Mazelsky Jonathan Jay

President and CEO, DirectorIDEXX LABORATORIES INC /DE (IDXX) · full profile →Form 4 · filed Mar 2, 2026
Net Selling
Open-Market Buys
$0
Open-Market Sells
$15.3M
Net Open-Market Flow
-$15.3M
Transactions
17
15 non-derivative · 2 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Feb 27, 2026Option exercise(M)197$505.53$100K84K
Feb 26, 2026Sell(S)1K$651.49$713K105K
Feb 26, 2026Sell(S)1K$650.67$834K106K
Feb 26, 2026Option exercise(M)23K$141.60$3.3M107K
Feb 26, 2026Sell(S)3K$663.04$1.7M84K
Feb 26, 2026Sell(S)1K$662.16$662K86K
Feb 26, 2026Sell(S)1K$661.10$793K87K
Feb 26, 2026Sell(S)3K$659.75$1.9M88K
Feb 26, 2026Sell(S)2K$652.49$1.1M103K
Feb 26, 2026Sell(S)1K$653.68$765K102K
Feb 26, 2026Sell(S)1K$654.63$727K101K
Feb 26, 2026Sell(S)1K$655.85$976K99K
Feb 26, 2026Sell(S)1K$656.85$882K98K
Feb 26, 2026Sell(S)4K$658.92$2.4M91K
Feb 26, 2026Sell(S)3K$657.84$1.9M95K

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
Feb 27, 2026Option exercise(M)197$00
Feb 26, 2026Option exercise(M)23K$00

Transaction Codes

M
Option exercise / conversion
S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0000874716-26-000043) within minutes of acceptance. Every field above traces to the original document. Verify it directly: