IDEXX Laboratories Inc. planned insider sales
In the twelve months since 23 September 2025 insiders at IDEXX Laboratories Inc. filed 9 Form 144 notices of planned sales, 58,929 shares worth $38.4 million at the time of filing, from 7 sellers. The latest, filed 4 September 2026: Lawrence D Kingsley (director), 2,203 shares worth $1.2 million, planned for around 4 September 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.
| Filed | Seller | Relationship | Shares | Value | Planned sale | Broker | How acquired | Filing |
|---|---|---|---|---|---|---|---|---|
| 4 September 2026 | Lawrence D Kingsley | Director | 2,203 | $1.2 million | 4 September 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Stock Option Exercise | Form 144 |
| 20 May 2026 | Margaret Anne Szostak | Director | 1,344 | $744,012 | 20 May 2026 | Goldman Sachs & Co. LLC | Restricted Stock Units | Form 144 |
| 3 March 2026 | Nimrata K Hunt | Officer | 1,758 | $1.1 million | 3 March 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Exercised Shares | Form 144 |
| 26 February 2026 | Jonathan J Mazelsky | Officer, Director | 23,326 | $15.3 million | 26 February 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Stock Option Exercise | Form 144 |
| 25 February 2026 | Nimrata K Hunt | Officer | 2,693 | $1.8 million | 25 February 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Exercised Shares | Form 144 |
| 17 February 2026 | Sophie V Vandebroek | Director | 1,464 | $920,293 | 17 February 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Restricted Stock; Stock Option Exercise | Form 144 |
| 17 February 2026 | Michael G Erickson | Officer | 5,371 | $3.4 million | 17 February 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Stock Option Exercise | Form 144 |
| 10 February 2026 | George Fennell | Officer | 11,345 | $7.3 million | 10 February 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | Stock Option Exercise | Form 144 |
| 7 November 2025 | Nimrata K Hunt | Officer | 9,425 | $6.6 million | 7 November 2025 | Morgan Stanley Smith Barney LLC Executive Financial Services | Stock Option Exercise | Form 144 |
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was. Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.
Source
Form 144 filings on EDGAR for IDEXX Laboratories Inc.: the company's filing index, each notice read from its own XML.
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