Andrew Emerson - 12 Feb 2026 Form 4 Insider Report for IDEXX LABORATORIES INC /DE (IDXX)

Signature
/s/ Lily J. Lu, Attorney-in-Fact for Andrew Emerson
Issuer symbol
IDXX
Transactions as of
12 Feb 2026
Net transactions value
-$77,410
Form type
4
Filing time
17 Feb 2026, 19:30:10 UTC
Previous filing
11 Aug 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Emerson Andrew EVP, CFO and Treasurer ONE IDEXX DRIVE, WESTBROOK /s/ Lily J. Lu, Attorney-in-Fact for Andrew Emerson 17 Feb 2026 0002058587

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IDXX Common Stock Options Exercise $0 +61 +1.6% $0.000000 3,950 14 Feb 2026 Direct F1
transaction IDXX Common Stock Options Exercise $0 +94 +2.4% $0.000000 4,044 14 Feb 2026 Direct
transaction IDXX Common Stock Options Exercise $0 +42 +1% $0.000000 4,086 14 Feb 2026 Direct
transaction IDXX Common Stock Options Exercise $0 +194 +4.7% $0.000000 4,280 14 Feb 2026 Direct
transaction IDXX Common Stock Options Exercise $0 +65 +1.5% $0.000000 4,345 14 Feb 2026 Direct F2
transaction IDXX Common Stock Tax liability $77,410 -123 -2.8% $629.35 4,222 14 Feb 2026 Direct F3, F4

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) Award $0 +4,270 $0.000000 4,270 12 Feb 2026 Common Stock 4,270 $617.20 Direct F5
transaction IDXX Incentive Stock Option (right-to-buy) Award $0 +162 $0.000000 162 12 Feb 2026 Common Stock 162 $617.20 Direct F6
transaction IDXX Restricted Stock Unit Award $0 +729 $0.000000 729 12 Feb 2026 Common Stock 729 Direct F7
transaction IDXX Restricted Stock Unit Award $0 +284 $0.000000 284 12 Feb 2026 Common Stock 284 Direct F8
transaction IDXX Restricted Stock Unit Options Exercise $0 -65 -25% $0.000000 193 12 Feb 2026 Common Stock 65 Direct F9
transaction IDXX Restricted Stock Unit Options Exercise $0 -61 -100% $0.000000 0 14 Feb 2026 Common Stock 61 Direct F10
transaction IDXX Restricted Stock Unit Options Exercise $0 -94 -50% $0.000000 93 14 Feb 2026 Common Stock 94 Direct F11
transaction IDXX Restricted Stock Unit Options Exercise $0 -42 -34% $0.000000 83 14 Feb 2026 Common Stock 42 Direct F12
transaction IDXX Restricted Stock Unit Options Exercise $0 -194 -25% $0.000000 581 14 Feb 2026 Common Stock 194 Direct F13
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Includes a total of 18.666 shares purchased under the Issuer Employee Stock Purchase Plan on September 30, 2025 and December 31, 2025.
F2 Represents Restricted Stock Units ('RSU') that were granted on February 14, 2025, were deferred in accordance with the Issuer's Deferred Compensation Plan and have vested. Upon vesting, these RSUs were recorded in an account under such Plan and represents a contingent right to receive one share of Issuer common stock that is payable as soon as practicable after the reporting person's separation of service with the Issuer or a date specified by the reporting person.
F3 Closing price of Issuer common stock on Nasdaq Global Select Market on February 13, 2026.
F4 Includes 65 vested but deferred RSUs.
F5 Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.
F6 Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.
F7 Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.
F8 Grant of RSUs that upon vesting, will be deferred and recorded in an account under the Issuer's Deferred Compensation Plan. This RSU grant vests in four annual installments, beginning February 14, 2027.
F9 Represents RSUs that were granted on February 14, 2025 and deferred in accordance with the Issuer's Deferred Compensation Plan and represents a contingent right to receive one share of Issuer common stock vesting in four annual installments, beginning February 14, 2026. Upon vesting, each such RSU will be recorded in an account under such Plan.
F10 Represents RSUs that were granted on February 14, 2025 and deferred in accordance with the Issuer's Deferred Compensation Plan and represents a contingent right to receive one share of Issuer common stock vesting in four annual installments, beginning February 14, 2026. Upon vesting, each such RSU will be recorded in an account under such Plan.
F11 Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments beginning on February 14, 2024.
F12 Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments beginning on February 14, 2025.
F13 Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments beginning on February 14, 2026.