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Marsh & McLennan Companies, Inc.

MRSH
Exchange
NYSE
Industry
Insurance Agents, Brokers & Service
SEC CIK
0000062709

In the last 90 days, Marsh & McLennan Companies, Inc. insiders filed 0 open-market purchases and 6 sales; 1,506 institutions reported holding it in 13F filings for Q2 2026, worth $73.1B in total; superinvestors Harris Associates (Oakmark) and Markel Group hold it.

Holders of 5% or more of MRSH

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Marsh & McLennan Companies, Inc., largest stake first. The change is against the holder's previous filing.

No holder currently reports owning 5% or more of Marsh & McLennan Companies, Inc. on Schedule 13D or 13G.

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

1 Schedule 13D or 13G filing on Marsh & McLennan Companies, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on MRSH
Filed (ET)FilerFormStakeChangeEvent dateFiling
Mar 27, 202610:34 AM ETVanguard Group Inc13G/A0.00%0 shares–Below 5%Mar 13, 2026SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Marsh & McLennan Companies, Inc. shares.

No Form 144 notices for Marsh & McLennan Companies, Inc. are on file.