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 *
PRAHALAD C K
  2. Issuer Name and Ticker or Trading Symbol
TERADATA CORP /DE/ [TDC]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
1700 S. PATTERSON BOULEVARD
3. Date of Earliest Transaction (Month/Day/Year)
10/01/2007
(Street)

DAYTON, OH 45479
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
Common Stock 10/01/2007   A   979 (1) A $ 0 45,006 (2) 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
Director Stock Option $ 26.85 10/01/2007   A   3,252     (3) 04/25/2017 Common Stock 3,252 $ 0 (5) 3,252 D  
Director Stock Option $ 23.68 10/01/2007   A   3,724     (4) 04/26/2016 Common Stock 3,724 $ 0 (6) 3,724 D  
Director Stock Option $ 17.72 10/01/2007   A   8,000     (4) 04/27/2015 Common Stock 8,000 $ 0 (7) 8,000 D  
Director Stock Option $ 12.48 10/01/2007   A   8,000     (4) 04/28/2014 Common Stock 8,000 $ 0 (8) 8,000 D  
Director Stock Option $ 5.95 10/01/2007   A   8,000     (4) 04/23/2013 Common Stock 8,000 $ 0 (9) 8,000 D  
Director Stock Option $ 10.55 10/01/2007   A   12,000     (4) 04/24/2012 Common Stock 12,000 $ 0 (10) 12,000 D  
Director Stock Option $ 12.33 10/01/2007   A   12,000     (4) 04/18/2011 Common Stock 12,000 $ 0 (11) 12,000 D  
Director Stock Option $ 10.64 10/01/2007   A   12,000     (4) 04/27/2010 Common Stock 12,000 $ 0 (12) 12,000 D  
Director Stock Option $ 13.87 10/01/2007   A   10,000     (4) 04/15/2009 Common Stock 10,000 $ 0 (13) 10,000 D  
Director Stock Option $ 8.7 10/01/2007   A   4,046     (4) 04/16/2008 Common Stock 4,046 $ 0 (14) 4,046 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
PRAHALAD C K
1700 S. PATTERSON BOULEVARD
DAYTON, OH 45479
  X      

Signatures

 /s/ Margaret A. Treese, Attorney-in-fact for C. K. Prahalad   10/03/2007
**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) These restricted stock units were granted by the issuer in substitution of 979 shares of restricted stock units of NCR Corporation ("NCR"), at a ratio of 1 to 1, in connection with the spin-off of the issuer by NCR (the "Spin-Off") pursuant to which, on September 30, 2007, NCR distributed one share of the issuer's common stock for every one share of NCR common stock held as of the close of business on September 14, 2007.
(2) Includes shares of common stock acquired as a result of the distribution of issuer common stock in connection with the Spin-Off.
(3) This option vests on April 25, 2008.
(4) This option is fully exercisable.
(5) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 3,252 shares of common stock of NCR Corporation at an exercise price of $49.80.
(6) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 3,724 shares of common stock of NCR Corporation at an exercise price of $43.92.
(7) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 8,000 shares of common stock of NCR Corporation at an exercise price of $32.86.
(8) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 8,000 shares of common stock of NCR Corporation at an exercise price of $23.14.
(9) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 8,000 shares of common stock of NCR Corporation at an exercise price of $11.03.
(10) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 12,000 shares of common stock of NCR Corporation at an exercise price of $19.56.
(11) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 12,000 shares of common stock of NCR Corporation at an exercise price of $22.87.
(12) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 12,000 shares of common stock of NCR Corporation at an exercise price of $19.73.
(13) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 10,000 shares of common stock of NCR Corporation at an exercise price of $25.72.
(14) In connection with the Spin-Off, this option was granted by the issuer in substitution of an option to purchase 4,046 shares of common stock of NCR Corporation at an exercise price of $16.13.

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