NASDAQ · IDXX

Idexx Laboratories Inc

Smart money pulse

What insiders and funds are doing

Selling Insiders: as of Nov 12 Funds: as of Jun 30, 2026

account_balance
506 funds bought, 526 sold in the quarter ended Jun 30, 2026. 122 were new holders.
info
4 real insider sales in 12 months. $27.4M in total, not counting planned sales.

−100 means everyone selling, +100 everyone buying. This is data, not advice.

How the Pulse works

Pulse runs from −100 (everyone selling) to +100 (everyone buying). Half comes from insiders: real buyers vs. real sellers in the last 90 days (Form 4). Half comes from funds: funds that bought vs. funds that sold last quarter (13F). 13F is a snapshot of long positions on the last day of the quarter, filed up to 45 days later. It does not show short positions or trades since then.

Who owns it

1,306 funds report owning IDXX, down from 1,319

Holdings as of Jun 30, 2026

New122

Added384

Held409

Trimmed391

Sold out135

Last quarter

Who bought and who sold

BlackRock, Inc.

−2%

State Street Corp

+2%

Invesco Ltd.

+115%

Geode Capital Management, LLC

−4%

Bamco Inc

+21%

Bank of New York Mellon Corp

−21%

Fundsmith LLP

−30%

Morgan Stanley

+3%

Change in shares held, biggest holdings first. Bars stop at ±100%.

Insider trades · last 12 months

Real buys and sales

● Open-market buy● Open-market sale

Last 6 months. A wider screen shows 12.

Showing 4 real trades. Hidden: 1 stock grant, 3 option exercises. Those happen on a schedule and say little about what an insider thinks. Bigger dot means a bigger trade.

Real trades, newest first

Nov 4 Jonathan Mazelsky Executive Chair of the Board, Director Open-market sale $17.7M 25,140 sh at $703.19

Nov 4 Sharon Underberg EVP, GC & Corporate Secretary Open-market sale $6.13M 8,906 sh at $688.59

Nov 4 Michael Lane Executive Vice President Open-market sale $2.74M 3,979 sh at $688.64

Nov 4 Daniel Junius Director Open-market sale $845K 1,200 sh at $704.07

Showing every filing. Dashed circles are routine: grants, tax withholding, option exercises and planned sales.

Congress · last 12 months

Members of Congress who traded IDXX

All Congress trades

IDXX IDEXX Laboratories, Inc. - Common Stock April McClain Delaney MD-6 · Child Sale $1,001 – $15,000 Traded Jan 13, 2026 Reported Feb 2, 2026

IDXX IDEXX Laboratories, Inc. - Common Stock April McClain Delaney MD-6 · Child Partial sale $1,001 – $15,000 Traded Dec 2, 2025 Reported Jan 5, 2026

Amounts are the ranges members report, not exact amounts. Reports can come up to 45 days after the trade. From House and Senate STOCK Act reports. This is data, not advice.

Top holders

Biggest funds in IDXX

As of Jun 30, 2026

Fund	Value	Change
BlackRock, Inc.	$4.3B	−2%
Vanguard Capital Management LLC	$2.71B	−1%
Vanguard Portfolio Management LLC	$2.05B	Same
State Street Corp	$1.97B	+2%
Invesco Ltd.	$1.9B	+115%