Statement of Changes in Beneficial Ownership (Form 4)

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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 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 * Lane Michael 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) 02/12/2026 (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 02/14/2026 M 204 A $ 0 7,356.944(1) D Common Stock 02/14/2026 M 220 A $ 0 7,576.944 D Common Stock 02/14/2026 M 301 A $ 0 7,877.944 D Common Stock 02/14/2026 M 367(2) A $ 0 8,244.944 D Common Stock 02/14/2026 F 221 D $629.35(3) 8,023.944(4) D Common Stock 592(5) I by spouse

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)	$617.2	02/12/2026		A		5,361		(6)	02/11/2036	Common Stock	5,361	$ 0	5,361	D
Incentive Stock Option (right-to-buy)	$617.2	02/12/2026		A		162		(7)	02/11/2036	Common Stock	162	$ 0	162	D
Restricted Stock Unit	(8)	02/12/2026		A		1,262		(8)	(8)	Common Stock	1,262	$ 0	1,262	D
Restricted Stock Unit	(9)	02/12/2026		A		1,620		(9)	(9)	Common Stock	1,620	$ 0	1,620	D
Restricted Stock Unit	(10)	02/14/2026		M			367	(10)	(10)	Common Stock	367	$ 0	1,101	D
Restricted Stock Unit	(11)	02/14/2026		M			204	(11)	(11)	Common Stock	204	$ 0	0	D
Restricted Stock Unit	(12)	02/14/2026		M			220	(12)	(12)	Common Stock	220	$ 0	220	D
Restricted Stock Unit	(13)	02/14/2026		M			301	(13)	(13)	Common Stock	301	$ 0	602	D

Reporting Owners

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

Signatures

/s/ Lily J. Lu, Attorney-in-Fact for Michael Lane		02/17/2026
**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 a total of 21 shares purchased under the Issuer Employee Stock Purchase Plan ('ESPP') on September 30, 2025 and December 31, 2025. There are a total of 252.944 shares held in the ESPP which has been increased by 0.005 shares due to a rounding calculation of previously issued fractional shares.
(2)	Represents Restricted Stock Units ('RSU') that were granted on February 14, 2025, were deferred in accordance with the Issuer's Deferred Compensation Plan and have vested. Upon vesting, these RSUs were recorded in an account under such Plan and represents a contingent right to receive one share of Issuer common stock that is payable as soon as practicable after the reporting person's termination of employment with the Issuer.
(3)	Closing price of Issuer common stock on Nasdaq Global Select Market on February 13, 2026.
(4)	Includes 367 vested but deferred RSUs.
(5)	Held by the reporting person's spouse in an IRA account. The reporting person disclaims beneficial ownership of the shares of common stock held by his spouse except to the extent of his pecuniary interest therein.
(6)	Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.
(7)	Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.
(8)	Grant of RSUs that upon vesting, will be deferred and recorded in an account under the Issuer's Deferred Compensation Plan. This RSU grant vests in four annual installments, beginning February 14, 2027.
(9)	Grant of RSUs that upon vesting, will be deferred and recorded in an account under the Issuer's Deferred Compensation Plan. This RSU grant vests in three annual installments, beginning February 14, 2027.
(10)	Represents RSUs that were granted on February 14, 2025 and deferred in accordance with the Issuer's Deferred Compensation Plan and represents a contingent right to receive one share of Issuer common stock vesting in four annual installments, beginning February 14, 2026. Upon vesting, each such RSU will be recorded in an account under such Plan.
(11)	Each RSU represents a contingent right to receive one share of Issuer common stock that vested in four annual installments, beginning February 14, 2023.
(12)	Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2024.
(13)	Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments beginning on February 14, 2025.

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