IDEXX LABORATORIES INC /DE — Director's Dealing 2011

Aug 16, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2011-08-12

Reporting Person: RAINES MERILEE (Corporate VP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-08-12	Common Stock	M	24000	$13.3150	Acquired	195294	Direct
2011-08-12	Common Stock	S	12200	$76.5173	Disposed	183094	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-08-12	Incentive Stock Option (right to buy)	$13.3150	M	8204	Disposed	2012-02-12	Common Stock (8204)	Direct
2011-08-12	Non-Qualified Stock Option (right to buy)	$13.3150	M	15796	Disposed	2012-02-12	Common Stock (15796)	Direct

Footnotes

F1: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $76.50 to $76.66, 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.

F2: Grant of options to buy shares of common stock becomes exercisable as to 694 shares on 02/12/2006, and the remaining 7,510 shares on 02/12/2007.

F3: Grant of options to buy shares of common stock becomes exercisable as to 8,000 shares on 02/12/2005, 7,306 shares on 02/12/2006, and the remaining 490 shares on 02/12/2007.