IDEXX director gets 257 shares from RSU vesting

IDEXX Laboratories director Sophie V. Vandebroek reported the vesting of restricted stock units and the resulting common share holdings.

Rhea-AI Filing Summary

IDEXX Laboratories director Sophie V. Vandebroek reported the vesting of restricted stock units and the resulting common share holdings. On May 7, 2026, 257 restricted stock units vested and converted into 257 shares of common stock at a stated price of $0.00 per share.

After this derivative exercise, Vandebroek directly holds 905 shares of common stock and indirectly holds 8,173 shares through the Sophie V. Vandebroek Revocable Trust. The filing shows no open-market purchases or sales, only equity compensation vesting and updated ownership totals.

Insider Trade Summary

257 shares exercised/converted

Exercise 3 txns

Insider Vandebroek Sophie V.

Role Director

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

Holdings After Transaction: Restricted Stock Unit — 0 contracts (Direct); Common Stock — 905 shares (Direct); Common Stock — 8,173 shares (Indirect, By Sophie V. Vandebroek Revocable Trust)

Footnotes (2)

1. F1. 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. F2. Not applicable.

Key Figures

RSUs vested and exercised: 257 shares Direct common shares after transaction: 905 shares Indirect common shares via trust: 8,173 shares +1 more

4 metrics

RSUs vested and exercised 257 shares Restricted Stock Units converted to common stock on May 7, 2026

Direct common shares after transaction 905 shares Direct ownership following RSU conversion

Indirect common shares via trust 8,173 shares Held by Sophie V. Vandebroek Revocable Trust after transaction

Exercise price per RSU $0.00 per share Conversion of restricted stock units into common stock

Key Terms

Restricted Stock Unit, derivative security, Revocable Trust

3 terms

Restricted Stock Unit financial

"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."

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.

derivative security financial

"transaction_code_description: Exercise or conversion of derivative security"

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.

Revocable Trust financial

"nature_of_ownership: By Sophie V. Vandebroek Revocable Trust"

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

FAQ

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

What insider transaction did Sophie V. Vandebroek report for IDEXX (IDXX)?

Director Sophie V. Vandebroek reported the vesting of 257 restricted stock units into 257 shares of IDEXX common stock on May 7, 2026. This was recorded as a derivative exercise, not an open-market purchase or sale, updating her equity compensation holdings.

How many IDEXX (IDXX) shares does Sophie V. Vandebroek own after this Form 4?

Following the reported transactions, Sophie V. Vandebroek holds 905 IDEXX common shares directly and 8,173 shares indirectly. The indirect position is held through the Sophie V. Vandebroek Revocable Trust, reflecting both personal and trust-based ownership after the restricted stock units vested.

Were any IDEXX (IDXX) shares bought or sold on the market in this Form 4?

No market purchases or sales were reported. The Form 4 shows a derivative exercise where 257 restricted stock units converted into 257 common shares at $0.00 per share, along with a holding entry for trust-owned shares, but no open-market buy or sell transactions.

What is the nature of the derivative transaction reported for IDEXX (IDXX)?

The derivative transaction is an exercise of 257 restricted stock units into an equal number of IDEXX common shares. Each unit represented a contingent right to one share that vested in a single installment on May 7, 2026, as part of Vandebroek’s equity compensation.

How are IDEXX (IDXX) shares attributed between direct and indirect ownership for Vandebroek?

The filing attributes 905 IDEXX common shares to Sophie V. Vandebroek as direct ownership. An additional 8,173 shares are reported as indirectly owned through the Sophie V. Vandebroek Revocable Trust, distinguishing her personal holdings from those held via the trust.

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

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Accepted by SEC EDGAR 05/11/2026 - 05:11 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^*

Vandebroek Sophie V.

(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	905	D
Common Stock								8,173	I	By Sophie V. Vandebroek Revocable Trust

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

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 Sophie V. Vandebroek	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)