Joseph L. Hooley - 30 Oct 2025 Form 4 Insider Report for IDEXX LABORATORIES INC /DE (IDXX)

Role: Director
Signature: /s/ Lily J. Lu, Attorney-in-Fact for Joseph L. Hooley
Issuer symbol: IDXX
Transactions as of: 30 Oct 2025
Net transactions value: +$24,513
Form type: 4
Filing time: 03 Nov 2025, 17:00:14 UTC
Previous filing: 03 Sep 2025
Next filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
HOOLEY JOSEPH L	Director	ONE IDEXX DRIVE, WESTBROOK	/s/ Lily J. Lu, Attorney-in-Fact for Joseph L. Hooley	03 Nov 2025	0001123847

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IDXX	Common Stock	Award	$24,513	+39		$628.54	39	30 Oct 2025	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents deferred stock units acquired pursuant to the IDEXX Laboratories, Inc. Director Deferred Compensation Plan (the 'Plan') in accordance with Rule 16b-3. The number of deferred stock units, rounded up or down to the nearest whole unit, is determined by dividing the amount of cash compensation deferred pursuant to the Plan ($24,375.00) by the closing price of IDEXX Laboratories, Inc. common stock on the date of the deferral, or if no such price is reported for that date, the closing price for the next preceding date for which such price was reported. Each deferred stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The deferred stock units vest immediately upon grant and are payable only as common stock as soon as practicable following the Director's resignation from the Board of Directors or on such other nondiscretionary and objectively determinable date(s) selected in accordance with the terms of the Plan.

Content

Represents deferred stock units acquired pursuant to the IDEXX Laboratories, Inc. Director Deferred Compensation Plan (the 'Plan') in accordance with Rule 16b-3. The number of deferred stock units, rounded up or down to the nearest whole unit, is determined by dividing the amount of cash compensation deferred pursuant to the Plan ($24,375.00) by the closing price of IDEXX Laboratories, Inc. common stock on the date of the deferral, or if no such price is reported for that date, the closing price for the next preceding date for which such price was reported. Each deferred stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The deferred stock units vest immediately upon grant and are payable only as common stock as soon as practicable following the Director's resignation from the Board of Directors or on such other nondiscretionary and objectively determinable date(s) selected in accordance with the terms of the Plan.