Markel Group Inc.
MX ˙ BMV ˙ US5705351048
SecurityMX:MKL / Markel Group Inc.
InstitutionGilbert & Cook, Inc.
Latest Disclosed Ownership421 shares
Latest Disclosed Value $ 805,823
Gilbert & Cook, Inc. reports 3.66% decrease in ownership of MKL / Markel Group Inc.

On May 5, 2026 - Gilbert & Cook, Inc. filed a 13F-HR form disclosing ownership of 421 shares of Markel Group Inc. (MX:MKL) valued at $805,823 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 7, 2026 disclosing 437 shares of Markel Group Inc.. This represents a change in shares of -3.66% during the quarter.

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 MARKEL GROUP COM 570535104 421 -16 -3.66 806 -14.27 0.1041
2026-01-07 2025-12-31 13F MARKEL GROUP COM 570535104 437 4 0.92 939 13.54 0.1181
2025-11-12 2025-09-30 13F MARKEL GROUP COM 570535104 433 17 4.09 828 -0.36 0.1063
2025-08-05 2025-06-30 13F MARKEL GROUP COM 570535104 416 -3 -0.72 831 6.00 0.1123
2025-05-06 2025-03-31 13F MARKEL GROUP COM 570535104 419 -9 -2.10 783 6.10 0.1136
2025-01-23 2024-12-31 13F MARKEL GROUP COM 570535104 428 7 1.66 739 11.82 0.1042
2024-11-07 2024-09-30 13F MARKEL GROUP COM 570535104 421 -19 -4.32 660 -4.76 0.0908
2024-08-01 2024-06-30 13F MARKEL GROUP COM 570535104 440 -69 -13.56 693 -10.47 0.1013
2024-05-02 2024-03-31 13F MARKEL GROUP COM 570535104 509 -20 -3.78 774 3.06 0.1055
2024-02-13 2023-12-31 13F/A-1 MARKEL GROUP COM 570535104 529 28 5.59 751 1.90 0.1063
2024-02-05 2023-12-31 13F MARKEL GROUP COM 570535104 529 28 751 0.1063
2023-11-02 2023-09-30 13F MARKEL GROUP COM 570535104 501 44 9.63 738 16.61 0.1164
2023-08-14 2023-06-30 13F MARKEL GROUP COM 570535104 457 17 3.86 632 12.46 0.1013
2023-05-05 2023-03-31 13F MARKEL COM 570535104 440 15 3.53 562 0.54 0.0970
2023-02-09 2022-12-31 13F MARKEL COM 570535104 425 14 3.41 560 12.70 0.1019
2022-11-03 2022-09-30 13F MARKEL COM 570535104 411 41 11.08 496 3.55 0.1103
2022-08-05 2022-06-30 13F MARKEL COM 570535104 370 25 7.25 479 -5.89 0.0861
2022-05-02 2022-03-31 13F MARKEL COM 570535104 345 14 4.23 509 24.75 0.0824
2022-01-19 2021-12-31 13F MARKEL COM 570535104 331 1 0.30 408 3.55 0.0656
2022-01-20 2021-09-30 13F/A-1 MARKEL COM 570535104 330 11 3.45 394 3.96 0.0705
2021-10-13 2021-09-30 13F MARKEL COM 570535104 310 -9 394 0.0705
2021-07-13 2021-06-30 13F MARKEL COM 570535104 319 10 3.24 379 7.67 0.0682
2021-04-14 2021-03-31 13F MARKEL COM 570535104 309 16 5.46 352 16.94 0.0692
2021-02-11 2020-12-31 13F MARKEL COM 570535104 293 -8 -2.66 301 2.73 0.0649
2020-11-13 2020-09-30 13F MARKEL COM 570535104 301 27 9.85 293 15.81 0.0695
2020-08-05 2020-06-30 13F MARKEL COM 570535104 274 8 3.01 253 2.43 0.0634
2020-05-05 2020-03-31 13F MARKEL COM 570535104 266 9 3.50 247 -15.99 0.0726
2020-02-03 2019-12-31 13F MARKEL COM 570535104 257 26 11.26 294 7.69 0.0720
2019-11-05 2019-09-30 13F MARKEL COM 570535104 231 18 8.45 273 17.67 0.0765
2019-08-05 2019-06-30 13F MARKEL COM 570535104 213 9 4.41 232 14.29 0.0678
2019-05-10 2019-03-31 13F MARKEL COM 570535104 204 204 203 0.0617
2019-02-12 2018-12-31 13F MARKEL COM 570535104 0 -185 -100.00 0 -100.00
2018-11-07 2018-09-30 13F MARKEL COM 570535104 185 185 220 0.0683
2017-10-31 2017-09-30 13F MARKEL COM 570535104 0 -309 -100.00 0 -100.00
2017-07-20 2017-06-30 13F MARKEL COM 570535104 309 309 301 0.1064
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.