Marsh & Mclennan Companies, INC.: management transactions · United States · SEC (Form 4)

About Marsh & Mclennan Companies, INC.

Marsh & McLennan Companies, Inc. is a leading U.S.-based professional services group focused on risk, strategy, and people. Founded in 1871, the company has built a long operating history and today serves clients through a global platform headquartered in New York, New York, United States. It is publicly traded on the NYSE, and its scale and brand recognition place it among the most important players in the global insurance and consulting ecosystem. ([mmc.com](https://www.mmc.com/content/dam/mmc-web/insights/publications/2021/MMC-Built-to-Last.pdf?utm_source=openai)) The company operates through four major businesses. Marsh is its core insurance brokerage and risk advisory franchise, providing data-driven risk management solutions for commercial and consumer clients. Guy Carpenter focuses on reinsurance brokerage and advanced risk, reinsurance, and capital strategies. Mercer is the group’s human capital business, offering advice and technology-enabled solutions across health, wealth, retirement, and workforce transformation. Oliver Wyman is the strategic and economic consulting arm, advising private-sector and public-sector clients on business transformation, financial strategy, and organizational change. This four-pillar structure gives Marsh McLennan a diversified revenue base across recurring advisory, brokerage, and consulting services. ([mmc.com](https://www.mmc.com/content/dam/mmc-web/insights/publications/2021/MMC-Built-to-Last.pdf?utm_source=openai)) From a competitive standpoint, Marsh McLennan benefits from substantial global reach, a strong client franchise, and deep expertise across highly specialized service lines. The company states that it advises clients in more than 130 countries, which gives it meaningful international breadth and allows it to support multinational customers with integrated solutions across insurance, reinsurance, employee benefits, retirement, and strategic consulting. That global footprint is an important barrier to entry and supports the company’s positioning as a premium provider in professional services. ([mmc.com](https://www.mmc.com/content/dam/mmc-web/insights/publications/2021/MMC-Built-to-Last.pdf?utm_source=openai)) Key products and services include insurance brokerage, risk consulting, claims and insurance placement support, reinsurance solutions, health and retirement advisory, investment consulting, and strategy consulting. For investors, the appeal of the business lies in its combination of defensive characteristics and exposure to long-duration client relationships. Much of the demand is tied to corporate risk transfer, workforce management, and structural consulting needs rather than purely discretionary spending. ([mmc.com](https://www.mmc.com/content/dam/mmc-web/insights/publications/2021/MMC-Built-to-Last.pdf?utm_source=openai)) Recent company materials highlight continued emphasis on business responsibility and climate-related commitments, including validated emissions-reduction targets received in 2024. Internal plan and corporate documents also confirm the New York headquarters base and the company’s broad organizational footprint. Overall, Marsh McLennan remains a high-quality U.S. listed franchise on the NYSE, with a durable market position, a long operating history, and a diversified service mix that spans insurance, reinsurance, human capital, and strategic consulting. ([pensions.uk.mmc.com](https://pensions.uk.mmc.com/docs/MMCUKPF_TCFD_report.pdf?utm_source=openai))