MSCI Inc.
MX ˙ BMV ˙ US55354G1004
SecurityMX:MSCI / MSCI Inc.
InstitutionGAMMA Investing LLC
Latest Disclosed Ownership1,071 shares
Latest Disclosed Value $ 577,280
GAMMA Investing LLC reports 10.75% decrease in ownership of MSCI / MSCI Inc.

On April 6, 2026 - GAMMA Investing LLC filed a 13F-HR form disclosing ownership of 1,071 shares of MSCI Inc. (MX:MSCI) valued at $577,280 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 1,200 shares of MSCI Inc.. This represents a change in shares of -10.75% 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)
2026-04-06 2026-03-31 13F MSCI INC COM Common Stock 55354G100 1,071 -129 -10.75 577 -16.13 0.0270
2026-01-05 2025-12-31 13F MSCI INC COM Common Stock 55354G100 1,200 -155 -11.44 688 -10.42 0.0346
2025-10-02 2025-09-30 13F MSCI INC COM Common Stock 55354G100 1,355 329 32.07 769 29.95 0.0424
2025-07-14 2025-06-30 13F MSCI INC COM Common Stock 55354G100 1,026 132 14.77 592 17.03 0.0374
2025-04-15 2025-03-31 13F/A-1 MSCI INC COM Common Stock 55354G100 894 69 8.36 506 2.02 0.0379
2025-04-07 2025-03-31 13F MSCI INC COM Common Stock 55354G100 505,557 504,732 1 0.0048
2025-01-03 2024-12-31 13F MSCI INC COM Common Stock 55354G100 825 410 98.80 495 105.39 0.0422
2024-10-04 2024-09-30 13F MSCI INC COM Common Stock 55354G100 415 136 242 0.0240
2024-10-07 2024-09-30 13F MSCI INC COM Common Stock 55354G100 415 136 48.75 242 79.85 0.0240
2024-07-02 2024-06-30 13F MSCI INC COM Common Stock 55354G100 279 59 26.82 134 8.94 0.0183
2024-04-05 2024-03-31 13F MSCI INC COM Common Stock 55354G100 220 34 18.28 123 10.81 0.0251
2024-02-01 2023-12-31 13F MSCI INC COM Common Stock 55354G100 186 186 111 0.0302
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.