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 *
Flaxman David R
  2. Issuer Name and Ticker or Trading Symbol
NETEZZA CORP [NZ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
SVP, Products & Technology
(Last)
(First)
(Middle)
C/O NETEZZA CORPORATION, 26 FOREST STREET
3. Date of Earliest Transaction (Month/Day/Year)
11/10/2010
(Street)

MARLBOROUGH, MA 01752
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 11/10/2010   D   25,000 D (1) 0 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
Employee Stock Option (right to buy) $ 6.39 11/10/2010   D     100,000   (2) 12/31/2015 Common Stock 100,000 (2) 0 D  
Employee Stock Option (right to buy) $ 9.6 11/10/2010   D     50,000   (3) 08/31/2016 Common Stock 50,000 (3) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Flaxman David R
C/O NETEZZA CORPORATION
26 FOREST STREET
MARLBOROUGH, MA 01752
      SVP, Products & Technology  

Signatures

 /s/ Corey C. DuFresne (as attorney-in-fact for David R. Flaxman)   11/12/2010
**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) Disposition, pursuant to a merger agreement between the Issuer and International Business Machines Corporation ("IBM") of 25,000 unvested Netezza restricted stock units granted under the Issuer's 2007 Stock Incentive Plan ("Netezza RSUs") in exchange for restricted stock units with respect to shares of IBM common stock ("IBM RSUs") using an exchange ratio of 0.189713 IBM RSUs for each Netezza RSU.
(2) This option was granted on December 31, 2008 and was vested as to 40,000 shares on November 10, 2010. Pursuant to the terms of the merger agreement, this option was, (i) with respect to 40,000 vested shares, cancelled in exchange for a cash payment of $20.61/share, representing the aggregate difference between the exercise price of the option and the merger consideration of $27.00 per share of common stock; and, (ii) with respect to 60,000 unvested shares was converted into an option to acquire shares of IBM common stock at an exercise price of $33.69/share with the right to acquire each Issuer share converted into the right to acquire 0.189713 shares of IBM common stock.
(3) This option was granted on August 31,2009 and was vested as to 12,500 shares on November 10, 2010. Pursuant to the terms of the merger agreement, this option was, (i) with respect to 12,500 vested shares, cancelled in exchange for a cash payment of $17.40/share, representing the aggregate difference between the exercise price of the option and the merger consideration of $27.00 per share of common stock; and, (ii) with respect to 37,500 unvested shares was converted into an option to acquire shares of IBM common stock at an exercise price of $50.61/share with the right to acquire each Issuer share converted into the right to acquire 0.189713 shares of IBM common stock.

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