/02/2025 Cash N John Q. Doyle 1166 Avenue of th
July 17, 2025	8-K	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 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) July 17, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
July 17, 2025	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 +1 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 +1 212 345 5000 www.
July 17, 2025	EX-10.2	Description of Compensation Arrangements for Independent Directors of Marsh & McLennan Companies, Inc. effective June 1, 2025. Description of Compensation Arrangements for Independent Directors Effective June 1, 2025, which will be the start of the Board’s annual pay cycle, Marsh & McLennan Companies, Inc.
July 17, 2025	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2025 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the Ameri
July 9, 2025	EX-99.1	1 Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
July 9, 2025	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits 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) July 9, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
June 24, 2025	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2024 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2024 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN AGENCY 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: MARS
June 24, 2025	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2024 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2024 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN COMPANIES 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: M
May 19, 2025	8-K	Submission of Matters to a Vote of Security Holders 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) May 19, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
April 17, 2025	EX-10.3	Letter Agreement Amendment, dated February 18, 2025, between Marsh & McLennan Companies, Inc. and Martin South. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 18, 2025 Martin South Electronic Delivery Subject: Terms of Employment Dear Martin, This second amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. as subsequently amended on February 22, 202
April 17, 2025	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) April 17, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
April 17, 2025	EX-10.5	Letter Agreement Amendment, dated February 18, 2025, between Marsh & McLennan Companies, Inc. and Patrick Tomlinson. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 18, 2025 Patrick Tomlinson Electronic Delivery Subject: Terms of Employment Dear Pat, This amendment to the Letter Agreement, dated March 20, 2024, between you and Marsh & McLennan Companies, Inc. (taken together, the “Letter Agreement”), revises
April 17, 2025	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2025 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the Amer
April 17, 2025	EX-10.6	Letter Agreement, effective as of April 1, 2024, between Marsh & McLennan Companies, Inc. and Patrick Tomlinson. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com March 20, 2024 Patrick Tomlinson Hand Delivery Subject: Terms of Employment Dear Pat, This letter agreement sets forth the terms of your continued employment by Mercer Consulting Group, Inc. (“Mercer”) as its President and Chief Executive Officer. This pos
April 17, 2025	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
April 17, 2025	EX-10.8	Form of Stock Option Award, dated as of February 18, 2025, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF STOCK OPTION AWARDS GRANTED ON [DATE], 2025 TABLE OF CONTENTS Page I. BACKGROUND...................................................................................................1 II. AWARDS.............................................................................................................1 III.
April 17, 2025	EX-10.10	Form of Restricted Stock Unit Award, dated as of February 18, 2025, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2025 TABLE OF CONTENTS Page I. BACKGROUND..............................................................................1 II. AWARDS......................................................................................1 III. EMPLOYMENT EVENTS..................
April 17, 2025	EX-10.4	Letter Agreement Amendment, dated February 18, 2025, between Marsh & McLennan Companies, Inc. and Dean M. Klisura. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 18, 2025 Dean Klisura Electronic Delivery Subject: Terms of Employment Dear Dean, This second amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. as subsequently amended on February 22, 2024
April 17, 2025	EX-10.1	Letter Agreement Amendment, dated February 18, 2025, between Marsh & McLennan Companies, Inc. and John Q. Doyle. Steven A. Mills Chairman of the Compensation Committee of the Board of Directors Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 18, 2025 John Q. Doyle Electronic Delivery Subject: Terms of Employment Dear John, This third amendment to the Letter Agreement, dated November 10, 2022, between you and Marsh & McLennan Companies, Inc. as subsequently
April 17, 2025	EX-10.2	Letter Agreement Amendment, dated February 18, 2025, between Marsh & McLennan Companies, Inc. and Mark C. McGivney. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 18, 2025 Mark C. McGivney Electronic Delivery Subject: Terms of Employment Dear Mark, This fifth amendment to the Letter Agreement, dated September 17, 2015, between you and Marsh & McLennan Companies, Inc. as subsequently amended on January 17, 2
April 17, 2025	EX-10.9	Form of Performance Stock Unit Award, dated as of February 18, 2025, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF PERFORMANCE STOCK UNIT AWARDS GRANTED ON [DATE], 2025 TABLE OF CONTENTS Page I. BACKGROUND....................................................................................1 II. AWARDS............................................................................................1 III. EMPLOYMENT EVENTS.....
April 17, 2025	EX-10.7	Non-Competition and Non-Solicitation Agreement, effective as of April 1, 2024, between Marsh & McLennan Companies, Inc. and Patrick Tomlinson. NON-COMPETITION AND NON-SOLICITATION AGREEMENT AGREEMENT, dated as of March 20, 2024, between Marsh & McLennan Companies, Inc.
April 9, 2025	PX14A6G	Notice of Exempt Solicitation Pursuant to Rule 14a-103 Notice of Exempt Solicitation Pursuant to Rule 14a-103 Name of Registrant: Marsh & McLennan Companies, Inc.
March 28, 2025	ARS	ARS Marsh McLennan 2024 Annual Report 3 The Power of Perspective 2024 Annual Report 2024 Annual ReportOur unique capabilities help clients build the confidence to thrive through the power of perspective.
March 28, 2025	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Pro
March 28, 2025	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ Defi
February 10, 2025	EX-21.1	List of Subsidiaries of Marsh & McLennan Companies, Inc. Exhibit 21 - MMC Subsidiary List Marsh & McLennan Companies, Inc. as of February 10, 2025 Company Name Country 1 A. Constantinidi & CIA. S.C. Uruguay 2 Acumen Solutions Group LLC United States 3 Advance Asset Management Limited Australia 4 Aermetric Technology Group, Inc United States 5 AFCO Premium Credit LLC United States 6 Agnew Higgins Pickering & Co. (Bermuda) Ltd Bermuda 7 Alpha Consultants
February 10, 2025	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2024 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 1-5998 Marsh & McLennan Companies, Inc. (Exact name of registr
February 10, 2025	EX-19.1	Trading Securities Policy Compliance Policy Live The Greater Good TRADING SECURITIES This Policy applies to all colleagues.
February 10, 2025	EX-97.1	Marsh & McLennan Companies, Inc. Compensation Clawback Policy Marsh & McLennan Companies, Inc. Compensation Clawback Policy 1.Purpose It is the purpose of this Compensation Clawback Policy (the “Policy”) to set forth the guidelines for the recoupment of certain incentive-based compensation in the event of an accounting restatement resulting from noncompliance with financial reporting requirements under U.S. federal securities laws. This Policy is intended to
February 10, 2025	EX-4.23	, between Marsh & McLennan Companies, Inc. and the Bank of New York Mellon, as trustee MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee TWENTIETH SUPPLEMENTAL INDENTURE Dated as of December 13, 2024 TWENTIETH SUPPLEMENTAL INDENTURE, dated as of December 13, 2024, between MARSH & McLENNAN COMPANIES, INC., a Delaware corporation (the “Issuer”), and THE BANK OF NEW YORK MELLON, a New York banking corporation, as Trustee (the “Trustee”). W I T N E S S E
February 10, 2025	EX-19.2	Insider Trading Policy TRANSACTIONS IN MARSH MCLENNAN SECURITIES BY DIRECTORS AND EXECUTIVE OFFICERS TRANSACTIONS IN MARSH MCLENNAN SECURITIES BY DIRECTORS AND EXECUTIVE OFFICERS POLICY OVERVIEW PURPOSE This Policy is designed to help •prevent the potentially severe personal legal consequences to directors and executive officers of insider trading violations and •meet personal regulatory reporting obligations in the U.
February 10, 2025	EX-10.34	*First Amendment to the January 1, 2022 Amended and Restated Marsh & McLennan Companies Supplemental Savings & Investment Plan effective August 1, 2024 FIRST AMENDMENT TO THE JANUARY 1, 2022 AMENDED AND RESTATED MARSH & MCLENNAN COMPANIES SUPPLEMENTAL SAVINGS & INVESTMENT PLAN WHEREAS, Marsh & McLennan Companies, Inc.
January 30, 2025	8-K	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 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) January 30, 2025 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
January 30, 2025	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
November 15, 2024	EX-99.1	Marsh McLennan Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 www.
November 15, 2024	8-K	Termination of a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets, Other Events 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) November 15, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 001-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (C
November 8, 2024	8-K	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): November 8, 2024 Marsh & McLennan 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): November 8, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Com
November 8, 2024	EX-4.1	Nineteenth Supplemental Indenture, dated November 8, 2024, between Marsh & McLennan Companies, Inc. and The Bank of New York Mellon, as trustee. EXHIBIT 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee NINETEENTH SUPPLEMENTAL INDENTURE Dated as of November 8, 2024 $950,000,000 aggregate principal amount of 4.550% Senior Notes due 2027 $1,000,000,000 aggregate principal amount of 4.650% Senior Notes due 2030 $1,000,000,000 aggregate principal amount of 4.850% Senior Notes due 2031 $2,000,000,000 aggrega
November 8, 2024	EX-4.9	Calculation Agency Agreement, dated November 8, 2024, between Marsh & McLennan Companies, Inc. and The Bank of New York Mellon, as calculation agent. EXHIBIT 4.9 CALCULATION AGENCY AGREEMENT BETWEEN MARSH & MCLENNAN COMPANIES, INC. AND THE BANK OF NEW YORK MELLON THIS AGREEMENT is made as of November 8, 2024, between MARSH & MCLENNAN COMPANIES, INC., a Delaware corporation, whose principal executive office is at 1166 Avenue of the Americas, New York, New York 10036 (the “Corporation”), and THE BANK OF NEW YORK MELLON, a New York banking corpora
November 8, 2024	EX-1.1	Underwriting Agreement, dated October 30, 2024, by and among Marsh & McLennan Companies, Inc. and Citigroup Global Markets Inc., BofA Securities, Inc., Deutsche Bank Securities Inc., HSBC Securities (USA) Inc., J.P. Morgan Securities LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein. EXHIBIT 1.1 Marsh & McLennan Companies, Inc. $950,000,000 aggregate principal amount of 4.550% Senior Notes due 2027 $1,000,000,000 aggregate principal amount of 4.650% Senior Notes due 2030 $1,000,000,000 aggregate principal amount of 4.850% Senior Notes due 2031 $2,000,000,000 aggregate principal amount of 5.000% Senior Notes due 2035 $500,000,000 aggregate principal amount of 5.350% Senior Note
November 1, 2024	424B2	(continued on the next page) Table of Contents (continued on the next page) Filed Pursuant to Rule 424(b)(2) Registration Statement No.
November 1, 2024	EX-FILING FEES	Calculation of Filing Fee Tables (Form Type) Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) Marsh & McLennan Companies, Inc.
October 31, 2024	FWP	Marsh & McLennan Companies, Inc. $950,000,000 4.550% Senior Notes due 2027 $1,000,000,000 4.650% Senior Notes due 2030 $1,000,000,000 4.850% Senior Notes due 2031 $2,000,000,000 5.000% Senior Notes due 2035 $500,000,000 5.350% Senior Notes due 2044 $ Issuer Free Writing Prospectus Filed Pursuant to Rule 433 Supplementing the Preliminary Prospectus Supplement, dated October 30, 2024 Registration Statement No.
October 30, 2024	424B2	PRELIMINARY PROSPECTUS SUPPLEMENT SUBJECT TO COMPLETION, DATED OCTOBER 30, 2024 Table of Contents The information in this preliminary prospectus supplement is not complete and may be changed.
October 17, 2024	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2024 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the
October 17, 2024	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
October 17, 2024	8-K	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 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 17, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Comm
October 17, 2024	EX-10.1	Commitment Letter by and among Marsh & McLennan Companies, Inc. and Citigroup Global Markets Inc., dated as of September 29, 2024. Execution Version CITIGROUP GLOBAL MARKETS INC. 388 Greenwich Street New York, New York 10013 September 29, 2024 Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, New York 10036 Attention: Mark McGivney, Chief Financial Officer Project Bulldog Commitment Letter Ladies and Gentlemen: Marsh & McLennan Companies, Inc., a Delaware corporation (the “Borrower” or “you”), has advised
September 30, 2024	EX-2.1	Agency, LLC, BD Merger Sub, Inc. and TIH Platform Midco, L.P., dated as of bulldog-mergeragreementx AGREEMENT AND PLAN OF MERGER by and among TIH BLOCKER II, INC.
September 30, 2024	8-K	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 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) September 29, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 001-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (
September 30, 2024	EX-99.1	Marsh McLennan Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 www.
July 24, 2024	EX-25.2	Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of The Bank of New York Mellon, as trustee for the form of subordinated indenture. Exhibit 25.2 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) \|\| THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York (Jurisdiction
July 24, 2024	EX-25.1	Statement of Eligibility on Form T-1 under the Trust Indenture Act of 1939, as amended, of The Bank of New York Mellon, as trustee for the Indenture dated as of July 15, 2011. Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) \|\| THE BANK OF NEW YORK MELLON (Exact name of trustee as specified in its charter) New York (Jurisdiction
July 24, 2024	EX-FILING FEES	Filing Fee Table Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Marsh & McLennan Companies, Inc.
July 24, 2024	S-3ASR	As filed with the Securities and Exchange Commission on July 24, 2024 As filed with the Securities and Exchange Commission on July 24, 2024 Registration No.
July 18, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) July 18, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
July 18, 2024	EX-10.1	Letter Agreement Amendment, dated July 10, 2024, between Marsh & McLennan Companies, Inc. and John Q. Doyle Steven A. Mills Chairman of the Compensation Committee of the Board of Directors Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com July 10, 2024 John Q. Doyle Hand Delivery Subject: Terms of Employment Dear John, This second amendment to the Letter Agreement, dated November 10, 2022, between you and Marsh & McLennan Companies, Inc. as subsequently amended
July 18, 2024	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2024 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the Ameri
July 18, 2024	EX-99.1	MARSH McLENNAN REPORTS SECOND QUARTER 2024 RESULTS GAAP Revenue Increases 6%; Underlying Revenue Rises 6% Growth in GAAP Operating Income of 13% and Adjusted Operating Income of 11% Second Quarter GAAP EPS Rises 10% to $2.27 and Adjusted EPS Increase Exhibit 99.1 NEWS RELEASE Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com MARSH McLENNAN REPORTS SECOND QUARTER 2024 RESULTS GAAP Revenue Increases 6%; Underlying Revenue Rises 6% Growth in GAAP Operating Income of 13% and Adjusted Operating Income of 11% Second Quarter GAAP EPS Rises 10% to $2.27 and Adjusted EPS Increases 10% to $2.41 S
July 10, 2024	EX-99.1	1 Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
July 10, 2024	8-K	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 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) July 10, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
June 24, 2024	8-K	Temporary Suspension of Trading Under Registrant's Employee Benefit Plans, Financial Statements and Exhibits 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) June 24, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
June 24, 2024	EX-99.1	1166 Avenue of the Americas 1166 Avenue of the Americas New York, NY 10036 Special Blackout Notice To: Directors & Section 16 officers of Marsh & McLennan Companies, Inc.
June 14, 2024	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2023 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2023 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN COMPANIES 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: M
June 14, 2024	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2023 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2023 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN AGENCY 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: MARS
May 17, 2024	8-K	Submission of Matters to a Vote of Security Holders 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) May 16, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
April 29, 2024	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy St
April 18, 2024	EX-10.10	Form of Performance Stock Unit Award, dated as of February 22, 2024, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF PERFORMANCE STOCK UNIT AWARDS GRANTED ON [DATE], 2024 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 11 V. DEFINITIONS 13 VI. ADDITIONAL PROVISIONS 14 VII. QUESTIONS AND ADDITIONAL INFORMATION 17 I. BACKGROUND A Performance Stock Unit award (“A
April 18, 2024	EX-10.9	Form of Restricted Stock Unit Award, dated as of February 22, 2024, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2024 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 11 V. DEFINITIONS 12 VI. ADDITIONAL PROVISIONS 13 VII. QUESTIONS AND ADDITIONAL INFORMATION 16 I. BACKGROUND An award (“Award”) has been granted
April 18, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) April 18, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
April 18, 2024	EX-10.3	Letter Agreement Amendment, dated February 22, 2024, between Marsh & McLennan Companies, Inc. and Martin South. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 22, 2024 Martin South Hand Delivery Subject: Terms of Employment Dear Martin, This first amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. (the “Letter Agreement”), revises the terms and co
April 18, 2024	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2024 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to. Marsh & McLennan Companies, Inc. 1166 Avenue of the Amer
April 18, 2024	EX-10.6	Non-Competition and Non-Solicitation Agreement, dated as of December 1, 2021, between Marsh & McLennan Companies, Inc. and Dean M. Klisura. NON-COMPETITION AND NON-SOLICITATION AGREEMENT AGREEMENT, dated as of December 1, 2021, between Marsh & McLennan Companies, Inc.
April 18, 2024	EX-10.11	Form of Stock Option Award, dated as of February 22, 2024, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF STOCK OPTION AWARDS GRANTED ON [DATE], 2024 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 8 V. DEFINITIONS 9 VI. ADDITIONAL PROVISIONS 10 VII. QUESTIONS AND ADDITIONAL INFORMATION 13 I. BACKGROUND A Stock Option award (“Award”) has been grante
April 18, 2024	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
April 18, 2024	EX-10.7	Form of Deferred Stock Unit Award, with grant dates from March 1, 2024 through February 1, 2025, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Cliff Vesting. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2024 THROUGH FEBRUARY 1, 2025 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 7 V. DEFINITIONS 8 VI. ADDITIONAL PROVISIONS 9 VII. QUESTIONS AND ADDITIONAL INFORMATION 11 I. BACKGROUND An
April 18, 2024	EX-10.8	Form of Deferred Stock Unit Award, with grant dates from March 1, 2024 through February 1, 2025, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Ratable Vesting. MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2024 THROUGH FEBRUARY 1, 2025 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 7 V. DEFINITIONS 8 VI. ADDITIONAL PROVISIONS 9 VII. QUESTIONS AND ADDITIONAL INFORMATION 11 I. BACKGROUND An
April 18, 2024	EX-10.4	Letter Agreement Amendment, dated February 22, 2024, between Marsh & McLennan Companies, Inc. and Dean M. Klisura. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com February 22, 2024 Dean Klisura Hand Delivery Subject: Terms of Employment Dear Dean, This first amendment to the Letter Agreement, dated December 1, 2021, between you and Marsh & McLennan Companies, Inc. (the “Letter Agreement”), revises the terms and cond
April 18, 2024	EX-10.5	Letter Agreement, effective as of January 1, 2022, between Marsh & McLennan Companies, Inc. and Dean M. Klisura. John Q. Doyle Group President and Chief Operating Officer (effective January 1, 2022) and Vice Chair Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com December 1, 2021 Dean Klisura Hand Delivery Subject: Terms of Employment Dear Dean, This letter agreement sets forth the terms of your continued employment by Guy Carpenter & Company LLC (“Guy Carpenter”) as
March 29, 2024	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☒ D
March 29, 2024	ARS	ARS 2023 Annual Report Building the «ª¼ ¡ª¡°«°¤®¥²¡We partner with clients, colleagues, investors and communities to -@47/ऺ?30ऺ.
March 29, 2024	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Definitive Proxy St
March 29, 2024	DEF 14A	DEFINITIVE PROXY STATEMENT COURTESY PDF 2024 Notice of Annual Meeting and Proxy StatementWe partner with clients, colleagues, investors and communities to build the confidence to thrive through the power of perspective.
March 14, 2024	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 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) March 8, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
February 23, 2024	EX-10.2	10.2 Letter Agreement Amendment, dated February 22, 2024, between Marsh & McLennan Companies, Inc. and Mark C. McGivney. John Q. Doyle President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.mmc.com February 22, 2024 Mark C. McGivney Hand delivery Subject: Terms of Employment Dear Mark, This fourth amendment to the Letter Agreement, dated September 17, 2015, between you and Marsh & McLennan Companies, Inc. as subsequently amended on January 17,
February 23, 2024	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits 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) February 22, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Com
February 23, 2024	EX-10.1	10.1 Letter Agreement Amendment, dated February 22, 2024, between Marsh & McLennan Companies, Inc. and John Q. Doyle. Steven A. Mills Chairman of the Compensation Committee of the Board of Directors Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.mmc.com February 22, 2024 John Q. Doyle Hand delivery Subject: Terms of Employment Dear John, This first amendment to the Letter Agreement, dated November 10, 2022, between you and Marsh & McLennan Companies, Inc. (the “Letter Ag
February 20, 2024	EX-1.1	Underwriting Agreement, dated February 14, 2024, by and among Marsh & McLennan Companies, Inc. and J.P. Morgan Securities LLC, Wells Fargo Securities, LLC, Goldman Sachs & Co. LLC, RBC Capital Markets, LLC, Morgan Stanley & Co. LLC and TD Securities (USA) LLC, as representatives of the several underwriters named therein. Exhibit 1.1 Marsh & McLennan Companies, Inc. $500,000,000 aggregate principal amount of 5.150% Senior Notes due 2034 $500,000,000 aggregate principal amount of 5.450% Senior Notes due 2054 UNDERWRITING AGREEMENT February 14, 2024 February 14, 2024 J.P. Morgan Securities LLC Wells Fargo Securities, LLC Goldman Sachs & Co. LLC RBC Capital Markets, LLC Morgan Stanley & Co. LLC TD Securities (USA) LLC
February 20, 2024	EX-99.1	- 2 - Exhibit 99.1 Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 News release Media contact: Erick Gustafson Marsh McLennan +1 202 263 7788 [email protected] Investor contact: Sarah DeWitt Marsh McLennan +1 212 345 6750 [email protected] Marsh McLennan Announces Pricing of $1,000,000,000 Senior Notes Offering NEW YORK, February 14, 2024 — Marsh McLenn
February 20, 2024	EX-4.1	Eighteenth Supplemental Indenture, dated February 20, 2024, between Marsh & McLennan Companies, Inc. and The Bank of New York Mellon, as trustee. Exhibit 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee EIGHTEENTH SUPPLEMENTAL INDENTURE Dated as of February 20, 2024 $500,000,000 aggregate principal amount of 5.150% Senior Notes due 2034 $500,000,000 aggregate principal amount of 5.450% Senior Notes due 2054 EIGHTEENTH SUPPLEMENTAL INDENTURE, dated as of February 20, 2024, between MARSH & McLENNAN COMPA
February 20, 2024	8-K	Current Report 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): February 14, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Co
February 15, 2024	EX-FILING FEES	Calculation of Filing Fee Tables (Form Type) Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Fo Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) Marsh & McLennan Companies, Inc.
February 15, 2024	424B2	$1,000,000,000 Marsh & McLennan Companies, Inc. $500,000,000 5.150% Senior Notes due 2034 $500,000,000 5.450% Senior Notes due 2054 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-258194 Prospectus Supplement February 14, 2024 (To Prospectus Dated July 27, 2021) $1,000,000,000 Marsh & McLennan Companies, Inc. $500,000,000 5.150% Senior Notes due 2034 $500,000,000 5.450% Senior Notes due 2054 We will pay interest on the 5.150% Senior Notes due 2034 (the “2034 Notes”) on March 15 and September 1
February 14, 2024	FWP	Marsh & McLennan Companies, Inc. $500,000,000 5.150% Senior Notes due 2034 $500,000,000 5.450% Senior Notes due 2054 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: February 14, 2024 Final Term Sheet Filed Pursuant to Rule 433 Registration Statement No. 333-258194 February 14, 2024 Marsh & McLennan Companies, Inc. $500,000,000 5.150% Senior Notes due 2034 $500,000,000 5.450% Senior Notes due 2054 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: February 14, 2024 Settlement Date*: February 20, 2024 (T+3) Expected
February 14, 2024	424B2	PRELIMINARY PROSPECTUS SUPPLEMENT SUBJECT TO COMPLETION, DATED FEBRUARY 14, 2024 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-258194 The information in this preliminary prospectus supplement is not complete and may be changed. The preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and we are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is
February 13, 2024	SC 13G/A	MMC / Marsh & McLennan Companies, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Marsh & McLennan Cos Inc Title of Class of Securities: Common Stock CUSIP Number: 571748102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is fil
February 12, 2024	EX-97.1	Marsh & McLennan Companies, Inc. Compensation Clawback Policy dated as of December 1, 2023. Marsh & McLennan Companies, Inc. Compensation Clawback Policy 1.Purpose It is the purpose of this Compensation Clawback Policy (the “Policy”) to set forth the guidelines for the recoupment of certain incentive-based compensation in the event of an accounting restatement resulting from noncompliance with financial reporting requirements under U.S. federal securities laws. This Policy is intended to
February 12, 2024	EX-21.1	List of Subsidiaries of Marsh & McLennan Companies, Inc. Exhibit 21.1 - MMC Subsidiary List Marsh & McLennan Companies, Inc. as at February 12, 2024 Company Name Country 1 A. Constantinidi & CIA. S.C. Uruguay 2 Advance Asset Management Limited Australia 3 AFCO Premium Credit LLC United States 4 Agnew Higgins Pickering & Co. (Bermuda) Ltd Bermuda 5 Aldgate Trustees Ltd United Kingdom 6 Alpha Consultants Limited New Zealand 7 Altius Associates GP Ltd Guer
February 12, 2024	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2023 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 1-5998 Marsh & McLennan Companies, Inc. (Exact name of registr
February 9, 2024	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers 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) February 5, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Comm
February 8, 2024	SC 13G/A	MARSH & MCLENNAN COMPANIES, INC. - AMENDMENT NO. 9 TO SCHEDULE 13G SC 13G/A 1 audax13ga4q2022.htm AMENDMENT NO. 9 TO SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9) Audax Credit BDC Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 05070P 108 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing
January 25, 2024	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) January 25, 2024 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
January 25, 2024	SC 13G/A	MMC / Marsh & McLennan Companies, Inc. / BlackRock Inc. Passive Investment SC 13G/A 1 us5717481023012524.txt us5717481023012524.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 9) MARSH AND MCLENNAN COMPANIES INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 571748102 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the a
January 25, 2024	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
October 19, 2023	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
October 19, 2023	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2023 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the A
October 19, 2023	EX-10.1	Amended and Restated 5 Year Credit Agreement, Exhibit 10.1 US$3,500,000,000 AMENDED AND RESTATED 5 YEAR CREDIT AGREEMENT dated as of October 11, 2023 Among Marsh & McLennan Companies, Inc. Calm Treasury Holdings Limited and the Designated Subsidiaries referred to herein as Borrowers, The Lenders Listed Herein and Citibank, N.A. as Administrative Agent Bank of America, N.A., Deutsche Bank Securities Inc. HSBC Bank USA, National Association JPM
October 19, 2023	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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 19, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Comm
October 12, 2023	EX-99.1	Media Contact: Erick Gustafson Marsh McLennan +1 202 263 7788 [email protected] Investor Contact: Sarah DeWitt Marsh McLennan +1 212 345 6750 [email protected] Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
October 12, 2023	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events 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 9, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commi
September 11, 2023	EX-4.1	, between Marsh & McLennan Companies, Inc. and the Bank of New York Mellon, as trustee (incorporated by reference to the Company's Current Report on Form 8-K dated Exhibit 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee SEVENTEENTH SUPPLEMENTAL INDENTURE Dated as of September 11, 2023 $600,000,000 aggregate principal amount of 5.400% Senior Notes due 2033 $1,000,000,000 aggregate principal amount of 5.700% Senior Notes due 2053 SEVENTEENTH SUPPLEMENTAL INDENTURE, dated as of September 11, 2023, between MARSH & McLENNAN
September 11, 2023	8-K	Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events 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) September 6, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Com
September 11, 2023	EX-99.1	- 2 - Exhibit 99.1 Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 News release Media contact: Erick Gustafson Marsh McLennan +1 202 263 7788 [email protected] Investor contact: Sarah DeWitt Marsh McLennan +1 212 345 6750 [email protected] Marsh McLennan Announces Pricing of $1.6 Billion Senior Notes Offering NEW YORK, September 6, 2023 — Marsh McLennan
September 11, 2023	EX-1.1	Underwriting Agreement, dated September 6, 2023, by and among Marsh & McLennan Companies, Inc. and BofA Securities, Inc., Citigroup Global Markets Inc, J.P. Morgan Securities and Deutsche Bank Securities, as representatives of the several underwriters named therein. Exhibit 1.1 Marsh & McLennan Companies, Inc. $600,000,000 aggregate principal amount of 5.400% Senior Notes due 2033 $1,000,000,000 aggregate principal amount of 5.700% Senior Notes due 2053 UNDERWRITING AGREEMENT September 6, 2023 September 6, 2023 BofA Securities, Inc. Citigroup Global Markets Inc. J.P. Morgan Securities LLC Deutsche Bank Securities Inc. For themselves and as Representatives of
September 7, 2023	EX-FILING FEES	Calculation of Filing Fee Tables (Form Type) Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) Marsh & McLennan Companies, Inc.
September 7, 2023	424B2	Marsh & McLennan Companies, Inc. $600,000,000 5.400% Senior Notes due 2033 $1,000,000,000 5.700% Senior Notes due 2053 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-258194 Prospectus Supplement September 6, 2023 (To Prospectus Dated July 27, 2021) Marsh & McLennan Companies, Inc. $600,000,000 5.400% Senior Notes due 2033 $1,000,000,000 5.700% Senior Notes due 2053 We will pay interest on the 5.400% Senior Notes due 2033 (the “2033 Notes”) on March 15 and September 15 of each yea
September 6, 2023	424B2	PRELIMINARY PROSPECTUS SUPPLEMENT SUBJECT TO COMPLETION, DATED SEPTEMBER 6, 2023 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No. 333-258194 The information in this preliminary prospectus supplement is not complete and may be changed. The preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and we are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is
September 6, 2023	FWP	Marsh & McLennan Companies, Inc. $600,000,000 5.400% Senior Notes due 2033 $1,000,000,000 5.700% Senior Notes due 2053 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: September 6, 202 Final Term Sheet Filed Pursuant to Rule 433 Registration Statement No. 333-258194 September 6, 2023 Marsh & McLennan Companies, Inc. $600,000,000 5.400% Senior Notes due 2033 $1,000,000,000 5.700% Senior Notes due 2053 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: September 6, 2023 Settlement Date*: September 11, 2023 (T+3) Expec
July 21, 2023	LETTER	LETTER United States securities and exchange commission logo July 21, 2023 Mark McGivney Chief Financial Officer Marsh & McLennan Companies, Inc.
July 20, 2023	8-K	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 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) July 20, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
July 20, 2023	EX-10.2	Amendment No. 1, dated as of May 22, 2023, to the Amended and Restated 5 Year Credit Agreement among Marsh & McLennan Companies, Inc., the designated subsidiaries party thereto as borrowers, Citibank, N.A., as administrative agent, and the lenders from time to time party thereto marshmclennanamendmentno EXECUTION COPY AMENDMENT NO. 1 TO THE CREDIT AGREEMENT Dated as of May 22, 2023 AMENDMENT NO. 1 TO THE CREDIT AGREEMENT (this “Amendment”) among MARSH & McLENNAN COMPANIES, INC., a Delaware corporation (the “Company”), the Lenders (as defined below) and CITIBANK, N.A., a national banking association, as administrative agent (the “Agent”) for the Lenders. PRELIMINARY STATEM
July 20, 2023	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2023 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the Americ
July 20, 2023	EX-10.1	*Description of compensation arrangements for independent directors of Marsh & McLennan Companies, Inc. effective June 1, 202 Description of Compensation Arrangements for Independent Directors Effective June 1, 2023, which will be the start of the Board’s annual pay cycle, Marsh & McLennan Companies, Inc.
July 20, 2023	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
July 12, 2023	CORRESP	December 31, 2022 As reported Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T+ 212 345 5000 www.mmc.com Stacy Mills Chief Accounting Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, New York 10036 Mr. John Spitz and Mr. Michael Volley Division of Corporation Finance, Office of Finance U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 2054
June 16, 2023	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2022 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2022 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN AGENCY 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: MARS
June 16, 2023	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2022 SEC NO. 1-5998 11-K 1 mmcsip11k12312022.htm MMC SIP 11-K 12.31.2022 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2022 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN COMPANIES 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan
June 12, 2023	EX-99.1	Hafize Gaye Erkan Resigns from Marsh McLennan Board of Directors Departure Follows Ms. Erkan’s Appointment as Governor of Türkiye’s Central Bank Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
June 12, 2023	8-K	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 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) June 12, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
May 22, 2023	8-K	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 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) May 18, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
April 20, 2023	EX-10.4	Form of Deferred Stock Unit Award, with grant dates from March 1, 2023 through February 1, 2024, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Ratable Vesting MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2023 THROUGH FEBRUARY 1, 2024 TABLE OF CONTENTS Page I. BACKGROUND...................................................................................... 1 II. AWARDS....................................................................................
April 20, 2023	EX-10.7	Form of Stock Option Award, dated as of February 23, 2023, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF STOCK OPTION AWARDS GRANTED ON [DATE], 2023 TABLE OF CONTENTS Page I. BACKGROUND.................................................................................... 1 II. AWARDS........................................................................................... 1 III. EMPLOYMENT EVENTS..............
April 20, 2023	EX-10.2	(incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 20 NON-COMPETITION AND NON-SOLICITATION AGREEMENT AGREEMENT, dated as of December 1, 2021, between Marsh & McLennan Companies, Inc.
April 20, 2023	EX-10.1	(incorporated by reference to the Company's Quarterly Report on Form 10-Q for the quarter ended March 31, 20 John Q. Doyle Group President and Chief Operating Officer (effective January 1, 2022) and Vice Chair Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com December 1, 2021 Martin South Hand Delivery Subject: Terms of Employment Dear Martin, This letter agreement sets forth the terms of your continued employment by Marsh (“Marsh”) as its President and Chief Exe
April 20, 2023	8-K	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 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) April 20, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
April 20, 2023	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2023 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the Ameri
April 20, 2023	EX-10.6	Form of Performance Stock Unit Award, dated as of February 23, 2023, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF PERFORMANCE STOCK UNIT AWARDS GRANTED ON [DATE], 2023 TABLE OF CONTENTS Page I. BACKGROUND...................................................................................... 1 II. AWARDS............................................................................................. 1 III. EMPLOYMENT EVENTS
April 20, 2023	EX-10.3	Form of Deferred Stock Unit Award, with grant dates from March 1, 2023 through February 1, 2024, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Cliff Vesting MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2023 THROUGH FEBRUARY 1, 2024 TABLE OF CONTENTS Page I. BACKGROUND............................................................................... 1 II. AWARDS...................................................................................... 1 II
April 20, 2023	EX-10.5	Form of Restricted Stock Unit Award, dated as of February 23, 2023, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2023 TABLE OF CONTENTS Page I. BACKGROUND............................................................................... 1 II. AWARDS...................................................................................... 1 III. EMPLOYMENT EVENTS...............
April 20, 2023	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
March 31, 2023	DEF 14A	DEFINITIVE PROXY STATEMENT COURTESY PDF Marsh & McLennan Companies, Inc. Notice of Annual Meeting and 2023 Proxy Statement 00 2023 Notice of Annual Meeting and Proxy Statement00 Marsh & McLennan Companies, Inc. Notice of Annual Meeting and 2023 Proxy Statement Risk & Insurance Services Marsh Insurance Broking & Risk Management Guy Carpenter Reinsurance & Capital Strategies Consulting Mercer Health, Wealth & Career Consulting Oliver Wyma
March 31, 2023	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registran DEFA14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))
March 31, 2023	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the C o mmission Only (as permitted by Rule 14a-6(e)(2)) ☒ De
March 31, 2023	ARS	ARS Realizing new possibilities 2022 Annual ReportSucceeding together. We are in business to expand what’s possible for our clients and each other. Accelerating impact. We embrace change and create enduring client value. Advancing good. We strive to serve the greater good. Three commitments unite us as we strive to live our purpose: We are 85,000+ colleagues ¥ª¢«±®£¨«¨±¯¥ª¡¯¯¡¯ ±ª¥°¡ µ«©©
March 29, 2023	EX-99.1	Marsh McLennan Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 www.
March 29, 2023	8-K	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 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) March 29, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commis
March 29, 2023	CORRESP	* * * * * Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, NY 10036 T+ 212 345 5000 www.mmc.com Stacy Mills Chief Accounting Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, New York 10036 Mr. John Spitz and Mr. Michael Volley Division of Corporation Finance, Office of Finance U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 2054
March 16, 2023	LETTER	LETTER United States securities and exchange commission logo March 16, 2023 Mark McGivney Chief Financial Officer Marsh & McLennan Companies, Inc.
March 9, 2023	EX-99.1	Marsh McLennan Announces Pricing of $600 Million Senior Notes Offering EX-99.1 Exhibit 99.1 Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 News release Media contact: Erick Gustafson Marsh McLennan +1 202 263 7788 [email protected] Investor contact: Sarah DeWitt Marsh McLennan +1 212 345 6750 [email protected] Marsh McLennan Announces Pricing of $600 Million Senior Notes Offering NEW YORK, March 6, 2023 — Marsh McLe
March 9, 2023	EX-4.1	, 2023, between Marsh & McLennan Companies, Inc. and the Bank of New York Mellon, as trustee (incorporated by reference to the Company's Current Report on Form 8-K dated March 9, 2023) EX-4.1 Exhibit 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee SIXTEENTH SUPPLEMENTAL INDENTURE Dated as of March 9, 2023 $600,000,000 aggregate principal amount of 5.450% Senior Notes due 2053 SIXTEENTH SUPPLEMENTAL INDENTURE, dated as of March 9, 2023, between MARSH & McLENNAN COMPANIES, INC., a Delaware corporation (the “Issuer”), and THE BANK OF NEW YORK
March 9, 2023	8-K	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) March 6, 2023 Marsh & McLennan Com 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) March 6, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commiss
March 9, 2023	EX-1.1	Underwriting Agreement, dated March 6, 2023, by and among Marsh & McLennan Companies, Inc. and Barclays Capital Inc., HSBC Securities (USA) Inc. and Morgan Stanley & Co. LLC, as representatives of the several underwriters named therein. EX-1.1 Exhibit 1.1 Marsh & McLennan Companies, Inc. $600,000,000 aggregate principal amount of 5.450% Senior Notes due 2053 UNDERWRITING AGREEMENT March 6, 2023 March 6, 2023 Barclays Capital Inc. HSBC Securities (USA) Inc. Morgan Stanley & Co. LLC For themselves and as Representatives of the other Underwriters named in Schedule I hereto Barclays Capital Inc. 745 Seventh Avenue New York, New York
March 8, 2023	424B2	Marsh & McLennan Companies, Inc. $600,000,000 5.450% Senior Notes due 2053 424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No.
March 8, 2023	EX-FILING FEES	Youâve Exceeded the SECâs Traffic Limit EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) Marsh & McLennan Companies, Inc.
March 6, 2023	424B2	PRELIMINARY PROSPECTUS SUPPLEMENT SUBJECT TO COMPLETION, DATED MARCH 6, 2023 424B2 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration Statement No.
March 6, 2023	FWP	Marsh & McLennan Companies, Inc. $600,000,000 5.450% Senior Notes due 2053 Issuer: Marsh & McLennan Companies, Inc. Securities: 5.450% Senior Notes due 2053 Offering Format: SEC-Registered Trade Date: March 6, 2023 Settlement Date: March 9, 2023 (T+ FWP Final Term Sheet Filed Pursuant to Rule 433 Registration Statement No. 333-258194 March 6, 2023 Marsh & McLennan Companies, Inc. $600,000,000 5.450% Senior Notes due 2053 Issuer: Marsh & McLennan Companies, Inc. Securities: 5.450% Senior Notes due 2053 Offering Format: SEC-Registered Trade Date: March 6, 2023 Settlement Date: March 9, 2023 (T+3) Expected Ratings / Outlook (Moody’s / S&P / Fit
February 13, 2023	EX-10.54	l Savings & Investment Plan (formerly the Marsh & McLenn MARSH & MCLENNAN COMPANIES SUPPLEMENTAL SAVINGS & INVESTMENT PLAN (formerly the Marsh & McLennan Companies Stock Investment Supplemental Plan) Restatement effective January 1, 2022 {00835594-7} PREAMBLE Effective July 1, 1992, Marsh & McLennan Companies, Inc.
February 13, 2023	EX-10.45	2023 Amendment to the Marsh & McLennan C 2023 AMENDMENT TO THE MARSH & MCLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN Effective January 12, 2023, the last sentence of Section 10(e) of the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan shall be deleted in its entirety.
February 13, 2023	10-K	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K (Mark One) ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended December 31, 2022 OR ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Commission File No. 1-5998 Marsh & McLennan Companies, Inc. (Exact name of registr
February 13, 2023	EX-21.1	List of Subsidiaries of Marsh & McLennan Companies, Inc. Exhibit 21.1 Marsh & McLennan Companies, Inc. List of Subsidiaries as of February 13, 2023 Company Name Country 1 8WORKS LTD United Kingdom 2 A. Constantinidi & CIA. S.C. Uruguay 3 Access Equity Enhanced Fund GP, LLC United States 4 AFCO Premium Acceptance, Inc. United States 5 AFCO Premium Credit LLC United States 6 Agnew Higgins Pickering & Co. (Bermuda) Ltd Bermuda 7 Al Heloul Al Mushrikah Lest
February 9, 2023	SC 13G/A	MMC / Marsh & McLennan Companies, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment SC 13G/A 1 tv01372-marshmclennancosinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Marsh & McLennan Cos. Inc. Title of Class of Securities: Common Stock CUSIP Number: 571748102 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box
February 8, 2023	SC 13G/A	MARSH & MCLENNAN COMPANIES, INC. - AMENDMENT NO. 8 TO SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 8) Audax Credit BDC Inc. (Name of Issuer) Common Stock, par value $0.001 per share (Title of Class of Securities) 05070P 108 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the r
February 7, 2023	SC 13G/A	MMC / Marsh & McLennan Companies, Inc. / BlackRock Inc. Passive Investment SC 13G/A 1 us5717481023020723.txt us5717481023020723.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 8) MARSH AND MCLENNAN COMPANIES INC - (Name of Issuer) Common Stock - (Title of Class of Securities) 571748102 - (CUSIP Number) December 31, 2022 - (Date of Event Which Requires Filing of this Statement) Check the a
January 26, 2023	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
January 26, 2023	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) January 26, 2023 Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in Charter) Delaware 1-5998 36-2668272 (State or Other Jurisdiction of Incorporation) (Commissi
November 14, 2022	8-K/A	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported) September 26, 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) (
November 14, 2022	EX-10.1	, 2022, between Marsh & McLennan Companies, Inc. and John Q. Doyle Exhibit 10.1 Steven Mills Chairman of the Compensation Committee of the Board of Directors Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com November 10, 2022 John Q. Doyle Hand delivery Subject: Terms of Employment Dear John: This letter agreement sets forth the terms of your employment by Marsh & McLennan Companies, Inc. (?Marsh McLennan?, and together w
November 7, 2022	LETTER	LETTER United States securities and exchange commission logo November 7, 2022 Daniel S. Glaser President and Chief Executive Officer Marsh & McLennan Companies, Inc. 1166 Avenue of the Americas New York, New York 10036-2774 Re: Marsh & McLennan Companies, Inc. Definitive Proxy Statement on Schedule 14A Filed April 1, 2022 File No. 001-05998 Dear Daniel S. Glaser: We have completed our review of your fili
October 31, 2022	EX-4.1	Fifteenth Supplemental Indenture, dated October 31, 2022, between Marsh & McLennan Companies, Inc. and the Bank of New York Mellon, as trustee (incorporated by reference to the Company's Current Report on Form 8-K dated October 31, 2022) Exhibit 4.1 MARSH & McLENNAN COMPANIES, INC., Issuer, and The Bank of New York Mellon, Trustee FIFTEENTH SUPPLEMENTAL INDENTURE Dated as of October 31, 2022 $500,000,000 aggregate principal amount of 5.750% Senior Notes due 2032 $500,000,000 aggregate principal amount of 6.250% Senior Notes due 2052 FIFTEENTH SUPPLEMENTAL INDENTURE, dated as of October 31, 2022, between MARSH & McLENNAN COMPANIES,
October 31, 2022	8-K	Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events 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) (Comm
October 27, 2022	8-K	Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events 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 27, 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) (Comm
October 27, 2022	EX-99.1	MARSH McLENNAN ANNOUNCES PRICING OF $1 BILLION SENIOR NOTES OFFERING Exhibit 99.1 Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 www.marshmclennan.com News release Media contact: Erick Gustafson Marsh McLennan +1 202 263 7788 [email protected] Investor contact: Sarah DeWitt Marsh McLennan +1 212 345 6750 [email protected] MARSH McLENNAN ANNOUNCES PRICING OF $1 BILLION SENIOR NOTES OFFERING NEW YORK, October 24, 20
October 27, 2022	EX-1.1	Underwriting Agreement, dated October 24, 2022, by and among Marsh & McLennan Companies, Inc. and Deutsche Bank Securities Inc., J.P. Morgan Securities LLC, Goldman Sachs & Co. LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein. Exhibit 1.1 Marsh & McLennan Companies, Inc. $500,000,000 aggregate principal amount of 5.750% Senior Notes due 2032 $500,000,000 aggregate principal amount of 6.250% Senior Notes due 2052 UNDERWRITING AGREEMENT October 24, 2022 October 24, 2022 Deutsche Bank Securities Inc. J.P. Morgan Securities LLC Goldman Sachs & Co. LLC Wells Fargo Securities, LLC For themselves and as Representatives of the
October 26, 2022	424B2	$1,000,000,000 Marsh & McLennan Companies, Inc. $500,000,000 5.750% Senior Notes due 2032 $500,000,000 6.250% Senior Notes due 2052 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-258194 Prospectus Supplement October 24, 2022 (To Prospectus Dated July 27, 2021) $1,000,000,000 Marsh & McLennan Companies, Inc. $500,000,000 5.750% Senior Notes due 2032 $500,000,000 6.250% Senior Notes due 2052 We will pay interest on the 5.750% Senior Notes due 2032 (the ?2032 Notes?) on May 1 and November 1 of each year,
October 26, 2022	EX-FILING FEES	Calculation of Filing Fee Tables (Form Type) Marsh & McLennan Companies, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Fo Exhibit 107 Calculation of Filing Fee Tables 424(b)(2) (Form Type) Marsh & McLennan Companies, Inc.
October 26, 2022	CORRESP	Connor Kuratek CORRESP 1 filename1.htm Connor Kuratek Deputy General Counsel & Corporate Secretary Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T+ 212 345 8796 www.mmc.com October 26, 2022 Jennifer Gowetski Amanda Ravitz Division of Corporation Finance Disclosure Review Program U.S. Securities and Exchange Commission, 100 F Street, N.E. Washington, DC 20549 Re: Marsh & McLennan Companies, Inc. D
October 24, 2022	424B2	PRELIMINARY PROSPECTUS SUPPLEMENT SUBJECT TO COMPLETION, DATED OCTOBER 24, 2022 Table of Contents Filed Pursuant to Rule 424(b)(2) Registration No. 333-258194 The information in this preliminary prospectus supplement is not complete and may be changed. The preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities and we are not soliciting an offer to buy these securities in any jurisdiction where the offer or sale is not permi
October 24, 2022	FWP	Marsh & McLennan Companies, Inc. $500,000,000 5.750% Senior Notes due 2032 $500,000,000 6.250% Senior Notes due 2052 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: October 24, 2022 S Final Term Sheet Filed Pursuant to Rule 433 Registration Statement No. 333-258194 October 24, 2022 Marsh & McLennan Companies, Inc. $500,000,000 5.750% Senior Notes due 2032 $500,000,000 6.250% Senior Notes due 2052 Terms Applicable to the Notes Issuer: Marsh & McLennan Companies, Inc. Offering Format: SEC-Registered Trade Date: October 24, 2022 Settlement Date*: October 31, 2022 (T+5) Expected Ra
October 20, 2022	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
October 20, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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 20, 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) (Comm
October 20, 2022	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended September 30, 2022 OR ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the A
October 20, 2022	EX-10.2	*Letter Agreement, effective as of September 22, 2022, between Marsh & McLennan Companies, Inc. and Mark C. McGivney (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2022) Daniel S. Glaser President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com September 22, 2022 Subject: Terms of Employment Dear Mark, This third amendment to the Letter Agreement, dated September 17, 2015, between you and Marsh & McLennan Companies, Inc. as subsequently amended on January 17, 2018 and February 19, 2019 (togeth
September 26, 2022	EX-10.1	*Letter Agreement Amendment, dated September 23, 2022, between Marsh & McLennan Companies, Inc. and Daniel S. Glaser (incorporated by reference to the Company’s Current Report on Form 8-K dated September 23, 2022) EX-10.1 2 letteragreementdatedseptem.htm EX-10.1 Steven A. Mills Chairman of the Compensation Committee of the Board of Directors Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 www.mmc.com September 23, 2022 Daniel S. Glaser Hand delivery Subject: 2020 and 2021 Terms and Conditions of Performance Stock Unit Awards Dear Dan, This letter agreement (the “Letter Agreement”) shall serve
September 26, 2022	EX-99.1	Marsh McLennan Announces John Q. Doyle to Succeed Daniel S. Glaser as President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, New York, 10036-2774 T +212 345 5000 www.
September 26, 2022	8-K	Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits 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) September 23, 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) (Co
September 20, 2022	LETTER	LETTER United States securities and exchange commission logo September 20, 2022 Daniel S.
July 21, 2022	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended June 30, 2022 OR ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the Americ
July 21, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) July 21, 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) (Commiss
July 21, 2022	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
June 17, 2022	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2021 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2021 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN AGENCY 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: MARS
June 17, 2022	11-K	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2021 SEC NO. 1-5998 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE YEAR ENDED DECEMBER 31, 2021 SEC NO. 1-5998 A. Full title of the Plan: MARSH & McLENNAN COMPANIES 401(k) SAVINGS & INVESTMENT PLAN B. Name of issuer of the securities held pursuant to the Plan and the address of its principal executive office: M
May 24, 2022	8-K	Submission of Matters to a Vote of Security Holders 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) May 19, 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) (Commissi
April 21, 2022	EX-10.5	Form of Restricted Stock Unit Award, dated as of February 23, 2022, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF RESTRICTED STOCK UNIT AWARDS GRANTED ON [DATE], 2022 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 3 IV. CHANGE IN CONTROL PROVISIONS 9 V. DEFINITIONS 10 VI. ADDITIONAL PROVISIONS 11 VII. QUESTIONS AND ADDITIONAL INFORMATION 13 I. BACKGROUND An award (?Award?) has been granted
April 21, 2022	EX-99.1	Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.marshmclennan.com Marsh McLennan 1166 Avenue of the Americas New York, New York 10036-2774 212 345 5000 www.
April 21, 2022	10-Q	SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q (Mark One) ? Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended March 31, 2022 OR ? Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from to Marsh & McLennan Companies, Inc. 1166 Avenue of the Ameri
April 21, 2022	EX-10.2	*Letter Agreement, effective as of April 1, 2022, between Marsh & McLennan Companies, Inc. and Martine Ferland (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022) John Q. Doyle Group President and Chief Operating Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 www.mmc.com Subject: Terms of Employment Dear Martine, This second amendment to the Letter Agreement, dated January 16, 2019, between you and Marsh & McLennan Companies, Inc. (?Marsh McLennan?) as subsequently amended on February 22, 2021 (the ?Letter Agreement?), revises the ter
April 21, 2022	EX-10.6	Form of Performance Stock Unit Award, dated as of February 23, 2022, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF PERFORMANCE STOCK UNIT AWARDS GRANTED ON [DATE], 2022 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 4 IV. CHANGE IN CONTROL PROVISIONS 11 V. DEFINITIONS 10 VI. ADDITIONAL PROVISIONS 12 VII. QUESTIONS AND ADDITIONAL INFORMATION 14 I. BACKGROUND A Performance Stock Unit award (?A
April 21, 2022	EX-10.1	*Letter Agreement, effective as of January 1, 2022, between Marsh & McLennan Companies, Inc. and Peter C. Hearn (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022) Daniel S. Glaser President and Chief Executive Officer Marsh McLennan 1166 Avenue of the Americas New York, NY 10036 T +1 212 345 5000 www.mmc.com Subject: Terms of Employment Dear Peter, This letter agreement sets forth the terms of your continued employment as Vice Chair of Marsh & McLennan Companies, Inc. (?Marsh McLennan?, and together with its subsidiaries and affiliates, the ?Company?). This
April 21, 2022	EX-10.4	*Form of Deferred Stock Unit Award, with grant dates from March 1, 2022 through February 1, 2023, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Ratable Vesting (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022) MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2022 THROUGH FEBRUARY 1, 2023 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 3 IV. CHANGE IN CONTROL PROVISIONS 6 V. DEFINITIONS 7 VI. ADDITIONAL PROVISIONS 8 VII. QUESTIONS AND ADDITIONAL INFORMATION 10 I. BACKGROUND An
April 21, 2022	8-K	Financial Statements and Exhibits, Results of Operations and Financial Condition 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) April 21, 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) (Commis
April 21, 2022	EX-10.7	Form of Stock Option Award, dated as of February 23, 2022, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF STOCK OPTION AWARDS GRANTED ON [DATE], 2022 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 3 IV. CHANGE IN CONTROL PROVISIONS 6 V. DEFINITIONS 7 VI. ADDITIONAL PROVISIONS 8 VII. QUESTIONS AND ADDITIONAL INFORMATION 10 I. BACKGROUND A Stock Option award (?Award?) has been granted
April 21, 2022	EX-10.3	*Form of Deferred Stock Unit Award, with grant dates from March 1, 2022 through February 1, 2023, under the Marsh & McLennan Companies, Inc. 2020 Incentive and Stock Award Plan – Cliff Vesting (incorporated by reference to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2022) MARSH & McLENNAN COMPANIES, INC. 2020 INCENTIVE AND STOCK AWARD PLAN TERMS AND CONDITIONS OF DEFERRED STOCK UNIT AWARDS WITH GRANT DATES FROM MARCH 1, 2022 THROUGH FEBRUARY 1, 2023 TABLE OF CONTENTS Page I. BACKGROUND 1 II. AWARDS 1 III. EMPLOYMENT EVENTS 3 IV. CHANGE IN CONTROL PROVISIONS 6 V. DEFINITIONS 7 VI. ADDITIONAL PROVISIONS 8 VII. QUESTIONS AND ADDITIONAL INFORMATION 10 I. BACKGROUND An
April 1, 2022	DEFA14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registran UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin
April 1, 2022	DEF 14A	UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registran DEF 14A 1 d310397ddef14a.htm DEF 14A Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Com

DE:MSN	135,70 €
IT:1MMC	137,45 €
AT:MMCO	138,85 €

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