On January 15, 2019, Marsh & McLennan Companies, Inc. closed its previously announced sale of $700 million aggregate principal amount of its 3.500% Senior Notes due 2020, $1,000 million aggregate principal amount of its 3.875% Senior Notes due 2024, $1,250 million aggregate principal amount of its 4.375% Senior Notes due 2029, $500 million aggregate principal amount of its 4.750% Senior Notes due 2039, $1,250 million aggregate principal amount of its 4.900% Senior Notes due 2049 and $300 million aggregate principal amount of its Floating Rate Senior Notes due 2021 (together, the Notes). The Notes were registered under the Company's effective shelf registration statement on Form S-3 (Registration No. 333-226427) under the Securities Act of 1933, as amended, as filed with the Securities and Exchange Commission on July 30, 2018 and were offered by means of the Company's prospectus dated July 30, 2018, as supplemented by the prospectus supplement dated January 8, 2019.