Insider trading

Period: 120 months Stock: ZD Plan: Discretionary × + 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
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 Remove this filter
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
18 Aug 2026
KRETZMER W BRIAN Director
Sold at will
$138.99K 2,513 at 55.31
11.2%
Not planned
12 Aug 2026
TANSLEY LORI A. Chief Accounting Officer
Sold at will
$76.66K 1,400 at 54.76
64.6%
Sold half or more
10 Aug 2026
ROSSEN JEREMY EVP/General Counsel
Sold at will
$209.78K 3,819 at 54.93
26.4%
Not planned
10 Jun 2026
RICHTER BRET Chief Financial Officer
Sold at will
$843.84K 18,000 at 46.88
38.1%
Not planned
8 Jun 2026
McDonald Kirk P Director
Sold at will 2×
$50.15K 1,075 at 46.65
7.4%
Not planned
5 Jun 2026
ROSSEN JEREMY EVP/General Counsel
Sold at will
$376.00K 8,000 at 47.00
35.6%
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
28 May 2026
ROSSEN JEREMY EVP/General Counsel
Sold at will
$198.88K 4,347 at 45.75
16.2%
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
5 Mar 2025
RICHTER BRET Chief Financial Officer
Bought
$98.03K 2,500 at 39.21
18.1%
5 Mar 2025
ROSSEN JEREMY EVP/General Counsel · indirect
Bought
$38.02K 1,000 at 38.02
100%
+100% of stake
4 Mar 2025
Shah Vivek Chief Executive Officer · indirect
Bought
$499.88K 12,636 at 39.56
4.7%
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%
29 Feb 2024
ROSSEN JEREMY EVP/General Counsel
Sold at will 2×
$288.96K 4,162 at 69.43
36.4%
Not planned
31 May 2023
RICHTER BRET Chief Financial Officer
Bought
$118.26K 2,000 at 59.13
63.7%
First buy on file
31 May 2023
ROSSEN JEREMY EVP/General Counsel
Bought
$58.45K 1,000 at 58.45
10.3%
First buy on file
30 May 2023
Shah Vivek Chief Executive Officer · indirect
Bought
$588.56K 10,000 at 58.86
9.1%
First buy on file
12 May 2023
FAY SARAH ANN Director
Bought
$49.58K 777 at 63.81
5.7%
Showing 1–23 of 23.