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Nasdaq · USD

IDXX

IDEXX LABORATORIES INC /DE

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Tapewire entity
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 26, 2026 Filed Feb 27, 2026 22:03 UTC
Hunt NimrataExecutive Vice President
SaleCommon Stock 2,693 $661.54 $1,781,530.72
Disclosure

SEC source: 0000874716-26-000041 · wk-form4_1772229804.xml · nonDerivative · entry 1

Hunt Nimrata · CIK 0001800619 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,898.944

F1 · price: Represents the weighted average price of the shares sold ranging from a low of $661.35 to a high of $661.8275 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 23,326 $0.00 Strike: $141.60 $0.00
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · derivative · entry 16

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 23,326 shares

Expires 2027-02-13

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.

F14 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in five annual installments beginning February 14, 2018.

Read SEC document
February 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 2,589 $663.04 $1,716,620.66
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 14

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,606.302

F13 · price: Represents the weighted average price of the shares sold ranging from a low of $662.72 to a high of $663.505 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,000 $662.16 $662,156.70
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 13

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,195.302

F12 · price: Represents the weighted average price of the shares sold ranging from a low of $661.65 to a high of $662.55 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,200 $661.10 $793,317.12
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 12

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,195.302

F11 · price: Represents the weighted average price of the shares sold ranging from a low of $660.59 to a high of $661.55 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 2,859 $659.75 $1,886,223.82
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 11

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 88,395.302

F10 · price: Represents the weighted average price of the shares sold ranging from a low of $659.31 to a high of $660.275 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 3,660 $658.92 $2,411,634.76
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 10

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,254.302

F9 · price: Represents the weighted average price of the shares sold ranging from a low of $658.30 to a high of $659.24 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 2,860 $657.84 $1,881,433.27
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 9

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,914.302

F8 · price: Represents the weighted average price of the shares sold ranging from a low of $657.305 to a high of $658.275 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,343 $656.85 $882,142.97
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 8

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 97,774.302

F7 · price: Represents the weighted average price of the shares sold ranging from a low of $656.28 to a high of $657.27 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,488 $655.85 $975,904.50
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 7

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 99,117.302

F6 · price: Represents the weighted average price of the shares sold ranging from a low of $655.275 to a high of $656.205 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,111 $654.63 $727,293.26
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 6

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,605.302

F5 · price: Represents the weighted average price of the shares sold ranging from a low of $654.24 to a high of $655.2175 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,171 $653.68 $765,454.95
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 5

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 101,716.302

F4 · price: Represents the weighted average price of the shares sold ranging from a low of $653.19 to a high of $654.155 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,669 $652.49 $1,089,013.32
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 4

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,887.302

F3 · price: Represents the weighted average price of the shares sold ranging from a low of $652.105 to a high of $653.06 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,095 $651.49 $713,377.83
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 3

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,556.302

F2 · price: Represents the weighted average price of the shares sold ranging from a low of $651.06 to a high of $651.85 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
SaleCommon Stock 1,281 $650.67 $833,507.63
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 2

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 105,651.302

F1 · price: Represents the weighted average price of the shares sold ranging from a low of $650.00 to a high of $650.96 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 26, 2026 Filed Mar 2, 2026 22:00 UTC
MAZELSKY JONATHAN JAYDirector · President and CEO
Exercise / conversionCommon Stock 23,326 $141.60 $3,302,961.60
Disclosure

SEC source: 0000874716-26-000043 · wk-form4_1772488807.xml · nonDerivative · entry 1

MAZELSKY JONATHAN JAY · CIK 0001556270 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,932.302

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 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 197 $0.00 Strike: $505.53 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 20

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 197 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.

F13 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in one installment on February 14, 2026.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 183 $0.00 Strike: $544.08 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 19

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 183 shares

Expires 2031-02-13

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.

F12 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in one installment on February 14, 2025.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 483 $0.00 Strike: $206.94 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 18

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 483 shares

Expires 2029-02-13

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.

F11 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in one installment on February 14, 2024.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 817 $0.00 Strike: $178.26 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 17

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 817 shares

Expires 2028-02-13

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.

F10 · derivative.exercise_date: Grant of option to buy shares of Issuer common stock that vested in one installment on February 14, 2023.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionIncentive Stock Option (right-to-buy) · Derivative 719 $0.00 Strike: $141.60 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 16

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 719 shares

Expires 2027-02-13

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 shares of Issuer common stock that vested in one installment on February 14, 2022.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 197 $505.53 $99,589.41
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 13

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 15,092.351

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 · balance_after: Includes 184 vested but deferred restricted stock units.

Read SEC document
February 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 183 $544.08 $99,566.64
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 12

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,895.351

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 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 483 $206.94 $99,952.02
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 11

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,712.351

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 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 817 $178.26 $145,638.42
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 10

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 14,229.351

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 19, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 719 $141.60 $101,810.40
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 9

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,412.351

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 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 4,180 $0.00 Strike: $178.26 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 15

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 4,180 shares

Expires 2028-02-13

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 shares of Issuer common stock that vested in five annual installments beginning on February 14, 2019.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 1,191 $0.00 Strike: $141.60 $0.00
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · derivative · entry 14

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,191 shares

Expires 2027-02-13

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 vested in five annual installments beginning on February 14, 2018.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 40 $629.86 $25,194.50
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 8

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,693.351

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 689 $629.09 $433,443.42
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 7

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,733.351

F5 · price: Represents the weighted average price of the shares sold ranging from a low of $628.755 to a high of $629.615 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 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 2,694 $628.22 $1,692,426.84
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 6

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,422.351

F4 · price: Represents the weighted average price of the shares sold ranging from a low of $627.74 to a high of $628.67 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.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 1,288 $626.26 $806,618.24
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 5

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 16,116.351

F3 · price: Represents the weighted average price of the shares sold ranging from a low of $626.045 to a high of $628.38 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 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 204 $625.24 $127,549.43
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 4

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,404.351

F2 · price: Represents the weighted average price of the shares sold ranging from a low of $624.89 to a high of $625.56 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.

Read SEC document
February 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
SaleCommon Stock 456 $623.76 $284,433.74
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 3

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,608.351

F1 · price: Represents the weighted average price of the shares sold ranging from a low of $623.28 to a high of $624.27 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 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 4,180 $178.26 $745,126.80
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 2

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,064.351

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 17, 2026 Filed Feb 19, 2026 23:00 UTC
Erickson Michael GExecutive Vice President
Exercise / conversionCommon Stock 1,191 $141.60 $168,645.60
Disclosure

SEC source: 0000874716-26-000033 · wk-form4_1771542024.xml · nonDerivative · entry 1

Erickson Michael G · CIK 0002005385 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,884.351

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 17, 2026 Filed Feb 19, 2026 23:00 UTC Exercise / conversionNon-Qualified Stock Option (right-to-buy) · Derivative 945 Not disclosed Strike: $333.90 Not disclosed
Disclosure

SEC source: 0000874716-26-000032 · wk-form4_1771542018.xml · derivative · entry 5

Vandebroek Sophie V. · CIK 0001442078 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 945 shares

Expires 2032-05-10

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.

F2 · price: Not applicable

F1 · 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 2023 annual meeting of stockholders, whichever event was earlier.

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February 17, 2026 Filed Feb 19, 2026 23:00 UTC SaleCommon Stock 519 $628.56 $326,222.64
Disclosure

SEC source: 0000874716-26-000032 · wk-form4_1771542018.xml · nonDerivative · entry 3

Vandebroek Sophie V. · CIK 0001442078 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 648

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February 17, 2026 Filed Feb 19, 2026 23:00 UTC SaleCommon Stock 945 $628.65 $594,070.47
Disclosure

SEC source: 0000874716-26-000032 · wk-form4_1771542018.xml · nonDerivative · entry 2

Vandebroek Sophie V. · CIK 0001442078 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,167

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February 17, 2026 Filed Feb 19, 2026 23:00 UTC Exercise / conversionCommon Stock 945 $333.90 $315,535.50
Disclosure

SEC source: 0000874716-26-000032 · wk-form4_1771542018.xml · nonDerivative · entry 1

Vandebroek Sophie V. · CIK 0001442078 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,112

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 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionRestricted Stock Unit · Derivative 367 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · derivative · entry 13

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,101

Underlying: Common Stock · 367 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.

F10 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

F10 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

F10 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

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February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionRestricted Stock Unit · Derivative 301 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · derivative · entry 12

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 602

Underlying: Common Stock · 301 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: 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.

F9 · derivative.exercise_date: 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.

F9 · derivative.expiration_date: 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.

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February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionRestricted Stock Unit · Derivative 188 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · derivative · entry 11

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 188

Underlying: Common Stock · 188 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.

F8 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2024.

F8 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2024.

F8 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2024.

Read SEC document
February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionRestricted Stock Unit · Derivative 148 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · derivative · entry 10

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 148 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.

F7 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of Issuer common stock that vested in four annual installments, beginning February 14, 2023.

F7 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vested in four annual installments, beginning February 14, 2023.

F7 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock that vested in four annual installments, beginning February 14, 2023.

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February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Tax withholdingCommon Stock 302 $629.35 $190,063.70
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · nonDerivative · entry 5

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,156.659

F2 · price: Closing price of Issuer common stock on Nasdaq Global Select Market on February 13, 2026.

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February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionCommon Stock 367 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · nonDerivative · entry 4

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,458.659

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.

Read SEC document
February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionCommon Stock 301 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · nonDerivative · entry 3

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,091.659

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.

Read SEC document
February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionCommon Stock 188 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · nonDerivative · entry 2

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,790.659

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.

Read SEC document
February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Smith Martin AlexanderExecutive Vice President
Exercise / conversionCommon Stock 148 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000026 · wk-form4_1771374667.xml · nonDerivative · entry 1

Smith Martin Alexander · CIK 0001621358 · Executive Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,602.659

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 21 shares purchased under the Issuer Employee Stock Purchase Plan on September 30, 2025 and December 31, 2025.

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February 14, 2026 Filed Feb 18, 2026 00:31 UTC
Underberg Sharon E.EVP, GC & Corporate Secretary
Exercise / conversionRestricted Stock Unit · Derivative 265 $0.00 $0.00
Disclosure

SEC source: 0000874716-26-000027 · wk-form4_1771374673.xml · derivative · entry 12

Underberg Sharon E. · CIK 0001630353 · EVP, GC & Corporate Secretary

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 795

Underlying: Common Stock · 265 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: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

F9 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

F9 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of Issuer common stock and vests in four annual installments, beginning February 14, 2026.

Read SEC document

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