SZOSTAK M ANNE - 06 May 2025 Form 4 Insider Report for IDEXX LABORATORIES INC /DE (IDXX)

Role: Director
Signature: /s/ Lily J. Lu, Attorney-in-Fact for M. Anne Szostak
Issuer symbol: IDXX
Transactions as of: 06 May 2025
Net transactions value: $0
Form type: 4
Filing time: 08 May 2025, 19:01:38 UTC
Previous filing: 10 Feb 2025
Next filing: 23 May 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
SZOSTAK M ANNE	Director	ONE IDEXX DRIVE, WESTBROOK	/s/ Lily J. Lu, Attorney-in-Fact for M. Anne Szostak	08 May 2025	0001094176

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	IDXX	Common Stock	Options Exercise	$0	+262		$0.000000	262	06 May 2025	Direct
holding	IDXX	Common Stock						3,061	06 May 2025	Trust of M. Anne Szostak	F1

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	Options Exercise	$0	-262	-100%	$0.000000	0	06 May 2025	Common Stock	262		Direct	F2
transaction	IDXX	Non-Qualified Stock Option (right-to-buy)	Award	$0	+600		$0.000000	600	07 May 2025	Common Stock	600	$486.61	Direct	F3
transaction	IDXX	Restricted Stock Unit	Award	$0	+257		$0.000000	257	07 May 2025	Common Stock	257		Direct	F4

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

Explanation of Responses:

Id	Content
F1	The reporting person is the settlor of the Trust of M. Anne Szostak ("Trust") and the trustee of the Trust, has power to direct the distribution of Trust assets, and has the power to revoke or amend the Trust. The reporting person has a pecuniary interest in the shares held by the Trust.
F2	Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. These restricted stock units vested in one installment on the one year anniversary of the date of grant or on the date of the 2025 annual meeting of shareholders, whichever event was earlier.
F3	Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that vest in one installment on the one year anniversary of the date of grant or on the date of the 2026 annual meeting of shareholders, whichever event is earlier.
F4	Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. These restricted stock units vest in one installment on the one year anniversary of the date of grant or on the date of the 2026 annual meeting of shareholders, whichever event earlier.