IDEXX CFO exercises options for 265 shares

IDEXX LABORATORIES INC /DE (IDXX) reported insider equity activity by Andrew Emerson, EVP, CFO and Treasurer.

Rhea-AI Filing Summary

IDEXX LABORATORIES INC /DE (IDXX) reported insider equity activity by Andrew Emerson, EVP, CFO and Treasurer. On August 20, 2026, he exercised an Incentive Stock Option to acquire 265 shares of common stock at an exercise price of $178.26 per share, reducing the option balance to 925 options expiring February 13, 2028. In connection with this exercise, 86 shares of common stock were delivered or withheld to cover the exercise price or tax liability. The filing notes that his common stock holdings include 20 shares purchased under the Employee Stock Purchase Plan on March 31, 2026 and June 30, 2026.

Insider Trade Summary

265 shares exercised/converted

Exercise 3 txns

Insider Emerson Andrew

Role EVP, CFO and Treasurer

Type	Security	Shares	Price	Value
Exercise	Incentive Stock Option (right-to-buy) F3, F2	265	--	--
Exercise	Common Stock F1	265	$178.26	$47K
Exercise Price or Tax Liability	Common Stock	86	$0.00	$0.00

Holdings After Transaction: Incentive Stock Option (right-to-buy) — 925 contracts (Direct); Common Stock — 4,421.444 shares (Direct)

Footnotes (3)

1. F1. Includes a total of 20 shares purchased under the Issuer Employee Stock Purchase Plan on March 31, 2026 and June 30, 2026.
2. F2. Grant of option to buy 1,190 shares of Issuer common stock that became exercisable in one installment on February 14, 2023.
3. F3. Not applicable

Key Figures

Options exercised: 265 shares Exercise price: $178.26 per share Options remaining from grant: 925 shares +4 more

7 metrics

Options exercised 265 shares Incentive Stock Option exercised on August 20, 2026

Exercise price $178.26 per share Exercise price of Incentive Stock Option for 265 shares

Options remaining from grant 925 shares Total shares following transaction for the Incentive Stock Option

Option grant size 1,190 shares Original size of option grant that became exercisable February 14, 2023

Shares withheld or delivered (code F) 86 shares Common shares delivered or withheld for exercise price or tax liability

ESPP shares 20 shares Shares purchased under Employee Stock Purchase Plan on March 31, 2026 and June 30, 2026

Option expiration date February 13, 2028 Expiration date of the Incentive Stock Option

Key Terms

Incentive Stock Option, Employee Stock Purchase Plan, exercise or conversion of derivative security, Payment of exercise price or tax liability

4 terms

Incentive Stock Option financial

"Incentive Stock Option (right-to-buy)"

An incentive stock option is a type of employee benefit that gives a worker the right to buy company shares at a fixed price, with special tax advantages if the employee holds the shares for a required period. Think of it as a coupon to buy future shares at today’s price that can result in lower tax on the gain. Investors care because ISOs can dilute share count, align staff incentives with the stock price, and affect company compensation costs and the timing of potential share sales.

Employee Stock Purchase Plan financial

"purchased under the Issuer Employee Stock Purchase Plan on March 31, 2026"

An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.

exercise or conversion of derivative security financial

"transaction_code_description": "Exercise or conversion of derivative security"

Payment of exercise price or tax liability financial

"Payment of exercise price or tax liability by delivering or withholding securities"

FAQ

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

What did IDXX executive Andrew Emerson report in this Form 4 transaction?

Andrew Emerson exercised an option to acquire 265 shares of IDEXX Laboratories common stock at $178.26 per share and had 86 shares delivered or withheld to pay the exercise price or tax liability, leaving 925 options from this grant outstanding.

How many IDEXX (IDXX) options did Andrew Emerson exercise and at what price?

He exercised 265 options, receiving 265 shares of IDEXX common stock at an exercise price of $178.26 per share, from an Incentive Stock Option grant originally covering 1,190 shares.

How many IDEXX (IDXX) options remain from this grant after the reported Form 4?

After exercising 265 options, 925 options from this Incentive Stock Option grant remain outstanding, with an expiration date of February 13, 2028, as reported in the filing.

What does the code F transaction mean in the IDXX Form 4 for Andrew Emerson?

The code F transaction reports 86 shares of IDEXX common stock delivered or withheld for payment of the option exercise price or tax liability, consistent with the SEC’s definition for transaction code F.

What additional IDEXX (IDXX) shares does Andrew Emerson hold through the Employee Stock Purchase Plan?

His reported common stock holdings include 20 shares purchased under the IDEXX Employee Stock Purchase Plan on March 31, 2026 and June 30, 2026, according to the footnotes.

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

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Available on EDGAR 08/24/2026 - 05:01 PM Accepted by SEC EDGAR 08/24/2026 - 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^*

Emerson Andrew

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, CFO and Treasurer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/20/2026

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
Common Stock	08/20/2026		M		265	A	$178.26	4,507.444(1)	D
Common Stock	08/20/2026		F		86	D	$0	4,421.444	D

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
Incentive Stock Option (right-to-buy)	$178.26	08/20/2026		M			265	(2)	02/13/2028	Common Stock	265	(3)	925	D

Explanation of Responses:

1. Includes a total of 20 shares purchased under the Issuer Employee Stock Purchase Plan on March 31, 2026 and June 30, 2026.

2. Grant of option to buy 1,190 shares of Issuer common stock that became exercisable in one installment on February 14, 2023.

3. Not applicable

Remarks:

	/s/ Lily J. Lu, Attorney-in-Fact for Andrew Emerson	08/24/2026
	** 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)