EXHIBIT 10.15
NETEZZA CORPORATION
Amendment No. 2 to
Third Amended and Restated Investor Rights Agreement
     This Amendment No. 2, dated as of April 30, 2007, amends the Third Amended
and Restated Investor Rights Agreement, as amended, dated as of December 22,
2004 among Netezza Corporation, a Delaware corporation (the “Company”), the
Founders and the Purchasers (the “Investor Rights Agreement”). Capitalized terms
not defined herein shall have the meanings ascribed to them in the Investor
Rights Agreement.
     WHEREAS, the Company and the Stockholders desire to amend the Investor
Rights Agreement in anticipation of the initial public offering of the Company’s
common stock;
     NOW, THEREFORE, in consideration of the mutual promises and covenants
contained herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the undersigned parties to this
Amendment No. 2 hereby agree as follows:
     1. Section 1 of the Investor Rights Agreement is hereby amended by deleting
the figure “$4.46 per share” from the definition of “Initial Public Offering”
and inserting the figure “$3.50 per share” in substitution therefor.
     This Amendment No. 2 has been executed as of the date first written above.

            COMPANY:

NETEZZA CORPORATION
      By:   /s/ Patrick J. Scannell, Jr.         Name:   Patrick J. Scannell,
Jr.        Title:   Senior Vice President,
Chief Financial Officer and Treasurer   

 

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            PURCHASERS:

MATRIX PARTNERS VI, L.P.
      By: Matrix VI Management Co., L.L.C.,
its General Partner
      By:   /s/ Paul J. Ferri       Name:   Paul J. Ferri        Managing
Member        MATRIX VI PARALLEL PARTNERSHIP-A, L.P.
      By: Matrix VI Management Co., L.L.C.,
its General Partner
      By:   /s/ Paul J. Ferri       Name:   Paul J. Ferri        Managing
Member        MATRIX VI PARALLEL PARTNERSHIP-B, L.P.
      By: Matrix VI Management Co., L.L.C.,
its General Partner
      By:   /s/ Paul J. Ferri       Name:   Paul J. Ferri        Managing
Member        WESTON & CO. VI LLC, as Nominee
      By: Matrix Partners Management Services, L.P.
Sole Member
      By: Matrix Partners Management Services, GP, LLC,
its General Partner
      By:   /s/ Paul J. Ferri       Name:   Paul J. Ferri        Authorized
Member     

Amendment No. 2 to Third Amended and Restated Investor Rights Agreement

 

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            CHARLES RIVER PARTNERSHIP XI, LP
      By:  Charles River XI GP, LP
Its General Partner

By:   Charles River XI GP, LLC
Its:    General Partner
   

                By:   /s/ Ted R. Dintersmith           Authorized Manager       
Address:  1000 Winter Street, Suite 3300
Waltham, MA 02451     

            CHARLES RIVER FRIENDS XI-A, LP
      By:    Charles River XI GP, LLC
  Its:   General Partner
   

                By:   /s/ Ted R. Dintersmith           Authorized Manager       
Address:  1000 Winter Street, Suite 3300
Waltham, MA 02451     

            CHARLES RIVER FRIENDS XI-B, LP
      By:   Charles River XI GP, LLC
Its: General Partner
         

                By:   /s/ Ted R. Dintersmith           Authorized Manager       
Address: 1000 Winter Street, Suite 3300
Waltham, MA 02451     

Amendment No. 2 to Third Amended and Restated Investor Rights Agreement

 

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            BATTERY VENTURES VI, L.P.

By:  Battery Partners VI, LLC
      By:   /s/ Scott R. Tobin         Member Manager              BATTERY
INVESTMENT PARTNERS VI, LLC
      By:   /s/ Scott R. Tobin         Member Manager             

Amendment No. 2 to Third Amended and Restated Investor Rights Agreement

 

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            Sequoia Capital X
Sequoia Technology Partners X
Sequoia Capital X Principals Fund

      By: SC X Management, L.L.C.
A Delaware Limited Liability Company
General Partner of Each
      By:   /s/ Douglas M. Leone         Managing Member             

Amendment No. 2 to Third Amended and Restated Investor Rights Agreement

 

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            MERITECH CAPITAL PARTNERS II L.P.
      By: Meritech Capital Associates II L.L.C.
its General Partner
      By: Meritech Management Associates II L.L.C.
a managing member
      By:   /s/ Michael B. Gordon         Michael B. Gordon, a managing member 
              MERITECH CAPITAL AFFILIATES II L.P.
      By: Meritech Capital Associates II L.L.C.
its General Partner
      By: Meritech Management Associates II L.L.C.
a managing member
      By:   /s/ Michael B. Gordon         Michael B. Gordon, a managing member 
              MCP ENTREPRENEUR PARTNERS II L.P.
      By: Meritech Capital Associates II L.L.C.
its General Partner
      By: Meritech Management Associates II L.L.C.
a managing member
      By:   /s/ Michael B. Gordon         Michael B. Gordon, a managing member 
           

Amendment No. 2 to Third Amended and Restated Investor Rights Agreement