IDEXX LABORATORIES INC /DE — Director's Dealing 2016

Feb 17, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2016-02-14

Reporting Person: MAZELSKY JAY (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-02-14	Common Stock	M	545	$0.00	Acquired	10544	Direct
2016-02-14	Common Stock	M	403	$0.00	Acquired	10948	Direct
2016-02-14	Common Stock	M	472	$0.00	Acquired	11419	Direct
2016-02-14	Common Stock	F	508	$67.85	Disposed	10911	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-02-14	Non-Qualified Stock Option (right-to-buy)	$67.85	A	41260	Acquired	2026-02-13	Common Stock (41260)	Direct
2016-02-14	Incentive Stock Option (right-to-buy)	$67.85	A	1475	Acquired	2026-02-13	Common Stock (1475)	Direct
2016-02-14	Restricted Stock Unit	$	A	3685	Acquired		Common Stock (3685)	Direct
2016-02-14	Restricted Stock Unit	$	M	545	Disposed		Common Stock (545)	Direct
2016-02-14	Restricted Stock Unit	$	M	403	Disposed		Common Stock (403)	Direct
2016-02-14	Restricted Stock Unit	$	M	472	Disposed		Common Stock (472)	Direct

Footnotes

F1: Includes 84 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on December 31, 2015.

F2: Closing price of Issuer's common stock on the NASDAQ market on February 12, 2016.

F3: Grant of option to buy shares of Issuer common stock that becomes exercisable in five annual installments beginning February 14, 2017.

F4: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2017.

F5: Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2014. The number of RSUs have been adjusted to reflect the 2-for-1 stock split of Issuer common stock that occurred on June 15, 2015 (the "Stock Split").

F6: Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2015 and has been adjusted to reflect the Stock Split.

F7: Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2016 and has been adjusted to reflect the Stock Split.

F8: Not applicable.