Insider trading

Period: 120 months Stock: ZTS Role: Directors × + Add filter Clear all
Views & alerts

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When

Period

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

23 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.

23 decisions over 120 months Remove this filter
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.

23 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.

23 decisions over 120 months
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.
23 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
23 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.

23 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
13 May 2026
DAMELIO FRANK A Director
Bought
$501.34K 6,650 at 75.39
44.9%
First buy on file
13 May 2026
Bisaro Paul Director
Bought
$151.75K 2,000 at 75.88
7.7%
First buy on file
11 May 2026
MCCALLISTER MICHAEL B Director · indirect
Bought
$233.27K 3,000 at 77.76
13.9%
First buy on file
11 Mar 2025
Reed Willie M Director
Sold at will
$201.03K 1,210 at 166.14
9.7%
Not planned
11 Mar 2024
Reed Willie M Director
Sold at will
$250.26K 1,370 at 182.68
12.1%
Not planned
10 Jun 2022
Reed Willie M Director
Sold, plan not stated
$301.09K 1,855 at 162.31
21.5%
5 Nov 2021
Norden Gregory Director · indirect
Sold, plan not stated
$972.32K 4,500 at 216.07
53.6%
Sold half or more
23 Aug 2021
Reed Willie M Director
Sold, plan not stated
$300.30K 1,450 at 207.10
19.6%
19 Feb 2021
Alaix Juan Ramon Director
Sold, plan not stated 3×
$21.36M 133,070 at 160.55
38.3%
19 Feb 2021
SCULLY ROBERT W Director · indirect
Bought 3×
$1.25M 7,590 at 164.68
opened
First buy on file
13 Nov 2020
Alaix Juan Ramon Director
Sold, plan not stated 2×
$15.18M 91,747 at 165.46
95.6%
Sold half or more
4 Sep 2020
Rhodes Linda Director
Sold, plan not stated
$173.01K 1,087 at 159.16
42.5%
13 Aug 2020
Reed Willie M Director
Sold, plan not stated
$299.85K 1,885 at 159.07
28.9%
4 Mar 2020
Alaix Juan Ramon Director
Sold, plan not stated 4×
$30.85M 218,208 at 141.38
69.4%
Sold half or more
3 Mar 2020
Alaix Juan Ramon Director
Sold, plan not stated 2×
$6.39M 45,452 at 140.66
32.1%
21 Feb 2020
Alaix Juan Ramon Director
Sold, plan not stated
$17.13M 120,353 at 142.32
55.6%
Sold half or more
20 Feb 2020
Alaix Juan Ramon Director
Sold, plan not stated
$2.98M 20,725 at 143.61
17.8%
19 Feb 2020
Alaix Juan Ramon Director
Sold, plan not stated 2×
$9.08M 63,046 at 144.03
39.6%
13 Jun 2019
Reed Willie M Director
Sold, plan not stated
$210.10K 1,900 at 110.58
40.3%
30 Nov 2018
Reed Willie M Director
Sold, plan not stated
$300.44K 3,205 at 93.74
85.0%
Sold half or more
4 Jun 2018
Sanjay Khosla Director
Sold, plan not stated
$1.45K 17 at 85.33
0.7%
11 Jan 2018
Sanjay Khosla Director
Bought
$745.60 10 at 74.56
143%
First buy on file
14 Oct 2016
Sanjay Khosla Director
Bought
$352.17 7 at 50.31
opened
First buy on file
Showing 1–23 of 23.