Jonathan J. Mazelsky's Insider Trades & SAST Disclosures

Jonathan J. Mazelsky's most recent trade in Idexx Laboratories, Inc. was a trade of 23,326 Common Stock done at an average price of $141.6 . Disclosure was reported to the exchange on Feb. 26, 2026.

Stock Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 141.60 per share. 26 Feb 2026 23,326 106,932 (0%) 0% 141.6 3,302,962 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 26 Feb 2026 23,326 0 - - Non-Qualified Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 658.92 per share. 26 Feb 2026 3,660 91,254 (0%) 0% 658.9 2,411,635 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 657.84 per share. 26 Feb 2026 2,860 94,914 (0%) 0% 657.8 1,881,433 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 659.75 per share. 26 Feb 2026 2,859 88,395 (0%) 0% 659.7 1,886,224 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 663.04 per share. 26 Feb 2026 2,589 83,606 (0%) 0% 663.0 1,716,621 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 652.49 per share. 26 Feb 2026 1,669 102,887 (0%) 0% 652.5 1,089,013 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 655.85 per share. 26 Feb 2026 1,488 99,117 (0%) 0% 655.9 975,905 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 656.85 per share. 26 Feb 2026 1,343 97,774 (0%) 0% 656.8 882,143 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 650.67 per share. 26 Feb 2026 1,281 105,651 (0%) 0% 650.7 833,508 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 661.10 per share. 26 Feb 2026 1,200 87,195 (0%) 0% 661.1 793,317 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 653.68 per share. 26 Feb 2026 1,171 101,716 (0%) 0% 653.7 765,455 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 654.63 per share. 26 Feb 2026 1,111 100,605 (0%) 0% 654.6 727,293 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 651.49 per share. 26 Feb 2026 1,095 104,556 (0%) 0% 651.5 713,378 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 662.16 per share. 26 Feb 2026 1,000 86,195 (0%) 0% 662.2 662,157 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 26 Feb 2026 197 0 - - Incentive Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 505.53 per share. 26 Feb 2026 197 83,803 (0%) 0% 505.5 99,589 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Feb 2026 13,407 13,407 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 12 Feb 2026 1,099 84,521 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 12 Feb 2026 1,099 1,099 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 12 Feb 2026 958 0 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 12 Feb 2026 958 83,422 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 629.35 per share. 12 Feb 2026 915 83,606 (0%) 0% 629.3 575,855 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 09 Jan 2026 395 28,846 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 09 Jan 2026 153 14,535 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
J. Jonathan Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Dec 2025 2,637 14,381 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Oct 2025 359 28,451 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Oct 2025 123 11,743 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2025 2,386 11,620 - - Phantom Stock (Directors Deferred Compensation) DDC
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Gift of securities by or to the insider at price $ 0.00 per share. 15 Aug 2025 1,051 82,443 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 598.49 per share. 08 Aug 2025 183 83,494 (0%) 0% 598.5 109,523 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 08 Aug 2025 183 0 - - Premium Incentive Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 06 Aug 2025 29,260 0 - - Non-Qualified Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 67.85 per share. 06 Aug 2025 29,260 112,571 (0%) 0% 67.9 1,985,291 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 631.61 per share. 06 Aug 2025 7,299 93,199 (0%) 0% 631.6 4,610,096 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 630.59 per share. 06 Aug 2025 6,056 100,498 (0%) 0% 630.6 3,818,874 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 635.13 per share. 06 Aug 2025 3,526 86,673 (0%) 0% 635.1 2,239,457 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 629.82 per share. 06 Aug 2025 3,397 106,554 (0%) 0% 629.8 2,139,508 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 632.56 per share. 06 Aug 2025 3,000 90,199 (0%) 0% 632.6 1,897,689 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 636.15 per share. 06 Aug 2025 1,822 84,851 (0%) 0% 636.2 1,159,068 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 628.27 per share. 06 Aug 2025 1,525 109,951 (0%) 0% 628.3 958,115 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 626.90 per share. 06 Aug 2025 1,095 111,476 (0%) 0% 626.9 686,458 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 636.81 per share. 06 Aug 2025 880 83,971 (0%) 0% 636.8 560,391 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 639.37 per share. 06 Aug 2025 660 83,311 (0%) 0% 639.4 421,985 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Jul 2025 279 28,091 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Jul 2025 75 9,234 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 1,561 9,159 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 22 May 2025 13,880 27,812 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Apr 2025 147 13,932 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Apr 2025 74 7,597 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 31 Mar 2025 1,687 7,522 - - Phantom Stock (Directors Deferred Compensation) DDC
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2025 25,932 25,932 - - Non-Qualified Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 444.53 per share. 13 Feb 2025 1,222 83,282 (0%) 0% 444.5 543,216 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 1,100 2,198 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 1,100 84,504 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 958 83,404 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 958 958 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 689 82,446 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 13 Feb 2025 689 0 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 13 Feb 2025 217 217 - - Incentive Stock Option (right-to-buy)
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Jan 2025 115 13,784 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 10 Jan 2025 38 5,835 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Dec 2024 1,340 5,797 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Oct 2024 80 13,669 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 11 Oct 2024 22 4,456 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Sep 2024 935 4,433 - - Phantom Stock (Directors Deferred Compensation) DDC
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 05 Aug 2024 384 81,902 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 05 Aug 2024 384 0 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 455.08 per share. 05 Aug 2024 170 81,732 (0%) 0% 455.1 77,364 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jul 2024 86 13,588 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jul 2024 21 3,497 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 28 Jun 2024 994 3,476 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 23 May 2024 7,994 13,502 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Apr 2024 26 5,508 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
Jonathan J. Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Apr 2024 12 2,481 - - Phantom Stock (Directors Deferred Compensation) DDC
DENTSPLY Sirona Inc
J. Mazelsky Jonathan Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 28 Mar 2024 761 2,469 - - Phantom Stock (Directors Deferred Compensation) DDC
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Gift of securities by or to the insider at price $ 0.00 per share. 29 Feb 2024 550 81,496 (0%) 0% 0 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 21 Feb 2024 483 0 - - Incentive Stock Option (right-to-buy)
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 206.94 per share. 21 Feb 2024 483 82,046 (0%) 0% 206.9 99,952 Common Stock
Idexx Laboratories
Jonathan Mazelsky J. Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 14 Feb 2024 21,335 21,335 - - Non-Qualified Stock Option (right-to-buy)
Idexx Laboratories
Jonathan Mazelsky J. Director, President and CEO Payment of exercise price or tax liability using portion of securities received from the company at price $ 560.56 per share. 14 Feb 2024 1,839 81,563 (0%) 0% 560.6 1,030,870 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 1,100 83,402 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 1,100 3,298 - - Restricted Stock Unit
Idexx Laboratories
Jonathan Mazelsky J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 974 80,655 (0%) 0% 0 Common Stock
Idexx Laboratories
J. Jonathan Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 974 0 - - Restricted Stock Unit
Idexx Laboratories
J. Jonathan Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 958 1,916 - - Restricted Stock Unit
Idexx Laboratories
J. Mazelsky Jonathan Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 958 82,302 (0%) 0% 0 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 689 81,344 (0%) 0% 0 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 689 689 - - Restricted Stock Unit
Idexx Laboratories
Jonathan Mazelsky J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 435 79,681 (0%) 0% 0 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 14 Feb 2024 435 0 - - Restricted Stock Unit
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 14 Feb 2024 178 178 - - Incentive Stock Option (right-to-buy)
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 0.00 per share. 07 Feb 2024 12,000 29,260 - - Non-Qualified Stock Option (right-to-buy)
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Exercise or conversion of derivative security received from the company (such as an option) at price $ 67.85 per share. 07 Feb 2024 12,000 91,246 (0%) 0% 67.9 814,200 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Sale of securities on an exchange or to another person at price $ 571.71 per share. 07 Feb 2024 5,356 85,890 (0%) 0% 571.7 3,062,061 Common Stock
Idexx Laboratories
Jonathan Mazelsky J. Director, President and CEO Sale of securities on an exchange or to another person at price $ 572.53 per share. 07 Feb 2024 4,124 81,766 (0%) 0% 572.5 2,361,094 Common Stock
Idexx Laboratories
Jonathan J. Mazelsky Director, President and CEO Sale of securities on an exchange or to another person at price $ 574.75 per share. 07 Feb 2024 1,353 79,951 (0%) 0% 574.8 777,639 Common Stock
Idexx Laboratories
Mazelsky Jonathan J. Director, President and CEO Sale of securities on an exchange or to another person at price $ 575.48 per share. 07 Feb 2024 705 79,246 (0%) 0% 575.5 405,711 Common Stock
Idexx Laboratories
J. Mazelsky Jonathan Director, President and CEO Sale of securities on an exchange or to another person at price $ 573.19 per share. 07 Feb 2024 462 81,304 (0%) 0% 573.2 264,814 Common Stock
DENTSPLY Sirona Inc
J. Mazelsky Jonathan Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2024 21 5,481 (0%) 0% 0 Common Stock
DENTSPLY Sirona Inc
J. Jonathan Mazelsky Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 12 Jan 2024 6 1,707 - - Phantom Stock (Directors Deferred Compensation) DDC
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades