Marsh & McLennan Companies, Inc.
US ˙ NYSE ˙ US5717481023

SecurityMRSH / Marsh & McLennan Companies, Inc.
InstitutionCommerce Bank
Latest Disclosed Ownership48,225 shares
Latest Disclosed Value $ 8,364,626
Commerce Bank reports 100.26% increase in ownership of MRSH / Marsh & McLennan Companies, Inc.

On May 11, 2026 - Commerce Bank filed a 13F-HR form disclosing ownership of 48,225 shares of Marsh & McLennan Companies, Inc. (US:MRSH) valued at $8,364,626 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 24,081 shares of Marsh & McLennan Companies, Inc.. This represents a change in shares of 100.26% during the quarter. The current value of the position is $7,586,757 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)
2026-05-11 2026-03-31 13F MARSH & MCLENNAN COS COM 571748102 48,225 24,144 100.26 8,365 87.24 0.0172
2026-02-13 2025-12-31 13F MARSH & MCLENNAN COS COM 571748102 24,081 235 0.99 4,468 -7.03 0.0247
2025-11-12 2025-09-30 13F MARSH & MCLENNAN COS COM 571748102 23,846 -133 -0.55 4,806 -8.34 0.0267
2025-08-07 2025-06-30 13F MARSH & MCLENNAN COS COM 571748102 23,979 -68 -0.28 5,243 -10.67 0.0309
2025-05-08 2025-03-31 13F MARSH & MCLENNAN COS COM 571748102 24,047 -1,429 -5.61 5,868 8.45 0.0375
2025-02-13 2024-12-31 13F MARSH & MCLENNAN COS COM 571748102 25,476 -405 -1.56 5,411 -6.27 0.0334
2024-11-08 2024-09-30 13F MARSH & MCLENNAN COS COM 571748102 25,881 -62 -0.24 5,774 5.62 0.0354
2024-08-12 2024-06-30 13F MARSH & MCLENNAN COS COM 571748102 25,943 37 0.14 5,467 2.44 0.0354
2024-05-03 2024-03-31 13F MARSH & MCLENNAN COS COM 571748102 25,906 445 1.75 5,336 10.61 0.0353
2024-02-09 2023-12-31 13F MARSH & MCLENNAN COS COM 571748102 25,461 169 0.67 4,824 0.23 0.0343
2023-11-14 2023-09-30 13F MARSH & MCLENNAN COS COM 571748102 25,292 -323 -1.26 4,813 -0.08 0.0379
2023-08-08 2023-06-30 13F MARSH & MCLENNAN COS COM 571748102 25,615 -4 -0.02 4,818 12.92 0.0360
2023-05-04 2023-03-31 13F MARSH & MCLENNAN COS COM 571748102 25,619 157 0.62 4,267 1.26 0.0334
2023-02-10 2022-12-31 13F MARSH & MCLENNAN COS COM 571748102 25,462 -62 -0.24 4,213 10.58 0.0342
2022-11-04 2022-09-30 13F MARSH & MCLENNAN COS COM 571748102 25,524 -1,043 -3.93 3,810 -7.61 0.0331
2022-08-12 2022-06-30 13F MARSH & MCLENNAN COS COM 571748102 26,567 2,854 12.04 4,124 2.03 0.0336
2022-05-09 2022-03-31 13F MARSH & MCLENNAN COS COM 571748102 23,713 -809 -3.30 4,042 -5.16 0.0277
2022-02-14 2021-12-31 13F MARSH & MCLENNAN COS COM 571748102 24,522 873 3.69 4,262 19.02 0.0279
2021-11-09 2021-09-30 13F MARSH & MCLENNAN COS COM 571748102 23,649 3,832 19.34 3,581 28.44 0.0253
2021-08-09 2021-06-30 13F MARSH & MCLENNAN COS COM 571748102 19,817 -23 -0.12 2,788 15.35 0.0198
2021-05-05 2021-03-31 13F MARSH & MCLENNAN COS COM 571748102 19,840 -64 -0.32 2,417 3.78 0.0184
2021-02-09 2020-12-31 13F MARSH & MCLENNAN COS COM 571748102 19,904 -1,357 -6.38 2,329 -4.51 0.0188
2020-11-06 2020-09-30 13F MARSH & MCLENNAN COS COM 571748102 21,261 -871 -3.94 2,439 2.61 0.0221
2020-08-07 2020-06-30 13F MARSH & MCLENNAN COS COM 571748102 22,132 7,785 54.26 2,377 91.69 0.0232
2020-05-08 2020-03-31 13F MARSH & MCLENNAN COS COM 571748102 14,347 1,370 10.56 1,240 -14.25 0.0150
2020-02-14 2019-12-31 13F MARSH & MCLENNAN COS COM 571748102 12,977 2,926 29.11 1,446 43.74 0.0138
2019-11-12 2019-09-30 13F MARSH & MCLENNAN COS COM 571748102 10,051 251 2.56 1,006 2.97 0.0103
2019-08-07 2019-06-30 13F MARSH & MCLENNAN COS COM 571748102 9,800 1,023 11.66 977 18.57 0.0110
2019-05-08 2019-03-31 13F MARSH & MCLENNAN COS COM 571748102 8,777 180 2.09 824 20.12 0.0098
2019-02-11 2018-12-31 13F MARSH & MCLENNAN COS COM 571748102 8,597 886 11.49 686 7.52 0.0087
2018-11-02 2018-09-30 13F MARSH & MCLENNAN COS COM 571748102 7,711 -336 -4.18 638 -3.33 0.0076
2018-08-08 2018-06-30 13F MARSH & MCLENNAN COS COM 571748102 8,047 1,037 14.79 660 13.99 0.0084
2018-05-03 2018-03-31 13F MARSH & MCLENNAN COS COM 571748102 7,010 98 1.42 579 2.84 0.0076
2018-02-12 2017-12-31 13F MARSH & MCLENNAN COS COM 571748102 6,912 127 1.87 563 -1.05 0.0073
2017-11-07 2017-09-30 13F/A-1 MARSH & MCLENNAN COS COM 571748102 6,785 329 5.10 569 13.12 0.0077
2017-11-07 2017-09-30 13F MARSH & MCLENNAN COS COM 571748102 6,456 503
2017-08-08 2017-06-30 13F MARSH & MCLENNAN COS COM 571748102 6,456 527 8.89 503 14.84 0.0071
2017-05-05 2017-03-31 13F MARSH & MCLENNAN COS COM 571748102 5,929 976 19.71 438 31.14 0.0062
2017-02-08 2016-12-31 13F MARSH & MCLENNAN COS COM 571748102 4,953 -41 -0.82 334 -0.60 0.0050
2016-11-03 2016-09-30 13F MARSH & MCLENNAN COS COM 571748102 4,994 -338 -6.34 336 -7.95 0.0052
2016-08-09 2016-06-30 13F MARSH & MCLENNAN COS COM 571748102 5,332 -97 -1.79 365 10.61 0.0058
2016-04-27 2016-03-31 13F MARSH & MCLENNAN COS COM 571748102 5,429 -271 -4.75 330 4.43 0.0055
2016-02-12 2015-12-31 13F MARSH & MCLENNAN COS COM 571748102 5,700 738 14.87 316 22.01 0.0053
2015-11-10 2015-09-30 13F MARSH & MCLENNAN COS COM 571748102 4,962 110 2.27 259 -5.82 0.0045
2015-08-03 2015-06-30 13F MARSH & MCLENNAN COS COM 571748102 4,852 -58 -1.18 275 0.00 0.0043
2015-05-06 2015-03-31 13F MARSH & MCLENNAN COS COM 571748102 4,910 -455 -8.48 275 -10.42 0.0043
2015-02-11 2014-12-31 13F MARSH & MCLENNAN COS COM 571748102 5,365 622 13.11 307 23.79 0.0049
2014-11-06 2014-09-30 13F MARSH & MCLENNAN COS COM 571748102 4,743 4,743 248 0.0041
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.