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IDEXX Laboratories Inc (IDXX)

Recent insider activity at IDEXX Laboratories Inc. shows a net sell-off, primarily driven by large sales from executives including the President and CEO, Jonathan Jay Mazelsky, and Executive Vice President, Nimrata Hunt. Director Margaret Anne Szostak also proposed a sale. This activity occurred following the latest earnings report, which slightly beat expectations.
Stock chart
Ticker: IDXX Exchange: NSM


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Margaret Anne Szostak
Director
1 sale — total 744,012 USD
Proposed sale 20 May 2026
Value US$871,669.27 | Price 308.52 | Shares 58,274
Sale 3 Mar 2026
Value US$3,385,348.56 | Price 318.76 | Shares 51,600
Proposed sale 3 Mar 2026
Value US$1,115,577.22 | Price 634.57 | Shares 1,758
Sale 26 Feb 2026
Value US$1,716,620.66 | Price 663.04 | Shares 2,589
Sale 26 Feb 2026
Value US$662,156.70 | Price 662.16 | Shares 1,000
Sale 26 Feb 2026
Value US$793,317.12 | Price 661.10 | Shares 1,200
Sale 26 Feb 2026
Value US$1,886,223.82 | Price 659.75 | Shares 2,859
Sale 26 Feb 2026
Value US$2,411,634.76 | Price 658.92 | Shares 3,660
Sale 26 Feb 2026
Value US$1,881,433.27 | Price 657.84 | Shares 2,860
Sale 26 Feb 2026
Value US$882,142.97 | Price 656.85 | Shares 1,343
Sale 26 Feb 2026
Value US$975,904.50 | Price 655.85 | Shares 1,488
Sale 26 Feb 2026
Value US$727,293.26 | Price 654.63 | Shares 1,111
Sale 26 Feb 2026
Value US$765,454.95 | Price 653.68 | Shares 1,171
Sale 26 Feb 2026
Value US$1,089,013.32 | Price 652.49 | Shares 1,669
Sale 26 Feb 2026
Value US$713,377.83 | Price 651.49 | Shares 1,095
Sale 26 Feb 2026
Value US$833,507.63 | Price 650.67 | Shares 1,281
Sale 26 Feb 2026
Value US$1,781,530.72 | Price 661.54 | Shares 2,693
Proposed sale 26 Feb 2026
Value US$15,338,081.28 | Price 657.55 | Shares 23,326
Proposed sale 25 Feb 2026
Value US$1,781,530.72 | Price 661.54 | Shares 2,693
Sale 17 Feb 2026
Value US$25,194.50 | Price 629.86 | Shares 40
Sale 17 Feb 2026
Value US$433,443.42 | Price 629.09 | Shares 689
Sale 17 Feb 2026
Value US$1,692,426.84 | Price 628.22 | Shares 2,694
Sale 17 Feb 2026
Value US$806,618.24 | Price 626.26 | Shares 1,288
Sale 17 Feb 2026
Value US$127,549.43 | Price 625.24 | Shares 204
Sale 17 Feb 2026
Value US$284,433.74 | Price 623.76 | Shares 456
Sale 17 Feb 2026
Value US$326,222.64 | Price 628.56 | Shares 519
Sale 17 Feb 2026
Value US$594,070.47 | Price 628.65 | Shares 945
Proposed sale 17 Feb 2026
Value US$3,369,666.57 | Price 627.38 | Shares 5,371
Proposed sale 17 Feb 2026
Value US$920,293.11 | Price 628.62 | Shares 1,464
Sale 10 Feb 2026
Value US$26,012.80 | Price 650.32 | Shares 40
Sale 10 Feb 2026
Value US$1,823,771.06 | Price 649.26 | Shares 2,809
Sale 10 Feb 2026
Value US$626,720.71 | Price 648.78 | Shares 966
Sale 10 Feb 2026
Value US$686,039.00 | Price 647.21 | Shares 1,060
Sale 10 Feb 2026
Value US$1,797,800.45 | Price 646.23 | Shares 2,782
Sale 10 Feb 2026
Value US$1,394,387.84 | Price 645.25 | Shares 2,161
Sale 10 Feb 2026
Value US$255,674.35 | Price 644.02 | Shares 397
Sale 10 Feb 2026
Value US$726,587.06 | Price 643.00 | Shares 1,130
Proposed sale 10 Feb 2026
Value US$7,336,994.15 | Price 646.72 | Shares 11,345
Sale 7 Nov 2025
Value US$972,240.73 | Price 705.54 | Shares 1,378
Sale 7 Nov 2025
Value US$1,034,743.14 | Price 704.87 | Shares 1,468
Sale 7 Nov 2025
Value US$1,030,970.16 | Price 703.73 | Shares 1,465
Sale 7 Nov 2025
Value US$3,591,059.49 | Price 702.20 | Shares 5,114
Proposed sale 7 Nov 2025
Value US$6,629,059.61 | Price 703.35 | Shares 9,425
Sale 22 Aug 2025
Value US$1,415,700.21 | Price 647.33 | Shares 2,187
Proposed sale 22 Aug 2025
Value US$1,415,700.21 | Price 647.33 | Shares 2,187
Sale 12 Aug 2025
Value US$57,116.68 | Price 649.85 | Shares 88
Planned sale 12 Aug 2025
Value US$206,696.82 | Price 649.99 | Shares 318
Proposed sale 12 Aug 2025
Value US$264,533.53 | Price 649.96 | Shares 407
Sale 11 Aug 2025
Value US$787,840.20 | Price 656.53 | Shares 1,200
Proposed sale 11 Aug 2025
Value US$787,840.20 | Price 656.53 | Shares 1,200
Sale 8 Aug 2025
Value US$3,551,220.00 | Price 651.60 | Shares 5,450
Proposed sale 8 Aug 2025
Value US$3,551,220.00 | Price 651.60 | Shares 5,450
Sale 6 Aug 2025
Value US$768,179.32 | Price 630.69 | Shares 1,218
Sale 6 Aug 2025
Value US$1,834,051.59 | Price 630.91 | Shares 2,907
Sale 6 Aug 2025
Value US$1,900,932.57 | Price 629.87 | Shares 3,018
Sale 6 Aug 2025
Value US$421,985.39 | Price 639.37 | Shares 660
Sale 6 Aug 2025
Value US$560,391.30 | Price 636.81 | Shares 880
Sale 6 Aug 2025
Value US$1,159,068.40 | Price 636.15 | Shares 1,822
Sale 6 Aug 2025
Value US$2,239,457.10 | Price 635.13 | Shares 3,526
Sale 6 Aug 2025
Value US$1,897,689.00 | Price 632.56 | Shares 3,000
Sale 6 Aug 2025
Value US$4,610,095.84 | Price 631.61 | Shares 7,299
Sale 6 Aug 2025
Value US$3,818,874.24 | Price 630.59 | Shares 6,056
Sale 6 Aug 2025
Value US$2,139,508.05 | Price 629.82 | Shares 3,397
Sale 6 Aug 2025
Value US$958,114.80 | Price 628.27 | Shares 1,525
Sale 6 Aug 2025
Value US$686,458.13 | Price 626.90 | Shares 1,095
Sale 6 Aug 2025
Value US$188,665.98 | Price 628.89 | Shares 300
Sale 6 Aug 2025
Value US$1,557,417.93 | Price 627.99 | Shares 2,480
Sale 6 Aug 2025
Value US$3,533,809.51 | Price 627.56 | Shares 5,631
Proposed sale 6 Aug 2025
Value US$4,503,160.87 | Price 630.43 | Shares 7,143
Proposed sale 6 Aug 2025
Value US$18,491,641.17 | Price 631.98 | Shares 29,260
Proposed sale 6 Aug 2025
Value US$5,279,893.38 | Price 627.74 | Shares 8,411
Sale 21 May 2025
Value US$645,544.75 | Price 512.34 | Shares 1,260
Sale 21 May 2025
Value US$537,372.04 | Price 513.74 | Shares 1,046
Proposed sale 21 May 2025
Value US$540,949.00 | Price 517.16 | Shares 1,046
Proposed sale 21 May 2025
Value US$651,621.00 | Price 517.16 | Shares 1,260
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-05-20 2026-05-20 PrS Proposed sale

Director

Non-Executive Director
58,274
308.52
US$871,669
58,274 308.52 US$871,669
2026-03-05 2026-03-03 S Sale

Executive Vice President

Officer
51,600 +25.0%
318.76
US$3,385,349
51,600 +25.0% 318.76 US$3,385,349
2026-03-03 2026-03-03 PrS Proposed sale

Officer

Officer
94,145
129.75
US$4,972,802
94,145 129.75 US$4,972,802
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
2,589 -3.0%
663.04
US$1,716,621
2,589 -3.0% 663.04 US$1,716,621
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,000 -1.1%
662.16
US$662,157
1,000 -1.1% 662.16 US$662,157
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,200 -1.4%
661.10
US$793,317
1,200 -1.4% 661.10 US$793,317
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
2,859 -3.1%
659.75
US$1,886,224
2,859 -3.1% 659.75 US$1,886,224
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
3,660 -3.9%
658.92
US$2,411,635
3,660 -3.9% 658.92 US$2,411,635
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
2,860 -2.9%
657.84
US$1,881,433
2,860 -2.9% 657.84 US$1,881,433
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,343 -1.4%
656.85
US$882,143
1,343 -1.4% 656.85 US$882,143
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,488 -1.5%
655.85
US$975,905
1,488 -1.5% 655.85 US$975,905
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,111 -1.1%
654.63
US$727,293
1,111 -1.1% 654.63 US$727,293
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,171 -1.1%
653.68
US$765,455
1,171 -1.1% 653.68 US$765,455
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,669 -1.6%
652.49
US$1,089,013
1,669 -1.6% 652.49 US$1,089,013
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,095 -1.0%
651.49
US$713,378
1,095 -1.0% 651.49 US$713,378
2026-03-02 2026-02-26 S Sale

President and CEO

Executive Director
1,281 -1.2%
650.67
US$833,508
1,281 -1.2% 650.67 US$833,508
2026-02-27 2026-02-26 S Sale

Executive Vice President

Officer
2,693 -11.9%
661.54
US$1,781,531
2,693 -11.9% 661.54 US$1,781,531
2026-02-26 2026-02-26 PrS Proposed sale

Officer; Director

Executive Director
23,326
657.55
US$15,338,081
23,326 657.55 US$15,338,081
2026-02-25 2026-02-25 PrS Proposed sale

Officer

Officer
2,693
661.54
US$1,781,531
2,693 661.54 US$1,781,531
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
40 -0.3%
629.86
US$25,194
40 -0.3% 629.86 US$25,194
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
689 -5.1%
629.09
US$433,443
689 -5.1% 629.09 US$433,443
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
2,694 -16.7%
628.22
US$1,692,427
2,694 -16.7% 628.22 US$1,692,427
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
1,288 -7.4%
626.26
US$806,618
1,288 -7.4% 626.26 US$806,618
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
204 -1.2%
625.24
US$127,549
204 -1.2% 625.24 US$127,549
2026-02-19 2026-02-17 S Sale

Executive Vice President

Officer
456 -2.5%
623.76
US$284,434
456 -2.5% 623.76 US$284,434
2026-02-19 2026-02-17 S Sale Non-Executive Director
519 -44.5%
628.56
US$326,223
519 -44.5% 628.56 US$326,223
2026-02-19 2026-02-17 S Sale Non-Executive Director
945 -44.7%
628.65
US$594,070
945 -44.7% 628.65 US$594,070
2026-02-17 2026-02-17 PrS Proposed sale

Officer

Officer
5,371
627.38
US$3,369,667
5,371 627.38 US$3,369,667
2026-02-17 2026-02-17 PrS Proposed sale

Director

Non-Executive Director
1,464
628.62
US$920,293
1,464 628.62 US$920,293
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
40 -0.4%
650.32
US$26,013
40 -0.4% 650.32 US$26,013
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
2,809 -22.2%
649.26
US$1,823,771
2,809 -22.2% 649.26 US$1,823,771
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
966 -7.1%
648.78
US$626,721
966 -7.1% 648.78 US$626,721
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
1,060 -7.2%
647.21
US$686,039
1,060 -7.2% 647.21 US$686,039
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
2,782 -15.9%
646.23
US$1,797,800
2,782 -15.9% 646.23 US$1,797,800
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
2,161 -11.0%
645.25
US$1,394,388
2,161 -11.0% 645.25 US$1,394,388
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
397 -2.0%
644.02
US$255,674
397 -2.0% 644.02 US$255,674
2026-02-11 2026-02-10 S Sale

Executive Vice President

Officer
1,130 -5.3%
643.00
US$726,587
1,130 -5.3% 643.00 US$726,587
2026-02-10 2026-02-10 PrS Proposed sale

Officer

Officer
11,345
646.72
US$7,336,994
11,345 646.72 US$7,336,994
2025-11-10 2025-11-07 S Sale

Executive Vice President

Officer
1,378 -6.1%
705.54
US$972,241
1,378 -6.1% 705.54 US$972,241
2025-11-10 2025-11-07 S Sale

Executive Vice President

Officer
1,468 -6.1%
704.87
US$1,034,743
1,468 -6.1% 704.87 US$1,034,743
2025-11-10 2025-11-07 S Sale

Executive Vice President

Officer
1,465 -5.8%
703.73
US$1,030,970
1,465 -5.8% 703.73 US$1,030,970
2025-11-10 2025-11-07 S Sale

Executive Vice President

Officer
5,114 -16.7%
702.20
US$3,591,059
5,114 -16.7% 702.20 US$3,591,059
2025-11-07 2025-11-07 PrS Proposed sale

Officer

Officer
9,425
703.35
US$6,629,060
9,425 703.35 US$6,629,060
2025-08-26 2025-08-22 S Sale Non-Executive Director
2,187 -89.3%
647.33
US$1,415,700
2,187 -89.3% 647.33 US$1,415,700
2025-08-22 2025-08-22 PrS Proposed sale

Director

Non-Executive Director
2,187
647.33
US$1,415,700
2,187 647.33 US$1,415,700
2025-08-14 2025-08-12 S Sale

Executive Vice President

Officer
88 -0.8%
649.85
US$57,117
88 -0.8% 649.85 US$57,117
2025-08-14 2025-08-12 PlS Planned sale

Executive Vice President

Officer
318 -2.7%
649.99
US$206,697
318 -2.7% 649.99 US$206,697
2025-08-12 2025-08-12 PrS Proposed sale

Officer

Officer
407
649.96
US$264,534
407 649.96 US$264,534
2025-08-13 2025-08-11 S Sale

Executive Vice President

Officer
1,200 -6.7%
656.53
US$787,840
1,200 -6.7% 656.53 US$787,840
2025-08-11 2025-08-11 PrS Proposed sale

Officer

Officer
1,200
656.53
US$787,840
1,200 656.53 US$787,840
2025-08-12 2025-08-08 S Sale

EVP, GC & Corporate Secretary

Officer
5,450 -47.0%
651.60
US$3,551,220
5,450 -47.0% 651.60 US$3,551,220
2025-08-08 2025-08-08 PrS Proposed sale

Officer

Officer
5,450
651.60
US$3,551,220
5,450 651.60 US$3,551,220
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
1,218 -6.3%
630.69
US$768,179
1,218 -6.3% 630.69 US$768,179
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
2,907 -13.1%
630.91
US$1,834,052
2,907 -13.1% 630.91 US$1,834,052
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
3,018 -12.0%
629.87
US$1,900,933
3,018 -12.0% 629.87 US$1,900,933
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
660 -0.8%
639.37
US$421,985
660 -0.8% 639.37 US$421,985
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
880 -1.0%
636.81
US$560,391
880 -1.0% 636.81 US$560,391
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
1,822 -2.1%
636.15
US$1,159,068
1,822 -2.1% 636.15 US$1,159,068
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
3,526 -3.9%
635.13
US$2,239,457
3,526 -3.9% 635.13 US$2,239,457
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
3,000 -3.2%
632.56
US$1,897,689
3,000 -3.2% 632.56 US$1,897,689
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
7,299 -7.3%
631.61
US$4,610,096
7,299 -7.3% 631.61 US$4,610,096
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
6,056 -5.7%
630.59
US$3,818,874
6,056 -5.7% 630.59 US$3,818,874
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
3,397 -3.1%
629.82
US$2,139,508
3,397 -3.1% 629.82 US$2,139,508
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
1,525 -1.4%
628.27
US$958,115
1,525 -1.4% 628.27 US$958,115
2025-08-08 2025-08-06 S Sale

President and CEO

Executive Director
1,095 -1.0%
626.90
US$686,458
1,095 -1.0% 626.90 US$686,458
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
300 -4.0%
628.89
US$188,666
300 -4.0% 628.89 US$188,666
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
2,480 -25.0%
627.99
US$1,557,418
2,480 -25.0% 627.99 US$1,557,418
2025-08-08 2025-08-06 S Sale

Executive Vice President

Officer
5,631 -36.2%
627.56
US$3,533,810
5,631 -36.2% 627.56 US$3,533,810
2025-08-06 2025-08-06 PrS Proposed sale

Officer

Officer
7,143
630.43
US$4,503,161
7,143 630.43 US$4,503,161
2025-08-06 2025-08-06 PrS Proposed sale

Officer; Director

Executive Director
29,260
631.98
US$18,491,641
29,260 631.98 US$18,491,641
2025-08-06 2025-08-06 PrS Proposed sale

Officer

Officer
8,411
627.74
US$5,279,893
8,411 627.74 US$5,279,893
2025-05-23 2025-05-21 S Sale Non-Executive Director
1,260 -41.2%
512.34
US$645,545
1,260 -41.2% 512.34 US$645,545
2025-05-23 2025-05-21 S Sale Non-Executive Director
1,046 -80.0%
513.74
US$537,372
1,046 -80.0% 513.74 US$537,372
2025-05-21 2025-05-21 PrS Proposed sale

Director

Non-Executive Director
1,046
517.16
US$540,949
1,046 517.16 US$540,949
2025-05-21 2025-05-21 PrS Proposed sale

Director

Non-Executive Director
1,260
517.16
US$651,621
1,260 517.16 US$651,621