IDEXX LABORATORIES INC /DE — Director's Dealing 2012

Feb 16, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2012-02-14

Reporting Person: TWIGGE GIOVANI (CORPORATE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-14	Common Stock	M	194	—	Acquired	797	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-14	Non-Qualified Stock Option (right to buy)	$87.42	A	7394	Acquired	2019-02-13	Common Stock (7394)	Direct
2012-02-14	Incentive Stock Option (right to buy)	$87.42	A	1143	Acquired	2019-02-13	Common Stock (1143)	Direct
2012-02-14	Restricted Stock Unit	$	A	858	Acquired		Common Stock (858)	Direct
2012-02-14	Restricted Stock Unit	$	M	194	Disposed		Common Stock (194)	Direct

Footnotes

F1: Includes 69 shares and 62 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 09/30/2011 and 12/30/2011, respectively.

F2: Grant of options to buy shares of common stock becomes exercisable as to 1,708 shares on 02/14/2013 and 02/14/2014, 1,707 shares on 02/14/2015 and 02/14/2016, and the remaining 564 shares on 02/14/2017.

F3: Grant of options to buy shares of common stock that vest on the fifth anniversary date (02/14/2017) 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 (02/14/2013) 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 (02/14/2012) of the date of grant.