Marsh & McLennan Companies, Inc.
DE ˙ DB ˙ US5717481023
135,70 € ↓ -3,10 (-2,23%)
2026-06-03
DEL PRIS
SecurityDE:MSN / Marsh & McLennan Companies, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership319,008 shares
Latest Disclosed Value $ 55,331,938
Man Group plc reports 352.02% increase in ownership of MSN / Marsh & McLennan Companies, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 319,008 shares of Marsh & McLennan Companies, Inc. (DE:MSN) valued at $47,739,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 70,574 shares of Marsh & McLennan Companies, Inc.. This represents a change in shares of 352.02% during the quarter. The current value of the position is $43,289,386 USD.

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 Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MARSH & MCLENNAN COS COM 571748102 319,008 248,434 352.02 55,332 322.63 0.1004
2026-02-17 2025-12-31 13F MARSH & MCLENNAN COS COM 571748102 70,574 34,071 93.34 13,093 77.98 0.0223
2025-11-14 2025-09-30 13F MARSH & MCLENNAN COS COM 571748102 36,503 -71,067 -66.07 7,356 -68.72 0.0128
2025-08-14 2025-06-30 13F MARSH & MCLENNAN COS COM 571748102 107,570 48,738 82.84 23,519 63.83 0.0448
2025-05-15 2025-03-31 13F MARSH & MCLENNAN COS COM 571748102 58,832 -21,787 -27.02 14,357 -16.16 0.0364
2025-02-14 2024-12-31 13F MARSH & MCLENNAN COS COM 571748102 80,619 -16,990 -17.41 17,124 -21.36 0.0451
2024-11-14 2024-09-30 13F MARSH & MCLENNAN COS COM 571748102 97,609 11,386 13.21 21,776 19.85 0.0567
2024-08-14 2024-06-30 13F MARSH & MCLENNAN COS COM 571748102 86,223 -41,864 -32.68 18,169 -31.14 0.0459
2024-05-15 2024-03-31 13F MARSH & MCLENNAN COS COM 571748102 128,087 -220,992 -63.31 26,383 -60.11 0.0665
2024-02-14 2023-12-31 13F MARSH & MCLENNAN COS COM 571748102 349,079 66,140 -39.08 0.1842
2023-11-14 2023-09-30 13F MARSH & MCLENNAN COS COM 571748102 108,575 107.74 0.3364
2023-08-14 2023-06-30 13F MARSH & MCLENNAN COS COM 571748102 277,888 52,265 -22.33 0.1612
2023-05-15 2023-03-31 13F MARSH & MCLENNAN COS COM 571748102 67,293 -46.31 0.2393
2023-02-14 2022-12-31 13F MARSH & MCLENNAN COS COM 571748102 757,373 165,601 27.98 125,330 41.86 0.4493
2022-11-14 2022-09-30 13F MARSH & MCLENNAN COS COM 571748102 591,772 88,345 -4.93 0.4100
2022-08-15 2022-06-30 13F MARSH & MCLENNAN COS COM 571748102 92,926 66.33 0.3938
2022-05-16 2022-03-31 13F MARSH & MCLENNAN COS COM 571748102 327,826 65,679 25.05 55,868 22.61 0.1943
2022-02-14 2021-12-31 13F MARSH & MCLENNAN COS COM 571748102 262,147 59,768 29.53 45,566 48.68 0.1465
2021-11-15 2021-09-30 13F MARSH & MCLENNAN COS COM 571748102 202,379 -32,330 -13.77 30,646 -7.19 0.1075
2021-08-16 2021-06-30 13F MARSH & MCLENNAN COS COM 571748102 234,709 115,261 96.49 33,019 126.95 0.1163
2021-05-17 2021-03-31 13F MARSH & MCLENNAN COS COM 571748102 119,448 31,634 36.02 14,549 41.61 0.0640
2021-02-16 2020-12-31 13F MARSH & MCLENNAN COS COM 571748102 87,814 -162,306 -64.89 10,274 -64.19 0.0451
2020-11-16 2020-09-30 13F MARSH & MCLENNAN COS COM 571748102 250,120 194,007 345.74 28,690 376.18 0.1129
2020-08-14 2020-06-30 13F MARSH & MCLENNAN COS COM 571748102 56,113 -16,068 -22.26 6,025 -3.46 0.0304
2020-05-15 2020-03-31 13F MARSH & MCLENNAN COS COM 571748102 72,181 -62,316 -46.33 6,241 -58.35 0.0404
2020-02-18 2019-12-31 13F MARSH & MCLENNAN COS COM 571748102 134,497 -25,264 -15.81 14,985 -6.24 0.0493
2019-11-14 2019-09-30 13F MARSH & MCLENNAN COS COM 571748102 159,761 -58,771 -26.89 15,983 -26.68 0.0594
2019-08-14 2019-06-30 13F MARSH & MCLENNAN COS COM 571748102 218,532 -29,049 -11.73 21,798 -6.23 0.0788
2019-05-15 2019-03-31 13F MARSH & MCLENNAN COS COM 571748102 247,581 82,409 49.89 23,247 76.47 0.0882
2019-02-14 2018-12-31 13F MARSH & MCLENNAN COS COM 571748102 165,172 27,431 19.91 13,173 15.62 0.0586
2018-11-14 2018-09-30 13F MARSH & MCLENNAN COS COM 571748102 137,741 25,815 23.06 11,393 24.17 0.0416
2018-08-14 2018-06-30 13F MARSH & MCLENNAN COS COM 571748102 111,926 4,081 3.78 9,175 3.01 0.0377
2018-05-15 2018-03-31 13F MARSH & MCLENNAN COS COM 571748102 107,845 107,845 8,907 0.0408
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.