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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
RAINES MERILEE
   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)
VP & CFO
(Last)
(First)
(Middle)
C/O IDEXX LABORATORIES, INC., ONE IDEXX DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
05/03/2005
(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 05/03/2005   M   6,400 A $ 22.5 22,100 D  
Common Stock 05/03/2005   S   6,400 D $ 57.9932 15,700 D  
Common Stock 05/04/2005   M   500 A $ 22.5 16,200 D  
Common Stock 05/04/2005   M   9,966 A $ 22.5 26,166 D  
Common Stock 05/04/2005   M   2,034 A $ 22.5 28,200 D  
Common Stock 05/04/2005   M   21,600 A $ 22.5 49,800 D  
Common Stock 05/04/2005   S   21,600 D $ 57.4994 28,200 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Incentive Stock Option (right to buy) $ 22.5 05/04/2005   M     9,966   (1) 05/26/2005 Common Stock 9,966 $ 22.5 0 D  
Non-Qualified Stock Option (right to buy) $ 22.5 05/03/2005   M     6,400   (2) 05/25/2005 Common Stock 6,400 $ 22.5 23,634 D  
Non-Qualified Stock Option (right to buy) $ 22.5 05/04/2005   M     2,034   (2) 05/25/2005 Common Stock 2,034 $ 22.5 21,600 D  
Non-Qualified Stock Option (right to buy) $ 22.5 05/04/2005   M     21,600   (2) 05/25/2005 Common Stock 21,600 $ 22.5 0 D  
Non-Qualified Stock Option (right to buy) $ 22.5 05/04/2005   M     500   (3) 05/26/2005 Common Stock 500 $ 22.5 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
RAINES MERILEE
C/O IDEXX LABORATORIES, INC.
ONE IDEXX DRIVE
WESTBROOK, ME 04092		       VP & CFO  

Signatures

 Conan R. Deady, Attorney-in-Fact for Merilee Raines   05/05/2005
**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) Grant of option to buy share of Common Stock becomes exercisable as to 760 shares on 5/26/96, 1,182 shares on 5/26/97, 1,992 shares on 5/26/98, 2,616 shares on 5/26/99 and 3,416 shares on 5/26/00.
(2) Grant of option to buy shares of Common Stock becomes exercisable as to 7,240 shares on 5/26/96, 6,818 shares on 5/26/97, 6,008 shares on 5/26/98, 5,384 shares on 5/26/99 and 4,584 shares on 5/26/00.
(3) Grant of option to buy shares of Common Stock becomes exercisable in five equal annual increments, beginning on first anniversary of the date of grant (5/26/96).

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