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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
WASSERMAN REUBEN
   2. Issuer Name and Ticker or Trading Symbol
COGNEX CORP [CGNX] 		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)
COGNEX CORPORATION, ONE VISION DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
02/19/2008
(Street)

NATICK, MA 01760		 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
Non-Qualified Stock Option (right to buy) $ 18.7 02/19/2008   A   7,500   02/19/2009 02/19/2018 Common Stock 7,500 $ 0 7,500 D  
Non-Qualified Stock Option (right to buy) $ 18.7 02/19/2008   A   6,750   02/19/2010 02/19/2018 Common Stock 6,750 $ 0 14,250 D  
Non-Qualified Stock Option (right to buy) $ 16             12/14/2000 03/02/2008 Common Stock 5,000   5,000 D  
Non-Qualified Stock Option (right to buy) $ 21.195             01/01/2004 04/02/2013 Common Stock 10,000   10,000 D  
Non-Qualified Stock Option (right to buy) $ 21.66             01/29/2008 01/29/2017 Common Stock 7,500   7,500 D  
Non-Qualified Stock Option (right to buy) $ 25.02             01/01/2006 01/10/2015 Common Stock 7,500   7,500 D  
Non-Qualified Stock Option (right to buy) $ 25.595             12/31/2004 01/22/2016 Common Stock 10,000   10,000 D  
Non-Qualified Stock Option (right to buy) $ 29.38               (1) 01/30/2016 Common Stock 7,500   7,500 D  
Non-Qualified Stock Option (right to buy) $ 31.94             01/01/2005 02/25/2014 Common Stock 7,500   7,500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
WASSERMAN REUBEN
COGNEX CORPORATION
ONE VISION DRIVE
NATICK, MA 01760		   X      

Signatures

 Reuben Wasserman   02/21/2008
**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) This option vests in four equal annual installments commencing on January 1, 2007.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.