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 *
  SANDELL ASSET MANAGEMENT CORP
 2. Date of Event Requiring Statement (Month/Day/Year)
02/05/2008		 3. Issuer Name and Ticker or Trading Symbol
FAIR ISAAC CORP [FIC]
(Last)
(First)
(Middle)
40 WEST 57TH STREET, 26TH FLOOR		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
See Remarks
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10019		 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 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 2,874,000
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

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
SANDELL ASSET MANAGEMENT CORP
40 WEST 57TH STREET
26TH FLOOR
NEW YORK, NY 10019		   X     See Remarks

Signatures

Thomas E. Sandell, Chief Executive Officer of Sandell Asset Management Corp. 02/07/2008
**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) Sandell Asset Management Corp., a Cayman Islands exempted company ("SAMC"), beneficially owns the securities reported herein through Castlerigg Master Investments Ltd., a British Virgin Islands company ("Castlerigg Master Investments") and CGS, Ltd., a Cayman Islands exempted company ("CGS").
(2) SAMC is the investment manager of Castlerigg Master Investments and CGS. Thomas Sandell is the controlling person of SAMC and may be deemed to share beneficial ownership of the shares beneficially owned by Castlerigg Master Investments, CGS and SAMC. Castlerigg International Ltd., a British Virgin Islands company ("Castlerigg International"), is the controlling shareholder of Castlerigg International Holdings Limited, a British Virgin Islands company ("Holdings"). Holdings is the controlling shareholder of Castlerigg Master Investments. Castlerigg Global Select Fund Limited, a Cayman Islands exempted company ("Castlerigg Global Select"), is the controlling shareholder of Castlerigg GS Holdings, Ltd., a Cayman Islands exempted company ("CGSH"). CGSH is the controlling shareholder of CGS.
(3) Each of Holdings and Castlerigg International may be deemed to share beneficial ownership of the shares beneficially owned by Castlerigg Master Investments. In addition, each of CGSH and Castlerigg Global Select may be deemed to share beneficial ownership of the shares beneficially owned by CGS. SAMC, Mr. Sandell, Holdings, Castlerigg International, Castlerigg Master Investments, CGSH, Castlerigg Global Select and CGS each disclaims beneficial ownership of the securities reported herein except to the extent of its or his respective pecuniary interest therein, and this report shall not be deemed to be an admission that any Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.
 
Remarks:
Sandell Asset Management Corp. might be deemed to be a director of the issuer by deputization, as a result of Nick Graziano,
 an employee of Sandell Asset Management Corp., being appointed to serve on the board of directors of the issuer.  Mr.
 Graziano has filed his own Form 3.

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