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: Williams Michael J PhD (Corporate Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-14	Common Stock	M	258	—	Acquired	9610	Direct
2012-02-14	Common Stock	M	399	—	Acquired	10009	Direct
2012-02-14	Common Stock	M	400	—	Acquired	10409	Direct
2012-02-14	Common Stock	M	343	—	Acquired	10752	Direct
2012-02-14	Common Stock	M	476	—	Acquired	11228	Direct
2012-02-14	Common Stock	F	623	$87.42	Disposed	10605	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	11662	Acquired	2019-02-13	Common Stock (11662)	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	1287	Acquired		Common Stock (1287)	Direct
2012-02-14	Restricted Stock Unit	$	M	258	Disposed		Common Stock (258)	Direct
2012-02-14	Restricted Stock Unit	$	M	399	Disposed		Common Stock (399)	Direct
2012-02-14	Restricted Stock Unit	$	M	400	Disposed		Common Stock (400)	Direct
2012-02-14	Restricted Stock Unit	$	M	343	Disposed		Common Stock (343)	Direct
2012-02-14	Restricted Stock Unit	$	M	476	Disposed		Common Stock (476)	Direct

Footnotes

F1: Includes 56 shares, 75 shares and 67 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 06/30/2011, 09/30/2011 and 12/30/2011, respectively.

F2: Grant of options to buy shares of common stock becomes exercisable as to 2,561 shares on 02/14/2013, 02/14/2014, 02/14/2015, 02/14/2016, and the remaining 1,418 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.

F6: 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 (02/14/2011) of the date of grant.

F7: 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 (02/14/2010) of the date of grant.

F8: 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 (02/14/2009) of the date of grant.

F9: 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 (02/14/2008) of the date of grant.