Vanguard Group Inc ownership in MRSH / Marsh & McLennan Companies, Inc.

Marsh & McLennan Companies, Inc.

US ˙ NYSE ˙ US5717481023

Security	MRSH / Marsh & McLennan Companies, Inc.
Institution	Vanguard Group Inc
Latest Disclosed Ownership	43,794,070 shares
Ownership	8.88%

2024-02-13 - Vanguard Group Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 43,794,070 shares of Marsh & McLennan Companies, Inc. (US:MRSH). This represents 8.88 percent ownership of the company. In their previous filing dated 2023-02-09 , Vanguard Group Inc had reported owning 43,717,203 shares, indicating an increase of 0.18 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File Date	Effective Date	Form	Prev Shares	Latest Shares	ΔShares (Percent)	Ownership (Percent)	ΔOwnership (Percent)
2024-02-13	2024-02-13	13G/A	43,717,203	43,794,070	0.18	8.88	0.79
2023-02-09	2023-02-09	13G/A	42,128,173	43,717,203	3.77	8.81	5.64
2022-02-10	2022-02-10	13G/A	42,016,368	42,128,173	0.27	8.34	0.72
2021-02-10	2021-02-10	13G/A	39,102,627	42,016,368	7.45	8.28	6.98
2020-02-12	2020-02-12	13G/A	37,383,171	39,102,627	4.60	7.74	4.31
2019-02-11	2019-02-11	13G/A	35,635,569	37,383,171	4.90	7.42	6.30
2018-02-09	2018-02-09	13G/A	32,955,538	35,635,569	8.13	6.98	9.23
2017-02-10	2017-02-10	13G/A	31,179,034	32,955,538	5.70	6.39	7.04
2016-02-10	2016-02-10	13G/A		31,179,034		5.97
2015-02-11	2015-02-11	13G		30,005,670		5.54

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-01-29	2025-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	46,589,633	387,100	0.84	8,643,309	-7.17	0.1253
2025-11-07	2025-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	46,202,533	43,971	0.10	9,311,196	-7.74	0.1394
2025-08-11	2025-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	46,158,562	837,117	1.85	10,092,108	-8.75	0.1634
2025-05-09	2025-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	45,321,445	581,930	1.30	11,059,792	16.38	0.2000
2025-02-11	2024-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	44,739,515	356,618	0.80	9,503,120	-4.02	0.1655
2024-11-13	2024-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	44,382,897	344,450	0.78	9,901,380	6.70	0.1773
2024-08-13	2024-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	44,038,447	121,177	0.28	9,279,782	2.58	0.1783
2024-05-10	2024-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	43,917,270	119,236	0.27	9,046,079	9.01	0.1792
2024-03-11	2023-12-31	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	43,798,034	180,128	0.41	8,298,414	-0.02	0.1813
2024-02-14	2023-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	43,798,034	180,128		8,298,414		0.1575
2023-12-18	2023-09-30	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	43,617,906	50,365	0.12	8,300,488	1.30	0.2039
2023-11-14	2023-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	43,617,906	50,365		8,300,488		0.2039
2023-08-14	2023-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	43,567,541	-140,967	-0.32	8,194,183	12.56	0.1943
2023-07-14	2023-03-31	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	43,708,508	-8,695	-0.02	7,279,652	0.63	0.1854
2023-05-15	2023-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	43,704,544	-12,659		7,278,992		0.1854
2023-02-10	2022-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	43,717,203	188,392	0.43	7,234,323	11.32	0.1970
2022-11-14	2022-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	43,528,811	227,036	0.52	6,498,416	-3.33	0.1911
2022-08-12	2022-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	43,301,775	546,964	1.28	6,722,600	-7.74	0.1890
2022-05-13	2022-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	42,754,811	626,638	1.49	7,286,275	-0.50	0.1724
2022-02-14	2021-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	42,128,173	140,383	0.33	7,322,717	15.17	0.1663
2021-11-12	2021-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	41,987,790	96,260	0.23	6,358,211	7.89	0.1579
2021-08-13	2021-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	41,891,530	281,438	0.68	5,893,300	16.28	0.1467
2021-05-14	2021-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	41,610,092	-406,276	-0.97	5,068,110	3.10	0.1371
2021-02-12	2020-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	42,016,368	-332,008	-0.78	4,915,917	1.21	0.1426
2020-11-16	2020-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	42,348,376	-1,258,114	-2.89	4,857,357	3.74	0.1607
2020-08-14	2020-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	43,606,490	3,571,837	8.92	4,682,030	35.26	0.1661
2020-05-15	2020-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	40,034,653	932,026	2.38	3,461,396	-20.55	0.1475
2020-02-14	2019-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	39,102,627	68,465	0.18	4,356,424	11.55	0.1486
2019-11-14	2019-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	39,034,162	179,228	0.46	3,905,368	0.76	0.1448
2019-08-14	2019-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	38,854,934	974,005	2.57	3,875,780	8.96	0.1458
2019-05-15	2019-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	37,880,929	497,758	1.33	3,557,019	19.31	0.1395
2019-02-14	2018-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	37,383,171	509,079	1.38	2,981,308	-2.26	0.1340
2018-12-13	2018-09-30	13F/A-2	MARSH & MCLENNAN COS	COM	571748102	36,874,092	218,725	0.60	3,050,224	1.52	0.1192
2018-11-23	2018-09-30	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	36,874,092	0		3,050,224		0.1192
2018-11-14	2018-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	36,874,092	218,725		3,050,224
2018-08-14	2018-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	36,655,367	487,719	1.35	3,004,640	0.59	0.1257
2018-05-15	2018-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	36,167,648	532,079	1.49	2,987,087	2.99	0.1306
2018-02-14	2017-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	35,635,569	353,363	1.00	2,900,378	-1.91	0.1268
2017-11-14	2017-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	35,282,206	346,140	0.99	2,957,001	8.57	0.1382
2017-08-24	2017-06-30	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	34,936,066	875,454	2.57	2,723,616	8.22	0.1341
2017-08-11	2017-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	34,936,066	875,454		2,723,616
2017-05-12	2017-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	34,060,612	1,105,074	3.35	2,516,739	12.99	0.1294
2017-02-14	2016-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	32,955,538	669,315	2.07	2,227,466	2.59	0.1243
2016-11-14	2016-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	32,286,223	768,870	2.44	2,171,249	0.63	0.1275
2016-08-10	2016-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	31,517,353	498,068	1.61	2,157,678	14.43	0.1340
2016-05-13	2016-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	31,019,285	-159,749	-0.51	1,885,662	9.07	0.1222
2016-02-08	2015-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	31,179,034	474,535	1.55	1,728,877	7.83	0.1162
2015-11-12	2015-09-30	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	30,704,499	35,806	0.12	1,603,390	-7.79	0.0681
2015-11-12	2015-09-30	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	30,704,499	35,806		1,603,390		0.0681
2015-08-13	2015-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	30,668,693	368,974	1.22	1,738,914	2.32	0.1175
2015-05-15	2015-03-31	13F/A-1	MARSH & MCLENNAN COS	COM	571748102	30,299,719	294,049	0.98	1,699,512	-1.05	0.1153
2015-05-14	2015-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	30,299,719			1,699,512
2015-02-12	2014-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	30,005,670	1,159,149	4.02	1,717,524	13.76	0.1237
2014-11-12	2014-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	28,846,521	610,614	2.16	1,509,827	3.19	0.1177
2014-08-11	2014-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	28,235,907	629,960	2.28	1,463,185	7.51	0.1153
2014-05-13	2014-03-31	13F	MARSH & MCLENNAN COS	COM	571748102	27,605,947	591,961	2.19	1,360,973	4.18	0.1145
2014-02-12	2013-12-31	13F	MARSH & MCLENNAN COS	COM	571748102	27,013,986	382,724	1.44	1,306,396	12.64	0.1149
2013-11-07	2013-09-30	13F	MARSH & MCLENNAN COS	COM	571748102	26,631,262	450,162	1.72	1,159,792	10.97	0.1133
2013-08-13	2013-06-30	13F	MARSH & MCLENNAN COS	COM	571748102	26,181,100	26,181,100		1,045,150		0.1098

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.