Marsh & McLennan Companies, Inc.
DE ˙ DB ˙ US5717481023
135,70 € ↓ -3,10 (-2,23%)
2026-06-03
AKTIENPREIS
SecurityDE:MSN / Marsh & McLennan Companies, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership15,674 shares
Latest Disclosed Value $ 2,718,655
Summit Trail Advisors, Llc reports 48.91% increase in ownership of MSN / Marsh & McLennan Companies, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 15,674 shares of Marsh & McLennan Companies, Inc. (DE:MSN) valued at $2,345,614 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 10,526 shares of Marsh & McLennan Companies, Inc.. This represents a change in shares of 48.91% during the quarter. The current value of the position is $2,126,962 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)
2026-05-12 2026-03-31 13F MARSH & MCLENNAN COS COM 571748102 15,674 5,148 48.91 2,719 39.24 0.0389
2026-02-17 2025-12-31 13F MARSH & MCLENNAN COS COM 571748102 10,526 -2,945 -21.86 1,953 -28.08 0.0338
2025-11-14 2025-09-30 13F MARSH & MCLENNAN COS COM 571748102 13,471 2,987 28.49 2,715 18.41 0.0375
2025-08-14 2025-06-30 13F MARSH & MCLENNAN COS COM 571748102 10,484 10,484 2,292 0.0393
2025-01-29 2024-12-31 13F MARSH & MCLENNAN COS COM 571748102 0 -7,035 -100.00 0 -100.00
2024-11-12 2024-09-30 13F MARSH & MCLENNAN COS COM 571748102 7,035 1,531 27.82 1,569 35.38 0.0389
2024-08-13 2024-06-30 13F Marsh & Mclennan Cos Inc Com COM 571748102 5,504 1,030 23.02 1,160 25.84 0.0305
2024-04-23 2024-03-31 13F MARSH & MCLENNAN COS COM 571748102 4,474 1,094 32.37 922 43.91 0.0245
2024-02-06 2023-12-31 13F MARSH & MCLENNAN COS COM 571748102 3,380 -473 -12.28 640 -12.69 0.0212
2023-10-30 2023-09-30 13F MARSH & MCLENNAN COS COM 571748102 3,853 298 8.38 733 9.73 0.0270
2023-07-25 2023-06-30 13F MARSH & MCLENNAN COS COM 571748102 3,555 1,596 81.47 669 104.91 0.0252
2023-05-04 2023-03-31 13F MARSH & MCLENNAN COS COM 571748102 1,959 655 50.23 326 51.63 0.0131
2023-02-07 2022-12-31 13F Marsh & Mclennan Cos Inc Com COM 571748102 1,304 1,304 216 0.0096
2018-08-10 2018-06-30 13F MARSH & MCLENNAN COS INC COM EQUITY 571748102 0 -4,835 -100.00 0 -100.00
2018-05-22 2018-03-31 13F/A-1 MARSH & MCLENNAN COS INC COM EQUITY 571748102 4,835 540 12.57 246 -30.70 0.0418
2018-05-21 2018-03-31 13F MARSH & MCLENNAN COS INC COM EQUITY 571748102 245,910 241,615 246
2018-02-14 2017-12-31 13F MARSH & MCLENNAN COS EQUITY 571748102 4,295 4,295 355 0.0448
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.