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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

MCKEON BRIAN P
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 VP, CFO & Treasurer
(Last)          (First)          (Middle)

ONE IDEXX DRIVE
3. Date of Earliest Transaction (MM/DD/YYYY)

2/14/2016
(Street)

WESTBROOK, ME 04092
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

2/17/2016 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   2/14/2016     M    726   A $0   33187   D    
Common Stock   2/14/2016     M    629   A $0   33816   D    
Common Stock   2/14/2016     F    505   D $67.85   (1) 33331   D    

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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)   $67.85   2/14/2016     A      45535   (7)        (2) 2/13/2026   Common Stock   45535     (6) 45535   D    
Incentive Stock Option (right-to-buy)   $67.85   2/14/2016     A      1474         (2) 2/13/2026   Common Stock   1474     (6) 1474   D    
Restricted Stock Unit     (3) 2/14/2016     A      4053         (3)   (3) Common Stock   4053     (6) 18561   D    
Restricted Stock Unit     (4) 2/14/2016     M         726      (4)   (4) Common Stock   726     (6) 17835   D    
Restricted Stock Unit     (5) 2/14/2016     M         629      (5)   (5) Common Stock   629     (6) 17206   D    

Explanation of Responses:
( 1)  Closing price of Issuer's common stock on the NASDAQ market on February 12, 2016.
( 2)  Grant of option to buy shares of Issuer common stock that becomes exercisable in five annual installments beginning February 14, 2017.
( 3)  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, 2017.
( 4)  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. 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").
( 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, 2016 and has been adjusted to reflect the Stock Split.
( 6)  Not applicable.
( 7)  Amendment filed to correct a typographical error in the number of previously reported stock options awarded.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
MCKEON BRIAN P
ONE IDEXX DRIVE
WESTBROOK, ME 04092


Executive VP, CFO & Treasurer

Signatures
/s/ Lily J. Lu, Attorney-in-Fact for Brian P. McKeon 5/17/2016
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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.
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