Insider trading

Period: 120 months Stock: WDC Role: CEO × + 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.

19 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.

19 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.

19 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.

19 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.
19 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
19 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.

19 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
11 Aug 2026
Tan Irving Chief Executive Officer
Sold on a plan 7×
$8.90M 20,000 at 444.97
3.4%
Planned (10b5-1)
1 May 2026
Tan Irving Chief Executive Officer
Sold on a plan 9×
$8.24M 20,000 at 411.84
3.2%
Planned (10b5-1)
2 Feb 2026
Tan Irving Chief Executive Officer
Sold on a plan 17×
$5.11M 20,000 at 255.44
3.1%
Planned (10b5-1)
3 Nov 2025
Tan Irving Chief Executive Officer
Sold on a plan 6×
$3.01M 20,000 at 150.69
3.0%
Planned (10b5-1)
19 Aug 2025
Tan Irving Chief Executive Officer
Sold on a plan
$654.33K 8,621 at 75.90
1.4%
Planned (10b5-1)
13 May 2025
Tan Irving Chief Executive Officer
Sold on a plan
$548.35K 11,379 at 48.19
1.8%
Planned (10b5-1)
25 Oct 2024
Goeckeler David Chief Executive Officer
Sold on a plan
$5.44M 75,000 at 72.59
8.4%
Planned (10b5-1)
26 Sep 2024
Goeckeler David Chief Executive Officer
Sold on a plan
$5.27M 75,000 at 70.32
7.7%
Planned (10b5-1)
8 Jan 2020
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$490.48K 7,156 at 68.54
2.0%
7 Jan 2020
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$314.63K 4,629 at 67.97
1.3%
14 May 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$1.34M 16,510 at 80.94
19.5%
12 Mar 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$5.11M 50,973 at 100.16
42.8%
9 Mar 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$227.52K 2,291 at 99.31
3.3%
7 Mar 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$2.19M 23,155 at 94.49
24.7%
5 Feb 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated 5×
$1.39M 16,511 at 84.00
10.5%
29 Jan 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated 3×
$8.00M 90,755 at 88.12
39.3%
25 Jan 2017
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$2.26M 28,340 at 79.92
26.9%
24 Jan 2017
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$3.01M 40,079 at 75.00
27.5%
1 Dec 2016
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$4.36K 67 at 65.00
0.1%
Showing 1–19 of 19.