SZOSTAK M ANNE - 22 Aug 2025 Form 4 Insider Report for IDEXX LABORATORIES INC /DE (IDXX)

Role
Director
Signature
/s/ Lily J. Lu, Attorney-in-Fact for M. Anne Szostak
Issuer symbol
IDXX
Transactions as of
22 Aug 2025
Net transactions value
-$963,822
Form type
4
Filing time
26 Aug 2025, 17:00:16 UTC
Previous filing
23 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
SZOSTAK M ANNE Director ONE IDEXX DRIVE, WESTBROOK /s/ Lily J. Lu, Attorney-in-Fact for M. Anne Szostak 26 Aug 2025 0001094176

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IDXX Common Stock Options Exercise $451,878 +2,187 +835% $206.62 2,449 22 Aug 2025 Direct
transaction IDXX Common Stock Sale $1,415,700 -2,187 -89% $647.33 262 22 Aug 2025 Direct F1
transaction IDXX Common Stock Gift $0 -259 -14% $0.000000 1,542 22 Aug 2025 Trust of M. Anne Szostak F2
transaction IDXX Common Stock Gift $0 +259 $0.000000 259 22 Aug 2025 The O'Hanian-Szostak Family Foundation F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction IDXX Non-Qualified Stock Option (right-to-buy) Options Exercise -2,187 -100% 0 22 Aug 2025 Common Stock 2,187 $206.62 Direct F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents the weighted average price of the shares sold ranging from a low of $647.30 to a high of $647.45 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.
F2 The reporting person is the settlor of the Trust of M. Anne Szostak ("Trust") and the trustee of the Trust, has power to direct the distribution of Trust assets, and has the power to revoke or amend the Trust. The reporting person has a pecuniary interest in the shares held by the Trust.
F3 The reporting person is a trustee of The O'Hanian-Szostak Family Foundation ('Foundation') and has power to direct the distribution of assets held by the Foundation.
F4 Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that vested in one installment on the one year anniversary of the date of grant or on the date of the 2019 annual meeting of shareholders, whichever event was earlier.
F5 Not applicable.