IDEXX LABORATORIES INC /DE — Director's Dealing 2014

Feb 4, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2014-01-31

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-01-31	Common Stock	M	13000	$25.45	Acquired	390271	Direct
2014-01-31	Common Stock	M	7000	$41.935	Acquired	397271	Direct
2014-01-31	Common Stock	M	25000	$50.00	Acquired	422271	Direct
2014-01-31	Common Stock	S	12589	$112.4482	Disposed	409682	Direct
2014-01-31	Common Stock	S	9900	$113.3537	Disposed	399782	Direct
2014-01-31	Common Stock	S	16600	$114.1165	Disposed	383182	Direct
2014-02-03	Common Stock	M	15072	$25.45	Acquired	398254	Direct
2014-02-03	Common Stock	M	8616	$41.935	Acquired	406870	Direct
2014-02-03	Common Stock	M	25000	$50.00	Acquired	431870	Direct
2014-02-03	Common Stock	S	11300	$110.3855	Disposed	420570	Direct
2014-02-03	Common Stock	S	19400	$111.3895	Disposed	401170	Direct
2014-02-03	Common Stock	S	2986	$112.6540	Disposed	398184	Direct
2014-02-03	Common Stock	S	8519	$113.2903	Disposed	389665	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-01-31	Non-Qualified Stock Option (right to buy)	$25.45	M	13000	Disposed	2014-02-04	Common Stock (13000)	Direct
2014-01-31	Non-Qualified Stock Option (right to buy)	$41.935	M	7000	Disposed	2014-02-13	Common Stock (7000)	Direct
2014-01-31	Non-Qualified Stock Option (right to buy)	$50.00	M	25000	Disposed	2014-02-13	Common Stock (25000)	Direct
2014-02-03	Non-Qualified Stock Option (right to buy)	$25.45	M	15072	Disposed	2014-02-04	Common Stock (15072)	Direct
2014-02-03	Non-Qualified Stock Options (right to buy)	$41.935	M	8616	Disposed	2014-02-13	Common Stock (8616)	Direct
2014-02-03	Non-Qualified Stock Options (right to buy)	$50.00	M	25000	Disposed	2014-02-13	Common Stock (25000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	49000	Indirect

Footnotes

F1: Includes 60 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 12/31/2013.

F2: The sale reported above was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 02/28/2013.

F3: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $111.8450 to $112.8200, 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 ranges set forth in footnotes 3, 4, 5, 6, 7, 8 and 9 to this Form 4.

F4: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $112.8500 to $113.8300, inclusive.

F5: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $113.8500 to $114.3600, inclusive.

F6: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $109.8600 to $110.8500, inclusive.

F7: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $110.8600 to $111.8450 inclusive.

F8: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $111.9136 to $112.9000, inclusive.

F9: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $112.9200 to $113.6900, inclusive.

F10: Grant of options to buy shares of common stock becomes exercisable as to 22,000 shares on 02/05/2005, 02/05/2006, 02/05/2007 and 02/05/2008, and the remaining 18,072 shares on 02/05/2009.

F11: Grant of options to buy shares of common stock becomes exercisable as to 12,000 shares on 02/14/2008, 02/14/2009, 02/14/2010 and 02/14/2011, and the remaining 9,616 shares on 02/14/2012.

F12: Grant of options to buy shares of common stock that vest in five equal annual installments, beginning on the first anniversary date (02/14/2008) of the date of grant.