IDEXX director Essig granted RSUs and stock options

IDEXX Laboratories director Stuart Essig reported receiving equity compensation awards.

Rhea-AI Filing Summary

IDEXX Laboratories director Stuart Essig reported receiving equity compensation awards. He was granted 234 restricted stock units and a non-qualified stock option for 525 shares of common stock at an exercise price of $533.92 per share. Both awards vest in a single installment after about one year or on the 2027 annual shareholder meeting date, whichever comes first.

Insider Trade Summary

Grant/Award: 759 shares

Grant/Award 2 txns

Insider ESSIG STUART

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Non-Qualified Stock Option (right-to-buy)	525	$0.00	$0.00
Grant/Award	Restricted Stock Unit	234	$0.00	$0.00

Holdings After Transaction: Non-Qualified Stock Option (right-to-buy) — 525 contracts (Direct); Restricted Stock Unit — 234 contracts (Direct)

Footnotes (2)

1. F1. Grant of option to buy shares of Issuer common stock that vest in one installment on the one year anniversary of the date of grant or on the date of the 2027 annual meeting of shareholders, whichever event is earlier.
2. F2. Each restricted stock unit represents a contingent right to receive one share of Issuer 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 2027 annual meeting of shareholders, whichever event is earlier.

Key Figures

RSU grant size: 234 units Option grant size: 525 shares Option exercise price: $533.92/share +4 more

7 metrics

RSU grant size 234 units Restricted stock units granted to director on 2026-05-12

Option grant size 525 shares Non-qualified stock option granted to director on 2026-05-12

Option exercise price $533.92/share Conversion or exercise price for non-qualified stock option

RSUs underlying shares 234 shares Each RSU represents one share of common stock

Option expiration 2036-05-11 Expiration date of non-qualified stock option grant

Post-grant RSU holdings 234 units Total restricted stock units following transaction

Post-grant option holdings 525 options Total options following transaction for this grant

Key Terms

Restricted Stock Unit, Non-Qualified Stock Option (right-to-buy), annual meeting of shareholders

3 terms

Restricted Stock Unit financial

"Each restricted stock unit represents a contingent right to receive one share of Issuer common stock."

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

Non-Qualified Stock Option (right-to-buy) financial

"Grant of option to buy shares of Issuer common stock that vest in one installment."

annual meeting of shareholders financial

"Vests in one installment on the one year anniversary of the date of grant or on the date of the 2027 annual meeting of shareholders."

A yearly gathering where a company’s owners (shareholders) vote on key items like electing the board, approving executive pay, and ratifying auditors, and receive updates on performance and strategy. Think of it as an annual town hall for owners: it matters to investors because outcomes and disclosures can affect leadership, corporate direction, dividend and governance policies, and therefore the company’s risk and potential return.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What equity awards did Stuart Essig receive in IDEXX (IDXX) on this Form 4?

Stuart Essig received two equity awards: 234 restricted stock units and a non-qualified stock option for 525 shares of IDEXX common stock. Both are compensation grants rather than open-market purchases or sales, reflecting standard director incentive alignment with shareholders.

How do the restricted stock units granted to Stuart Essig at IDEXX (IDXX) vest?

Each restricted stock unit vests in one installment after the grant. Vesting occurs on the one-year anniversary of the grant date or on the date of IDEXX’s 2027 annual shareholder meeting, whichever happens earlier, at which point each unit converts into one share of common stock.

What are the key terms of Stuart Essig’s stock option grant at IDEXX (IDXX)?

Essig received a non-qualified stock option covering 525 shares of IDEXX common stock with an exercise price of $533.92 per share. The option vests in one installment on the one-year anniversary of the grant date or at the 2027 annual meeting, and expires in 2036.

Does this IDEXX (IDXX) Form 4 show Stuart Essig buying or selling shares?

The Form 4 shows awards being granted, not market trades. Essig acquired derivative interests through 234 restricted stock units and a 525-share non-qualified stock option as compensation. There are no open-market purchases or sales reported in this filing’s transaction summary.

When do Stuart Essig’s new IDEXX (IDXX) equity awards become exercisable or deliver shares?

Both the restricted stock units and the stock option vest in a single tranche. Vesting occurs on the earlier of the one-year anniversary of the grant date or IDEXX’s 2027 annual shareholder meeting, after which units settle in shares and the option becomes exercisable until 2036.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/14/2026 - 05:00 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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 for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ESSIG STUART

(Last) (First) (Middle)

ONE IDEXX DRIVE

(Street)

WESTBROOK MAINE 04092

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
IDEXX LABORATORIES INC /DE [ IDXX ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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

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 Securities Underlying Derivative Security (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: 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)	$533.92	05/12/2026		A		525		(1)	05/11/2036	Common Stock	525	$0	525	D
Restricted Stock Unit	(2)	05/12/2026		A		234		(2)	(2)	Common Stock	234	$0	234	D

Explanation of Responses:

1. Grant of option to buy shares of Issuer common stock that vest in one installment on the one year anniversary of the date of grant or on the date of the 2027 annual meeting of shareholders, whichever event is earlier.

2. Each restricted stock unit represents a contingent right to receive one share of Issuer 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 2027 annual meeting of shareholders, whichever event is earlier.

Remarks:

	/s/ Lily J. Lu, Attorney-in-Fact for Stuart Essig	05/14/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)