IDEXX LABORATORIES INC /DE — Director's Dealing 2015

Aug 19, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2015-08-17

Reporting Person: AYERS JONATHAN W (Director, Chairman, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-08-17	Common Stock	M	24000	$17.185	Acquired	956166	Direct
2015-08-17	Common Stock	S	14799	$78.45	Disposed	941367	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-08-17	Non-Qualified Stock Option (right to buy)	$17.185	M	24000	Disposed	2016-02-13	Common Stock (24000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	98000	Indirect

Footnotes

F1: Includes 82 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 6/30/2015.

F2: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $78.36 and $78.58, inclusive. The reporting person hereby undertakes to provide upon request to SEC staff, the issuer or a security holder of the issuer, full information regarding the number of shares sold at each separate price within the range.

F3: Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that became exercisable as to 15,999 shares on 02/14/2010 and 02/14/2013, 16,000 shares on 02/14/2011 and 02/14/2012, and the remaining 13,091 shares on 02/14/2014, 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.