IDEXX LABORATORIES INC /DE — Director's Dealing 2012

Sep 18, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2012-09-14

Reporting Person: CRAIG THOMAS (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-14	Common Stock	M	8000	$17.49	Acquired	18917	Direct
2012-09-14	Common Stock	S	8000	$99.29	Disposed	10917	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-09-14	Non-Qualified STock Option (right to buy)	$17.49	M	8000	Disposed	2013-05-21	Common Stock (8000)	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 $98.95 to $99.52, 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 that vest one year from the date of grant 05/21/2003.