MSCI Inc.
MX ˙ BMV ˙ US55354G1004
SecurityMX:MSCI / MSCI Inc.
InstitutionBlair William & Co/il
Latest Disclosed Ownership964 shares
Latest Disclosed Value $ 519,719
Blair William & Co/il reports 78.52% increase in ownership of MSCI / MSCI Inc.

On May 8, 2026 - Blair William & Co/il filed a 13F-HR form disclosing ownership of 964 shares of MSCI Inc. (MX:MSCI) valued at $519,719 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 540 shares of MSCI Inc.. This represents a change in shares of 78.52% 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)
2026-05-08 2026-03-31 13F MSCI COM 55354G100 964 424 78.52 520 67.96 0.0015
2026-02-17 2025-12-31 13F MSCI COM 55354G100 540 -89 -14.15 310 -13.20 0.0006
2025-11-12 2025-09-30 13F MSCI COM 55354G100 629 -563 -47.23 357 -48.18 0.0009
2025-07-24 2025-06-30 13F MSCI COM 55354G100 1,192 197 19.80 687 22.24 0.0019
2025-05-09 2025-03-31 13F MSCI COM 55354G100 995 -9 -0.90 562 -6.64 0.0017
2025-02-12 2024-12-31 13F MSCI COM 55354G100 1,004 -15 -1.47 602 1.35 0.0018
2024-11-12 2024-09-30 13F MSCI COM 55354G100 1,019 29 2.93 594 24.53 0.0017
2024-08-12 2024-06-30 13F MSCI COM 55354G100 990 -331 -25.06 477 -35.54 0.0015
2024-05-09 2024-03-31 13F MSCI COM 55354G100 1,321 -191 -12.63 741 -13.45 0.0023
2024-02-12 2023-12-31 13F MSCI COM 55354G100 1,512 -175 -10.37 855 -1.16 0.0029
2023-11-09 2023-09-30 13F MSCI COM 55354G100 1,687 15 0.90 866 10.33 0.0033
2023-08-11 2023-06-30 13F MSCI COM 55354G100 1,672 202 13.74 785 -4.62 0.0029
2023-05-12 2023-03-31 13F MSCI COM 55354G100 1,470 -240 -14.04 823 3.40 0.0033
2023-02-10 2022-12-31 13F MSCI COM 55354G100 1,710 0 0.00 796 10.26 0.0035
2022-11-09 2022-09-30 13F MSCI COM 55354G100 1,710 -14 -0.81 721 1.41 0.0033
2022-08-10 2022-06-30 13F MSCI COM 55354G100 1,724 -50 -2.82 711 -20.29 0.0032
2022-05-13 2022-03-31 13F MSCI COM 55354G100 1,774 -149 -7.75 892 -24.28 0.0031
2022-02-14 2021-12-31 13F MSCI COM 55354G100 1,923 531 38.15 1,178 39.08 0.0037
2021-11-12 2021-09-30 13F MSCI COM 55354G100 1,392 -90 -6.07 847 7.22 0.0029
2021-08-12 2021-06-30 13F MSCI COM 55354G100 1,482 285 23.81 790 57.37 0.0027
2021-05-13 2021-03-31 13F MSCI COM 55354G100 1,197 -205 -14.62 502 -19.81 0.0019
2021-02-09 2020-12-31 13F MSCI COM 55354G100 1,402 40 2.94 626 28.81 0.0023
2020-11-06 2020-09-30 13F MSCI COM 55354G100 1,362 -4 -0.29 486 6.58 0.0021
2020-08-12 2020-06-30 13F MSCI COM 55354G100 1,366 337 32.75 456 53.54 0.0022
2020-05-11 2020-03-31 13F MSCI COM 55354G100 1,029 -4 -0.39 297 11.24 0.0019
2020-02-13 2019-12-31 13F MSCI COM 55354G100 1,033 -1 -0.10 267 18.67 0.0014
2019-11-12 2019-09-30 13F MSCI COM 55354G100 1,034 64 6.60 225 -3.02 0.0013
2019-08-13 2019-06-30 13F MSCI COM 55354G100 970 -20,357 -95.45 232 -75.11 0.0013
2014-02-11 2013-12-31 13F MSCI COM 55354G100 21,327 -600 -2.74 932 5.55 0.0015
2013-11-12 2013-09-30 13F MSCI COM 55354G100 21,927 732 3.45 883 25.25 0.0016
2013-08-07 2013-06-30 13F MSCI COM 55354G100 21,195 21,195 705 0.0014
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.