IDEXX LABORATORIES INC /DE — Director's Dealing 2015

Sep 3, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2015-09-01

Reporting Person: MAZELSKY JAY (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-09-01	Common Stock	M	2366	$0.00	Acquired	9950	Direct
2015-09-01	Common Stock	F	765	$70.54	Disposed	9185	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-09-01	Restricted Stock Unit	$	M	2366	Disposed		Common Stock (2366)	Direct

Footnotes

F1: The number of securities reported reflects a 2-for-1 stock split in the form of a 100% stock dividend on IDEXX Laboratories, Inc. common stock paid on June 15, 2015 (the "Stock Split") and includes 42 shares (without giving effect to the Stock Split) and 82 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 3/31/2015 and 6/30/2015, respectively.

F2: Represents restricted stock units previously granted on 09/01/2012 that have vested. 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. The number of restricted stock units reported was adjusted to reflect the Stock Split.