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MRSH

Marsh & Mclennan Companies, Inc.
$181.53 +3.22 (+1.81%) At close · Jul 13
Market Cap
$87.46B
Shares
481,794,501

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 1,532
Total Value: $74,031,711,117
Total Shares: 426,985,989
Showing 1–100 of 1,556 holdings by value · page 1 of 16

Institutional Ownership Trend

26 quarters

Superinvestors Holding MRSH

All superinvestors →
Bill Nygren $896,583,690 Thomas Gayner $132,429,075 Joel Greenblatt $35,522,386 Mario Gabelli $3,408,292 Stephen Yacktman $3,361,461

Holder Concentration

Across 1,540 13F filers
Top Holder
9.9%
Jun 2023 → Mar 2026 · range 9.9% – 10.7%
of institutional value
Top 5
30.7%
Jun 2023 → Mar 2026 · range 30.7% – 33.5%
of institutional value
Top 10
45.1%
Jun 2023 → Mar 2026 · range 45.1% – 48.0%
of institutional value
HHI
291
Jun 2023 → Mar 2026 · range 291 – 333
Broadly held
Showing 100 of 1,556
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $7,295,597,693 9.85% 42,061,676
Mega VANGUARD CAPITAL MANAGEMENT LLC $5,458,068,055 7.37% 31,467,674
Mega STATE STREET CORP $3,828,205,410 5.17% 22,070,945
Mega Capital World Investors $3,116,754,617 4.21% 17,969,182
Mega WELLINGTON MANAGEMENT GROUP LLP $3,012,949,472 4.07% 17,370,709
Mega Capital International Investors $2,725,567,802 3.68% 15,713,853
Mega GEODE CAPITAL MANAGEMENT, LLC $2,324,953,632 3.14% 13,404,172
Mega Capital Research Global Investors $1,960,191,058 2.65% 11,301,188
Mega PRICE T ROWE ASSOCIATES INC /MD/ $1,903,836,806 2.57% 10,976,286
Mega FMR LLC $1,765,843,279 2.39% 10,180,705
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $1,422,343,593 1.92% 8,200,309
Mega MORGAN STANLEY $1,122,913,904 1.52% 6,473,992
Mega Clearbridge Investments, LLC $1,114,161,451 1.50% 6,423,531
Mega JPMORGAN CHASE & CO $1,056,898,832 1.43% 6,093,392
Mega AMERIPRISE FINANCIAL INC $951,986,740 1.29% 5,488,537
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $898,907,568 1.21% 5,182,517
Large HARRIS ASSOCIATES L P $896,583,690 1.21% 5,169,119
Mega NORTHERN TRUST CORP Bank $861,192,948 1.16% 4,965,079
Mega BANK OF AMERICA CORP /DE/ Bank $856,776,044 1.16% 4,939,614
Large Artisan Partners Limited Partnership $845,717,396 1.14% 4,875,857
Mega UBS Group AG $818,873,230 1.11% 4,721,091
Mega AMERICAN CENTURY COMPANIES INC $734,444,018 0.99% 4,234,327
Mega Nuveen, LLC $722,850,618 0.98% 4,167,487
Large Ninety One UK Ltd $698,854,679 0.94% 4,029,142
Mega Invesco Ltd. $673,814,736 0.91% 3,884,778
Mega DEUTSCHE BANK AG\ Bank $642,488,976 0.87% 3,704,174
Mega AQR CAPITAL MANAGEMENT LLC $637,253,040 0.86% 3,673,987
Mega GOLDMAN SACHS GROUP INC $637,074,737 0.86% 3,672,959
Large Mawer Investment Management Ltd. $602,841,085 0.81% 3,475,590
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $599,197,941 0.81% 3,454,586
Mega ROYAL BANK OF CANADA Bank $575,260,622 0.78% 3,316,579
Mega Bank of New York Mellon Corp Bank $564,409,933 0.76% 3,254,021
Mega Legal & General Group Plc $531,829,613 0.72% 3,066,184
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $526,099,520 0.71% 3,033,148
Mega VANGUARD FIDUCIARY TRUST CO Bank $474,170,672 0.64% 2,733,760
Mega WELLS FARGO & COMPANY/MN $447,328,935 0.60% 2,579,008
Mega BNP PARIBAS ARBITRAGE, SA $445,167,577 0.60% 2,566,547
Large STIFEL FINANCIAL CORP $400,211,762 0.54% 2,307,361
Mega Amundi $398,732,583 0.54% 2,298,833
Large PARNASSUS INVESTMENTS, LLC $383,400,644 0.52% 2,210,439
Mega DIMENSIONAL FUND ADVISORS LP $352,785,677 0.48% 2,033,933
Mid London & Capital Asset Management Ltd $351,019,784 0.47% 2,023,752
Mega ALLIANCEBERNSTEIN L.P. $343,653,362 0.46% 1,981,282
Mega D. E. Shaw & Co., Inc. $299,990,446 0.41% 1,729,550
Mid Navera Investment Management Ltd. $291,508,048 0.39% 1,680,646
Large LAZARD ASSET MANAGEMENT LLC $281,640,303 0.38% 1,623,755
Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance $272,827,657 0.37% 1,572,947
Mega FRANKLIN RESOURCES INC $266,755,689 0.36% 1,537,940
Mega Swiss National Bank Bank $249,386,410 0.34% 1,437,800
Mega BARCLAYS PLC $238,555,324 0.32% 1,375,355
Large Rathbones Group PLC $235,366,793 0.32% 1,356,972
Large CANADA LIFE ASSURANCE Co Insurance $231,962,316 0.31% 1,337,344
Mega FIRST TRUST ADVISORS LP $231,104,953 0.31% 1,332,401
Mid NIPPON LIFE INSURANCE CO Insurance $218,562,704 0.30% 1,311,350
Mega RAYMOND JAMES FINANCIAL INC $213,007,352 0.29% 1,228,062
Large Polar Capital Holdings Plc $211,609,000 0.29% 1,220,000
Large DekaBank Deutsche Girozentrale Bank $206,976,323 0.28% 1,193,291
Mid JENSEN INVESTMENT MANAGEMENT INC $199,676,333 0.27% 1,151,204
Mega ENVESTNET ASSET MANAGEMENT INC $196,602,626 0.27% 1,133,483
Mega Mitsubishi UFJ Asset Management Co., Ltd. $194,560,599 0.26% 1,121,710
Mega California Public Employees Retirement System Pension $191,810,202 0.26% 1,105,853
Large Swedbank AB Bank $191,708,214 0.26% 1,105,265
Mega Vanguard Global Advisers, LLC $190,468,046 0.26% 1,098,115
Mega Sumitomo Mitsui Trust Group, Inc. $189,788,469 0.26% 1,094,197
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $189,396,646 0.26% 1,091,938
Mega HSBC HOLDINGS PLC $170,966,192 0.23% 985,680
Mega VANGUARD ASSET MANAGEMENT, Ltd $170,039,105 0.23% 980,335
Large STOREBRAND ASSET MANAGEMENT AS $163,471,941 0.22% 942,473
Mega TD Asset Management Inc $162,933,379 0.22% 939,368
Mega RHUMBLINE ADVISERS $156,471,673 0.21% 902,114
Mega FIL Ltd $150,474,292 0.20% 867,537
Large NATIXIS ADVISORS, LLC $147,365,894 0.20% 849,616
Large ACADIAN ASSET MANAGEMENT LLC $146,403,421 0.20% 844,067
Mid Longview Partners (Guernsey) LTD $140,547,922 0.19% 810,308
Mega CANADA PENSION PLAN INVESTMENT BOARD Pension $140,431,884 0.19% 809,639
Large Beutel, Goodman & Co Ltd. $135,251,106 0.18% 779,770
Large Markel Group Inc. $132,429,075 0.18% 763,500
Large Capital International, Inc./CA/ $128,640,059 0.17% 741,655
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $126,583,463 0.17% 729,798
Large JONES FINANCIAL COMPANIES LLLP $125,541,201 0.17% 723,789
Mega PRIMECAP MANAGEMENT CO/CA/ $124,450,375 0.17% 717,500
Large MACKENZIE FINANCIAL CORP $123,805,314 0.17% 713,781
Large Caisse de depot et placement du Quebec $123,272,476 0.17% 710,709
Mega TWO SIGMA INVESTMENTS, LP $117,359,565 0.16% 676,619
Large SG Americas Securities, LLC Broker-Dealer $111,823,908 0.15% 644,704
Large Epoch Investment Partners, Inc. $111,731,284 0.15% 644,170
Mega PNC FINANCIAL SERVICES GROUP, INC. $111,590,788 0.15% 643,360
Large Assenagon Asset Management S.A. $109,074,514 0.15% 654,434
Large ASSETMARK, INC $109,045,586 0.15% 628,686
Large JUPITER ASSET MANAGEMENT LTD $107,966,554 0.15% 622,465
Mega PRINCIPAL FINANCIAL GROUP INC $105,882,031 0.14% 610,447
Large Robeco Institutional Asset Management B.V. $104,989,458 0.14% 605,301
Large MARSHALL WACE, LLP $104,946,441 0.14% 605,053
Large PRUDENTIAL FINANCIAL INC $104,398,340 0.14% 601,893
Mid Cryder Capital Partners LLP $102,241,143 0.14% 589,456
Large DAVENPORT & Co LLC $102,009,540 0.14% 612,045
Large Mariner, LLC $99,919,340 0.13% 576,070
Large Universal- Beteiligungs- und Servicegesellschaft mbH $96,381,481 0.13% 555,673
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $95,366,799 0.13% 549,823
Mid Quilter Plc $91,790,779 0.12% 529,206
Key facts CIK 62709 CUSIP 571748102 13F (30d) 147 filings 122 filers Visit website Investor relations

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