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 *
MAZELSKY JAY
   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)
Executive Vice President
(Last)
(First)
(Middle)
ONE IDEXX DRIVE		 3. Date of Earliest Transaction (Month/Day/Year)
02/14/2017
(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 02/14/2017   M   545 A $ 0 16,190 (1) D  
Common Stock 02/14/2017   M   403 A $ 0 16,593 D  
Common Stock 02/14/2017   M   472 A $ 0 17,065 D  
Common Stock 02/14/2017   M   737 A $ 0 17,802 D  
Common Stock 02/14/2017   F   719 D $ 141.6 (2) 17,083 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) $ 141.6 02/14/2017   A   23,326     (3) 02/13/2027 Common Stock 23,326 (9) 23,326 D  
Incentive Stock Option (right-to-buy) $ 141.6 02/14/2017   A   706     (3) 02/13/2027 Common Stock 706 (9) 706 D  
Restricted Stock Unit (4) 02/14/2017   A   2,295     (4)   (4) Common Stock 2,295 (9) 14,452 D  
Restricted Stock Unit (5) 02/14/2017   M     545   (5)   (5) Common Stock 545 (9) 13,907 D  
Restricted Stock Unit (6) 02/14/2017   M     403   (6)   (6) Common Stock 403 (9) 13,504 D  
Restricted Stock Unit (7) 02/14/2017   M     472   (7)   (7) Common Stock 472 (7) 13,032 D  
Restricted Stock Unit (8) 02/14/2017   M     737   (8)   (8) Common Stock 737 (9) 12,295 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MAZELSKY JAY
ONE IDEXX DRIVE
WESTBROOK, ME 04092		       Executive Vice President  

Signatures

 /s/ Lily J. Lu, Attorney-in-Fact for Jay Mazelsky   02/16/2017
**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) Includes 52 shares acquired under the IDEXX Laboratories, Inc. Employee Stock Purchase Plan on December 31, 2016.
(2) Closing price of Issuer's common stock on the NASDAQ market on February 14, 2017.
(3) Grant of option to buy shares of Issuer common stock that becomes exercisable in five annual installments beginning February 14, 2017.
(4) Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2018.
(5) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2014. The number of RSUs have been adjusted to reflect the 2-for-1 stock split of Issuer common stock that occurred on June 15, 2015 (the "Stock Split").
(6) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2015 and has been adjusted to reflect the Stock Split.
(7) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2016 and has been adjusted to reflect the Stock Split.
(8) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five equal annual installments, beginning February 14, 2017.
(9) Not applicable.

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.