IDEXX LABORATORIES INC /DE — Director's Dealing 2013

Feb 19, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2013-02-14

Reporting Person: FENNELL GEORGE (CORPORATE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-14	Common Stock	M	143	—	Acquired	938	Direct
2013-02-14	Common Stock	F	53	$91.68	Disposed	885	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-14	Non-Qualified Stock Option (right to buy)	$91.68	A	5541	Acquired	2020-02-13	Common Stock (5541)	Direct
2013-02-14	Incentive Stock Option (right to buy)	$91.68	A	1090	Acquired	2020-02-13	Common Stock (1090)	Direct
2013-02-14	Restricted Stock Unit	$	A	641	Acquired		Common Stock (641)	Direct
2013-02-14	Restricted Stock Unit	$	M	143	Disposed		Common Stock (143)	Direct

Footnotes

F1: Includes 51 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 06/30/2012.

F2: Grant of options to buy shares of common stock becomes exercisable as to 1,327 shares on 02/14/2014, 1,326 shares on 02/14/2015, 02/14/2016 and 02/14/2017, and the remaining 236 shares on 02/14/2018.

F3: Grant of options to buy shares of common stock that vest on the fifth anniversary date (02/14/2018) of the grant.

F4: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The restricted stock units vest in five equal annual installments, beginning on the first anniversary date (02/14/2014) of the date of grant.

F5: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The restricted stock units vest in five equal annual installments, beginning on the first anniversary date (02/14/2013) of the date of grant.