IDEXX LABORATORIES INC /DE (IDXX) Insider Transactions
Over the last 12 months, 20 IDEXX LABORATORIES INC /DE (IDXX) insiders filed 291 SEC Form 4 transactions — $0 in open-market purchases ( 0 distinct buyers) and $70.8M in open-market sales. 0% of all transactions were executed under a pre-scheduled Rule 10b5-1 trading plan.
- $0Open-market buys (1y)
- $70.8MOpen-market sells (1y)
- 20Distinct insiders
- 291Transactions filed
- 0%Under Rule 10b5-1 plan
- 2026-06-01Latest filing
Recent Form 4 Filings Most recent 50 of 291 (1-year window)
Each row is a single Form 4 filing event for IDXX, sourced directly from SEC EDGAR. The Type column classifies the SEC transaction code into Buy / Sell / Grant / Exercise / Other; the 10b5-1 badge marks trades executed under a pre-scheduled SEC Rule 10b5-1 plan.
| Date | Insider | Title | Type | SEC Code | Value | Shares | Price |
|---|---|---|---|---|---|---|---|
| 2026-06-01 | FENNELL GEORGE | Executive Vice President | Exercise | M | $0 | 639 | $0.00 |
| 2026-06-01 | FENNELL GEORGE | Executive Vice President | Exercise | M | $0 | 639 | — |
| 2026-06-01 | FENNELL GEORGE | Executive Vice President | Other | F | $161.0K | 284 | $566.79 |
| 2026-05-12 | Vandebroek Sophie V. | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | Vandebroek Sophie V. | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | SAMAD SAM | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | SAMAD SAM | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | Peacock Karen | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | Peacock Karen | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | Kingsley Lawrence D | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | Kingsley Lawrence D | — | Grant | A | $0 | 168 | $0.00 |
| 2026-05-12 | Kingsley Lawrence D | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | Kingsley Lawrence D | — | Grant | A | $0 | 75 | $0.00 |
| 2026-05-12 | JUNIUS DANIEL M | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | JUNIUS DANIEL M | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | HOOLEY JOSEPH L | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | HOOLEY JOSEPH L | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | ESSIG STUART | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | ESSIG STUART | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | Claflin Bruce L. | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | Claflin Bruce L. | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-12 | Britt Irene Chang | — | Grant | A | $0 | 525 | $0.00 |
| 2026-05-12 | Britt Irene Chang | — | Grant | A | $0 | 234 | $0.00 |
| 2026-05-07 | Vandebroek Sophie V. | — | Exercise | M | $0 | 257 | $0.00 |
| 2026-05-07 | Vandebroek Sophie V. | — | Exercise | M | $0 | 257 | — |
| 2026-05-07 | SZOSTAK M ANNE | — | Exercise | M | $0 | 257 | $0.00 |
| 2026-05-07 | SZOSTAK M ANNE | — | Exercise | M | $0 | 257 | — |
| 2026-05-07 | Peacock Karen | — | Exercise | M | $0 | 101 | $0.00 |
| 2026-05-07 | Peacock Karen | — | Exercise | M | $0 | 101 | — |
| 2026-05-07 | Kingsley Lawrence D | — | Exercise | M | $0 | 257 | $0.00 |
| 2026-05-07 | Kingsley Lawrence D | — | Exercise | M | $0 | 82 | $0.00 |
| 2026-05-07 | Kingsley Lawrence D | — | Exercise | M | $0 | 257 | — |
| 2026-05-07 | Kingsley Lawrence D | — | Exercise | M | $0 | 82 | — |
| 2026-05-07 | JUNIUS DANIEL M | — | Exercise | M | $0 | 257 | $0.00 |
| 2026-05-07 | JUNIUS DANIEL M | — | Exercise | M | $0 | 257 | — |
| 2026-05-07 | HOOLEY JOSEPH L | — | Exercise | M | $0 | 158 | $0.00 |
| 2026-05-07 | HOOLEY JOSEPH L | — | Exercise | M | $0 | 158 | — |
| 2026-04-30 | HOOLEY JOSEPH L | — | Grant | A | $24.1K | 43 | $560.80 |
| 2026-03-03 | Underberg Sharon E. | EVP, GC & Corporate Secretary | Grant | — | $99.6K | 197 | $505.53 |
| 2026-03-03 | Underberg Sharon E. | EVP, GC & Corporate Secretary | Grant | — | $0 | 197 | — |
| 2026-03-03 | Hunt Nimrata | Executive Vice President | Sell | — | $1.1M | 1,758 | $634.57 |
| 2026-02-27 | MAZELSKY JONATHAN JAY | President and CEO | Grant | — | $99.6K | 197 | $505.53 |
| 2026-02-27 | MAZELSKY JONATHAN JAY | President and CEO | Grant | — | $0 | 197 | $0.00 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Grant | — | $3.3M | 23,326 | $141.60 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Grant | — | $0 | 23,326 | $0.00 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Sell | — | $833.5K | 1,281 | $650.67 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Sell | — | $713.4K | 1,095 | $651.49 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Sell | — | $1.1M | 1,669 | $652.49 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Sell | — | $765.5K | 1,171 | $653.68 |
| 2026-02-26 | MAZELSKY JONATHAN JAY | President and CEO | Sell | — | $727.3K | 1,111 | $654.63 |
Showing the most recent 50 of 291 transactions. For the full 1-year history with sorting, filtering, and cross-ticker industry context, open the full insider transactions drilldown.
Methodology & FAQ
How We Track IDXX Insider Transactions
Form 4 disclosures are sourced directly from SEC EDGAR and re-ingested on every pipeline cycle. A complete description of transaction-code handling, the open-market vs grant distinction, and the Rule 10b5-1 plan-reference heuristic is documented in the Methodology.
What is an SEC Form 4 filing for IDEXX LABORATORIES INC /DE?
Form 4 is a transaction-level disclosure that corporate insiders — officers, directors, and beneficial owners of more than 10% of a registered class of equity securities — must file with the SEC within two business days of any change in their beneficial ownership of IDEXX LABORATORIES INC /DE (IDXX) shares.
What is a Rule 10b5-1 trading plan?
Rule 10b5-1 is an SEC rule that lets insiders schedule trades in advance under a written plan, providing an affirmative defense against insider-trading allegations as long as the plan was adopted in good faith and not while in possession of material non-public information. Form 4 rows marked "10b5-1" on this page indicate the underlying trade was executed under such a plan; rows without the badge are discretionary or did not reference a plan in the Form 4 footnotes.
How is "insider buying" different from a stock grant or option exercise?
An insider buy (SEC transaction code P) is an open-market purchase of IDEXX LABORATORIES INC /DE (IDXX) stock executed at the prevailing market price using the insider's personal capital. Stock grants (code A) and option exercises (code M) are compensation events, not directional trades; they are tracked separately and excluded from the "conviction" signal because they are not discretionary purchases.
How recent is the data?
Form 4 transactions are typically reported within two business days of execution. Pactolio re-ingests the EDGAR feed on a nightly cycle and reflects new filings on the next ingest run, typically within 24 hours of EDGAR acceptance. The table on this page covers the most recent 1-year window.