IDXX Form 144: Insider Plans Sale of 2,187 Shares ($1.42M)

Idexx Laboratories (IDXX) Form 144 notice: An insider intends to sell 2,187 shares of common stock, representing an aggregate market value of $1,415,700.21, on 08/22/2025 through Morgan Stanley Smith Barney LLC on NASDAQ.

Rhea-AI Filing Summary

Idexx Laboratories (IDXX) Form 144 notice: An insider intends to sell 2,187 shares of common stock, representing an aggregate market value of $1,415,700.21, on 08/22/2025 through Morgan Stanley Smith Barney LLC on NASDAQ. The shares were acquired the same day via stock option exercise and paid in cash. There were 80,004,694 shares outstanding reported for the issuer. The filer reports no sales in the prior three months. The filer certifies they are not aware of undisclosed material adverse information about the issuer.

Positive

• Complete disclosure of broker, number of shares, aggregate value, acquisition method, and payment type
• No sales in prior three months, suggesting this is not part of ongoing heavy insider selling
• Securities were acquired by option exercise and paid in cash, indicating standard compensation monetization

Negative

• None.

Insights

Securities Analyst

TL;DR: Insider plans to sell a small block of shares acquired by option exercise; transaction appears routine and non-recurring.

The notice shows an insider executed options and intends to sell 2,187 shares valued at $1,415,700.21 through a broker on the Nasdaq exchange. The shares were acquired and are to be sold on the same date and were paid for in cash, which is consistent with option exercise followed by an immediate disposition. No other sales were reported in the prior three months, suggesting this is not part of a recurring disposal pattern. As a percentage of the outstanding share count (80,004,694), the block is immaterial from a dilution or control standpoint. The filing contains the required representation that no undisclosed material adverse information exists.

Corporate Governance Expert

TL;DR: Disclosure aligns with Rule 144 procedural requirements; transaction raises no immediate governance concerns.

The Form 144 provides the broker name, size, market value, acquisition method, and payment type, meeting standard disclosure elements. The simultaneous acquisition by exercise and planned sale may reflect routine option monetization. The absence of aggregated sales in the prior three months reduces concern about concentrated insider selling. The filing includes the signature representation about material information, which is standard and important for compliance.

FAQ

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

What does the Form 144 for IDXX disclose?

It discloses an intended sale of 2,187 common shares valued at $1,415,700.21 to be executed on 08/22/2025 via Morgan Stanley Smith Barney LLC on NASDAQ.

How were the shares acquired according to the filing?

The filing states the shares were acquired on 08/22/2025 by a stock option exercise and paid for in cash.

Does the Form 144 show other recent insider sales?

The filing reports Nothing to Report under securities sold during the past three months.

How large is the sale relative to outstanding shares?

The issuer reported 80,004,694 shares outstanding; the 2,187-share block is immaterial as a percentage of that total.

Which broker will handle the sale?

The broker named is Morgan Stanley Smith Barney LLC Executive Financial Services located at 1 New York Plaza, New York.

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

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Accepted by SEC EDGAR 08/22/2025 - 04:06 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001094176
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	IDEXX LABORATORIES, INC.
SEC File Number	000-19271
Address of Issuer	One IDEXX Drive Westbrook MAINE 04092
Phone	207-556-0300
Name of Person for Whose Account the Securities are To Be Sold	MARGARET ANNE SZOSTAK
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	2187	1415700.21	80004694	08/22/2025	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	08/22/2025	Stock Option Exercise	Issuer			2187	08/22/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/22/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ M. Anne Szostak
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)