IDEXX LABORATORIES INC /DE — Director's Dealing 2016

Nov 28, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2016-11-23

Reporting Person: CRAIG THOMAS (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-11-23	Common Stock	M	9924	$26.6550	Acquired	32783	Direct
2016-11-23	Common Stock	S	8500	$120.061	Disposed	24283	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-11-23	Non-Qualified Stock Option (right-to-buy)	$26.6550	M	9924	Disposed	2017-02-13	Common Stock (9924)	Direct

Footnotes

F1: Represents the weighted average sales price of the shares sold ranging from a low of $119.5082 to a high of $120.23 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares sold at each separate price.

F2: Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that became exercisable as to 4,962 shares on February 14, 2011, without giving effect to the 2-for-1 stock split of IDEXX Laboratories, Inc. common stock that occurred on June 15, 2015 (the "Stock Split").? The number of derivative securities reported as beneficially owned with respect to this option and its exercise price were adjusted to reflect the Stock Split.

F3: Not applicable.