IDEXX LABORATORIES INC /DE — Director's Dealing 2013

Sep 4, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2013-09-01

Reporting Person: MAZELSKY JAY (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-09-01	Common Stock	M	1184	—	Acquired	1184	Direct
2013-09-01	Common Stock	F	383	$93.82	Disposed	801	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-09-01	Restricted Stock Unit	$	M	1184	Disposed		Common Stock (1184)	Direct

Footnotes

F1: 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 (09/01/2013) of the date of grant.