IDEXX LABORATORIES INC /DE — Director's Dealing 2017

Aug 16, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2017-08-14

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-08-14	Common Stock	M	18000	$38.795	Acquired	1043034	Direct
2017-08-14	Common Stock	S	18000	$154.9076	Disposed	1025034	Direct
2017-08-14	Common Stock	M	2000	$38.795	Acquired	1027034	Direct
2017-08-15	Common Stock	M	14900	$38.795	Acquired	1041934	Direct
2017-08-15	Common Stock	S	14900	$154.7146	Disposed	1027034	Direct
2017-08-15	Common Stock	M	5100	$38.795	Acquired	1032134	Direct
2017-08-15	Common Stock	S	5100	$154.3334	Disposed	1027034	Direct
2017-08-15	Common Stock	M	2000	$38.795	Acquired	1029034	Direct
2017-08-16	Common Stock	M	20000	$38.795	Acquired	1049034	Direct
2017-08-16	Common Stock	S	20000	$155.4744	Disposed	1029034	Direct
2017-08-16	Common Stock	M	2000	$38.795	Acquired	1031034	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-08-14	Non-Qualified Stock Option (right-to-buy)	$38.795	M	18000	Disposed	2018-02-13	Common Stock (18000)	Direct
2017-08-14	Non-Qualified Stock Option (right-to-buy)	$38.795	M	2000	Disposed	2018-02-13	Common Stock (2000)	Direct
2017-08-15	Non-Qualified Stock Option (right-to-buy)	$38.795	M	14900	Disposed	2018-02-13	Common Stock (14900)	Direct
2017-08-15	Non-Qualified Stock Option (right-to-buy)	$38.795	M	5100	Disposed	2018-02-13	Common Stock (5100)	Direct
2017-08-15	Non-Qualified Stock Option (right-to-buy)	$38.795	M	2000	Disposed	2018-02-13	Common Stock (2000)	Direct
2017-08-16	Non-Qualified Stock Option (right-to-buy)	$38.795	M	20000	Disposed	2018-02-13	Common Stock (20000)	Direct
2017-08-16	Non-Qualified Stock Option (right-to-buy)	$38.795	M	2000	Disposed	2018-02-13	Common Stock (2000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	98000	Indirect

Footnotes

F1: Represents the weighted average sales price of the shares sold ranging from a low of $154.80 to a high of $155.00 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: Represents the weighted average sales price of the shares sold ranging from a low of $154.50 to a high of $154.95 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.

F3: Represents the weighted average sales price of the shares sold ranging from a low of $154.25 to a high of $154.40 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.

F4: Represents the weighted average sales price of the shares sold ranging from a low of $155.08 to a high of $156.025 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.

F5: Grant of option to buy 200,000 shares of IDEXX Laboratories, Inc. common stock that became exercisable in five equal annual installments beginning on February 14, 2012 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.

F6: Not applicable.