Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
DEADY CONAN R
   2. Issuer Name and Ticker or Trading Symbol
IDEXX LABORATORIES INC /DE [IDXX] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Corp VP, General Counsel & Sec
(Last)
(First)
(Middle)
ONE IDEXX DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
05/25/2011
(Street)

WESTBROOK, ME 04092		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/25/2011   M   9,764 A $ 28.655 29,111 D  
Common Stock 05/25/2011   M   2,368 A $ 38.335 31,479 D  
Common Stock 05/25/2011   M   218 A $ 41.935 31,697 D  
Common Stock 05/25/2011   M   105 A $ 41.935 31,802 D  
Common Stock 05/25/2011   M   7,545 A $ 34.37 39,347 D  
Common Stock 05/25/2011   S(1)   20,000 D $ 77.2575 (2) 19,347 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) $ 28.655 05/25/2011   M     9,764   (3) 02/02/2015 Common Stock 9,764 $ 0 0 D  
Incentive Stock Option (right to buy) $ 38.335 05/25/2011   M     2,368   (4) 02/13/2013 Common Stock 2,368 $ 0 0 D  
Incentive Stock Option (right to buy) $ 41.935 05/25/2011   M     218   (5) 02/13/2014 Common Stock 218 $ 0 2,384 D  
Non-Qualified Stock Option (right to buy) $ 41.935 05/25/2011   M     105   (6) 02/13/2014 Common Stock 105 $ 0 17,733 D  
Non-Qualified Stock Option (right to buy) $ 34.37 05/25/2011   M     7,545   (7) 02/13/2016 Common Stock 7,545 $ 0 8,408 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
DEADY CONAN R
ONE IDEXX DRIVE
WESTBROOK, ME 04092		       Corp VP, General Counsel & Sec  

Signatures

 Conan R. Deady   05/26/2011
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The sale reported above was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 03/09/2011.
(2) The sale price reported reflects the weighted average sale price of multiple transactions on the reported date at prices that ranged from $77.00 to $77.56, 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.
(3) Grant of options to buy shares of common stock becomes exercisable as to 4,400 shares on 02/03/2006, 02/03/2007, 02/03/2008, 02/03/2009, and the remaining 912 shares on 02/03/2010.
(4) Grant of options to buy shares of common stock that vest on the fifth anniversary date (02/14/2011) of the grant.
(5) Grant of options to buy shares of common stock becomes exercisable as to 218 shares on 02/14/2011, and the remaining 2,384 shares on 02/14/2012.
(6) Grant of options to buy shares of common stock becomes exercisable as to 4,088 shares on 02/14/2008, 02/14/2009, 02/14/2010, 3,870 shares on 02/14/2011, and the remaining 1,704 shares on 02/14/2012.
(7) Grant of options to buy shares of common stock becomes exercisable as to 3,772 shares on 02/14/2010, 02/14/2013, 3,773 shares on 02/14/2011, 02/14/2012, and the remaining 863 shares on 02/14/2014.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.