A Dark Vector Cognition product

Item 6. Exhibits.

4K characters. Original on sec.gov ·

Item 6. Exhibits.

See the Exhibit Index immediately following the signature page of this report, which is incorporated herein by reference.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Date:July 21, 2026/s/ Mark C. McGivney
Mark C. McGivney
Executive Vice President, Chief Operating Officer and Chief Financial Officer
Date:July 21, 2026/s/ Stacy M. Mills
Stacy M. Mills
Vice President & Controller
(Chief Accounting Officer)

EXHIBIT INDEX

Exhibit No.Exhibit Name
10.1Letter Agreement, effective as of April 15, 2026, between Marsh & McLennan Companies, Inc. and Mark C. McGivney
10.2Non-Competition and Non-Solicitation Agreement, effective April 15, 2026, between Marsh & McLennan Companies, Inc. and Mark C. McGivney
10.3Amended and Restated 5 Year Credit Agreement, dated as of June 2, 2026, 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
31.1Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer
31.2Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer
32.1Section 1350 Certifications
101.INSXBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCHXBRL Taxonomy Extension Schema
101.CALXBRL Taxonomy Extension Calculation Linkbase
101.DEFXBRL Taxonomy Extension Definition Linkbase
101.LABXBRL Taxonomy Extension Label Linkbase
101.PREXBRL Taxonomy Extension Presentation Linkbase
104Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

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