IDXX Insider Trading
IDEXX LABORATORIES INC /DE | In Vitro & In Vivo Diagnostic Substances
Comprehensive Trading Performance Summary
The investment history of corporate insiders at IDEXX LABORATORIES INC /DE provides a unique lens into the internal conviction of the company's leadership. By analyzing SEC Form 4 filings, investors can track how directors and officers are allocating their own capital. High-conviction buying often signals that management believes the current market price significantly undervalues future growth prospects, while strategic selling might occur for personal liquidity or portfolio diversification. Monitoring these shifts in ownership is essential for understanding the alignment between management and shareholders in the In Vitro & In Vivo Diagnostic Substances sector.
Transactions on Chart
Open Full Chart| Filing Date | Trade Date | Reporting Person | Relationship | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|
| 2020-05-21 00:00 | 2020-05-18 | AYERS JONATHAN W | Director | SELL | $296.67 | 38,000 | $11,273,471 | 10,000 | -79.2% |
| 2020-05-16 00:03 | 2020-05-13 | HENDERSON REBECCA M | Director | OPT+S | $286.66 | 13,396 | $3,840,052 | 14,696 | 0.0% |
| 2020-05-14 00:02 | 2020-05-11 | AYERS JONATHAN W | Director | SELL | $295.17 | 50,000 | $14,758,300 | 48,000 | -51.0% |
| 2020-05-13 00:15 | 2020-05-11 | POLEWACZYK JAMES F | Officer - Executive Vice President | OPT+S | $298.85 | 16,264 | $4,860,516 | 17,772 | 0.0% |
| 2020-05-13 00:11 | 2020-05-08 | AYERS JONATHAN W | Director | OPT+S | $291.63 | 21,130 | $6,162,059 | 810,467 | 0.0% |
| 2020-05-09 00:00 | 2020-05-04 | AYERS JONATHAN W | Director | SELL | $281.07 | 39,600 | $11,130,404 | 98,000 | -28.8% |
| 2020-02-25 01:52 | 2020-02-20 | AYERS JONATHAN W | Director | OPT+S | $284.92 | 23,400 | $6,667,109 | 137,600 | 0.0% |
| 2020-02-25 01:51 | 2020-02-19 | AYERS JONATHAN W | Director | SELL | $293.62 | 39,143 | $11,493,156 | 809,861 | -4.6% |
| 2020-02-22 01:23 | 2020-02-19 | AYERS JONATHAN W | Director | SELL | $293.62 | 39,143 | $11,493,156 | 810,361 | -4.6% |
| 2020-02-21 01:28 | 2020-02-18 | Vandebroek Sophie V. | Director | OPT+S | $286.89 | 7,568 | $2,171,202 | 3,321 | 0.0% |
| 2020-02-21 01:27 | 2020-02-18 | SZOSTAK M ANNE | Director | OPT+S | $286.29 | 8,790 | $2,516,470 | 2,916 | 0.0% |
| 2020-02-21 01:26 | 2020-02-18 | AYERS JONATHAN W | Director | SELL | $286.84 | 40,000 | $11,473,580 | 849,004 | -4.5% |
| 2020-02-08 01:00 | 2020-02-05 | MAZELSKY JONATHAN JAY | Director, Officer - President & CEO | OPT+S | $277.84 | 8,000 | $2,222,692 | 42,685 | 0.0% |
| 2019-12-03 01:16 | 2019-11-29 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | OPT+S | $250.51 | 14,750 | $3,695,006 | 10,337 | 0.0% |
| 2019-11-15 01:06 | 2019-11-12 | AYERS JONATHAN W | Director, Other | SELL | $254.05 | 36,000 | $9,145,940 | 926,964 | -3.7% |
| 2019-11-13 01:01 | 2019-11-07 | AYERS JONATHAN W | Director, Other | SELL | $263.09 | 37,790 | $9,942,080 | 962,964 | -3.8% |
| 2019-11-07 01:16 | 2019-11-04 | AYERS JONATHAN W | Director, Other | OPT+S | $276.91 | 79,030 | $21,884,142 | 1,000,754 | 0.0% |
| 2019-11-06 02:05 | 2019-11-04 | SZOSTAK M ANNE | Director | SELL | $279.37 | 3,283 | $917,162 | 2,916 | -53.0% |
| 2019-08-21 00:01 | 2019-08-14 | HENDERSON REBECCA M | Director | SELL | $271.17 | 4,000 | $1,084,686 | 14,696 | -21.4% |
| 2019-08-13 01:01 | 2019-08-09 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | SELL | $274.44 | 2,300 | $631,212 | 10,315 | -18.2% |
| 2019-08-13 01:00 | 2019-08-08 | AYERS JONATHAN W | Director, Officer - Chairman of the Board | OPT+S | $272.75 | 10,000 | $2,727,486 | 1,025,942 | 0.0% |
| 2019-08-09 00:00 | 2019-08-06 | Kingsley Lawrence D | Director | BUY | $266.41 | 375 | $99,904 | 7,778 | +5.1% |
| 2019-08-08 01:33 | 2019-08-05 | Vandebroek Sophie V. | Director | OPT+S | $263.86 | 9,044 | $2,386,336 | 9,178 | 0.0% |
| 2019-08-08 01:32 | 2019-08-05 | MAZELSKY JAY | Officer - Interim President & CEO | OPT+S | $258.40 | 10,000 | $2,584,044 | 23,270 | 0.0% |
| 2019-08-08 01:31 | 2019-08-05 | Lane Michael | Officer - Corporate Vice President | OPT+S | $264.10 | 17,961 | $4,743,448 | 1,425 | 0.0% |
| 2019-08-08 01:30 | 2019-08-05 | AYERS JONATHAN W | Director, Officer - Chairman of the Board | OPT+S | $262.26 | 20,000 | $5,245,138 | 1,025,942 | 0.0% |
| 2019-06-05 00:01 | 2019-05-31 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | SELL | $250.14 | 2,600 | $650,363 | 12,595 | -17.1% |
| 2019-05-16 00:29 | 2019-05-13 | HENDERSON REBECCA M | Director | OPT+S | $241.57 | 8,790 | $2,123,422 | 18,696 | 0.0% |
| 2019-05-14 00:03 | 2019-05-10 | Lane Michael | Officer - Corporate Vice President | SELL | $245.41 | 1,812 | $444,683 | 3,952 | -31.4% |
| 2019-05-08 00:26 | 2019-05-06 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | SELL | $250.00 | 2,015 | $503,750 | 15,195 | -11.7% |
| 2019-05-07 01:01 | 2019-05-03 | MCKEON BRIAN P | Officer - Executive VP & CFO | OPT+S | $247.87 | 7,504 | $1,859,999 | 47,528 | 0.0% |
| 2019-05-07 01:00 | 2019-05-03 | AYERS JONATHAN W | Director, Officer - Chairman, President & CEO | OPT+S | $249.03 | 28,000 | $6,972,700 | 1,025,916 | 0.0% |
| 2019-03-02 01:03 | 2019-02-28 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | SELL | $211.77 | 1,500 | $317,648 | 17,178 | -8.0% |
| 2019-02-28 01:24 | 2019-02-25 | Studer Jacqueline | Officer - CVP, Gen. Counsel & Secretary | OPT+S | $210.57 | 2,529 | $532,519 | 4,389 | 0.0% |
| 2019-02-23 01:02 | 2019-02-20 | Lane Michael | Officer - Corporate Vice President | OPT+S | $211.58 | 736 | $155,723 | 5,732 | 0.0% |
| 2019-02-21 01:01 | 2019-02-15 | Studer Jacqueline | Officer - CVP, Gen. Counsel & Secretary | OPT+S | $208.46 | 11,600 | $2,418,116 | 5,762 | 0.0% |
| 2019-02-20 02:05 | 2019-02-15 | Lane Michael | Officer - Corporate Vice President | OPT+S | $208.00 | 971 | $201,968 | 3,146 | 0.0% |
| 2019-02-20 01:50 | 2019-02-14 | SZOSTAK M ANNE | Director | OPT+S | $208.96 | 5,906 | $1,234,091 | 3,416 | 0.0% |
| 2019-02-08 01:07 | 2019-02-06 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | SELL | $209.08 | 997 | $208,454 | 17,693 | -5.3% |
| 2019-02-08 01:06 | 2019-02-05 | Kingsley Lawrence D | Director | BUY | $208.68 | 2,405 | $501,875 | 7,403 | +48.1% |
| 2019-02-08 01:03 | 2019-02-05 | AYERS JONATHAN W | Director, Officer - Chairman, President & CEO | OPT+S | $206.53 | 47,714 | $9,854,182 | 1,031,322 | 0.0% |
| 2018-11-30 01:02 | 2018-11-27 | HENDERSON REBECCA M | Director | OPT+S | $194.92 | 3,504 | $682,992 | 18,696 | 0.0% |
| 2018-11-08 01:01 | 2018-11-06 | Studer Jacqueline | Officer - CVP, Gen. Counsel & Secretary | SELL | $201.27 | 3,313 | $666,823 | 4,951 | -40.1% |
| 2018-08-24 01:04 | 2018-08-21 | TWIGGE GIOVANI | Officer - CORPORATE VICE PRESIDENT | OPT+S | $242.71 | 11,372 | $2,760,072 | 14,174 | 0.0% |
| 2018-08-24 01:03 | 2018-08-21 | Studer Jacqueline | Officer - CVP, Gen. Counsel & Secretary | OPT+S | $244.03 | 11,619 | $2,835,375 | 7,634 | 0.0% |
| 2018-08-24 01:03 | 2018-08-21 | Lane Michael | Officer - Corporate Vice President | OPT+S | $243.78 | 5,912 | $1,441,211 | 3,333 | 0.0% |
| 2018-08-24 01:02 | 2018-08-21 | AYERS JONATHAN W | Director, Officer - Chairman, President & CEO | OPT+S | $245.50 | 30,000 | $7,365,144 | 1,073,469 | 0.0% |
| 2018-08-08 01:02 | 2018-08-06 | Studer Jacqueline | Officer - CVP, Gen. Counsel & Secretary | OPT+S | $242.37 | 8,598 | $2,083,871 | 5,849 | 0.0% |
| 2018-08-08 01:01 | 2018-08-03 | Vandebroek Sophie V. | Director | OPT+S | $240.64 | 3,265 | $785,695 | 8,848 | 0.0% |
| 2018-08-08 01:00 | 2018-08-03 | Claflin Bruce L. | Director | BUY | $242.12 | 415 | $100,480 | 1,415 | +41.5% |
How to Interpret $IDXX Trades
Not every insider transaction in IDEXX LABORATORIES INC /DE is a signal for immediate action. Professional investors look for "cluster buying"—when multiple executives simultaneously purchase $IDXX shares on the open market. It is crucial to distinguish between scheduled sales (under Rule 10b5-1) and voluntary increases in ownership, which demonstrate management’s true conviction that the stock is undervalued.
Data Source & Accuracy for IDXX
Insider activity data for IDEXX LABORATORIES INC /DE is streamed in real-time directly from the SEC EDGAR system. We analyze raw Form 4 filings, filtering out technical adjustments and complex derivative transactions. This provides a transparent view of how ownership structure is evolving in $IDXX, allowing you to follow the capital of those with the most intimate knowledge of the company.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.