Company profile

Idexx Laboratories Inc /de Insider Trading

IDXX

Every SEC Form 4 insider trading filing for Idexx Laboratories Inc /de (IDXX) since April 2023 — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?

Exchange
Nasdaq
Sector
In Vitro & In Vivo Diagnostic Substances
CIK
0000874716
Filings
165
Insiders
24
Last filing
2026-07-30
SEC EDGAR ↗Yahoo Finance ↗Finviz ↗Stock Analysis ↗

Activity summary

Recent insider activity is bullish. Over the last 30 days, 1 insider purchased shares (net $27K). Buying was led by Hooley Joseph L.

Three year balance

Buy and sell value by quarter, Q4 23 to Q3 26. Idexx Laboratories Inc /de insiders are net sellers across the period shown.

Q4 23Q1 24Q2 24Q3 24Q4 24Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26Q3 26

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $34.6M.

90 day insight

Over the last 90 days, Idexx Laboratories Inc /de insiders bought $27K (3 transactions) and sold $161K (1 transaction).

  • Most active insider: Fennell George with 3 transactions totaling $161K.
  • Largest single sale: $161K by Fennell George on Jun 1, 2026.

Activity skews bullish — buys outpace sales.

Insider Transactions

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

DateInsiderCompanyTypeSharesPriceValue
Jul 30, 2026Hooley Joseph LIDXX
Award
49$558.80$27K
Jun 1, 2026Fennell GeorgeIDXX
Option Exercise
639——
Jun 1, 2026Fennell GeorgeIDXX
Tax Withholding
284$566.79$161K
Jun 1, 2026Fennell GeorgeIDXX
Option Exercise
639——
May 12, 2026Claflin Bruce L.IDXX
Award
525——

45 more transactions hidden

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Top insiders

By total value filed.

Mazelsky Jonathan JayPresident and CEO6 filings−$7.5M
Hunt NimrataExecutive Vice President1 filing−$1.1M
Fennell GeorgeExecutive Vice President1 filing−$161K
Underberg Sharon E.EVP, GC & Corporate Secretary1 filing+$100K
Hooley Joseph LDirector2 filings+$51K

Institutional Ownership

Top 13F-HR holders of Idexx Laboratories Inc /de as of 2026-06-30

↓ decreasing
Total reported AUM
$12.74B
QoQ change
-64.2%
Reporting period
2026-06-30
#1
State Street Corp
CIK 0000093751
$1.97B
3.7M shares
#2
BlackRock, Inc.
CIK 0002012383
$1.86B
3.5M shares
#3
BlackRock, Inc.
CIK 0002012383
$854.8M
1.6M shares

Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →