Marsh & McLennan Companies, Inc.
DE ˙ DB ˙ US5717481023
138,20 € ↑2,50 (1,84%)
2026-06-04
DEL PRIS
SecurityDE:MSN / Marsh & McLennan Companies, Inc.
InstitutionVectors Research Management, LLC
Latest Disclosed Ownership1,248 shares
Latest Disclosed Value $ 216,526
Vectors Research Management, LLC reports 88.56% decrease in ownership of MSN / Marsh & McLennan Companies, Inc.

On May 5, 2026 - Vectors Research Management, LLC filed a 13F-HR form disclosing ownership of 1,248 shares of Marsh & McLennan Companies, Inc. (DE:MSN) valued at $186,763 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 10,908 shares of Marsh & McLennan Companies, Inc.. This represents a change in shares of -88.56% during the quarter. The current value of the position is $172,474 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)
2026-05-05 2026-03-31 13F MARSH & MCLENNAN COS COM 571748102 1,248 -9,660 -88.56 217 -89.32 0.0632
2026-02-03 2025-12-31 13F MARSH & MCLENNAN COS COM 571748102 10,908 -2,363 -17.81 2,024 -24.35 0.6176
2025-10-28 2025-09-30 13F MARSH & MCLENNAN COS COM 571748102 13,271 163 1.24 2,674 -6.67 0.8428
2025-07-29 2025-06-30 13F MARSH & MCLENNAN COS COM 571748102 13,108 -294 -2.19 2,866 -12.39 0.9823
2025-04-23 2025-03-31 13F MARSH & MCLENNAN COS COM 571748102 13,402 3,904 41.10 3,271 62.12 1.1437
2025-02-13 2024-12-31 13F MARSH & MCLENNAN COS COM 571748102 9,498 -256 -2.62 2,018 100,750.00 0.6873
2024-11-06 2024-09-30 13F MARSH & MCLENNAN COS COM 571748102 9,754 21 0.22 2 0.00 0.6586
2024-08-09 2024-06-30 13F MARSH & MCLENNAN COS COM 571748102 9,733 -110 -1.12 2 0.00 0.6297
2024-05-15 2024-03-31 13F MARSH & MCLENNAN COS COM 571748102 9,843 -530 -5.11 2 100.00 0.5728
2024-02-12 2023-12-31 13F MARSH & MCLENNAN COS COM 571748102 10,373 115 1.12 2 0.00 0.5538
2023-11-09 2023-09-30 13F MARSH & MCLENNAN COS COM 571748102 10,258 -434 -4.06 2 -50.00 0.5931
2023-08-08 2023-06-30 13F MARSH & MCLENNAN COS COM 571748102 10,692 -419 -3.77 2 100.00 0.5717
2023-05-04 2023-03-31 13F MARSH & MCLENNAN COS COM 571748102 11,111 21 0.19 2 0.00 0.4772
2023-02-08 2022-12-31 13F Marsh & McLennan COM 571748102 11,090 -8,284 -42.76 2 -99.97 0.4752
2022-11-08 2022-09-30 13F Marsh & McLennan COM 571748102 19,374 -3,964 -16.99 2,892 -20.18 0.8178
2022-08-12 2022-06-30 13F Marsh & McLennan COM 571748102 23,338 -797 -3.30 3,623 -11.91 0.9188
2022-05-16 2022-03-31 13F Marsh & McLennan COM 571748102 24,135 -740 -2.97 4,113 -4.88 0.9021
2022-02-15 2021-12-31 13F Marsh & McLennan COM 571748102 24,875 161 0.65 4,324 15.55 0.9125
2021-11-12 2021-09-30 13F Marsh & McLennan COM 571748102 24,714 873 3.66 3,742 11.57 0.8818
2021-08-09 2021-06-30 13F MARSH & MCLENNAN COS COM 571748102 23,841 665 2.87 3,354 18.81 0.8551
2021-05-18 2021-03-31 13F Marsh & McLennan COM 571748102 23,176 -248 -1.06 2,823 2.99 0.7777
2021-02-09 2020-12-31 13F MARSH & MCLENNAN COS COM 571748102 23,424 3,215 15.91 2,741 17.49 0.8421
2020-11-16 2020-09-30 13F MARSH & MCLENNAN COS COM 571748102 20,209 289 1.45 2,333 9.07 0.8545
2020-08-13 2020-06-30 13F MARSH & MCLENNAN COS COM 571748102 19,920 -9 -0.05 2,139 24.14 0.8437
2020-05-14 2020-03-31 13F MARSH & MCLENNAN COS COM 571748102 19,929 3,875 24.14 1,723 -3.69 0.8189
2020-02-14 2019-12-31 13F MARSH & MCLENNAN COS COM 571748102 16,054 2,356 17.20 1,789 30.58 0.7196
2019-11-15 2019-09-30 13F MARSH & MCLENNAN COS COM 571748102 13,698 214 1.59 1,370 1.86 0.6730
2019-08-12 2019-06-30 13F MARSH & MCLENNAN COS COM 571748102 13,484 1,755 14.96 1,345 22.16 0.7267
2019-07-15 2019-03-31 13F MARSH & MCLENNAN COS COM 571748102 11,729 369 3.25 1,101 21.52 0.6244
2019-02-12 2018-12-31 13F MARSH & MCLENNAN ORD COM 571748102 11,360 1,183 11.62 906 8.24 0.4321
2018-11-14 2018-09-30 13F MARSH & MCLENNAN ORD COM 571748102 10,177 10,177 837 0.5150
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.