IDXX

IDEXX LABORATORIES INC /DE

In Vitro & In Vivo Diagnostic SubstancesNasdaqLarge accelerated filer

Total Trades

Buys

Sells

Largest Trade

N/A

Insiders

Institutional Funds

1,246

Inst. Value

$1M+

Activist Filings

Insider Trades

Insider	Title	Type	Value	Shares	Price	Date
Turner Kathy V	Senior Vice Presid…	SELL	$1M+	3K	$436.00	Dec 5, 2022
MAZELSKY JONATHAN JAY	President & CEO	EXERCISE	$1M+	19K	$62.00	Nov 16, 2022
MAZELSKY JONATHAN JAY	President & CEO	SELL	$1M+	11K	$434.47	Nov 16, 2022
Turner Kathy V	Senior Vice Presid…	SELL	$1M+	14K	$426.70	Nov 14, 2022
Turner Kathy V	Senior Vice Presid…	EXERCISE	$1M+	14K	$189.23	Nov 14, 2022
MAZELSKY JONATHAN JAY	President & CEO	EXERCISE	$1M+	24K	$52.00	Nov 9, 2022
MAZELSKY JONATHAN JAY	President & CEO	SELL	$1M+	13K	$382.49	Nov 9, 2022
AYERS JONATHAN W	Director	SELL	$100K–$500K	250	$509.70	Feb 17, 2022

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13F filings as of Dec 31, 2025 · 1,246 funds holding

Fund	Shares	Value	Type
VANGUARD GROUP INC	9.1M	$1M+	SH
J. Stern & Co. LLP	2.7M	$1M+	SH
STATE STREET CORP	3.7M	$1M+	SH
GEODE CAPITAL MANAGEMENT, LLC	2.4M	$1M+	SH
POLEN CAPITAL MANAGEMENT LLC	961K	$1M+	SH
AMERICAN CENTURY COMPANIES INC	629K	$1M+	SH
Capital Research Global Investors	608K	$1M+	SH
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	590K	$1M+	SH
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	550K	$1M+	SH
NORGES BANK	491K	$1M+	SH
DIMENSIONAL FUND ADVISORS LP	485K	$1M+	SH
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC	441K	$1M+	SH
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	431K	$1M+	SH
CAPITAL COUNSEL LLC/NY	427K	$1M+	SH
Railway Pension Investments Ltd	326K	$1M+	SH
AustralianSuper Pty Ltd	300K	$1M+	SH
Clearbridge Investments, LLC	293K	$1M+	SH
Neuberger Berman Group LLC	272K	$1M+	SH
Williams Jones Wealth Management, LLC.	268K	$1M+	SH
TD ASSET MANAGEMENT INC	259K	$1M+	SH