Marsh & McLennan Companies, Inc. (MRSH) Institutional Ownership & Insider Trading

1,495 institutions reported holding Marsh & McLennan Companies, Inc. shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 10 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-09-30 · read by EquiReason

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Market cap: 93.9B
P/E TTM: 23.6
Dividend yield: 1.9%
52-week: —
Next earnings: 27 Jan, in 95 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

1,495 institutions held 92.3% of the shares. Across filers that reported both quarters, shares held changed -1.6%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	1,495	439	-1.6%	397	97	585	134
Mar 26	1,516	438	+2.6%	527	85	489	133
Dec 25	1,553	433	-3.0%	445	91	560	136
Sep 25	1,541	438	-0.7%	450	99	511	120
Jun 25	1,573	443	+0.4%	504	82	473	99
Mar 25	1,579	435	-0.4%	504	122	466	75
Dec 24	1,518	442	+0.7%	504	57	391	81
Sep 24	1,488	428	-2.3%	489	90	397	43

Marsh & McLennan Companies, Inc. — questions

Who owns Marsh & McLennan Companies, Inc. stock?: 1,495 institutions reported Marsh & McLennan Companies, Inc. shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (8.3%), VANGUARD CAPITAL MANAGEMENT LLC (6.6%), STATE STREET CORP (4.7%).
Are Marsh & McLennan Companies, Inc. insiders buying or selling?: 10 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Marsh & McLennan Companies, Inc.'s own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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