Sharon E. Underberg - 04 Nov 2026 Form 4 Insider Report for IDEXX LABORATORIES INC /DE (IDXX)

Reporting relationship: EVP, GC & Corporate Secretary
Issuer ticker: IDXX
Reported as of: 04 Nov 2026
Net transaction value: -$6,132,605
SEC form: 4
Accepted by SEC: 05 Nov 2026, 17:02:01 UTC
Prior SEC filing: 05 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Lily J. Lu, Attorney-in-Fact for Sharon E. Underberg

Filing notes and source

Key filing fact

Sharon E. Underberg filed Form 4 for IDEXX LABORATORIES INC /DE (IDXX) on 05 Nov 2026.

Key facts

This page summarizes Sharon E. Underberg's Form 4 filing for IDEXX LABORATORIES INC /DE (IDXX).
5 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 05 Nov 2026, 17:02.

Change

Previous filing in this sequence was filed on 05 Mar 2026.
Current net transaction value: -$6,132,605.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001630353 Primary reporting owner

Underberg Sharon E.

Relationship: EVP, GC & Corporate Secretary
Address: ONE IDEXX DRIVE, WESTBROOK
Signature: /s/ Lily J. Lu, Attorney-in-Fact for Sharon E. Underberg
Signature date: 05 Nov 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

IDXX transaction

Common Stock

Options Exercise

Transaction value
Shares: +8,906
Change %: +124%
Price: $288.78^*
Shares after: 16,075
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F1

IDXX transaction

Common Stock

Sale

Transaction value: -$4,368,995
Shares: -6,348
Change %: -39%
Price: $688.25
Shares after: 9,727
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F2

IDXX transaction

Common Stock

Sale

Transaction value: -$1,035,636
Shares: -1,503
Change %: -15%
Price: $689.05
Shares after: 8,224
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F3

IDXX transaction

Common Stock

Sale

Transaction value: -$727,973
Shares: -1,055
Change %: -13%
Price: $690.02
Shares after: 7,169
Date: 04 Nov 2026
Ownership: Direct
Footnotes: F4

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IDXX transaction Derivative

Non-Qualified Stock Option (right-to-buy)

Options Exercise

Transaction value
Shares: -8,906
Change %: -100%
Price
Shares after: 0
Date: 04 Nov 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 8,906
Exercise price: $288.78
Footnotes: F5, F6

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 6 footnotes

Footnote F1

Includes a total of 31 shares acquired under the Issuer's Employee Stock Purchase Plan on March 31, 2026, June 30, 2026 and September 30, 2026.

Footnote F2

Represents the weighted average price of the shares sold ranging from a low of $687.70 to a high of $688.67 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.

Footnote F3

Represents the weighted average price of the shares sold ranging from a low of $688.70 to a high of $689.56 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.

Footnote F4

Represents the weighted average price of the shares sold ranging from a low of $690.02 to a high of $690.04 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.

Footnote F5

Grant of option to buy shares of Issuer common stock that vested in four annual installments beginning February 14, 2021.

Footnote F6

Not applicable.