IDEXX LABORATORIES INC /DE — Director's Dealing 2013

Feb 4, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2013-01-31

Reporting Person: NAQUI ALI (Corporate Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-01-31	Common Stock	M	11498	$41.935	Acquired	23418	Direct
2013-01-31	Common Stock	S	8540	$95.53	Disposed	14878	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-01-31	Non-Qualified Stock Option (right to buy)	$41.935	M	8540	Disposed	2014-02-13	Common Stock (8540)	Direct
2013-01-31	Incentive Stock Option (right to buy)	$41.935	M	2958	Disposed	2014-02-13	Common Stock (2958)	Direct

Footnotes

F1: Grant of options to buy shares of common stock becomes exercisable as to 2,300 shares on 02/14/2008, 02/14/2009 and 02/14/2010 and the remaining 1,640 shares on 02/14/2011.

F2: Grant of options to buy shares of common stock becomes exercisable as to 660 shares on 02/14/2011 and the remaining 2,298 shares on 02/14/2012.