IDEXX LABORATORIES INC /DE — Director's Dealing 2013

Feb 5, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: IDEXX LABORATORIES INC /DE (IDXX)
CIK: 0000874716
Period of Report: 2013-01-31

Reporting Person: RAINES MERILEE (Executive VP & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-01-31	Common Stock	S	47576	$95.2716	Disposed	45500	Direct
2013-01-31	Common Stock	S	7500	$95.9563	Disposed	38000	Direct
2013-01-31	Common Stock	S	27216	$95.4637	Disposed	39159	Indirect
2013-01-31	Common Stock	S	4159	$95.9772	Disposed	35000	Indirect

Footnotes

F1: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $94.81 to $95.80, 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 1, 3, 4 and 5 to this Form 4.

F2: Excludes 10,870 and 42,075 shares previously owned directly, which were contributed to a Charitable Remainder Trust on 12/4/2012 and 1/23/2013, respectively.

F3: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $95.81 to $96.09, inclusive.

F4: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $94.83 to $95.8201, inclusive.

F5: The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $95.83 to $96.09, inclusive.