What does CUSIP 571748102 represent in this 13F holders report?

CUSIP 571748102 is the security identifier for MRSH - MARSH & MCLENNAN COMPANIES, INC. - COM used to aggregate holder disclosures.

How many institutions held MRSH - MARSH & MCLENNAN COMPANIES, INC. - COM in Q1 2021?

965 institutional investors reported MRSH - MARSH & MCLENNAN COMPANIES, INC. - COM for Q1 2021. Use the holders table for investor-level position and value details.

MARSH & MCLENNAN COMPANIES, INC. - COM (MRSH)

CUSIP: 571748102

Q1 2021 13F Holders as of 31 Mar 2021

Type / Class: Equity / COM
Total 13F shares: 448,747,076
Share change: +5,109,623
Total reported value: $54,641,979,623
Put/Call ratio: 89%
Price per share: $121.80
Number of holders: 965
Value change: +$636,913,367
Number of buys: 432
Number of sells: 428

Quarterly Holders Quick Answers

What is CUSIP 571748102?
CUSIP 571748102 identifies MRSH - MARSH & MCLENNAN COMPANIES, INC. - COM in SEC institutional holdings data.

Need full ownership history?
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Back to full security ownership history for the broader multi-quarter picture.
Latest 13F filings for newly reported positions across managers.
Latest Schedule 13D/13G reports for ownership changes outside the 13F cadence.
SEC investors directory for manager drilldown.

Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q2 2021
Previous quarter: Q4 2020

Recent filing periods for CUSIP 571748102:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of MRSH - MARSH & MCLENNAN COMPANIES, INC. - COM (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
VANGUARD GROUP INC	13F	Company	— class O/S missing	42,016,368	$4,915,917,000	—	31 Dec 2020	13F
BlackRock Finance, Inc.	13F	Company	— class O/S missing	41,242,575	$4,825,383,000	—	31 Dec 2020	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	— class O/S missing	33,053,215	$3,867,186,000	—	31 Dec 2020	13F
STATE STREET CORP	13F	Company	— class O/S missing	22,325,512	$2,612,085,000	—	31 Dec 2020	13F
Capital International Investors	13F	Company	— class O/S missing	21,798,682	$2,549,823,000	—	31 Dec 2020	13F
WELLINGTON MANAGEMENT GROUP LLP	13F	Company	— class O/S missing	18,860,188	$2,206,641,000	—	31 Dec 2020	13F
Capital World Investors	13F	Company	— class O/S missing	16,409,747	$1,919,877,000	—	31 Dec 2020	13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/	13F	Company	— class O/S missing	16,204,284	$1,895,901,000	—	31 Dec 2020	13F
FMR LLC	13F	Company	— class O/S missing	12,449,045	$1,456,538,000	—	31 Dec 2020	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	— class O/S missing	8,367,498	$976,706,000	—	31 Dec 2020	13F
BANK OF AMERICA CORP /DE/	13F	Company	— class O/S missing	6,815,622	$797,428,000	—	31 Dec 2020	13F
PRIMECAP MANAGEMENT CO/CA/	13F	Company	— class O/S missing	6,705,835	$784,583,000	—	31 Dec 2020	13F
JPMORGAN CHASE & CO	13F	Company	— class O/S missing	6,611,332	$773,526,000	—	31 Dec 2020	13F
NORTHERN TRUST CORP	13F	Company	— class O/S missing	6,540,057	$765,187,000	—	31 Dec 2020	13F
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	13F	Company	— class O/S missing	6,007,045	$702,824,264	—	31 Dec 2020	13F
Mawer Investment Management Ltd.	13F	Company	— class O/S missing	5,959,581	$697,144,000	—	31 Dec 2020	13F
AMERIPRISE FINANCIAL INC	13F	Company	— class O/S missing	5,785,670	$676,896,000	—	31 Dec 2020	13F
Nuveen Asset Management, LLC	13F	Company	— class O/S missing	5,333,050	$623,968,000	—	31 Dec 2020	13F
Artisan Partners Limited Partnership	13F	Company	— class O/S missing	5,032,938	$588,854,000	—	31 Dec 2020	13F
UBS Group AG	13F	Company	— class O/S missing	4,940,528	$578,042,000	—	31 Dec 2020	13F
BERKSHIRE HATHAWAY INC	13F	Company	— class O/S missing	4,267,825	$499,336,000	—	31 Dec 2020	13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	13F	Company	— class O/S missing	4,087,933	$478,288,000	—	31 Dec 2020	13F
Bank of New York Mellon Corp	13F	Company	— class O/S missing	3,935,712	$460,479,000	—	31 Dec 2020	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	— class O/S missing	3,869,618	$452,745,000	—	31 Dec 2020	13F
Legal & General Group Plc	13F	Company	— class O/S missing	3,403,694	$398,232,000	—	31 Dec 2020	13F
Findlay Park Partners LLP	13F	Company	— class O/S missing	3,376,525	$395,053,000	—	31 Dec 2020	13F
CANADA PENSION PLAN INVESTMENT BOARD	13F	Company	— class O/S missing	3,358,169	$392,906,000	—	31 Dec 2020	13F
LAZARD ASSET MANAGEMENT LLC	13F	Company	— class O/S missing	3,264,295	$381,922,000	—	31 Dec 2020	13F
GOLDMAN SACHS GROUP INC	13F	Company	— class O/S missing	3,115,299	$364,490,000	—	31 Dec 2020	13F
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC	13F	Individual	— class O/S missing	3,093,843	$361,980,000	—	31 Dec 2020	13F
DEUTSCHE BANK AG\	13F	Company	— class O/S missing	3,020,671	$353,418,000	—	31 Dec 2020	13F
WELLS FARGO & COMPANY/MN	13F	Company	— class O/S missing	2,834,464	$331,631,000	—	31 Dec 2020	13F
NIPPON LIFE INSURANCE CO	13F	Company	— class O/S missing	2,622,700	$306,856,000	—	31 Dec 2020	13F
NORGES BANK	13F	Company	— class O/S missing	2,422,131	$283,389,000	—	31 Dec 2020	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	— class O/S missing	2,255,533	$263,898,000	—	31 Dec 2020	13F
JANUS HENDERSON GROUP PLC	13F	Company	— class O/S missing	2,106,689	$246,480,000	—	31 Dec 2020	13F
BAHL & GAYNOR INC	13F	Company	— class O/S missing	2,074,467	$242,713,000	—	31 Dec 2020	13F
Swiss National Bank	13F	Company	— class O/S missing	2,022,832	$236,671,000	—	31 Dec 2020	13F
PARAMETRIC PORTFOLIO ASSOCIATES LLC	13F	Company	— class O/S missing	1,927,043	$225,464,000	—	31 Dec 2020	13F
DIAMOND HILL CAPITAL MANAGEMENT INC	13F	Company	— class O/S missing	1,911,122	$223,601,000	—	31 Dec 2020	13F
Coho Partners, Ltd.	13F	Company	— class O/S missing	1,876,956	$219,604,000	—	31 Dec 2020	13F
Invesco Ltd.	13F	Company	— class O/S missing	1,837,116	$214,943,000	—	31 Dec 2020	13F
AMUNDI ASSET MANAGEMENT US, INC.	13F	Company	— class O/S missing	1,812,293	$212,040,000	—	31 Dec 2020	13F
Sumitomo Mitsui Trust Group, Inc.	13F	Company	— class O/S missing	1,803,395	$210,997,000	—	31 Dec 2020	13F
MORGAN STANLEY	13F	Company	— class O/S missing	1,796,348	$210,172,000	—	31 Dec 2020	13F
FIRST TRUST ADVISORS LP	13F	Company	— class O/S missing	1,780,046	$208,265,000	—	31 Dec 2020	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	— class O/S missing	1,583,919	$185,299,000	—	31 Dec 2020	13F
Polar Capital Holdings Plc	13F	Company	— class O/S missing	1,412,582	$165,272,000	—	31 Dec 2020	13F
CREDIT SUISSE AG/	13F	Company	— class O/S missing	1,323,979	$154,906,000	—	31 Dec 2020	13F
VIKING GLOBAL INVESTORS LP	13F	Company	— class O/S missing	1,320,572	$154,507,000	—	31 Dec 2020	13F

Institutional Holders of MARSH & MCLENNAN COMPANIES, INC. - COM (MRSH) as of Q1 2021

As of 31 Mar 2021, MARSH & MCLENNAN COMPANIES, INC. - COM (MRSH) was held by 965 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 448,747,076 shares. The largest 10 holders included VANGUARD GROUP INC, BlackRock Inc., PRICE T ROWE ASSOCIATES INC /MD/, STATE STREET CORP, Capital International Investors, WELLINGTON MANAGEMENT GROUP LLP, Capital World Investors, MASSACHUSETTS FINANCIAL SERVICES CO /MA/, FMR LLC, and GEODE CAPITAL MANAGEMENT, LLC. This page lists 968 institutional shareholders reporting positions in this security for the Q1 2021 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2021 vs Q4 2020 Across Filers

Q4 2020 holders

959

Q1 2021 holders

965

Holder diff

Investor	Q4 2020 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q4 2020 Value $	Q1 2021 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.