Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
CAPITAL GROUP INTERNATIONAL INC
   2. Issuer Name and Ticker or Trading Symbol
MSCI Inc. [MXB] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
CAPITAL GROUP INTERNATIONAL, INC., 333 S. HOPE STREET		 3. Date of Earliest Transaction (Month/Day/Year)
04/25/2008
(Street)

LOS ANGELES, CA 90071-1406		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Class A Common Stock 04/25/2008   C   2,861,235.21 A $ 0 (1) 2,861,235.21 D  
Class A Common Stock 04/25/2008   G   2,861,235.21 D $ 0 0.21 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Class B Common Stock (1) (2) 04/25/2008   C     2,861,235.21   (1)(2)   (1)(2) Class A Common Stock 2,861,235.21 $ 0 (1) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
CAPITAL GROUP INTERNATIONAL INC
CAPITAL GROUP INTERNATIONAL, INC.
333 S. HOPE STREET
LOS ANGELES, CA 90071-1406		     X    

Signatures

 Peter C. Kelly, Secretary   04/30/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The Class B Common Stock is convertible at any time at the holder's option on a one-for-one basis into Class A Common Stock and has no expiration date. The Class B Common Stock is automatically converted into Class A Common Stock upon any sale by the reporting person to any party other than Capital Group International, Inc., or its subsidiaries or affiliates. Class B Common Stock generally has identical rights as Class A Common Stock, except that holders of Class A Common Stock are entitled to one vote per share while holders of Class B Common Stock are entitled to five votes per share on matters to be voted on by shareholders with certain exceptions.
(2) Immediately after the pricing of the Issuer's initial public offering ("IPO") of its class A common stock, par value $.01 per share (the "Class A Common Stock"), the Issuer amended its certificate of incorporation. The amendment and restatement, among other things, (i) created two new classes of stock, the Class A Common Stock and the class B common stock, par value $.01 per share (the "Class B Common Stock"), which generally is convertible into Class A Common Stock on a one-for-one basis and (ii) reclassified each of the Issuer's then-outstanding shares of common stock, par value $1.00 per share (the "Common Stock") into 2,861.235208 shares of Class B Common Stock (the "Reclassification").

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