SEC Form 3

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 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* SANDELL ASSET MANAGEMENT CORP (Last) (First) (Middle) 40 WEST 57TH STREET 26TH FLOOR (Street) NEW YORK NY 10019 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 02/05/2008	3. Issuer Name and Ticker or Trading Symbol FAIR ISAAC CORP [ FIC ]
		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 of 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

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)

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: 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

Explanation of Responses:

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.

	Thomas E. Sandell, Chief Executive Officer of Sandell Asset Management Corp.	02/07/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
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