IDEXX Laboratories Inc
IDXX- Exchange
- Nasdaq
- Industry
- In Vitro & In Vivo Diagnostic Substances
- SEC CIK
- 0000874716
In the last 90 days, IDEXX Laboratories Inc insiders filed 0 open-market purchases and 1 sale; 1,306 institutions reported holding it in 13F filings for Q2 2026, worth $39.1B in total; 3 superinvestors hold it, including Fundsmith and Weitz Investment Management.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by IDEXX Laboratories Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 1 filing
- 1 insider, $1.17M in total
- Insiders trading
- 1
- Net value
- −$1.17M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for IDEXX Laboratories Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Kingsley Lawrence D | Director | 9,568 | Sep 9, 2026 | 3 |
| Emerson Andrew | EVP, CFO and Treasurer | 4,421 | Aug 24, 2026 | 2 |
| Hooley Joseph L | Director | 325 | Aug 3, 2026 | 6 |
| Fennell George | Executive Vice President | 10,433 | Jun 2, 2026 | 3 |
| Junius Daniel M | Director | 3,561 | May 14, 2026 | 2 |
| Essig Stuart | Director | 2,236 | May 14, 2026 | 1 |
| Claflin Bruce L. | Director | 161 | May 14, 2026 | 1 |
| Vandebroek Sophie V. | Director | 905 | May 14, 2026 | 3 |
| Britt Irene Chang | Director | 208 | May 14, 2026 | 1 |
| Samad Sam | Director | – | May 14, 2026 | 1 |
| Peacock Karen | Director | 102 | May 14, 2026 | 3 |
| Szostak M Anne | Director | 519 | May 11, 2026 | 1 |
| Underberg Sharon E. | EVP, GC & Corporate Secretary | 7,138 | Mar 5, 2026 | 2 |
| Hunt Nimrata | Executive Vice President | 18,141 | Mar 5, 2026 | 4 |
| Erickson Michael G | Executive Vice President | 12,693 | Mar 3, 2026 | 2 |
| Mazelsky Jonathan Jay | President and CEO | 83,803 | Mar 2, 2026 | 2 |
| Smith Martin Alexander | Executive Vice President | 2,157 | Feb 17, 2026 | 1 |
| Lane Michael | Executive Vice President | 8,024 | Feb 17, 2026 | 1 |
| Johnson Michael Perkins | Executive Vice President | 2,795 | Feb 17, 2026 | 1 |
| Schreck Michael | Executive Vice President | 3,089 | Feb 17, 2026 | 1 |
| McKeon Brian P | EVP, CFO and Treasurer | 31,550 | Feb 18, 2025 | 0 |
| Ayers Jonathan W | Director | 122,605Indirect | Sep 9, 2024 | 0 |
| COLLINS Asha | Director | 779 | May 8, 2024 | 0 |
| Polewaczyk James F | Executive Vice President | 10,711 | Mar 7, 2024 | 0 |
| Turner Kathy V | Senior Vice President | 7,380 | Feb 17, 2023 | 0 |
| Twigge Giovani | Senior Vice President | 20,329 | Feb 25, 2022 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 12, 2025 (view filing) | Aug 8 | 4 days | Underberg Sharon E.EVP, GC & Corporate Secretary | SSale | −5.45K | $651.60 | −$3.55M | −47.0%6.16K after | |
| Aug 13, 2025 (view filing) | Aug 11 | 2 days | Hunt NimrataExecutive Vice President | SSale | −1.20K | $656.53 | −$787.8K | −6.7%16.8K after | |
| Aug 14, 2025 (view filing) | Aug 12 | 2 days | Erickson Michael GExecutive Vice President | SSale | −405.89 | $649.96 | −$263.8K | −3.5%11.3K after | 2 lots |
| Aug 26, 2025 (view filing) | Aug 22 | 4 days | Szostak M AnneDirector | SSale | −2.19K | $647.33 | −$1.42M | −89.3%262 after | |
| Nov 10, 2025 (view filing) | Nov 7 | 3 days | Hunt NimrataExecutive Vice President | SSale | −9.43K | $703.34 | −$6.63M | −30.8%21.1K after | 4 lots |
| Feb 11, 2026 (view filing) | Feb 10 | 1 day | Fennell GeorgeExecutive Vice President | SSale | −11.3K | $646.72 | −$7.34M | −53.6%9.82K after | 8 lots |
| Feb 19, 2026 (view filing) | Feb 17 | 2 days | Vandebroek Sophie V.Director | SSale | −1.46K | $628.62 | −$920.3K | −69.3%648 after | 2 lots |
| Feb 19, 2026 (view filing) | Feb 17 | 2 days | Erickson Michael GExecutive Vice President | SSale | −5.37K | $627.38 | −$3.37M | −29.7%12.7K after | 6 lots |
| Feb 27, 2026 (view filing) | Feb 26 | 1 day | Hunt NimrataExecutive Vice President | SSale | −2.69K | $661.54 | −$1.78M | −11.9%19.9K after | |
| Mar 2, 2026 (view filing) | Feb 26 | 4 days | Mazelsky Jonathan JayPresident and CEO | SSale | −23.3K | $657.55 | −$15.3M | −21.8%83.6K after | 13 lots |
| Mar 5, 2026 (view filing) | Mar 3 | 2 days | Hunt NimrataExecutive Vice President | SSale | −1.76K | $634.57 | −$1.12M | −8.8%18.1K after | |
| Sep 9, 2026 (view filing)5:00 PM ET | Sep 4 | 5 days | Kingsley Lawrence DDirector | SSale | −2.20K | $532.08 | −$1.17M | −18.7%9.57K after |