Vanguard reports 5.38M MSCI holdings (NYSE: MSCI) in Schedule 13G

Rhea-AI Filing Summary

MSCI Inc: Vanguard Capital Management reports beneficial ownership of 5,376,072 shares of common stock, representing 7.35% of the class.

The filing states Vanguard Capital Management has sole voting power over 722,996 shares and sole dispositive power over 5,376,072 shares. The Schedule 13G was signed by Ashley Grim on 04/30/2026.

Insights

Institutional Ownership Analyst

Large passive stake reported by Vanguard Capital Management in MSCI.

Vanguard Capital Management is recorded as beneficial owner of 5,376,072 shares of MSCI, equal to 7.35% of the class. The filing attributes sole voting power for 722,996 shares and sole dispositive power for the full 5,376,072 position.

Because the statement references multiple Vanguard affiliates and fund holdings, the stake likely represents aggregated client and fund positions. Subsequent filings may clarify changes in percent ownership or voting arrangements.

Regulatory Compliance Specialist

Schedule 13G disclosure follows passive/beneficial ownership disclosure conventions.

The filing lists the reporting person as Vanguard Capital Management and cites SEC Release No. 34-39538 to explain aggregation across affiliates. The form notes rights to dividends/proceeds by funds and managed accounts.

For compliance, watch for any amendment or Schedule 13D that would indicate an active intent to influence MSCI; timing and intent are not stated in this excerpt.

Key Figures

Beneficial ownership: 5,376,072 shares Percent of class: 7.35% Sole voting power: 722,996 shares +1 more

4 metrics

Beneficial ownership 5,376,072 shares reported on Schedule 13G

Percent of class 7.35% percent of MSCI common stock

Sole voting power 722,996 shares shares with sole voting power

Signature date 04/30/2026 Schedule 13G signed by Ashley Grim

Key Terms

beneficially owned, sole dispositive power, Schedule 13G, Investment Company Act of 1940

4 terms

beneficially owned regulatory

"this reflects the securities beneficially owned, or deemed to be beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 5376072"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

Schedule 13G regulatory

"Item 1. (a) Name of issuer: MSCI Inc"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

Investment Company Act of 1940 regulatory

"investment company registered under the Investment Company Act of 1940"

A U.S. federal law that sets the rulebook for pooled investment vehicles such as mutual funds, exchange-traded funds and similar money managers, requiring them to register with regulators, disclose holdings and fees, limit conflicts of interest, and follow governance standards. It matters to investors because these protections and transparency rules act like a referee and scoreboard, helping people compare funds, trust that managers follow fair practices, and spot hidden costs or risks.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

MSCI Inc

(Name of Issuer)

Common Stock

(Title of Class of Securities)

55354G100

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 55354G100

1

Names of Reporting Persons

Vanguard Capital Management

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

PENNSYLVANIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 722,996.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 5,376,072.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,376,072.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.35 %

12

Type of Reporting Person (See Instructions)

IA

Comment for Type of Reporting Person: In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by Vanguard Capital Management LLC and the following affiliates of Vanguard Capital Management LLC or business divisions of such affiliates: Vanguard Asset Management Limited, Vanguard Fiduciary Trust Company, Vanguard Global Advisers, LLC and Vanguard Investments Australia Ltd. This Schedule 13G includes securities held by Vanguard funds, or sleeves thereof, over which Vanguard Capital Management LLC exercises dispositive power, in addition to securities held by clients over which the affiliates or business divisions of such affiliates indicated above exercise dispositive and/or voting power. This Schedule 13G does not include securities, if any, beneficially owned by other subsidiaries or affiliates of Vanguard Capital Management LLC, or business divisions of such subsidiaries, whose ownership of securities is disaggregated from that of the reporting business unit in accordance with such release.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: MSCI Inc
(b)	Address of issuer's principal executive offices: 7 World Trade Center, 250 Greenwich Street, 49th Fl, New York, NY, 10007
Item 2.
(a)	Name of person filing: Vanguard Capital Management
(b)	Address or principal business office or, if none, residence: 100 Vanguard Blvd,, Malvern, PA, 19355
(c)	Citizenship: PA
(d)	Title of class of securities: Common Stock
(e)	CUSIP Number(s): 55354G100
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 5376072
(b)	Percent of class: 7.35 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 722996
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 5376072
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. Vanguard Capital Management, including investment companies registered under the Investment Company Act of 1940 and other managed accounts, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported herein.No one other person's interest in the securities reported herein is more than 5%.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Vanguard Capital Management

Signature:	Ashley Grim
Name/Title:	Head of Global Fund Administration
Date:	04/30/2026

FAQ

How many MSCI (MSCI) shares does Vanguard Capital Management report owning?

Vanguard Capital Management reports owning 5,376,072 shares of MSCI common stock. This equals 7.35% of the class and includes positions managed across Vanguard affiliates and funds under the reporting unit.

What voting and disposition powers does Vanguard report for MSCI shares?

The filing shows sole voting power for 722,996 shares and sole dispositive power for 5,376,072 shares. Shared voting and dispositive powers are reported as 0 in the excerpt.

When was the Schedule 13G for Vanguard's MSCI holdings signed?

The Schedule 13G was signed by Ashley Grim on 04/30/2026. The form lists the as-filed beneficial ownership and voting/dispositive power figures at that signature date.

Does the filing identify other persons with more than 5% ownership of MSCI on Vanguard's behalf?

The filing states no other single person's interest reported here exceeds 5%. It notes the holdings include various Vanguard-managed funds and accounts that may have rights to dividends or sale proceeds.

What does the filing say about aggregation across Vanguard affiliates?

The filing explains aggregation under SEC Release No. 34-39538, stating the reported figures include securities held by Vanguard funds and affiliates over which the reporting unit exercises dispositive power.