MSCI Inc.
US ˙ NYSE ˙ US55354G1004

SecurityMSCI / MSCI Inc.
InstitutionMarkel Corp
Latest Disclosed Ownership142,850 shares
Latest Disclosed Value $ 76,997,578
Markel Corp ownership in MSCI / MSCI Inc.

On May 1, 2026 - Markel Corp filed a 13F-HR form disclosing ownership of 142,850 shares of MSCI Inc. (US:MSCI) valued at $76,997,578 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 142,850 shares of MSCI Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $87,649,903 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)
2026-05-01 2026-03-31 13F MSCI COM 55354G100 142,850 0 0.00 76,998 -6.05 0.5561
2026-02-06 2025-12-31 13F MSCI COM 55354G100 142,850 0 0.00 81,957 1.11 0.6533
2025-10-31 2025-09-30 13F MSCI COM 55354G100 142,850 0 0.00 81,055 -1.62 0.6579
2025-08-01 2025-06-30 13F MSCI COM 55354G100 142,850 0 0.00 82,387 1.99 0.6965
2025-05-02 2025-03-31 13F MSCI COM 55354G100 142,850 0 0.00 80,782 -5.75 0.7173
2025-02-07 2024-12-31 13F MSCI COM 55354G100 142,850 0 0.00 85,711 2.93 0.7556
2024-11-01 2024-09-30 13F MSCI COM 55354G100 142,850 0 0.00 83,272 21.00 0.7495
2024-08-02 2024-06-30 13F MSCI COM 55354G100 142,850 0 0.00 68,818 -14.04 0.6770
2024-05-03 2024-03-31 13F MSCI COM 55354G100 142,850 0 0.00 80,060 -0.92 0.7895
2024-02-02 2023-12-31 13F MSCI COM 55354G100 142,850 0 0.00 80,803 10.25 0.8784
2023-11-03 2023-09-30 13F MSCI COM 55354G100 142,850 0 0.00 73,293 9.33 0.8848
2023-08-04 2023-06-30 13F MSCI COM 55354G100 142,850 0 0.00 67,038 -16.15 0.7982
2023-04-28 2023-03-31 13F MSCI COM 55354G100 142,850 0 0.00 79,952 20.32 1.0172
2023-02-03 2022-12-31 13F MSCI COM 55354G100 142,850 400 0.28 66,450 10.59 0.8909
2022-11-04 2022-09-30 13F MSCI COM 55354G100 142,450 500 0.35 60,085 2.70 0.8869
2022-08-05 2022-06-30 13F MSCI COM 55354G100 141,950 250 0.18 58,504 -17.90 0.8364
2022-04-29 2022-03-31 13F MSCI COM 55354G100 141,700 4,700 3.43 71,258 -15.11 0.7910
2022-02-04 2021-12-31 13F MSCI COM 55354G100 137,000 0 0.00 83,939 0.72 0.9658
2021-11-05 2021-09-30 13F MSCI COM 55354G100 137,000 0 0.00 83,342 14.12 1.0536
2021-08-06 2021-06-30 13F MSCI COM 55354G100 137,000 0 0.00 73,032 27.14 0.9245
2021-04-30 2021-03-31 13F MSCI COM 55354G100 137,000 0 0.00 57,441 -6.10 0.7950
2021-02-05 2020-12-31 13F MSCI COM 55354G100 137,000 0 0.00 61,175 25.16 0.9113
2020-10-30 2020-09-30 13F MSCI COM 55354G100 137,000 0 0.00 48,879 6.88 0.8289
2020-08-03 2020-06-30 13F MSCI COM 55354G100 137,000 0 0.00 45,734 15.52 0.8520
2020-05-01 2020-03-31 13F MSCI COM 55354G100 137,000 0 0.00 39,588 11.93 0.7446
2020-02-07 2019-12-31 13F MSCI COM 55354G100 137,000 0 0.00 35,370 18.56 0.4911
2019-11-01 2019-09-30 13F MSCI COM 55354G100 137,000 0 0.00 29,832 -8.81 0.4507
2019-08-02 2019-06-30 13F MSCI COM 55354G100 137,000 0 0.00 32,714 20.09 0.5030
2019-05-03 2019-03-31 13F MSCI COM 55354G100 137,000 0 0.00 27,241 34.88 0.4565
2019-02-08 2018-12-31 13F MSCI COM 55354G100 137,000 0 0.00 20,197 -16.90 0.3859
2018-11-02 2018-09-30 13F MSCI COM 55354G100 137,000 0 0.00 24,305 7.24 0.4099
2018-08-03 2018-06-30 13F MSCI COM 55354G100 137,000 0 0.00 22,664 10.68 0.4160
2018-04-27 2018-03-31 13F MSCI COM 55354G100 137,000 0 0.00 20,477 18.12 0.3893
2018-02-09 2017-12-31 13F MSCI COM 55354G100 137,000 0 0.00 17,336 8.25 0.3273
2017-10-27 2017-09-30 13F MSCI COM 55354G100 137,000 0 0.00 16,015 13.50 0.3189
2017-07-28 2017-06-30 13F MSCI COM 55354G100 137,000 0 0.00 14,110 5.97 0.3009
2017-04-28 2017-03-31 13F MSCI COM 55354G100 137,000 0 0.00 13,315 23.37 0.3000
2017-02-10 2016-12-31 13F MSCI COM 55354G100 137,000 0 0.00 10,793 -6.15 0.2601
2016-11-04 2016-09-30 13F MSCI COM 55354G100 137,000 0 0.00 11,500 8.85 0.2964
2016-08-05 2016-06-30 13F MSCI COM 55354G100 137,000 0 0.00 10,565 4.10 0.2784
2016-05-06 2016-03-31 13F MSCI COM 55354G100 137,000 0 0.00 10,149 2.70 0.2724
2016-02-16 2015-12-31 13F MSCI COM 55354G100 137,000 0 0.00 9,882 21.31 0.2675
2015-11-09 2015-09-30 13F MSCI COM 55354G100 137,000 12,000 9.60 8,146 5.87 0.2146
2015-08-14 2015-06-30 13F MSCI COM 55354G100 125,000 11,000 9.65 7,694 10.09 0.1921
2015-05-07 2015-03-31 13F MSCI COM 55354G100 114,000 13,000 12.87 6,989 45.88 0.1767
2015-02-09 2014-12-31 13F MSCI COM 55354G100 101,000 15,000 17.44 4,791 18.47 0.1264
2014-11-12 2014-09-30 13F MSCI COM 55354G100 86,000 28,000 48.28 4,044 52.09 0.1140
2014-08-08 2014-06-30 13F MSCI COM 55354G100 58,000 25,000 75.76 2,659 87.25 0.0758
2014-05-13 2014-03-31 13F MSCI COM 55354G100 33,000 28,000 560.00 1,420 548.40 0.0436
2014-02-11 2013-12-31 13F MSCI COM 55354G100 5,000 5,000 219 0.0069
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.