Form 4 Tracker
Jonathan Jay Mazelsky

Director; Director, President and CEO · 3 filings · Latest: Mar 31, 2026

DENTSPLY SIRONA Inc.
IDEXX LABORATORIES INC /DE
TickerOwnerRelationshipDateTransactionCost#SharesValue ($)#Shares TotalSEC Filing
IDXX
Jonathan Jay MazelskyDirector, President and CEOFeb 27, 2026
Option Exercise
$505.53197$99.6K83,803.302
IDXX
Jonathan Jay MazelskyDirector, President and CEOFeb 26, 2026
Sale
$657.5523,326$15.3M83,606.302
IDXX
Jonathan Jay MazelskyDirector, President and CEOFeb 26, 2026
Option Exercise
$141.6023,326$3.3M106,932.302
IDXX
JONATHAN J MAZELSKYFeb 26, 2026
Proposed Sale
$657.5523,326$15.3M
IDXX
Jonathan Jay MazelskyDirector, President and CEOFeb 14, 2026
Option Exercise
$0.002,05784,521.302
IDXX
JONATHAN J MAZELSKYAug 6, 2025
Proposed Sale
$631.9829,260$18.5M