Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Warburg Pincus Private Equity X, L.P.
2. Date of Event Requiring Statement (Month/Day/Year)
01/30/2008
3. Issuer Name and Ticker or Trading Symbol
MBIA INC [MBI]
(Last)
(First)
(Middle)
466 LEXINGTON AVENUE, 
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10017
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $1.00 per share (?Common Stock?) 9,951,760
I (1) (2) (3)
By voting trust (4)
Common Stock 6,177,272
D (1) (2) (3)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Common Stock issuable upon exercise of warrants 01/30/2008 01/30/2015 Common Stock 8,698,920 $ (5) D (1) (2) (3)  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Warburg Pincus Private Equity X, L.P.
466 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
Warburg Pincus X, L.P.
C/O WARBURG PINCUS LLC
466 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
Warburg Pincus X LLC
C/O WARBURG PINCUS LLC
466 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
Warburg Pincus Partners LLC
466 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
WARBURG PINCUS & CO
466 LEXINGTON AVENUE
NEW YORK
NY, NY 100173147
    X    
WARBURG PINCUS LLC
466 LEXINGTON AVENUE
NEW YORK, NY 10017
    X    
KAYE CHARLES R
C/O WARBURG PINCUS LLC
466 LEXINGTON AVE
NEW YORK, NY 10017
    X    
LANDY JOSEPH
C/O WARBURG PINCUS LLC
466 LEXINGTON AVE
NEW YORK, NY 10017
    X    

Signatures

See signatures of Reporting Persons attached as Exhibit 99.1 02/01/2008
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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) Warburg Pincus X L.P., a Delaware limited partnership ("WP X LP"), and the general partner of Warburg Pincus Private Equity X, L.P. and an affiliated limited partnership (together, "WP X"); Warburg Pincus X LLC, a Delaware limited liability company ("WP X LLC") and the general partner of WP X LP; Warburg Pincus Partners, LLC, a New York limited liability company ("WP Partners") and the sole member of WP X LLC; Warburg Pincus & Co., a New York general partnership ("WP") and the managing member of WP Partners; Warburg Pincus LLC, a New York limited liability company ("WP LLC") that manages WP X; and Messrs. Charles R. Kaye and Joseph P. Landy, each a managing general partner of WP and managing member and co-president of WP LLC may be deemed to be the beneficial owner of the shares of Common Stock held by WP X and the warrants exercisable for shares of Common Stock held by WP X.
(2) Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.
(3) Pursuant to Rule 16a-1(a)(4) of the Securities Exchange Act of 1934, as amended, each of the Reporting Persons, other than WP X, herein states that this filing shall not be deemed an admission that he or it is the beneficial owner of any of the shares of Common Stock or any of the warrants exercisable for Common Stock covered by this Statement. Each of WP X LP, WP X LLC, WP Partners, WP, WP LLC, and Messrs. Kaye and Landy disclaims beneficial ownership of the Common Stock and the warrants exercisable for Common Stock, except to the extent of its or his pecuniary interest in such shares of Common Stock or such warrants exercisable for Common Stock.
(4) The Common Stock is held in a voting trust under the terms of the Voting Trust Agreement by and among Warburg Pincus Private Equity X, L.P., MBIA Inc., and U.S. Bank National Association, dated as of January 30, 2008.
(5) The warrants are initially exercisable at $40.00 per share, subject to adjustments for certain issuances of common stock, stock splits, stock subdivisions, stock reclassifications, stock combinations, other distributions, certain repurchases, business combinations and similar actions.

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