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: TWIGGE GIOVANI (CORPORATE VICE PRESIDENT)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-14	Common Stock	M	172	—	Acquired	1376	Direct
2013-02-14	Common Stock	M	194	—	Acquired	1570	Direct
2013-02-14	Common Stock	F	137	$91.68	Disposed	1433	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	7375	Acquired	2020-02-13	Commom Stock (7375)	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	818	Acquired		Common Stock (818)	Direct
2013-02-14	Restricted Stock Unit	$	M	172	Disposed		Common Stock (172)	Direct
2013-02-14	Restricted Stock Unit	$	M	194	Disposed		Common Stock (194)	Direct

Footnotes

F1: Includes 43 shares and 53 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 09/30/2012 and 12/31/2012, respectively.

F2: Grant of options to buy shares of common stock becomes exercisable as to 1,693 shares on 02/14/2014, 02/14/2015, 02/14/2016 and 02/14/2017, and the remaining 603 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.

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 (02/14/2012) of the date of grant.