Director at IDEXX Laboratories (IDXX) gains 339 shares from RSU vesting

Rhea-AI Filing Summary

IDEXX Laboratories director Lawrence D. Kingsley reported the vesting and exercise of restricted stock units into common shares. On May 7, 2026, 82 and 257 restricted stock units each converted into the same number of IDEXX common shares at a stated price of $0.00 per share.

Each restricted stock unit represented a right to receive one share of common stock that vested in a single installment on May 7, 2026. The filing shows only derivative exercises and conversions, with no open-market purchases or sales. These transactions reflect compensation-related equity vesting rather than discretionary trading.

Insider Trade Summary

339 shares exercised/converted

Mixed 4 txns

Insider Kingsley Lawrence D

Role null

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit	257	$0.00	--
Exercise	Restricted Stock Unit	82	$0.00	--
Exercise	Common Stock	257	$0.00	--
Exercise	Common Stock	82	$0.00	--

Holdings After Transaction: Restricted Stock Unit — 0 shares (Direct, null); Common Stock — 9,486 shares (Direct, null)

Footnotes (1)

1. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock that vested in one installment on May 7, 2026. Not applicable.

Key Figures

RSUs exercised: 82 units RSUs exercised: 257 units Total derivative exercises: 339 shares +3 more

6 metrics

RSUs exercised 82 units Restricted stock units converting to common stock on May 7, 2026

RSUs exercised 257 units Additional restricted stock units converting to common stock on May 7, 2026

Total derivative exercises 339 shares ExerciseShares in transaction summary for Form 4

Exercise price per share $0.00 per share Stated price for common stock received from RSU conversion

Exercise transactions count 2 transactions ExerciseCount in transaction summary for derivative exercises

Acquire-direction entries 4 transactions AcquireCount in transaction summary, including derivative entries

Key Terms

Restricted Stock Unit, Exercise or conversion of derivative security, Common Stock, derivative security

4 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.

Exercise or conversion of derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

Common Stock financial

"underlying_security_title: Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

derivative security financial

"transaction_action: derivative exercise/conversion"

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

Form 4 Insider Transactions: What Each Field Means →

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^*

Kingsley Lawrence D

(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)
05/07/2026

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	05/07/2026		M		257	A	$0	9,486	D
Common Stock	05/07/2026		M		82	A	$0	9,568	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
Restricted Stock Unit	(1)	05/07/2026		M			257	(1)	(1)	Common Stock	257	(2)	0	D
Restricted Stock Unit	(1)	05/07/2026		M			82	(1)	(1)	Common Stock	82	(2)	0	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Issuer common stock that vested in one installment on May 7, 2026.

2. Not applicable.

Remarks:

	/s/ Lily J. Lu, Attorney-in-Fact for Lawrence D. Kingsley	05/11/2026
	** 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)

FAQ

What did IDEXX (IDXX) director Lawrence D. Kingsley report on this Form 4?

Lawrence D. Kingsley reported the vesting and exercise of restricted stock units into IDEXX common stock. Two grants of 82 and 257 units each converted into the same number of shares on May 7, 2026, as part of his equity compensation.

How many IDEXX (IDXX) shares came from Kingsley’s RSU vesting?

The filing shows 82 and 257 restricted stock units converting into IDEXX common shares. In total, 339 units were exercised into 339 shares on May 7, 2026, reflecting scheduled equity vesting rather than open-market trading activity.

Were there any open-market buys or sells in this IDEXX (IDXX) Form 4?

No. All reported transactions are coded “M” for exercise or conversion of derivative securities. They represent restricted stock units vesting into common shares at a stated price of $0.00 per share, with no open-market purchases or sales reported.

What does the RSU footnote in the IDEXX (IDXX) filing explain?

The footnote explains each restricted stock unit equals one share of IDEXX common stock. These units vested in a single installment on May 7, 2026, triggering automatic conversion into shares as part of Kingsley’s equity compensation structure.

Does this IDEXX (IDXX) Form 4 show any remaining derivative securities for Kingsley?

The derivative summary in the data is empty, indicating no remaining derivative securities are shown in this particular filing. The reported transactions fully cover the restricted stock units that vested and converted into common shares on May 7, 2026.