IDEXX LABORATORIES INC /DE — Director's Dealing 2012

Sep 5, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2012-08-31

Reporting Person: POLEWACZYK JAMES F (Corporate Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-31	Common Stock	M	2500	$34.37	Acquired	8501	Direct
2012-08-31	Common Stock	M	1201	$56.95	Acquired	9702	Direct
2012-08-31	Common Stock	M	1755	$56.95	Acquired	11457	Direct
2012-08-31	Common Stock	M	3	$34.37	Acquired	11460	Direct
2012-08-31	Common Stock	S	5459	$95.0102	Disposed	6001	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-08-31	Non-Qualified Stock Option (right to buy)	$34.37	M	2500	Disposed	2016-02-13	Common Stock (2500)	Direct
2012-08-31	Non-Qualified Stock Option (right to buy)	$56.95	M	1201	Disposed	2015-02-13	Common Stock (1201)	Direct
2012-08-31	Incentive Stock Option (right to buy)	$56.95	M	1755	Disposed	2015-02-13	Common Stock (1755)	Direct
2012-08-31	Incentive Stock Option (right to buy)	$34.37	M	3	Disposed	2016-02-13	Common Stock (3)	Direct

Footnotes

F1: Includes 79 shares and 51 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on 03/30/2012 and 06/30/2012, respectively.

F2: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $95.00 to $95.10, 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 options to buy shares of common stock becomes exercisable as to 4,149 on 02/14/2010, 02/14/2011, 04/14/2012, 02/14/2013, and the remaining 1,241 shares on 02/14/2014.

F4: Grant of options to buy shares of common stock becomes exercisable as to 1,201 shares on 02/14/2009, 02/14/2010, 02/14/2011, 02/14/2012, and the remaining 1,200 shares on 02/14/2013.

F5: Grant of options to buy shares of common stock that vest in five equal annual installments, beginning on the first anniversary date (02/14/2009) of the date of grant.

F6: Grant of options to buy shares of common stock becomes exercisable as to 1 share on 02/14/2010, 02/14/2011, 02/14/2012, 02/14/2013, and the remaining 2,909 shares on 02/14/2014.