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 *
TWIGGE GIOVANI
  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)
CORPORATE VICE PRESIDENT
(Last)
(First)
(Middle)
IDEXX LABORATORIES, INC., ONE IDEXX DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
02/14/2019
(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 02/14/2019   M   282 A $ 0 17,975 D  
Common Stock 02/14/2019   M   345 A $ 0 18,320 D  
Common Stock 02/14/2019   M   405 A $ 0 18,725 D  
Common Stock 02/14/2019   M   212 A $ 0 18,937 D  
Common Stock 02/14/2019   M   169 A $ 0 19,106 D  
Common Stock 02/14/2019   F   428 D $ 206.94 18,678 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
Non-Qualified Stock Option (right-to-buy) $ 206.94 02/14/2019   M   7,186     (1) 02/13/2029 Common Stock 7,186 (9) 7,186 D  
Incentive Stock Option (right-to-buy) $ 206.94 02/14/2019   M   483     (2) 02/13/2029 Common Stock 483 (9) 483 D  
Restricted Stock Unit (3) 02/14/2019   M   785     (3)   (3) Common Stock 785 (9) 4,596 D  
Restricted Stock Unit (4) 02/14/2019   M     282   (4)   (4) Common Stock 282 (9) 4,314 D  
Restricted Stock Unit (5) 02/14/2019   M     345   (5)   (5) Common Stock 345 (9) 3,969 D  
Restricted Stock Unit (6) 02/14/2019   M     405   (6)   (6) Common Stock 405 (9) 3,564 D  
Restricted Stock Unit (7) 02/14/2019   M     212   (7)   (7) Common Stock 212 (9) 3,352 D  
Restricted Stock Unit (8) 02/14/2019   M     169   (8)   (8) Common Stock (9) 169 (9) 3,183 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TWIGGE GIOVANI
IDEXX LABORATORIES, INC.
ONE IDEXX DRIVE
WESTBROOK, ME 04092
      CORPORATE VICE PRESIDENT  

Signatures

 /s/ Lily J. Lu, Attorney-in-Fact for Giovani Twigge   02/19/2019
**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 shares of Issuer common stock that becomes exercisable in five annual installments beginning February 14, 2020.
(2) Grant of option to buy shares of Issuer common stock that becomes exercisable on the fifth anniversary of the date of grant.
(3) Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five annual installments, beginning February 14, 2020.
(4) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vested in five 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 annual installments, beginning February 14, 2016 and has been adjusted to reflect the Stock Split.
(6) Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five annual installments, beginning February 14, 2017.
(7) 6. Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five annual installments, beginning February 14, 2018..
(8) 6. Each RSU represents a contingent right to receive one share of Issuer common stock. This RSU grant vests in five annual installments, beginning February 14, 2019.
(9) Not applicable.

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