IDXX Idexx Laboratories
Nasdaq · SEC CIK 874716 · EDGAR
- Bought, last 12 months
- $0 0 purchases by 0 insiders
- Sold, last 12 months
- $37.66M 8 sales by 6 insiders
- Filings on record
- 261 since 2021-08-03, latest 2026-09-09 17:00
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| MAZELSKY JONATHAN JAY | Pres, CEO, Dir | — | $15.34M |
| Hunt Nimrata | EVP | — | $9.53M |
| FENNELL GEORGE | EVP | — | $7.34M |
| Erickson Michael G | EVP | — | $3.37M |
| Kingsley Lawrence D | Dir | — | $1.17M |
| Vandebroek Sophie V. | Dir | — | $920.3K |
| Emerson Andrew | EVP, CFO, Treas | — | — |
| Schreck Michael | EVP | — | — |
| Johnson Michael Perkins | EVP | — | — |
| Peacock Karen | Dir | — | — |
Transactions 344
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-02-18 | 2025-02-14 | IDXX | Erickson Michael G | EVP | F - Tax | $444.53 | -177 | 21.2K | -0.8% | -$78.7K |
| DM | 2025-02-18 | 2025-02-14 | IDXX | Schreck Michael | EVP | M - OptEx | $0.00 | +1,459 | 2,397 | +156% | $0 |
| D | 2025-02-18 | 2025-02-14 | IDXX | Schreck Michael | EVP | F - Tax | $444.53 | -441 | 1,956 | -18% | -$196.0K |
| D | 2025-02-12 | 2025-02-11 | IDXX | Erickson Michael G | EVP | M - OptEx | $67.85 | +1,544 | 20.8K | +8% | +$104.8K |
| DM | 2025-02-11 | 2025-02-07+ | IDXX | FENNELL GEORGE | EVP | M - OptEx | $79.54 | +11.2K | 8,176 | New | +$894.2K |
| D | 2025-02-11 | 2025-02-10 | IDXX | FENNELL GEORGE | EVP | S - Sale+OE | $462.53 | -9,986 | 8,176 | -55% | -$4.62M |
| I | 2025-02-10 | 2025-02-07 | IDXX | SZOSTAK M ANNE | Dir | S - Sale | $465.95 | -3,000 | 3,061 | -49% | -$1.40M |
| 2024-11-29 | 2024-11-27 | IDXX | Vandebroek Sophie V. | Dir | S - Sale | $420.44 | -344 | 905 | -28% | -$144.6K | |
| 2024-11-29 | 2024-11-27 | IDXX | Vandebroek Sophie V. | Dir | G - Gift | $0.00 | -224 | 1,249 | -15% | $0 | |
| I | 2024-09-09 | 2024-09-06 | IDXX | SZOSTAK M ANNE | Dir | S - Sale | $469.37 | -500 | 0 | -100% | -$234.7K |
| MI | 2024-09-09 | 2024-09-05 | IDXX | SZOSTAK M ANNE | Dir | G - Gift | $0.00 | 0 | 6,061 | New | $0 |
| MI | 2024-09-09 | 2024-09-06 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | +230.0K | 0 | New | $0 |
| 2024-09-09 | 2024-09-06 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -230.0K | 35.7K | -87% | $0 | |
| D | 2024-09-04 | 2024-09-01 | IDXX | Smith Martin Alexander | EVP | M - OptEx | $0.00 | +18 | 514.95 | +4% | $0 |
| D | 2024-09-04 | 2024-09-01 | IDXX | Smith Martin Alexander | EVP | F - Tax | $481.33 | -5 | 509.95 | -1.0% | -$2,407 |
| D | 2024-09-04 | 2024-09-01 | IDXX | Schreck Michael | EVP | M - OptEx | $0.00 | +164 | 961 | +21% | $0 |
| D | 2024-09-04 | 2024-09-01 | IDXX | Schreck Michael | EVP | F - Tax | $481.33 | -48 | 913 | -5% | -$23.1K |
| D | 2024-08-07 | 2024-08-05 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | F - Tax | $455.08 | -170 | 81.7K | -0.2% | -$77.4K |
| D | 2024-08-07 | 2024-08-05 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $0.00 | +384 | 81.9K | +0.5% | $0 |
| D | 2024-08-07 | 2024-08-05 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | M - OptEx | $0.00 | +192 | 31.0K | +0.6% | $0 |
| D | 2024-08-07 | 2024-08-05 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | F - Tax | $455.08 | -117 | 30.9K | -0.4% | -$53.2K |
| 2024-05-20 | 2024-05-17 | IDXX | Claflin Bruce L. | Dir | S - Sale | $540.80 | -200 | 161 | -55% | -$108.2K | |
| D | 2024-05-08 | 2024-05-06 | IDXX | AYERS JONATHAN W | Dir | M - OptEx | $0.00 | +257 | 265.7K | +0.1% | $0 |
| D | 2024-05-08 | 2024-05-06 | IDXX | ESSIG STUART | Dir | M - OptEx | $0.00 | +257 | 1,974 | +15% | $0 |
| D | 2024-05-08 | 2024-05-06 | IDXX | Britt Irene Chang | Dir | M - OptEx | $0.00 | +208 | 208 | New | $0 |
| DM | 2024-05-08 | 2024-05-06 | IDXX | Kingsley Lawrence D | Dir | M - OptEx | $0.00 | +339 | 8,883 | +4% | $0 |
| DI | 2024-05-08 | 2024-05-08 | IDXX | SZOSTAK M ANNE | Dir | G - Gift | $0.00 | +257 | 6,561 | +4% | $0 |
| D | 2024-05-08 | 2024-05-06 | IDXX | SZOSTAK M ANNE | Dir | M - OptEx | $0.00 | +257 | 257 | New | $0 |
| D | 2024-05-08 | 2024-05-08 | IDXX | SZOSTAK M ANNE | Dir | G - Gift | $0.00 | -257 | 0 | -100% | $0 |
| D | 2024-05-08 | 2024-05-06 | IDXX | Vandebroek Sophie V. | Dir | M - OptEx | $0.00 | +257 | 1,473 | +21% | $0 |
| D | 2024-05-08 | 2024-05-06 | IDXX | COLLINS Asha | Dir | M - OptEx | $0.00 | +257 | 779 | +49% | $0 |
| DM | 2024-03-07 | 2024-03-06 | IDXX | POLEWACZYK JAMES F | EVP | S - Sale+OE | $558.44 | -8,104 | 10.7K | -43% | -$4.53M |
| DM | 2024-03-07 | 2024-03-06 | IDXX | POLEWACZYK JAMES F | EVP | M - OptEx | $422.45 | +8,104 | 11.5K | +241% | +$3.42M |
| D | 2024-03-07 | 2024-03-05 | IDXX | Vandebroek Sophie V. | Dir | M - OptEx | $245.79 | +1,404 | 2,620 | +115% | +$345.1K |
| D | 2024-03-07 | 2024-03-05 | IDXX | Vandebroek Sophie V. | Dir | S - Sale+OE | $562.98 | -1,404 | 1,216 | -54% | -$790.4K |
| 2024-03-04 | 2024-02-29 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | G - Gift | $0.00 | -550 | 81.5K | -0.7% | $0 | |
| D | 2024-02-22 | 2024-02-21 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $206.94 | +483 | 82.0K | +0.6% | +$100.0K |
| D | 2024-02-20 | 2024-02-16 | IDXX | Underberg Sharon E. | EVP, GC, Corp. Sec | M - OptEx | $206.94 | +483 | 5,595 | +9% | +$100.0K |
| D | 2024-02-20 | 2024-02-15 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | M - OptEx | $206.94 | +483 | 30.8K | +2% | +$100.0K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Erickson Michael G | EVP | M - OptEx | $0.00 | +462 | 10.4K | +5% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Erickson Michael G | EVP | F - Tax | $560.56 | -144 | 10.7K | -1% | -$80.7K |
| D | 2024-02-16 | 2024-02-14 | IDXX | Schreck Michael | EVP | F - Tax | $560.56 | -117 | 786 | -13% | -$65.6K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Schreck Michael | EVP | M - OptEx | $0.00 | +368 | 615 | +149% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Smith Martin Alexander | EVP | F - Tax | $560.56 | -108 | 474.95 | -19% | -$60.5K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Smith Martin Alexander | EVP | M - OptEx | $0.00 | +337 | 582.95 | +137% | $0 |
| DM | 2024-02-16 | 2024-02-14 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | M - OptEx | $0.00 | +1,731 | 30.2K | +6% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | F - Tax | $560.56 | -1,097 | 30.4K | -3% | -$614.9K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Underberg Sharon E. | EVP, GC, Corp. Sec | A - Grant | $0.00 | +1,186 | 5,292 | +29% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Underberg Sharon E. | EVP, GC, Corp. Sec | F - Tax | $560.56 | -356 | 5,112 | -7% | -$199.6K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Lane Michael | EVP | M - OptEx | $0.00 | +939 | 6,726 | +16% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Lane Michael | EVP | F - Tax | $560.56 | -283 | 6,443 | -4% | -$158.6K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | FENNELL GEORGE | SVP, Chief Revenue Off | M - OptEx | $0.00 | +370 | 6,820 | +6% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | FENNELL GEORGE | SVP, Chief Revenue Off | F - Tax | $560.56 | -162 | 6,920 | -2% | -$90.8K |
| D | 2024-02-16 | 2024-02-14 | IDXX | Hunt Nimrata | EVP | A - Grant | $0.00 | +208 | 11.9K | +2% | $0 |
| DM | 2024-02-16 | 2024-02-14 | IDXX | Hunt Nimrata | EVP | M - OptEx | $0.00 | +664 | 11.2K | +6% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Hunt Nimrata | EVP | F - Tax | $560.56 | -263 | 11.7K | -2% | -$147.4K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | POLEWACZYK JAMES F | EVP | M - OptEx | $0.00 | +927 | 11.0K | +9% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | POLEWACZYK JAMES F | EVP | F - Tax | $560.56 | -279 | 10.7K | -3% | -$156.4K |
| D | 2024-02-16 | 2024-02-14 | IDXX | Johnson Michael Perkins | EVP, CHRO | M - OptEx | $0.00 | +176 | 243.34 | +261% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | Johnson Michael Perkins | EVP, CHRO | F - Tax | $560.56 | -60 | 183.34 | -25% | -$33.6K |
| DM | 2024-02-16 | 2024-02-14 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $0.00 | +4,156 | 79.7K | +6% | $0 |
| D | 2024-02-16 | 2024-02-14 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | F - Tax | $560.56 | -1,839 | 81.6K | -2% | -$1.03M |
| 2024-02-12 | 2024-02-09 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -5,350 | 265.4K | -2% | $0 | |
| DM | 2024-02-09 | 2024-02-07 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | S - Sale+OE | $570.01 | -23.3K | 47.1K | -33% | -$13.30M |
| D | 2024-02-09 | 2024-02-07 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | M - OptEx | $141.60 | +23.3K | 53.0K | +78% | +$3.30M |
| M | 2024-02-09 | 2024-02-07+ | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -1,850 | 270.7K | -0.7% | $0 |
| DM | 2024-02-09 | 2024-02-07 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | S - Sale+OE | $572.61 | -12.0K | 81.8K | -13% | -$6.87M |
| D | 2024-02-09 | 2024-02-07 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $67.85 | +12.0K | 91.2K | +15% | +$814.2K |
| DM | 2024-02-09 | 2024-02-08 | IDXX | FENNELL GEORGE | SVP, Chief Revenue Off | S - Sale+OE | $573.87 | -8,198 | 7,124 | -54% | -$4.70M |
| DM | 2024-02-09 | 2024-02-08 | IDXX | FENNELL GEORGE | SVP, Chief Revenue Off | M - OptEx | $62.00 | +9,810 | 6,712 | New | +$608.2K |
| 2024-02-01 | 2024-01-30 | IDXX | JUNIUS DANIEL M | Dir | A - Grant | $521.03 | +14 | 3,042 | +0.5% | +$7,294 | |
| DM | 2023-12-08 | 2023-12-07 | IDXX | POLEWACZYK JAMES F | EVP | M - OptEx | $253.92 | +11.6K | 21.7K | +116% | +$2.95M |
| DM | 2023-12-08 | 2023-12-07 | IDXX | POLEWACZYK JAMES F | EVP | S - Sale+OE | $521.79 | -11.6K | 15.2K | -43% | -$6.07M |
| D | 2023-12-06 | 2023-12-04 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $79.54 | +13.4K | 86.4K | +18% | +$1.07M |
| DM | 2023-12-06 | 2023-12-04 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | S - Sale+OE | $513.05 | -7,128 | 79.2K | -8% | -$3.66M |
| 2023-12-06 | 2023-12-04 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -2,424 | 272.6K | -0.9% | $0 | |
| 2023-12-01 | 2023-11-29 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -1,850 | 275.0K | -0.7% | $0 | |
| 2023-11-22 | 2023-11-20 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -2,506 | 276.9K | -0.9% | $0 | |
| 2023-11-16 | 2023-11-15 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -2,494 | 279.4K | -0.9% | $0 | |
| DM | 2023-11-08 | 2023-11-07 | IDXX | Lane Michael | EVP | M - OptEx | $133.76 | +1,728 | 5,214 | +50% | +$231.1K |
| 2023-11-01 | 2023-10-30 | IDXX | JUNIUS DANIEL M | Dir | A - Grant | $396.39 | +19 | 3,028 | +0.6% | +$7,531 | |
| 2023-09-08 | 2023-09-06 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | +147.8K | 281.9K | +110% | $0 | |
| I | 2023-09-08 | 2023-09-06 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -147.8K | 302.2K | -33% | $0 |
| D | 2023-09-06 | 2023-09-01 | IDXX | Smith Martin Alexander | EVP | M - OptEx | $0.00 | +19 | 225.70 | +9% | $0 |
| D | 2023-09-06 | 2023-09-01 | IDXX | Smith Martin Alexander | EVP | F - Tax | $511.29 | -5 | 220.70 | -2% | -$2,556 |
| M | 2023-09-05 | 2023-08-31+ | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -1,500 | 134.0K | -1% | $0 |
| D | 2023-09-05 | 2023-08-31 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $79.54 | +13.4K | 86.3K | +18% | +$1.07M |
| D | 2023-09-05 | 2023-08-31 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | S - Sale+OE | $512.01 | -13.4K | 72.9K | -16% | -$6.87M |
| DM | 2023-08-31 | 2023-08-29 | IDXX | POLEWACZYK JAMES F | EVP | S - Sale+OE | $510.56 | -22.9K | 32.4K | -41% | -$11.70M |
| DM | 2023-08-31 | 2023-08-29 | IDXX | POLEWACZYK JAMES F | EVP | M - OptEx | $144.21 | +16.9K | 19.4K | +687% | +$2.44M |
| 2023-08-17 | 2023-08-15 | IDXX | AYERS JONATHAN W | Dir | S - Sale | $0.00 | -492 | 135.5K | -0.4% | $0 | |
| 2023-08-14 | 2023-08-11 | IDXX | AYERS JONATHAN W | Dir | G - Gift | $0.00 | -1,000 | 136.0K | -0.7% | $0 | |
| D | 2023-08-08 | 2023-08-05 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | F - Tax | $504.08 | -170 | 72.9K | -0.2% | -$85.7K |
| D | 2023-08-08 | 2023-08-05 | IDXX | MAZELSKY JONATHAN JAY | Pres, CEO, Dir | M - OptEx | $0.00 | +384 | 73.1K | +0.5% | $0 |
| D | 2023-08-08 | 2023-08-05 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | M - OptEx | $0.00 | +192 | 29.8K | +0.6% | $0 |
| D | 2023-08-08 | 2023-08-05 | IDXX | MCKEON BRIAN P | EVP, CFO, Treas | F - Tax | $504.08 | -117 | 29.7K | -0.4% | -$59.0K |
| D | 2023-08-07 | 2023-08-03 | IDXX | Lane Michael | EVP | S - Sale+OE | $510.00 | -16.0K | 4,034 | -80% | -$8.17M |
| DM | 2023-08-07 | 2023-08-03 | IDXX | Lane Michael | EVP | M - OptEx | $187.47 | +16.0K | 5,546 | New | +$3.00M |
| 2023-08-01 | 2023-07-28 | IDXX | JUNIUS DANIEL M | Dir | A - Grant | $552.78 | +14 | 3,009 | +0.5% | +$7,739 | |
| DM | 2023-05-22 | 2023-05-18+ | IDXX | AYERS JONATHAN W | Dir | M - OptEx | $79.54 | +20.0K | 147.0K | +16% | +$1.59M |
Purchase Sale Sale after option exercise All abbreviations