IDEXX LABORATORIES INC /DE — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| POLEWACZYK JAMES F | Executive Vice President | Option Exercise | 755 | $206.94 | $156,240 | 11,466 | Mar 6, 2024 |
| Vandebroek Sophie V. | — | Sale | 1,404 | $562.98 | $790,424 | 1,216 | Mar 5, 2024 |
| MAZELSKY JONATHAN JAY | President and CEO | Gift | 550 | — | — | 81,497 | Feb 29, 2024 |
| MAZELSKY JONATHAN JAY | President and CEO | Option Exercise | 483 | $206.94 | $99,952 | 82,047 | Feb 21, 2024 |
| Underberg Sharon E. | EVP, GC & Corporate Secretary | Option Exercise | 483 | $206.94 | $99,952 | 5,595 | Feb 16, 2024 |
| MCKEON BRIAN P | EVP, CFO and Treasurer | Option Exercise | 483 | $206.94 | $99,952 | 30,835 | Feb 15, 2024 |
| Underberg Sharon E. | EVP, GC & Corporate Secretary | Award / Grant | 173 | — | — | 5,292 | Feb 14, 2024 |
| Smith Martin Alexander | Executive Vice President | Option Exercise | 189 | — | — | 583 | Feb 14, 2024 |
| Schreck Michael | Executive Vice President | Option Exercise | 80 | — | — | 615 | Feb 14, 2024 |
| POLEWACZYK JAMES F | Executive Vice President | Option Exercise | 220 | — | — | 10,990 | Feb 14, 2024 |
| MCKEON BRIAN P | EVP, CFO and Treasurer | Option Exercise | 435 | — | — | 30,153 | Feb 14, 2024 |
| MAZELSKY JONATHAN JAY | President and CEO | Tax Withholding | 1,839 | $560.56 | $1,030,870 | 81,564 | Feb 14, 2024 |
| Lane Michael | Executive Vice President | Tax Withholding | 283 | $560.56 | $158,638 | 6,443 | Feb 14, 2024 |
| Johnson Michael Perkins | EVP and CHRO | Tax Withholding | 60 | $560.56 | $33,634 | 183 | Feb 14, 2024 |
| Hunt Nimrata | Executive Vice President | Tax Withholding | 263 | $560.56 | $147,427 | 11,676 | Feb 14, 2024 |
| FENNELL GEORGE | SVP, Chief Revenue Officer | Tax Withholding | 162 | $560.56 | $90,811 | 6,920 | Feb 14, 2024 |
| Erickson Michael G | Executive Vice President | Option Exercise | 108 | — | — | 10,447 | Feb 14, 2024 |
| AYERS JONATHAN W | — | Gift | 5,350 | — | — | 265,394 | Feb 9, 2024 |
| FENNELL GEORGE | SVP, Chief Revenue Officer | Sale | 3,173 | $575.02 | $1,824,538 | 7,124 | Feb 8, 2024 |
| AYERS JONATHAN W | — | Gift | 850 | — | — | 270,744 | Feb 7, 2024 |
| MCKEON BRIAN P | EVP, CFO and Treasurer | Sale | 1,469 | $568.84 | $835,626 | 47,114 | Feb 7, 2024 |
| MAZELSKY JONATHAN JAY | President and CEO | Sale | 4,124 | $572.53 | $2,361,114 | 81,767 | Feb 7, 2024 |
| JUNIUS DANIEL M | — | Award / Grant | 14 | $521.03 | $7,294 | 3,042 | Jan 30, 2024 |
| POLEWACZYK JAMES F | Executive Vice President | Sale | 3,378 | $521.00 | $1,759,938 | 15,192 | Dec 7, 2023 |
| MAZELSKY JONATHAN JAY | President and CEO | Sale | 1,324 | $513.51 | $679,887 | 79,233 | Dec 4, 2023 |
| AYERS JONATHAN W | — | Gift | 2,424 | — | — | 272,594 | Dec 4, 2023 |
| AYERS JONATHAN W | — | Gift | 1,850 | — | — | 275,018 | Nov 29, 2023 |
| AYERS JONATHAN W | — | Gift | 2,506 | — | — | 276,868 | Nov 20, 2023 |
| AYERS JONATHAN W | — | Gift | 2,494 | — | — | 279,374 | Nov 15, 2023 |
| Lane Michael | Executive Vice President | Option Exercise | 706 | $141.60 | $99,970 | 5,214 | Nov 7, 2023 |
| JUNIUS DANIEL M | — | Award / Grant | 19 | $396.39 | $7,531 | 3,028 | Oct 30, 2023 |
| AYERS JONATHAN W | — | Gift | 147,821 | — | — | 302,179 | Sep 6, 2023 |
| Smith Martin Alexander | Executive Vice President | Tax Withholding | 5 | $511.29 | $2,556 | 221 | Sep 1, 2023 |
| MAZELSKY JONATHAN JAY | President and CEO | Sale | 13,424 | $512.01 | $6,873,222 | 72,925 | Aug 31, 2023 |
| AYERS JONATHAN W | — | Gift | 250 | — | — | 134,047 | Aug 31, 2023 |
| POLEWACZYK JAMES F | Executive Vice President | Option Exercise | 706 | $141.60 | $99,970 | 19,371 | Aug 29, 2023 |
| AYERS JONATHAN W | — | Sale | 492 | — | — | 135,547 | Aug 15, 2023 |
| AYERS JONATHAN W | — | Gift | 1,000 | — | — | 136,039 | Aug 11, 2023 |
| MCKEON BRIAN P | EVP, CFO and Treasurer | Tax Withholding | 117 | $504.08 | $58,977 | 29,692 | Aug 5, 2023 |
| MAZELSKY JONATHAN JAY | President and CEO | Option Exercise | 384 | — | — | 73,095 | Aug 5, 2023 |
| Lane Michael | Executive Vice President | Option Exercise | 1,512 | $141.60 | $214,099 | 5,546 | Aug 3, 2023 |
| JUNIUS DANIEL M | — | Award / Grant | 14 | $552.78 | $7,739 | 3,009 | Jul 28, 2023 |
| AYERS JONATHAN W | — | Sale | 2,242 | $489.71 | $1,097,930 | 140,032 | May 19, 2023 |
| MAZELSKY JONATHAN JAY | President and CEO | Gift | 602 | — | — | 72,699 | May 18, 2023 |
| AYERS JONATHAN W | — | Gift | 3,514 | — | — | 137,039 | May 15, 2023 |
| Vandebroek Sophie V. | — | Option Exercise | 344 | — | — | 1,216 | May 11, 2023 |
| SZOSTAK M ANNE | — | Option Exercise | 344 | — | — | 1,604 | May 11, 2023 |
| Kingsley Lawrence D | — | Option Exercise | 344 | — | — | 8,424 | May 11, 2023 |
| ESSIG STUART | — | Option Exercise | 344 | — | — | 1,717 | May 11, 2023 |
| COLLINS Asha | — | Option Exercise | 344 | — | — | 522 | May 11, 2023 |