Joseph L. Hooley - 01 Sep 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: 01 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 03 Sep 2025, 17:55:48 UTC
Previous filing: 18 Jul 2025
Next filing: 03 Nov 2025
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 Sep 2025	0001123847

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	IDXX	Restricted Stock Unit	Award	$0	+158		$0.000000	158	01 Sep 2025	Common Stock	158		Direct	F1, F2
transaction	IDXX	Non-Qualified Stock Option (right-to-buy)	Award	$0	+364		$0.000000	364	01 Sep 2025	Common Stock	364	$647.09	Direct	F1, F3, F4

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

Explanation of Responses:

Id	Content
F1	This equity grant represents pro rata equity compensation earned by the reporting person as a non-employee Director from his election to the IDEXX Laboratories, Inc. Board of Directors on July 10, 2025 until the 2026 annual meeting of stockholders.
F2	Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.
F3	Closing price of Issuer common stock on the Nasdaq Global Select Market on August 29, 2025.
F4	Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that vests in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.