Marsh & McLennan Companies, Inc.
US ˙ NYSE ˙ US5717481023
DETTE SYMBOL ER IKKE LÆNGERE AKTIVT

SecurityMMC / Marsh & McLennan Companies, Inc.
Institution1832 Asset Management L.P.
Latest Disclosed Ownership13,599 shares
Latest Disclosed Value $ 2,358,747
1832 Asset Management L.P. reports 52.94% decrease in ownership of MMC / Marsh & McLennan Companies, Inc.

On May 14, 2026 - 1832 Asset Management L.P. filed a 13F-HR form disclosing ownership of 13,599 shares of Marsh & McLennan Companies, Inc. (US:MMC) valued at $2,358,747 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 28,900 shares of Marsh & McLennan Companies, Inc.. This represents a change in shares of -52.94% during the quarter. The current value of the position is $2,484,537 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)
2026-05-14 2026-03-31 13F MARSH & MCLENNAN COS COM 571748102 13,599 -15,301 -52.94 2,359 -56.02 0.0022
2026-02-13 2025-12-31 13F MARSH & MCLENNAN COS COM 571748102 28,900 13,291 85.15 5,362 70.46 0.0041
2025-11-14 2025-09-30 13F MARSH & MCLENNAN COS COM 571748102 15,609 1,266 8.83 3,146 0.32 0.0025
2025-08-13 2025-06-30 13F MARSH & MCLENNAN COS COM 571748102 14,343 -8,596 -37.47 3,136 -43.99 0.0024
2025-05-14 2025-03-31 13F MARSH & MCLENNAN COS COM 571748102 22,939 -7,225 -23.95 5,598 -12.64 0.0051
2025-02-14 2024-12-31 13F MARSH & MCLENNAN COS COM 571748102 30,164 -129,428 -81.10 6,407 -82.00 0.0054
2024-11-13 2024-09-30 13F MARSH & MCLENNAN COS COM 571748102 159,592 10,242 6.86 35,603 13.13 0.0271
2024-08-13 2024-06-30 13F MARSH & MCLENNAN COS COM 571748102 149,350 -2,833 -1.86 31,471 0.40 0.0256
2024-05-14 2024-03-31 13F MARSH & MCLENNAN COS COM 571748102 152,183 214 0.14 31,347 8.87 0.0186
2024-02-13 2023-12-31 13F MARSH & MCLENNAN COS COM 571748102 151,969 1,864 1.24 28,794 0.80 0.0415
2023-11-13 2023-09-30 13F MARSH & MCLENNAN COS COM 571748102 150,105 124,895 495.42 28,565 502.49 0.0405
2023-08-14 2023-06-30 13F MARSH & MCLENNAN COS COM 571748102 25,210 -1,360 -5.12 4,741 7.14 0.0092
2023-05-12 2023-03-31 13F MARSH & MCLENNAN COS COM 571748102 26,570 -1,108,979 -97.66 4,425 -97.65 0.0091
2023-02-15 2022-12-31 13F MARSH & MCLENNAN COS COM 571748102 1,135,549 296,972 35.41 187,911 50.10 0.3863
2022-11-14 2022-09-30 13F MARSH & MCLENNAN COS COM 571748102 838,577 656,645 360.93 125,191 343.23 0.2667
2022-08-15 2022-06-30 13F MARSH & MCLENNAN COS COM 571748102 181,932 158,499 676.39 28,245 615.97 0.0569
2022-05-16 2022-03-31 13F MARSH & MCLENNAN COS COM 571748102 23,433 -170,667 -87.93 3,945 -88.41 0.0064
2022-02-15 2021-12-31 13F MARSH & MCLENNAN COS COM 571748102 194,100 140,341 261.06 34,027 307.12 0.0602
2021-11-15 2021-09-30 13F MARSH & MCLENNAN COS COM 571748102 53,759 6,939 14.82 8,358 26.87 0.0157
2021-08-20 2021-06-30 13F/A-1 MARSH & MCLENNAN COS COM 571748102 46,820 46,820 6,588 0.0127
2021-08-16 2021-06-30 13F MARSH & MCLENNAN COS COM 571748102 46,820 46,820 6,588 0.0128
2020-02-14 2019-12-31 13F MARSH & MCLENNAN COS COM 571748102 0 -2,667 -100.00 0 -100.00
2019-11-14 2019-09-30 13F MARSH & MCLENNAN COS COM 571748102 2,667 2,652 17,680.00 222 22,100.00 0.0007
2019-08-14 2019-06-30 13F MARSH & MCLENNAN COS COM 571748102 15 -8,198 -99.82 1 -99.84 0.0000
2019-05-15 2019-03-31 13F MARSH & MCLENNAN COS COM 571748102 8,213 -15,237 -64.98 631 -60.69 0.0021
2019-02-14 2018-12-31 13F MARSH & MCLENNAN COS COM 571748102 23,450 23,450 185.52 1,605 154.36 0.0063
2018-02-14 2017-12-31 13F MARSH & MCLENNAN COS COM 571748102 0 -3,026 -100.00 0 -100.00
2017-11-14 2017-09-30 13F MARSH & MCLENNAN COS COM 571748102 3,026 3,026 246 0.0009
2017-08-14 2017-06-30 13F MARSH & MCLENNAN COS COM 571748102 0 -3,649 -100.00 0 -100.00
2017-05-15 2017-03-31 13F MARSH & MCLENNAN COS COM 571748102 3,649 -20,352 -84.80 270 -82.88 0.0010
2017-02-14 2016-12-31 13F MARSH & MCLENNAN COS COM 571748102 24,001 0 0.00 1,577 -2.29 0.0059
2016-11-15 2016-09-30 13F MARSH & MCLENNAN COS COM 571748102 24,001 24,001 1,614 0.0061
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.