Marsh & McLennan Companies agrees to sell euro senior notes due 2032 and 2036

Marsh & McLennan Companies entered into an underwriting agreement on October 20, 2026, with several underwriters. Under the agreement, the underwriters agreed to buy two series of senior notes from the company.

The notes were registered under the company's effective shelf registration statement on Form S-3 (Registration No. 333-280979) under the Securities Act of 1933. They were offered by means of a prospectus dated July 24, 2024, as supplemented by a prospectus supplement dated October 20, 2026.

In connection with the closing of the offering, the company entered into a paying agency agreement dated October 27, 2026, with The Bank of New York Mellon, London Branch, as paying agent.