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IDEXX LABORATORIES INC /DE

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3057
SEC CIK
0000874716
Parsed reports
597

Last 12 months

Inside the activity.

0 purchase rows · 36 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 202504
Dec 202500
Jan 202600
Feb 2026030
Mar 202601
Apr 202600
May 202600
Jun 202600
Jul 202600
Aug 202600
Sep 202601
Oct 202600

Latest available

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Hunt NimrataExecutive Vice President
GrantIncentive Stock Option (right-to-buy) · Derivative 162 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000021 · wk-form4_1771374631.xml · derivative · entry 9

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162

Underlying: Common Stock · 162 shares

Expires 2036-02-11

F4 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Hunt NimrataExecutive Vice President
GrantNon-Qualified Stock Option (right-to-buy) · Derivative 4,625 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000021 · wk-form4_1771374631.xml · derivative · entry 8

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,625

Underlying: Common Stock · 4,625 shares

Expires 2036-02-11

F3 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Lane MichaelExecutive Vice President
GrantRestricted Stock Unit · Derivative 1,620 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000023 · wk-form4_1771374647.xml · derivative · entry 10

Lane Michael · CIK 0001740689 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,620

Underlying: Common Stock · 1,620 shares

Expires not disclosed

F9 · derivative.exercise_price: 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 three annual installments, beginning February 14, 2027.

F9 · derivative.exercise_date: 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 three annual installments, beginning February 14, 2027.

F9 · derivative.expiration_date: 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 three annual installments, beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Lane MichaelExecutive Vice President
GrantRestricted Stock Unit · Derivative 1,262 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000023 · wk-form4_1771374647.xml · derivative · entry 9

Lane Michael · CIK 0001740689 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,262

Underlying: Common Stock · 1,262 shares

Expires not disclosed

F8 · derivative.exercise_price: 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.

F8 · derivative.exercise_date: 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.

F8 · derivative.expiration_date: 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.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Lane MichaelExecutive Vice President
GrantIncentive Stock Option (right-to-buy) · Derivative 162 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000023 · wk-form4_1771374647.xml · derivative · entry 8

Lane Michael · CIK 0001740689 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162

Underlying: Common Stock · 162 shares

Expires 2036-02-11

F7 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Lane MichaelExecutive Vice President
GrantNon-Qualified Stock Option (right-to-buy) · Derivative 5,361 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000023 · wk-form4_1771374647.xml · derivative · entry 7

Lane Michael · CIK 0001740689 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,361

Underlying: Common Stock · 5,361 shares

Expires 2036-02-11

F6 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
FENNELL GEORGEExecutive Vice President
GrantRestricted Stock Unit · Derivative 810 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000020 · wk-form4_1771374623.xml · derivative · entry 8

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 810

Underlying: Common Stock · 810 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted stock unit ('RSU') represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F4 · derivative.exercise_date: Each restricted stock unit ('RSU') represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F4 · derivative.expiration_date: Each restricted stock unit ('RSU') represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
FENNELL GEORGEExecutive Vice President
GrantIncentive Stock Option (right-to-buy) · Derivative 162 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000020 · wk-form4_1771374623.xml · derivative · entry 7

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162

Underlying: Common Stock · 162 shares

Expires 2036-02-11

F3 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
FENNELL GEORGEExecutive Vice President
GrantNon-Qualified Stock Option (right-to-buy) · Derivative 3,384 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000020 · wk-form4_1771374623.xml · derivative · entry 6

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,384

Underlying: Common Stock · 3,384 shares

Expires 2036-02-11

F2 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Erickson Michael GExecutive Vice President
GrantRestricted Stock Unit · Derivative 1,580 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000019 · wk-form4_1771374615.xml · derivative · entry 9

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,580

Underlying: Common Stock · 1,580 shares

Expires not disclosed

F6 · derivative.exercise_price: 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.

F6 · derivative.exercise_date: 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.

F6 · derivative.expiration_date: 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.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Erickson Michael GExecutive Vice President
GrantRestricted Stock Unit · Derivative 4,739 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000019 · wk-form4_1771374615.xml · derivative · entry 8

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,739

Underlying: Common Stock · 4,739 shares

Expires not disclosed

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F5 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F5 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Emerson AndrewEVP, CFO and Treasurer
Exercise / conversionRestricted Stock Unit · Derivative 65 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000018 · wk-form4_1771374607.xml · derivative · entry 11

Emerson Andrew · CIK 0002058587 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193

Underlying: Common Stock · 65 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_price: 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.

F9 · derivative.exercise_date: 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.

F9 · derivative.expiration_date: 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.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Emerson AndrewEVP, CFO and Treasurer
GrantRestricted Stock Unit · Derivative 284 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000018 · wk-form4_1771374607.xml · derivative · entry 10

Emerson Andrew · CIK 0002058587 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 284

Underlying: Common Stock · 284 shares

Expires not disclosed

F8 · derivative.exercise_price: 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.

F8 · derivative.exercise_date: 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.

F8 · derivative.expiration_date: 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.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Emerson AndrewEVP, CFO and Treasurer
GrantRestricted Stock Unit · Derivative 729 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000018 · wk-form4_1771374607.xml · derivative · entry 9

Emerson Andrew · CIK 0002058587 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 729

Underlying: Common Stock · 729 shares

Expires not disclosed

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F7 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

F7 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vests in four annual installments, beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Emerson AndrewEVP, CFO and Treasurer
GrantIncentive Stock Option (right-to-buy) · Derivative 162 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000018 · wk-form4_1771374607.xml · derivative · entry 8

Emerson Andrew · CIK 0002058587 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162

Underlying: Common Stock · 162 shares

Expires 2036-02-11

F6 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.

Read SEC document
February 12, 2026 Filed Feb 18, 2026 00:30 UTC
Emerson AndrewEVP, CFO and Treasurer
GrantNon-Qualified Stock Option (right-to-buy) · Derivative 4,270 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000018 · wk-form4_1771374607.xml · derivative · entry 7

Emerson Andrew · CIK 0002058587 · EVP, CFO and Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,270

Underlying: Common Stock · 4,270 shares

Expires 2036-02-11

F5 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.

Read SEC document
February 12, 2026 Filed Mar 4, 2026 02:45 UTC Amendment
Erickson Michael GExecutive Vice President
GrantIncentive Stock Option (right-to-buy) · Derivative 162 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000046 · wk-form4a_1772592318.xml · derivative · entry 3

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162

Underlying: Common Stock · 162 shares

Expires 2036-02-11

F2 · security: This Amendment on Form 4/A (this 'Amendment') amends the Form 4 filed on February 17, 2026 (the 'Original Form 4') solely to correct an administrative error, which resulted in the inadvertent erroneous reporting of the equity awards granted to the reporting person on February 12, 2026. Specifically, Table II of the Original Form 4 incorrectly reported that 6,319 restricted stock units (of which 1,580 restricted stock units were deferred) were granted to the reporting person on February 12, 2026, which did not occur. Instead, as reported in this Amendment, a non-qualified stock option to purchase 13,667 shares of Issuer common stock and an incentive stock option to purchase 162 shares of Issuer common stock were granted to the reporting person on February 12, 2026, with an exercise price equal to the closing price of the Issuer's common stock on that day. This Amendment does make any other changes to the Original Form 4.

F4 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in one installment on February 14, 2030.

Read SEC document
February 12, 2026 Filed Mar 4, 2026 02:45 UTC Amendment
Erickson Michael GExecutive Vice President
GrantNon-Qualified Stock Option (right-to-buy) · Derivative 13,667 $0.00 Strike: $617.20 $0.00
Disclosure

SEC source: 0000874716-26-000046 · wk-form4a_1772592318.xml · derivative · entry 2

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,667

Underlying: Common Stock · 13,667 shares

Expires 2036-02-11

F2 · security: This Amendment on Form 4/A (this 'Amendment') amends the Form 4 filed on February 17, 2026 (the 'Original Form 4') solely to correct an administrative error, which resulted in the inadvertent erroneous reporting of the equity awards granted to the reporting person on February 12, 2026. Specifically, Table II of the Original Form 4 incorrectly reported that 6,319 restricted stock units (of which 1,580 restricted stock units were deferred) were granted to the reporting person on February 12, 2026, which did not occur. Instead, as reported in this Amendment, a non-qualified stock option to purchase 13,667 shares of Issuer common stock and an incentive stock option to purchase 162 shares of Issuer common stock were granted to the reporting person on February 12, 2026, with an exercise price equal to the closing price of the Issuer's common stock on that day. This Amendment does make any other changes to the Original Form 4.

F3 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2027.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 11,345 $0.00 Strike: $67.85 $0.00
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · derivative · entry 12

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 11,345 shares

Expires 2026-02-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F9 · derivative.exercise_date: Grant of option to buy 11,345 shares of Issuer common stock that vested in five annual installments beginning on February 14, 2017.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 40 $650.32 $26,012.80
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 10

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,823

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 2,809 $649.26 $1,823,771.06
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 9

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,863

F7 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 966 $648.78 $626,720.71
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 8

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,672

F6 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 1,060 $647.21 $686,039.00
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 7

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,638

F5 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 2,782 $646.23 $1,797,800.45
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 6

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,698

F4 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 2,161 $645.25 $1,394,387.84
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 5

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,480

F3 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 397 $644.02 $255,674.35
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 4

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,641

F2 · 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
SaleCommon Stock 1,130 $643.00 $726,587.06
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 3

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,038

F1 · price: 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.

Read SEC document
February 10, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
Exercise / conversionCommon Stock 11,345 $67.85 $769,758.25
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 2

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,168

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 09, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 1,476 $0.00 Strike: $67.85 $0.00
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · derivative · entry 11

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,476 shares

Expires 2026-02-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F8 · derivative.exercise_date: Grant of option to buy 1,476 shares of Issuer common stock that vested on February 14, 2021.

Read SEC document
February 09, 2026 Filed Feb 11, 2026 22:01 UTC
FENNELL GEORGEExecutive Vice President
Exercise / conversionCommon Stock 1,476 $67.85 $100,146.60
Disclosure

SEC source: 0000874716-26-000005 · wk-form4_1770847267.xml · nonDerivative · entry 1

FENNELL GEORGE · CIK 0001521861 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,823

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
January 30, 2026 Filed Feb 3, 2026 22:01 UTC GrantCommon Stock 36 $670.46 $24,136.56
Disclosure

SEC source: 0000874716-26-000002 · wk-form4_1770156063.xml · nonDerivative · entry 1

HOOLEY JOSEPH L · CIK 0001123847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75

F1 · shares: Represents deferred stock units acquired pursuant to the IDEXX Laboratories, Inc. Director Deferred Compensation Plan (the "Plan") in accordance with Rule 16b-3. The number of deferred stock units, rounded up or down to the nearest whole unit, is determined by dividing the amount of cash compensation deferred pursuant to the Plan ($24,375.00) by the closing price of IDEXX Laboratories, Inc. common stock on the date of the deferral, or if no such price is reported for that date, the closing price for the next preceding date for which such price was reported. Each deferred stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The deferred stock units vest immediately upon grant and are payable only as common stock as soon as practicable following the Director's resignation from the Board of Directors or on such other nondiscretionary and objectively determinable date(s) selected in accordance with the terms of the Plan.

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December 01, 2025 Filed Dec 3, 2025 22:01 UTC GrantNon-Qualified Stock Option (right-to-buy) · Derivative 231 $0.00 Strike: $727.97 $0.00
Disclosure

SEC source: 0000874716-25-000170 · wk-form4_1764799274.xml · derivative · entry 2

Peacock Karen · CIK 0001786299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231

Underlying: Common Stock · 231 shares

Expires 2035-11-30

F1 · security: This equity grant represents pro rata equity compensation earned by the reporting person as a non-employee Director from the date of her election to the IDEXX Laboratories, Inc. Board of Directors on October 6, 2025 until the 2026 annual meeting of stockholders.

F3 · derivative.exercise_date: Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that vests in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

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December 01, 2025 Filed Dec 3, 2025 22:01 UTC GrantRestricted Stock Unit · Derivative 101 $0.00 $0.00
Disclosure

SEC source: 0000874716-25-000170 · wk-form4_1764799274.xml · derivative · entry 1

Peacock Karen · CIK 0001786299 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101

Underlying: Common Stock · 101 shares

Expires not disclosed

F1 · security: This equity grant represents pro rata equity compensation earned by the reporting person as a non-employee Director from the date of her election to the IDEXX Laboratories, Inc. Board of Directors on October 6, 2025 until the 2026 annual meeting of stockholders.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 5,405 $0.00 Strike: $505.53 $0.00
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · derivative · entry 9

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,604

Underlying: Common Stock · 5,405 shares

Expires 2032-02-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F7 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that becomes exercisable in four annual installments beginning February 14, 2023.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 7,125 $0.00 Strike: $288.78 $0.00
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · derivative · entry 8

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 7,125 shares

Expires 2030-02-13

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in four annual installments beginning February 14, 2021.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
SaleCommon Stock 1,378 $705.54 $972,240.73
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 6

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,148.9435

F5 · price: Represents the weighted average price of the shares sold ranging from a low of $705.26 to a high of $705.92 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.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
SaleCommon Stock 1,468 $704.87 $1,034,743.14
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 5

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,526.9435

F4 · price: Represents the weighted average price of the shares sold ranging from a low of $704.235 to a high of $705.175 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.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
SaleCommon Stock 1,465 $703.73 $1,030,970.16
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 4

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,994.9435

F3 · price: Represents the weighted average price of the shares sold ranging from a low of $703.05 to a high of $703.97 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.

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November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
SaleCommon Stock 5,114 $702.20 $3,591,059.49
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 3

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,459.9435

F2 · price: Represents the weighted average price of the shares sold ranging from a low of $702.00 to a high of $703.00 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.

Read SEC document
November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
Exercise / conversionCommon Stock 5,405 $505.53 $2,732,389.65
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 2

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,573.9435

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
November 07, 2025 Filed Nov 10, 2025 22:01 UTC
Hunt NimrataExecutive Vice President
Exercise / conversionCommon Stock 7,125 $288.78 $2,057,557.50
Disclosure

SEC source: 0000874716-25-000168 · wk-form4_1762812070.xml · nonDerivative · entry 1

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,168.9435

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes 11 shares purchased under the Issuer Employee Stock Purchase Plan on September 30, 2025.

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October 30, 2025 Filed Nov 3, 2025 22:00 UTC GrantCommon Stock 39 $628.54 $24,513.06
Disclosure

SEC source: 0000874716-25-000166 · wk-form4_1762207212.xml · nonDerivative · entry 1

HOOLEY JOSEPH L · CIK 0001123847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39

F1 · shares: Represents deferred stock units acquired pursuant to the IDEXX Laboratories, Inc. Director Deferred Compensation Plan (the 'Plan') in accordance with Rule 16b-3. The number of deferred stock units, rounded up or down to the nearest whole unit, is determined by dividing the amount of cash compensation deferred pursuant to the Plan ($24,375.00) by the closing price of IDEXX Laboratories, Inc. common stock on the date of the deferral, or if no such price is reported for that date, the closing price for the next preceding date for which such price was reported. Each deferred stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock. The deferred stock units vest immediately upon grant and are payable only as common stock as soon as practicable following the Director's resignation from the Board of Directors or on such other nondiscretionary and objectively determinable date(s) selected in accordance with the terms of the Plan.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 21:56 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionRestricted Stock Unit · Derivative 18 Not disclosed Not disclosed
Disclosure

SEC source: 0000874716-25-000150 · wk-form4_1756936587.xml · derivative · entry 3

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 18 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vested in four annual installments, beginning September 1, 2022.

F4 · price: Not applicable.

F3 · derivative.exercise_date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vested in four annual installments, beginning September 1, 2022.

F3 · derivative.expiration_date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of Issuer common stock. This RSU grant vested in four annual installments, beginning September 1, 2022.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 21:56 UTC
Smith Martin AlexanderExecutive Vice President
Tax withholdingCommon Stock 5 $647.09 $3,235.45
Disclosure

SEC source: 0000874716-25-000150 · wk-form4_1756936587.xml · nonDerivative · entry 2

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,433.659

F2 · price: Closing price of Issuer common stock on the Nasdaq Global Select Market on August 29, 2025.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 21:56 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionCommon Stock 18 $0.00 $0.00
Disclosure

SEC source: 0000874716-25-000150 · wk-form4_1756936587.xml · nonDerivative · entry 1

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,438.659

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · balance_after: Includes a total of 28.709 shares purchased under the Issuer's Employee Stock Purchase Plan on March 31, 2025 and June 30, 2025.

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September 01, 2025 Filed Sep 3, 2025 21:55 UTC GrantNon-Qualified Stock Option (right-to-buy) · Derivative 364 $0.00 Strike: $647.09 $0.00
Disclosure

SEC source: 0000874716-25-000149 · wk-form4_1756936544.xml · derivative · entry 2

HOOLEY JOSEPH L · CIK 0001123847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 364

Underlying: Common Stock · 364 shares

Expires 2035-08-31

F1 · security: This equity grant represents pro rata equity compensation earned by the reporting person as a non-employee Director from his election to the IDEXX Laboratories, Inc. Board of Directors on July 10, 2025 until the 2026 annual meeting of stockholders.

F3 · derivative.exercise_price: Closing price of Issuer common stock on the Nasdaq Global Select Market on August 29, 2025.

F4 · derivative.exercise_date: Grant of option to buy shares of IDEXX Laboratories, Inc. common stock that vests in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

Read SEC document
September 01, 2025 Filed Sep 3, 2025 21:55 UTC GrantRestricted Stock Unit · Derivative 158 $0.00 $0.00
Disclosure

SEC source: 0000874716-25-000149 · wk-form4_1756936544.xml · derivative · entry 1

HOOLEY JOSEPH L · CIK 0001123847 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158

Underlying: Common Stock · 158 shares

Expires not disclosed

F1 · security: This equity grant represents pro rata equity compensation earned by the reporting person as a non-employee Director from his election to the IDEXX Laboratories, Inc. Board of Directors on July 10, 2025 until the 2026 annual meeting of stockholders.

F2 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

F2 · derivative.exercise_date: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

F2 · derivative.expiration_date: Each restricted stock unit represents a contingent right to receive one share of IDEXX Laboratories, Inc. common stock and vest in one installment on May 7, 2026 or on the date of the 2026 annual meeting of stockholders, whichever event is earlier.

Read SEC document
August 22, 2025 Filed Aug 26, 2025 21:00 UTC Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 2,187 Not disclosed Strike: $206.62 Not disclosed
Disclosure

SEC source: 0000874716-25-000146 · wk-form4_1756242006.xml · derivative · entry 5

SZOSTAK M ANNE · CIK 0001094176 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 2,187 shares

Expires 2028-05-07

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · price: Not applicable.

F4 · derivative.exercise_date: 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.

Read SEC document
August 22, 2025 Filed Aug 26, 2025 21:00 UTC GiftCommon Stock 259 $0.00 $0.00
Disclosure

SEC source: 0000874716-25-000146 · wk-form4_1756242006.xml · nonDerivative · entry 4

SZOSTAK M ANNE · CIK 0001094176 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · The O'Hanian-Szostak Family Foundation

Disclosed balance after: 259

F3 · ownership.nature: 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.

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August 22, 2025 Filed Aug 26, 2025 21:00 UTC GiftCommon Stock 259 $0.00 $0.00
Disclosure

SEC source: 0000874716-25-000146 · wk-form4_1756242006.xml · nonDerivative · entry 3

SZOSTAK M ANNE · CIK 0001094176 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · Trust of M. Anne Szostak

Disclosed balance after: 1,542

F2 · ownership.nature: 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.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.