Exhibit 10.16

 

FIRST AMENDMENT TO EMPLOYMENT AGREEMENT

 

This First Amendment to Employment Agreement (this “Amendment”) dated is made
and entered into effective as of July 19, 2004 (the “Effective Date”), by and
between TippingPoint Technologies, Inc., a Delaware corporation (the “Company”),
and James A. Hamilton (“Employee” and together, the “Parties”). Any capitalized
term used but not defined in this Amendment shall have the meaning given such
term in the Original Agreement (as defined below).

 

RECITALS

 

The Parties previously entered into an Employment Agreement effective as of
September 10, 2003 (the “Original Agreement”); and

 

The Parties now desire to amend the Original Agreement to make the changes set
forth below.

 

AGREEMENT

 

For good and valuable consideration, and in consideration of the mutual
covenants and conditions set forth herein, the receipt and sufficiency of which
is hereby acknowledged, the Parties agree as follows:

 

1. Employee will continue to be employed as President of the Company but will no
longer hold the title and related responsibilities of “Chief Operating Officer.”
As such, the reference in Section 1 of the Original Agreement to “President and
Chief Operating Officer” is hereby amended to read “President.” The Parties
further acknowledge and agree that Employee may have certain operational
responsibilities as determined from time to time by the Company’s Chief
Executive Officer or Board of Directors.

 

2. The Parties agree that the Initial Term of the Original Agreement is extended
so that such Initial Term expires on January 31, 2005 and intend that all
provisions applicable to the Initial Term apply to this extended period. As
such, any references in the Original Agreement to “Initial Term” or “initial
term” shall mean the period beginning on September 10, 2003 and ending on
January 31, 2005.

 

3. Item (g) of the third sentence of Section 2 of the Original Agreement is
hereby deleted in its entirety.

 

4. Except as set forth in this Amendment, the Original Agreement shall remain in
full force and effect and references in the Original Agreement to “this
Agreement,” “hereunder,” “herein,” “hereof,” and words of like effect shall mean
the Original Agreement as amended by this Agreement.

 

5. This Amendment may be executed in one or more counterparts or by facsimile,
each of which shall be deemed an original and all of which signed counterparts,
taken together, shall constitute one instrument.

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IN WITNESS WHEREOF, the Parties have executed this Amendment as of the Effective
Date referenced above.

 

TippingPoint Technologies, Inc.   “Employee”

By:

 

/s/ KIP MCCLANAHAN

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/s/ JAMES A. HAMILTON

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Kip McClanahan

 

James A. Hamilton

   

Chief Executive Officer