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 *
Pettit CD Baer
   2. Issuer Name and Ticker or Trading Symbol
MSCI Inc. [MSCI] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Head of Client Coverage
(Last)
(First)
(Middle)
MSCI INC., ONE CHASE MANHATTAN PLAZA, 44TH FL		 3. Date of Earliest Transaction (Month/Day/Year)
02/02/2012
(Street)

NEW YORK, NY 10005		 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 02/02/2012   A   21,369 (1) A $ 0 187,084 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Pettit CD Baer
MSCI INC.
ONE CHASE MANHATTAN PLAZA, 44TH FL
NEW YORK, NY 10005		       Head of Client Coverage  

Signatures

 /s/ Cecilia Aza, attorney-in-fact   02/03/2012
**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) Includes (i) 14,246 restricted stock units (RSUs) vesting and converting to shares at a rate of 33 1/3% on the first, second and third anniversaries of the grant date and (ii) 7,123 performance stock units (PSUs) representing the minimum payout related to the grant of 14,246 PSUs subject to time- and performance-vesting. The PSUs time-vest at a rate of 50% on each of December 31, 2013 and 2014 and performance-vest (within a range of 50% and 150%) based on the achievement of certain cumulative performance metrics for the 2012 and 2013 fiscal years. The first tranche of PSUs generally converts to shares no earlier than January 1 and no later than March 15, 2014 and the second tranche of PSUs generally converts to shares no earlier than January 1 and no later than March 15, 2015. Each RSU and PSU represents a contingent right to receive one share of MSCI class A common stock.

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