COGNEX CORP — Director's Dealing 2010

Mar 19, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: COGNEX CORP (CGNX)
CIK: 0000851205
Period of Report: 2010-03-18

Reporting Person: SMITH EDWARD J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-18	Common Stock	M	3750	$18.7	Acquired	3750	Direct
2010-03-18	Common Stock	S	3750	$19.606	Disposed	0	Direct
2010-03-18	Common Stock	M	1687	$18.7	Acquired	1687	Direct
2010-03-18	Common Stock	S	1687	$19.606	Disposed	0	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-18	Non-Qualified Stock Option (right to buy)	$18.7	M	3750	Disposed	2018-02-19	Common Stock (3750)	Direct
2010-03-18	Non-Qualified Stock Option (right to buy)	$18.7	M	1687	Disposed	2018-02-19	Common Stock (1687)	Direct