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: Williams Michael J PhD (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-14	Common Stock	M	258	—	Acquired	9424	Direct
2013-02-14	Common Stock	M	258	—	Acquired	9682	Direct
2013-02-14	Common Stock	M	399	—	Acquired	10081	Direct
2013-02-14	Common Stock	M	400	—	Acquired	10481	Direct
2013-02-14	Common Stock	M	343	—	Acquired	10824	Direct
2013-02-14	Common Stock	F	835	$91.68	Disposed	9989	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	13018	Acquired	2020-02-13	Common Stock (13018)	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	1363	Acquired		Common Stock (1363)	Direct
2013-02-14	Restricted Stock Unit	$	M	258	Disposed		Common Stock (258)	Direct
2013-02-14	Restricted Stock Unit	$	M	258	Disposed		Common Stock (258)	Direct
2013-02-14	Restricted Stock Unit	$	M	399	Disposed		Common Stock (399)	Direct
2013-02-14	Restricted Stock Unit	$	M	400	Disposed		Common Stock (400)	Direct
2013-02-14	Restricted Stock Unit	$	M	343	Disposed		Common Stock (343)	Direct

Footnotes

F1: Grant of options to buy shares of common stock becomes exercisable as to 2,822 shares on 02/14/2014, 02/14/2015 and 02/14/2016, 2,821 shares on 02/14/2017, and the remaining 1,731 shares on 02/14/2018.

F2: Grant of options to buy shares of common stock that vest on the fifth anniversary date (02/14/2018) of the grant.

F3: 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.

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.