Insider trading

Period: 120 months Stock: IDXX Minimum amount: $100K × + Add filter Clear all
Views & alerts

Save your view. Keep the filter you have built, and get an email when a new filing matches it. A free account does both.

When

Period

How far back the list reaches. Filings arrive days after the trade, so the newest rows always lag a little.

224 decisions over 120 months
Who

Role

The position the person holds at the company, read from the title on the filing. A chief executive who is also a director counts as the chief executive.

224 decisions over 120 months
The trade

Type of trade

Purchases, sales, or cluster buys: companies where 3 or more insiders bought within 30 days. The number beside each is what that choice would give.

224 decisions over 120 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

224 decisions over 120 months Remove this filter
The trade

Plan

  • Discretionary: they chose to sell that week.
  • Scheduled: a 10b5-1 plan fixed the sale months in advance, so the timing says nothing about what they knew.
  • Not stated: filed before the SEC added the box in April 2023, which is most of the older half of this database.
224 decisions over 120 months
The trade

Share of their own holding

How much of what they already held the trade moved. Selling a tenth of a stake is not the same act as selling all of it.

At least
224 decisions over 120 months
Ownership

What the chief executive holds

The value of the chief executive’s stock measured against base salary. The salary comes from the company’s own proxy. Companies with no figure are in neither direction.

224 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
4 Sep 2026
Sold at will
$1.17M 2,203 at 532.08
18.7%
Not planned
3 Mar 2026
Hunt Nimrata Executive Vice President
Sold at will
$1.12M 1,758 at 634.57
8.8%
Not planned
26 Feb 2026
MAZELSKY JONATHAN JAY President and CEO
Sold at will 13×
$15.34M 23,326 at 657.55
21.8%
Not planned
26 Feb 2026
Hunt Nimrata Executive Vice President
Sold at will
$1.78M 2,693 at 661.54
11.9%
Not planned
17 Feb 2026
Erickson Michael G Executive Vice President
Sold at will 6×
$3.37M 5,371 at 627.38
29.7%
Not planned
17 Feb 2026
Sold at will 2×
$920.29K 1,464 at 628.62
69.3%
Sold half or more
10 Feb 2026
FENNELL GEORGE Executive Vice President
Sold at will 8×
$7.34M 11,345 at 646.72
53.6%
Sold half or more
7 Nov 2025
Hunt Nimrata Executive Vice President
Sold at will 4×
$6.63M 9,425 at 703.34
30.8%
Not planned
22 Aug 2025
SZOSTAK M ANNE Director
Sold at will
$1.42M 2,187 at 647.33
89.3%
Sold half or more
12 Aug 2025
Erickson Michael G Executive Vice President
Sold at will 2×
$263.81K 406 at 649.96
3.5%
Not planned
11 Aug 2025
Hunt Nimrata Executive Vice President
Sold at will
$787.84K 1,200 at 656.53
6.7%
Not planned
8 Aug 2025
Underberg Sharon E. EVP, GC & Corporate Secretary
Sold at will
$3.55M 5,450 at 651.60
47.0%
Not planned
6 Aug 2025
MAZELSKY JONATHAN JAY President and CEO
Sold at will 10×
$18.49M 29,260 at 631.98
26.0%
Not planned
6 Aug 2025
Lane Michael Executive Vice President
Sold at will 3×
$5.28M 8,411 at 627.74
54.1%
Sold half or more
6 Aug 2025
Hunt Nimrata Executive Vice President
Sold at will 3×
$4.50M 7,143 at 630.43
28.4%
Not planned
21 May 2025
SZOSTAK M ANNE Director · indirect
Sold at will
$645.54K 1,260 at 512.34
41.2%
Not planned
21 May 2025
SZOSTAK M ANNE Director
Sold at will
$537.37K 1,046 at 513.74
80.0%
Sold half or more
13 May 2025
JUNIUS DANIEL M Director
Sold at will
$1.36M 2,683 at 506.41
44.8%
Not planned
9 May 2025
Sold at will
$628.43K 1,279 at 491.34
52.3%
Sold half or more
10 Feb 2025
FENNELL GEORGE Executive Vice President
Sold at will
$4.62M 9,986 at 462.53
55.0%
Sold half or more
7 Feb 2025
SZOSTAK M ANNE Director · indirect
Sold at will
$1.40M 3,000 at 465.95
49.5%
Not planned
27 Nov 2024
Sold at will
$144.63K 344 at 420.44
27.5%
Not planned
6 Sep 2024
SZOSTAK M ANNE Director · indirect
Sold at will
$234.69K 500 at 469.37
100%
Sold half or more
17 May 2024
Claflin Bruce L. Director
Sold at will
$108.16K 200 at 540.80
55.4%
Sold half or more
6 Mar 2024
POLEWACZYK JAMES F Executive Vice President
Sold at will 3×
$4.53M 8,104 at 558.44
43.1%
Not planned
5 Mar 2024
Sold at will
$790.43K 1,404 at 562.98
53.6%
Sold half or more
8 Feb 2024
FENNELL GEORGE SVP, Chief Revenue Officer
Sold at will 5×
$4.70M 8,198 at 573.87
55.0%
Sold half or more
7 Feb 2024
MCKEON BRIAN P EVP, CFO and Treasurer
Sold at will 9×
$13.30M 23,326 at 570.01
44.0%
Not planned
7 Feb 2024
MAZELSKY JONATHAN JAY President and CEO
Sold at will 5×
$6.87M 12,000 at 572.61
13.2%
Not planned
7 Dec 2023
POLEWACZYK JAMES F Executive Vice President
Sold at will 4×
$6.07M 11,636 at 521.79
53.7%
Sold half or more
4 Dec 2023
MAZELSKY JONATHAN JAY President and CEO
Sold at will 2×
$3.66M 7,128 at 513.05
8.3%
Not planned
31 Aug 2023
MAZELSKY JONATHAN JAY President and CEO
Sold at will
$6.87M 13,424 at 512.01
15.5%
Not planned
29 Aug 2023
POLEWACZYK JAMES F Executive Vice President
Sold at will 6×
$11.70M 22,909 at 510.56
69.5%
Sold half or more
3 Aug 2023
Lane Michael Executive Vice President
Sold at will
$8.17M 16,027 at 510.00
79.9%
Sold half or more
19 May 2023
AYERS JONATHAN W Director
Sold at will 10×
$4.91M 10,000 at 491.35
6.8%
Not planned
18 May 2023
AYERS JONATHAN W Director
Sold at will 6×
$4.89M 10,000 at 489.23
6.8%
Not planned
5 May 2023
SZOSTAK M ANNE Director · indirect
Sold at will 3×
$949.79K 2,000 at 474.89
29.9%
Not planned
5 May 2023
Lane Michael Executive Vice President
Sold at will
$484.00K 1,000 at 484.00
19.9%
Not planned
4 May 2023
Sold at will
$1.03M 2,187 at 469.02
71.5%
Sold half or more
16 Feb 2023
JUNIUS DANIEL M Director
Sold, plan not stated
$1.12M 2,187 at 511.68
42.3%
15 Feb 2023
Turner Kathy V Senior Vice President
Sold, plan not stated
$510.03K 1,000 at 510.03
11.9%
14 Feb 2023
Turner Kathy V Senior Vice President
Sold, plan not stated 4×
$1.01M 2,000 at 504.59
21.3%
9 Feb 2023
Turner Kathy V Senior Vice President
Sold, plan not stated
$505.04K 1,000 at 505.04
12.6%
5 Dec 2022
JUNIUS DANIEL M Director
Sold, plan not stated
$1.29M 3,046 at 424.91
50.6%
Sold half or more
2 Dec 2022
SZOSTAK M ANNE Director
Sold, plan not stated
$317.13K 740 at 428.55
37.0%
1 Dec 2022
Turner Kathy V Senior Vice President
Sold, plan not stated
$1.31M 3,000 at 436.00
30.2%
14 Nov 2022
MAZELSKY JONATHAN JAY President & CEO
Sold, plan not stated 4×
$4.56M 10,500 at 434.47
12.9%
11 Nov 2022
Turner Kathy V Senior Vice President
Sold, plan not stated 3×
$3.76M 8,567 at 438.53
55.3%
Sold half or more
10 Nov 2022
Turner Kathy V Senior Vice President
Sold, plan not stated 3×
$2.16M 5,310 at 407.62
43.4%
7 Nov 2022
MAZELSKY JONATHAN JAY President & CEO
Sold, plan not stated 7×
$5.06M 13,230 at 382.49
17.5%
Showing 1–50 of 224. Page 1 of 5 Older →