Insider trading

Period: 120 months Stock: IDXX Minimum amount: $1M × + 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.

160 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.

160 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.

160 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.

160 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.
160 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
160 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.

160 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
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
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
13 May 2025
JUNIUS DANIEL M Director
Sold at will
$1.36M 2,683 at 506.41
44.8%
Not planned
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
6 Mar 2024
POLEWACZYK JAMES F Executive Vice President
Sold at will 3×
$4.53M 8,104 at 558.44
43.1%
Not planned
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
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%
14 Feb 2023
Turner Kathy V Senior Vice President
Sold, plan not stated 4×
$1.01M 2,000 at 504.59
21.3%
5 Dec 2022
JUNIUS DANIEL M Director
Sold, plan not stated
$1.29M 3,046 at 424.91
50.6%
Sold half or more
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%
29 Nov 2021
POLEWACZYK JAMES F Executive Vice President
Sold, plan not stated
$2.91M 4,595 at 633.00
23.7%
12 Nov 2021
MCKEON BRIAN P Executive VP & CFO
Sold, plan not stated 2×
$5.73M 9,225 at 620.73
26.0%
10 Nov 2021
MCKEON BRIAN P Executive VP & CFO
Sold, plan not stated 9×
$12.50M 20,000 at 624.96
43.2%
9 Nov 2021
MCKEON BRIAN P Executive VP & CFO
Sold, plan not stated 2×
$3.98M 6,310 at 630.22
19.3%
8 Nov 2021
MCKEON BRIAN P Executive VP & CFO
Sold, plan not stated 8×
$6.28M 10,000 at 628.31
27.5%
30 Aug 2021
Turner Kathy V Senior Vice President
Sold, plan not stated 2×
$1.55M 2,250 at 687.22
43.9%
13 Aug 2021
MAZELSKY JONATHAN JAY President & CEO
Sold, plan not stated 3×
$3.20M 4,737 at 675.71
8.5%
10 Aug 2021
JUNIUS DANIEL M Director
Sold, plan not stated
$1.63M 2,402 at 679.58
45.3%
6 Aug 2021
SZOSTAK M ANNE Director · indirect
Sold, plan not stated 10×
$2.06M 3,000 at 687.87
29.4%
4 Aug 2021
TWIGGE GIOVANI Senior Vice President
Sold, plan not stated 3×
$8.00M 11,421 at 700.35
40.0%
3 Aug 2021
TWIGGE GIOVANI Senior Vice President
Sold, plan not stated 2×
$6.17M 8,874 at 695.54
32.5%
3 Aug 2021
Lane Michael Executive Vice President
Sold, plan not stated 18×
$4.84M 6,999 at 691.62
65.7%
Sold half or more
28 May 2021
POLEWACZYK JAMES F Executive Vice President
Sold, plan not stated 8×
$5.62M 10,000 at 561.91
33.4%
28 May 2021
AYERS JONATHAN W Director
Sold, plan not stated 5×
$5.32M 9,460 at 562.26
1.4%
28 May 2021
Turner Kathy V Senior Vice President
Sold, plan not stated
$1.12M 2,000 at 558.44
40.9%
Showing 1–50 of 160. Page 1 of 4 Older →