Insider trading

Period: 120 months Stock: ZD Role: Directors × + 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.

41 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.

41 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.

41 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.

41 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.
41 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
41 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.

41 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
18 Aug 2026
KRETZMER W BRIAN Director
Sold at will
$138.99K 2,513 at 55.31
11.2%
Not planned
8 Jun 2026
McDonald Kirk P Director
Sold at will 2×
$50.15K 1,075 at 46.65
7.4%
Not planned
3 Jun 2026
Barsten Jana Director
Sold at will
$150.62K 3,347 at 45.00
21.1%
Not planned
2 Jun 2026
KRETZMER W BRIAN Director
Sold at will
$87.60K 1,968 at 44.51
8.0%
Not planned
15 Sep 2025
FAY SARAH ANN Director
Bought
$49.95K 1,354 at 36.89
6.1%
6 Mar 2025
KRETZMER W BRIAN Director
Bought
$25.03K 653 at 38.33
5.3%
First buy on file
4 Mar 2025
FAY SARAH ANN Director
Bought
$50.00K 1,282 at 39.00
7.4%
4 Mar 2025
Barsten Jana Director
Bought
$38.08K 1,000 at 38.08
29.9%
First buy on file
27 Feb 2025
Harris Teresa A Director
Bought
$24.97K 593 at 42.11
6.9%
27 Aug 2024
Harris Teresa A Director
Bought
$46.76K 1,000 at 46.76
9.8%
12 May 2023
FAY SARAH ANN Director
Bought
$49.58K 777 at 63.81
5.7%
17 Nov 2022
KRETZMER W BRIAN Director
Sold, plan not stated
$224.12K 2,531 at 88.55
27.2%
16 Aug 2022
FAY SARAH ANN Director
Bought
$100.50K 1,162 at 86.49
11.7%
First buy on file
3 Dec 2021
Harris Teresa A Director
Bought
$49.77K 460 at 108.20
opened
First buy on file
7 Jun 2021
BECH DOUGLAS Y Director
Sold, plan not stated
$383.94K 3,000 at 127.98
2.2%
16 Feb 2021
KRETZMER W BRIAN Director
Sold, plan not stated 4×
$1.68M 15,117 at 110.85
75.1%
Sold half or more
10 Dec 2020
RESSLER RICHARD S Director · indirect
Sold, plan not stated 4×
$19.53M 200,000 at 97.67
17.1%
10 Sep 2020
KRETZMER W BRIAN Director
Sold, plan not stated
$160.88K 2,250 at 71.50
31.0%
10 Mar 2020
ROSS STEPHEN Director
Sold, plan not stated
$249.55K 2,974 at 83.91
16.2%
3 Mar 2020
FAY SARAH ANN Director
Bought
$24.82K 282 at 88.00
5.3%
First buy on file
19 Feb 2020
CRESCI ROBERT J Director
Sold, plan not stated
$1.78M 18,281 at 97.22
16.5%
19 Feb 2020
KRETZMER W BRIAN Director
Sold, plan not stated
$479.60K 4,968 at 96.54
40.6%
6 Nov 2019
MILLER JON Director
Sold, plan not stated
$1.97M 20,000 at 98.57
11.0%
4 Nov 2019
BECH DOUGLAS Y Director
Sold, plan not stated 2×
$1.80M 18,398 at 97.80
12.0%
5 Sep 2019
KRETZMER W BRIAN Director
Sold, plan not stated
$156.65K 1,800 at 87.03
19.9%
13 Mar 2019
KRETZMER W BRIAN Director
Sold, plan not stated
$505.02K 6,000 at 84.17
47.0%
27 Feb 2019
ROSS STEPHEN Director
Sold, plan not stated
$217.10K 2,550 at 85.14
13.7%
26 Feb 2019
ROSS STEPHEN Director
Sold, plan not stated
$2.64M 30,848 at 85.43
65.8%
Sold half or more
21 Feb 2019
BECH DOUGLAS Y Director
Sold, plan not stated
$366.61K 4,307 at 85.12
3.5%
19 Feb 2019
CRESCI ROBERT J Director
Sold, plan not stated
$366.25K 4,350 at 84.19
4.6%
15 Feb 2019
BECH DOUGLAS Y Director
Sold, plan not stated
$832.56K 10,000 at 83.26
8.6%
21 May 2018
FAY SARAH ANN Director
Bought
$24.95K 289 at 86.32
10.6%
First buy on file
9 May 2018
BECH DOUGLAS Y Director
Sold, plan not stated 2×
$877.14K 10,000 at 87.71
7.9%
9 May 2018
KRETZMER W BRIAN Director
Sold, plan not stated
$518.44K 5,942 at 87.25
46.8%
18 Apr 2018
CRESCI ROBERT J Director
Sold, plan not stated
$1.04M 12,779 at 81.63
14.5%
11 Apr 2018
CRESCI ROBERT J Director
Sold, plan not stated
$788.48K 10,000 at 78.85
11.7%
14 Mar 2018
FAY SARAH ANN Director
Bought
$24.90K 296 at 84.14
opened
First buy on file
12 Jun 2017
BECH DOUGLAS Y Director
Sold, plan not stated
$1.29M 15,000 at 85.86
10.8%
6 Jun 2017
KRETZMER W BRIAN Director
Sold, plan not stated
$115.16K 1,336 at 86.20
11.5%
10 May 2017
CRESCI ROBERT J Director
Sold, plan not stated
$798.07K 9,000 at 88.67
10.6%
13 Feb 2017
KRETZMER W BRIAN Director
Sold, plan not stated
$168.69K 2,000 at 84.34
19.4%
Showing 1–41 of 41.