Marsh & McLennan Companies, Inc.

MRSH

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

SEC filings (opens in a new tab)

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.

13F holders, Q3 2026

Institutional positions in Marsh & McLennan Companies, Inc. as of Sep 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Q3 2026 data is still coming in (13F filing deadline: Nov 16, 2026), so these numbers are incomplete.

Institutional holders: 6; 0 vs. Q2 2026
Shares held: 12.9K; −48.4K (−79.0%) vs. Q2 2026
Total value: $2.20M; −$8.01M (−78.4%) vs. Q2 2026
New holders: 0; 2 more added
Sold out: 0; 2 more reduced

1,500 institutions that held it in Q2 2026 haven't filed for Q3 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MRSH on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holders

Value held

Institutions holding MRSH and their total value by quarter
Quarter	Holders	Value
Q2 2026	1,506	$73.1B
Q1 2026	1,548	$76.1B
Q4 2025	1,594	$80.9B
Q3 2025	1,576	$87.2B
Q2 2025	1,610	$97.3B
Q1 2025	1,627	$108.0B
Q4 2024	1,578	$94.2B
Q3 2024	1,531	$97.1B
Q2 2024	1,476	$92.3B
Q1 2024	1,444	$89.9B
Q4 2023	1,376	$82.4B
Q3 2023	1,294	$82.0B
Q2 2023	1,258	$81.5B
Q1 2023	1,228	$72.1B
Q4 2022	1,223	$72.3B
Q3 2022	1,159	$65.5B
Q2 2022	1,150	$68.6B
Q1 2022	1,151	$75.2B
Q4 2021	1,170	$77.6B
Q3 2021	1,078	$68.0B
Q2 2021	1,007	$63.6B
Q1 2021	979	$54.7B

Institutions, Q3 2026

Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q2 2026.

Institutions holding MRSH in Q3 2026
Institution	Shares	Value	% of portfolio	Change in shares	Action
Empirical Finance, LLC	–	–	–	–	Not filed
Plato Investment Management Ltd	–	–	–	–	Not filed
Summit Trail Advisors, LLC	–	–	–	–	Not filed
Laird Norton Trust Company, LLC	–	–	–	–	Not filed
E. Ohman J:or Asset Management AB	–	–	–	–	Not filed
Tokio Marine Asset Management Co Ltd	–	–	–	–	Not filed
Suncoast Equity Management	–	–	–	–	Not filed
Relyea Zuckerberg Hanson LLC	–	–	–	–	Not filed
Boston Private Wealth LLC	–	–	–	–	Not filed
Lombard Odier Asset Management (Switzerland) SA	–	–	–	–	Not filed
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main	–	–	–	–	Not filed
HB Wealth Management, LLC	–	–	–	–	Not filed
CAPROCK Group, Inc.	–	–	–	–	Not filed
Essex LLC	–	–	–	–	Not filed
Commerzbank Aktiengesellschaft	–	–	–	–	Not filed
Pinnacle Financial Partners, Inc.	–	–	–	–	Not filed
Northwestern Mutual Investment Management Company, LLC	–	–	–	–	Not filed
Element Squared LLC	–	–	–	–	Not filed
Dean Investment Associates, LLC	–	–	–	–	Not filed
Vestor Capital, LLC	–	–	–	–	Not filed
Cresset Asset Management, LLC	–	–	–	–	Not filed
Sequoia Financial Advisors, LLC	–	–	–	–	Not filed
Metis Global Partners, LLC	–	–	–	–	Not filed
Cambridge Investment Research Advisors, Inc.	–	–	–	–	Not filed
Equitable Holdings, Inc.	–	–	–	–	Not filed
Freestone Capital Holdings, LLC	–	–	–	–	Not filed
Evelyn Partners Group Ltd	–	–	–	–	Not filed
MUFG Securities Americas Inc.	–	–	–	–	Not filed
Burling Wealth Partners, LLC	–	–	–	–	Not filed
North Dakota State Investment Board	–	–	–	–	Not filed
Kinneret Advisory, LLC	–	–	–	–	Not filed
Hennessy Advisors Inc	–	–	–	–	Not filed
Zurich Insurance Group Ltd	–	–	–	–	Not filed
Adage Capital Partners GP, L.L.C.	–	–	–	–	Not filed
Ronald Blue Trust, Inc.	–	–	–	–	Not filed
Kestra Advisory Services, LLC	–	–	–	–	Not filed
Union Heritage Capital, LLC	–	–	–	–	Not filed
Hancock Whitney Corp	–	–	–	–	Not filed
Securian Asset Management, Inc	–	–	–	–	Not filed
Edmond de Rothschild Holding S.A.	–	–	–	–	Not filed
Palouse Capital Management, Inc.	–	–	–	–	Not filed
PKO Investment Management Joint-Stock Co	–	–	–	–	Not filed
Warren Averett Asset Management, LLC	–	–	–	–	Not filed
United Capital Financial Advisers, LLC	–	–	–	–	Not filed
Miracle Mile Advisors, LLC	–	–	–	–	Not filed
Meiji Yasuda Asset Management Co Ltd.	–	–	–	–	Not filed
TCW Group Inc	–	–	–	–	Not filed
Dynamic Technology Lab Private Ltd	–	–	–	–	Not filed
Bartlett & Co. Wealth Management LLC	–	–	–	–	Not filed
Buckingham Strategic Partners	–	–	–	–	Not filed
Chicago Partners Investment Group LLC	–	–	–	–	Not filed
Everence Capital Management Inc	–	–	–	–	Not filed
Kentucky Retirement Systems Insurance Trust Fund	–	–	–	–	Not filed
Ashton Thomas Private Wealth, LLC	–	–	–	–	Not filed
Kimelman & Baird, LLC	–	–	–	–	Not filed
Mechanics Bank Trust Department	–	–	–	–	Not filed
111 Capital	–	–	–	–	Not filed
Park Avenue Securities LLC	–	–	–	–	Not filed
Dark Forest Capital Management LP	–	–	–	–	Not filed
Annandale Capital, LLC	–	–	–	–	Not filed
South Dakota Investment Council	–	–	–	–	Not filed
RSM US Wealth Management LLC	–	–	–	–	Not filed
Banco Bilbao Vizcaya Argentaria, S.A.	–	–	–	–	Not filed
Mission Wealth Management, LP	–	–	–	–	Not filed
Meeder Advisory Services, Inc.	–	–	–	–	Not filed
Howland Capital Management LLC	–	–	–	–	Not filed
NLB Skladi, upravljanje premozenja, d.o.o.	–	–	–	–	Not filed
American Trust	–	–	–	–	Not filed
Integrated Wealth Concepts LLC	–	–	–	–	Not filed
NBT Bank N A	–	–	–	–	Not filed
Aster Capital Management (DIFC) Ltd	–	–	–	–	Not filed
Ashton Thomas Securities, LLC	–	–	–	–	Not filed
Osmosis Investment Management UK Ltd	–	–	–	–	Not filed
HBK Sorce Advisory LLC	–	–	–	–	Not filed
Longfellow Investment Management Co LLC	–	–	–	–	Not filed
Trust Point Inc.	–	–	–	–	Not filed
Coldstream Capital Management Inc	–	–	–	–	Not filed
Citizens Financial Group Inc	–	–	–	–	Not filed
Tiaa-Cref Individual & Institutional Services, LLC	–	–	–	–	Not filed
PFG Advisors	–	–	–	–	Not filed
Summit Financial, LLC	–	–	–	–	Not filed
Banque Cantonale Vaudoise	–	–	–	–	Not filed
Foundations Investment Advisors, LLC	–	–	–	–	Not filed
Signaturefd, LLC	–	–	–	–	Not filed
Cincinnati Indemnity Co	–	–	–	–	Not filed
Capital Asset Advisory Services LLC	–	–	–	–	Not filed
Phoenix Holdings Ltd.	–	–	–	–	Not filed
Pensionmark Financial Group, LLC	–	–	–	–	Not filed
Jane Street Group, LLC	–	–	–	–	Not filed
V-Square Quantitative Management LLC	–	–	–	–	Not filed
Ritholtz Wealth Management	–	–	–	–	Not filed
Wealthcare Advisory Partners LLC	–	–	–	–	Not filed
Front Row Advisors LLC	–	–	–	–	Not filed
Tema ETFs LLC	–	–	–	–	Not filed
Pinnacle Associates Ltd	–	–	–	–	Not filed
Cohen Klingenstein LLC	–	–	–	–	Not filed
Transcend Wealth Collective, LLC	–	–	–	–	Not filed
Clearstead Advisors, LLC	–	–	–	–	Not filed
Vestcor Inc	–	–	–	–	Not filed
AMG National Trust Bank	–	–	–	–	Not filed