Jonathan Jay Mazelsky - President and CEO, Director at IDEXX LABORATORIES INC /DE

Issuer-level insider activity

Role
President and CEO, Director
Issuer ticker
IDXX on Nasdaq
Identity Names, identifiers, and filing context for this profile. 1 identity field
Entity type
Individual
Source evidence Original filing metadata and source links for verification. 1 source field
Source filing history
Open source filing history

Past-year transaction volume for Jonathan Jay Mazelsky in IDEXX LABORATORIES INC /DE

Buys

Open market
Shares
Avg price
Total value

Sells

Open market
Shares
-23,326
Avg price
$657.55
Total value
-$15,338,081

Net

Past year
Shares
-23,326
Share %
-100%
Total value
-$15,338,081

Reported holdings for Jonathan Jay Mazelsky in IDEXX LABORATORIES INC /DE

Form 4 holding President and CEO, Director

IDEXX LABORATORIES INC /DE

Security class
Restricted Stock Unit
Shares / value
1,099
Estimated value
$977,077
Report date
14 Feb 2026
Price
$444.53
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding President and CEO, Director

IDEXX LABORATORIES INC /DE

Security class
Incentive Stock Option (right-to-buy)
Shares / value
0
Estimated value
Report date
27 Feb 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding President and CEO, Director

IDEXX LABORATORIES INC /DE

Security class
Non-Qualified Stock Option (right-to-buy)
Shares / value
0
Estimated value
Report date
26 Feb 2026
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding President and CEO, Director

IDEXX LABORATORIES INC /DE

Security class
Premium Incentive Stock Option (right-to-buy)
Shares / value
0
Estimated value
Report date
08 Aug 2025
Price
Ownership
Direct
Underlying class
Common Stock
Underlying amount

Transaction history for Jonathan Jay Mazelsky in IDEXX LABORATORIES INC /DE

Sym Class Transaction % SEC-reported value SEC-reported price Shares Shares after Date Ownership
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .