Were George Fennell’s IDEXX (IDXX) share sales open-market transactions?

Yes. The Form 4 identifies each sale with transaction code “S” and describes them as sales in the open market or private transactions. The filing reports multiple sale blocks on February 10, 2026, each at different weighted average prices and resulting share balances.

IDEXX Laboratories (IDXX) EVP Fennell exercises options and sells stock

Filing Impact

(Very High)

Filing Sentiment

(Very Negative)

Form Type

Rhea-AI Filing Summary

IDEXX Laboratories Executive Vice President George Fennell exercised stock options and sold shares in recent transactions. On February 9 and 10, 2026, he exercised options covering 1,476 and 11,345 shares of common stock at an exercise price of $67.85 per share.

On February 10, 2026, Fennell then sold 11,345 shares of common stock in multiple open-market transactions at weighted average prices ranging from about $642.99 to $650.32 per share. After these trades, he directly beneficially owned 9,823 shares of IDEXX common stock.

Insider Trade Summary

Net Seller: 11,345 shares ($7,336,993)

Net Sell 12 txns

Insider FENNELL GEORGE

Role Executive Vice President

Sold 11,345 shs ($7.34M)

Type	Security	Shares	Price	Value
Exercise	Non-Qualified Stock Option (right-to-buy)	11,345	$0.00	--
Exercise	Common Stock	11,345	$67.85	$770K
Sale	Common Stock	1,130	$642.9974	$727K
Sale	Common Stock	397	$644.016	$256K
Sale	Common Stock	2,161	$645.2512	$1.39M
Sale	Common Stock	2,782	$646.2259	$1.80M
Sale	Common Stock	1,060	$647.2066	$686K
Sale	Common Stock	966	$648.7792	$627K
Sale	Common Stock	2,809	$649.2599	$1.82M
Sale	Common Stock	40	$650.32	$26K
Exercise	Incentive Stock Option (right-to-buy)	1,476	$0.00	--
Exercise	Common Stock	1,476	$67.85	$100K

Holdings After Transaction: Non-Qualified Stock Option (right-to-buy) — 0 shares (Direct); Common Stock — 21,168 shares (Direct); Incentive Stock Option (right-to-buy) — 0 shares (Direct)

Footnotes (1)

Represents the weighted average price of the shares sold ranging from a low of $642.595 to a high of $643.47 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $643.65 to a high of $644.47 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $644.75 to a high of $645.60 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $645.80 to a high of $646.71 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $646.825 to a high of $647.69 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $648.02 to a high of $649.00 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Represents the weighted average price of the shares sold ranging from a low of $649.05 to a high of $649.72 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price. Grant of option to buy 1,476 shares of Issuer common stock that vested on February 14, 2021. Grant of option to buy 11,345 shares of Issuer common stock that vested in five annual installments beginning on February 14, 2017.

Form 4 Insider Transactions: What Each Field Means →

02/11/2026 - 05:01 PM

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^*

FENNELL GEORGE

(Last)

(First)

(Middle)

ONE IDEXX DRIVE

(Street)

WESTBROOK

04092

(City)

(State)

(Zip)

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)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
02/09/2026

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

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

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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/09/2026		M		1,476	A	$67.85	9,823	D
Common Stock	02/10/2026		M		11,345	A	$67.85	21,168	D
Common Stock	02/10/2026		S		1,130	D	$642.9974⁽¹⁾	20,038	D
Common Stock	02/10/2026		S		397	D	$644.016⁽²⁾	19,641	D
Common Stock	02/10/2026		S		2,161	D	$645.2512⁽³⁾	17,480	D
Common Stock	02/10/2026		S		2,782	D	$646.2259⁽⁴⁾	14,698	D
Common Stock	02/10/2026		S		1,060	D	$647.2066⁽⁵⁾	13,638	D
Common Stock	02/10/2026		S		966	D	$648.7792⁽⁶⁾	12,672	D
Common Stock	02/10/2026		S		2,809	D	$649.2599⁽⁷⁾	9,863	D
Common Stock	02/10/2026		S		40	D	$650.32	9,823	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Incentive Stock Option (right-to-buy)	$67.85	02/09/2026		M			1,476	⁽⁸⁾	02/13/2026	Common Stock	1,476	$0	0	D
Non-Qualified Stock Option (right-to-buy)	$67.85	02/10/2026		M			11,345	⁽⁹⁾	02/13/2026	Common Stock	11,345	$0	0	D

Explanation of Responses:

1. Represents the weighted average price of the shares sold ranging from a low of $642.595 to a high of $643.47 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

2. Represents the weighted average price of the shares sold ranging from a low of $643.65 to a high of $644.47 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

3. Represents the weighted average price of the shares sold ranging from a low of $644.75 to a high of $645.60 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

4. Represents the weighted average price of the shares sold ranging from a low of $645.80 to a high of $646.71 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

5. Represents the weighted average price of the shares sold ranging from a low of $646.825 to a high of $647.69 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

6. Represents the weighted average price of the shares sold ranging from a low of $648.02 to a high of $649.00 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

7. Represents the weighted average price of the shares sold ranging from a low of $649.05 to a high of $649.72 per share. The undersigned undertakes, upon request by the Commission staff, the issuer or a security holder of the issuer, to provide full information regarding the number of shares purchased at each separate price.

8. Grant of option to buy 1,476 shares of Issuer common stock that vested on February 14, 2021.

9. Grant of option to buy 11,345 shares of Issuer common stock that vested in five annual installments beginning on February 14, 2017.

Remarks:

	/s/ Lily J. Lu, Attorney-in-Fact for George Fennell	02/11/2026
	** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transactions did IDEXX (IDXX) executive George Fennell report?

George Fennell reported exercising options and selling IDEXX shares. He exercised options for 1,476 and 11,345 common shares at $67.85 per share, then sold 11,345 shares in several open-market trades, all on February 10, 2026, at prices above $642 per share.

How many IDEXX (IDXX) shares does George Fennell own after these trades?

After the reported transactions, George Fennell directly beneficially owned 9,823 IDEXX common shares. This figure reflects the net result of his option exercises and the subsequent open-market sales disclosed for February 9 and 10, 2026 in the Form 4 filing.

At what prices did George Fennell sell IDEXX (IDXX) shares on February 10, 2026?

Fennell sold IDEXX shares at weighted average prices between $642.9974 and $650.32 per share. Footnotes explain each weighted average reflects multiple trades within a narrow price range, and detailed trade-level pricing is available upon request from the issuer or Commission staff.

What stock options did George Fennell exercise in the IDEXX (IDXX) Form 4?

He exercised an incentive stock option for 1,476 shares and a non-qualified stock option for 11,345 shares, both with a $67.85 exercise price. Footnotes note these options were previously granted awards that had fully vested before the February 2026 exercises.

Does the IDEXX (IDXX) Form 4 show any indirect ownership for George Fennell?

No. The transactions are reported with direct ownership, coded “D” for ownership form. The filing does not reference any trusts, family entities, or other indirect ownership structures in the ownership or footnote descriptions for these particular transactions.