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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.

13F holders, Q1 2025

Institutional positions in Marsh & McLennan Companies, Inc. as of Mar 31, 2025. 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

Institutional holders
1,627
+79 vs. Q4 2024
Shares held
442.6M
+4.34M (+1.0%) vs. Q4 2024
Total value
$108.0B
+$14.9B (+16.0%) vs. Q4 2024
New holders
178
626 more added
Sold out
99
561 more reduced

30 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2024: 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 holdersQ1 2025: 1,627 institutions
Q1 2021: 979 institutionsQ2 2021: 1,007 institutionsQ3 2021: 1,078 institutionsQ4 2021: 1,170 institutionsQ1 2022: 1,151 institutionsQ2 2022: 1,150 institutionsQ3 2022: 1,159 institutionsQ4 2022: 1,223 institutionsQ1 2023: 1,228 institutionsQ2 2023: 1,258 institutionsQ3 2023: 1,294 institutionsQ4 2023: 1,376 institutionsQ1 2024: 1,444 institutionsQ2 2024: 1,476 institutionsQ3 2024: 1,531 institutionsQ4 2024: 1,578 institutionsQ1 2025: 1,627 institutionsQ2 2025: 1,610 institutionsQ3 2025: 1,576 institutionsQ4 2025: 1,594 institutionsQ1 2026: 1,548 institutionsQ2 2026: 1,506 institutions
Value heldQ1 2025: $108.0B
Q1 2021: $54.7BQ2 2021: $63.6BQ3 2021: $68.0BQ4 2021: $77.6BQ1 2022: $75.2BQ2 2022: $68.6BQ3 2022: $65.5BQ4 2022: $72.3BQ1 2023: $72.1BQ2 2023: $81.5BQ3 2023: $82.0BQ4 2023: $82.4BQ1 2024: $89.9BQ2 2024: $92.3BQ3 2024: $97.1BQ4 2024: $94.2BQ1 2025: $108.0BQ2 2025: $97.3BQ3 2025: $87.2BQ4 2025: $80.9BQ1 2026: $76.1BQ2 2026: $73.1B
Institutions holding MRSH and their total value by quarter
QuarterHoldersValue
Q2 20261,506$73.1B
Q1 20261,548$76.1B
Q4 20251,594$80.9B
Q3 20251,576$87.2B
Q2 20251,610$97.3B
Q1 20251,627$108.0B
Q4 20241,578$94.2B
Q3 20241,531$97.1B
Q2 20241,476$92.3B
Q1 20241,444$89.9B
Q4 20231,376$82.4B
Q3 20231,294$82.0B
Q2 20231,258$81.5B
Q1 20231,228$72.1B
Q4 20221,223$72.3B
Q3 20221,159$65.5B
Q2 20221,150$68.6B
Q1 20221,151$75.2B
Q4 20211,170$77.6B
Q3 20211,078$68.0B
Q2 20211,007$63.6B
Q1 2021979$54.7B

Institutions, Q1 2025

Shares, value and share of portfolio for each institution holding Marsh & McLennan Companies, Inc.; share changes are against Q4 2024.

Institutions holding MRSH in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Teachers Retirement System344,589$84.1M0.19%−12,598−3.5%Reduced
Silvercrest Asset Management Group LLC348,798$85.1M0.61%+29,880+9.4%Added
Adage Capital Partners GP, L.L.C.357,861$87.3M0.16%−11,300−3.1%Reduced
Truist Financial Corp360,865$88.1M0.14%−5,265−1.4%Reduced
CI Private Wealth, LLC361,411$88.2M0.14%+369+0.1%Added
APG Asset Management N.V.393,736$88.9M0.28%−21,100−5.1%Reduced
Erste Asset Management GmbH366,489$89.2M1.14%+12,514+3.5%Added
Russell Investments Group, Ltd.375,247$91.5M0.13%−86,317−18.7%Reduced
Mitsubishi UFJ Trust & Banking Corp376,980$92.0M0.24%+11,741+3.2%Added
Standard Life Aberdeen plc379,069$92.2M0.18%−269,326−41.5%Reduced
Sterling Capital Management LLC382,708$93.4M1.45%+46,547+13.8%Added
Schroder Investment Management Group402,611$97.6M0.10%−63,016−13.5%Reduced
Millennium Management LLC417,979$102.0M0.10%−358,209−46.1%Reduced
Capital International Inc420,421$102.6M1.24%−212−0.1%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)421,095$102.8M0.30%+68,439+19.4%Added
Healthcare of Ontario Pension Plan Trust Fund426,856$104.2M0.23%−38,144−8.2%Reduced
Birch Hill Investment Advisors LLC430,488$105.1M4.98%+377+0.1%Added
Impax Asset Management Group plc440,881$106.4M0.64%−1,109,830−71.6%Reduced
Close Asset Management Ltd439,340$107.2M3.08%−227,469−34.1%Reduced
Bristol Gate Capital Partners Inc.440,348$107.5M5.25%+2,892+0.7%Added
Mariner, LLC460,802$112.4M0.19%+12,256+2.7%Added
Johnson Investment Counsel Inc461,278$112.6M1.09%+282+0.1%Added
National Bank of Canada470,235$114.8M0.13%−185,674−28.3%Reduced
State Board of Administration of Florida Retirement System478,179$116.7M0.23%00.0%Unchanged
Pictet Asset Management Holding SA529,076$129.1M0.14%−9,660−1.8%Reduced
Bradley Foster & Sargent Inc539,387$131.6M2.25%+12,400+2.4%Added
AQR Capital Management LLC551,616$134.6M0.14%+136,959+33.0%Added
Credit Agricole S A569,410$139.0M0.52%−103,636−15.4%Reduced
Citigroup Inc574,994$140.3M0.11%+243,329+73.4%Added
The PNC Financial Services Group, Inc.595,851$145.4M0.08%+7,910+1.3%Added
CCLA Investment Management Ltd601,373$146.7M2.60%+52,827+9.6%Added
Worldquant Millennium Advisors LLC603,467$147.3M0.93%−12,570−2.0%Reduced
Renaissance Technologies LLC619,000$151.1M0.23%+115,900+23.0%Added
New York State Common Retirement Fund628,919$153.5M0.23%−41,969−6.3%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH630,885$154.0M0.31%+71,829+12.8%Added
Prudential Financial Inc637,307$155.5M0.22%+153,385+31.7%Added
Assetmark, Inc658,152$160.6M0.44%−8,962−1.3%Reduced
Lord, Abbett & Co. LLC667,046$162.8M0.58%00.0%Unchanged
Epoch Investment Partners, Inc.720,834$175.9M0.91%+146,644+25.5%Added
Mackenzie Financial Corp731,080$178.4M0.25%−38,799−5.0%Reduced
Markel Group Inc.SuperinvestorMarkel Group743,500$181.4M1.61%+8,000+1.1%Added
Manufacturers Life Insurance Company, The748,006$182.5M0.17%−233,583−23.8%Reduced
Capital Group Private Client Services, Inc.767,655$187.3M1.83%−25,745−3.2%Reduced
Rathbone Brothers plc770,666$188.1M0.91%+114,817+17.5%Added
Nordea Investment Management AB778,763$190.4M0.20%−92,522−10.6%Reduced
Montrusco Bolton Investments Inc.823,645$194.8M2.56%+71,820+9.6%Added
Natixis Advisors, L.P.804,753$196.4M0.36%+16,022+2.0%Added
D. E. Shaw & Co., Inc.806,914$196.9M0.23%+461,843+133.8%Added
Alphinity Investment Management Pty Ltd827,566$202.0M1.37%−1,600,289−65.9%Reduced
Principal Financial Group Inc840,293$205.1M0.12%+3,600+0.4%Added
California State Teachers Retirement System849,663$207.3M0.26%−8,441−1.0%Reduced
Bank of Montreal852,473$208.0M0.11%−152,071−15.1%Reduced
Polar Capital Holdings Plc874,000$213.3M1.32%00.0%Unchanged
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.891,714$217.6M0.20%+93,928+11.8%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main896,756$218.8M0.25%−55,925−5.9%Reduced
Raymond James Financial Inc933,112$227.7M0.09%−42,729−4.4%Reduced
TD Asset Management Inc968,810$236.4M0.22%+152,701+18.7%Added
Voloridge Investment Management, LLC976,695$238.3M0.88%−60,871−5.9%Reduced
National Pension Service978,462$238.8M0.23%+44,961+4.8%Added
Rhumbline Advisers989,962$241.6M0.23%+28,589+3.0%Added
Caisse de Depot Et Placement du Quebec992,436$242.2M0.51%+164,855+19.9%Added
Storebrand Asset Management AS996,143$243.1M0.79%−175,726−15.0%Reduced
Aviva PLC1,048,515$255.9M0.62%+43,893+4.4%Added
First Trust Advisors LP1,077,600$263.0M0.23%−48,024−4.3%Reduced
American Century Companies Inc1,105,037$269.7M0.17%−19,570−1.7%Reduced
Findlay Park Partners LLP1,130,367$275.8M2.84%+242,400+27.3%Added
FIL Ltd1,141,469$278.6M0.26%+5,454+0.5%Added
DekaBank Deutsche Girozentrale1,175,283$280.1M0.55%−18,008−1.5%Reduced
Qube Research & Technologies Ltd1,162,486$283.7M0.44%−289,824−20.0%Reduced
Sumitomo Mitsui Trust Holdings, Inc.1,189,105$290.2M0.21%+5,709+0.5%Added
Acadian Asset Management LLC1,205,122$294.1M0.83%−363,518−23.2%Reduced
Waverton Investment Management Ltd1,205,958$294.3M4.55%+32,308+2.8%Added
Great West Life Assurance Co1,205,627$294.8M0.52%+18,315+1.5%Added
Envestnet Asset Management Inc1,241,197$302.9M0.10%+16,879+1.4%Added
Swiss National Bank1,385,100$338.0M0.24%−4,200−0.3%Reduced
Alliancebernstein L.P.1,392,735$339.9M0.12%+54,322+4.1%Added
HSBC Holdings PLC1,399,608$340.7M0.23%−5,317−0.4%Reduced
Veritas Investment Partners (UK) Ltd.1,511,296$368.8M6.75%+71,853+5.0%Added
Amundi1,528,870$373.5M0.14%−2,544,106−62.5%Reduced
Franklin Resources Inc1,542,849$376.5M0.11%+615,324+66.3%Added
BNP Paribas Arbitrage, SA1,627,515$397.2M0.30%+556,232+51.9%Added
Janus Henderson Group PLC1,942,306$470.8M0.26%−123,190−6.0%Reduced
Bahl & Gaynor Inc1,960,496$478.4M2.44%+55,867+2.9%Added
Robeco Institutional Asset Management B.V.1,978,219$482.7M0.94%+304,388+18.2%Added
Dimensional Fund Advisors LP2,062,278$503.2M0.13%+33,651+1.7%Added
Barclays PLC2,118,514$517.0M0.24%−384,177−15.4%Reduced
Ako Capital LLP2,121,730$517.8M6.72%+58,902+2.9%Added
California Public Employees Retirement System2,171,746$530.0M0.37%−66,753−3.0%Reduced
Stifel Financial Corp2,271,586$554.3M0.59%+46,654+2.1%Added
Lazard Asset Management LLC2,338,379$570.6M0.88%−397,673−14.5%Reduced
Ninety One UK Ltd2,370,678$578.5M1.61%+1,436,044+153.6%Added
Longview Partners (Guernsey) LTD2,405,616$587.0M4.72%−155,498−6.1%Reduced
Invesco Ltd.2,595,714$633.4M0.12%−231,894−8.2%Reduced
Nippon Life Insurance Co2,622,700$640.0M10.15%00.0%Unchanged
Jensen Investment Management Inc2,629,686$641.7M7.10%−410,865−13.5%Reduced
Royal Bank of Canada2,646,125$645.7M0.14%+198,702+8.1%Added
Primecap Management Co2,687,926$655.9M0.54%−44,400−1.6%Reduced
Parnassus Investments2,797,477$682.7M1.64%−771,664−21.6%Reduced
Charles Schwab Investment Management Inc2,858,136$697.5M0.13%+65,778+2.4%Added
Clearbridge Investments, LLC2,943,040$718.2M0.63%−82,669−2.7%Reduced