Insider trading

Period: 120 months Stock: WDC 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.

57 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.

57 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.

57 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.

57 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.
57 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
57 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.

57 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
31 Aug 2026
STREETER STEPHANIE A Director · indirect
Sold at will 2×
$1.79M 4,000 at 447.82
9.9%
Not planned
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)
28 Jul 2026
Cole Martin I Director
Sold on a plan 32×
$1.80M 4,000 at 449.34
15.7%
Planned (10b5-1)
9 Jun 2026
Cole Martin I Director
Sold on a plan 44×
$2.06M 4,000 at 515.63
13.6%
Planned (10b5-1)
1 Jun 2026
Gubbi Vidyadhara K Chief of Global Operations
Sold at will
$1.38M 2,475 at 556.24
2.8%
Not planned
11 May 2026
Davis Brian Scott Chief Sales & Mrktng Officer
Sold on a plan 18×
$5.01M 10,000 at 500.69
8.7%
Planned (10b5-1)
4 May 2026
Gubbi Vidyadhara K Chief of Global Operations
Sold at will
$2.07M 4,674 at 443.19
4.9%
Not planned
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)
6 Mar 2026
Gubbi Vidyadhara K Chief of Global Operations
Sold at will
$2.17M 8,518 at 255.33
7.9%
Not planned
4 Mar 2026
Gubbi Vidyadhara K Chief of Global Operations
Sold at will 2×
$2.74M 10,148 at 270.31
8.6%
Not planned
4 Mar 2026
Tregillis Cynthia L Chief Legal Officer & Corp Sec
Sold on a plan 2×
$2.50M 9,324 at 268.27
7.1%
Planned (10b5-1)
2 Mar 2026
Cole Martin I Director
Sold on a plan 14×
$1.63M 6,000 at 271.67
16.9%
Planned (10b5-1)
17 Feb 2026
Davis Brian Scott Chief Sales & Mrktng Officer
Sold on a plan 12×
$2.79M 10,000 at 279.16
7.6%
Planned (10b5-1)
6 Feb 2026
Tregillis Cynthia L Chief Legal Officer & Corp Sec
Sold at will
$1.83M 6,780 at 270.49
4.7%
Not planned
5 Feb 2026
MASSENGILL MATTHEW E Director · indirect
Sold on a plan 11×
$9.62M 36,926 at 260.43
100%
Sold half or more
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)
5 Dec 2025
Gubbi Vidyadhara K Chief of Global Operations
Sold at will 2×
$1.50M 8,943 at 168.14
6.6%
Not planned
4 Dec 2025
Gubbi Vidyadhara K Chief of Global Operations
Sold at will
$2.22M 13,877 at 159.94
9.3%
Not planned
5 Nov 2025
Cole Martin I Director
Sold on a plan 11×
$1.61M 10,000 at 161.32
20.2%
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)
4 Sep 2025
Gubbi Vidyadhara K Chief of Global Operations
Sold at will
$1.02M 11,343 at 90.29
7.0%
Not planned
22 Aug 2025
Tregillis Cynthia L Chief Legal Officer & Corp Sec
Sold on a plan
$1.05M 14,067 at 74.78
9.4%
Planned (10b5-1)
29 Oct 2024
SODERBERY ROBERT EVP & GM, Flash Business
Sold at will
$2.09M 30,767 at 68.01
18.5%
Not planned
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)
4 Jun 2024
SODERBERY ROBERT EVP & GM, Flash Business
Sold at will
$1.97M 26,853 at 73.48
15.7%
Not planned
3 Nov 2023
SODERBERY ROBERT EVP & GM, Flash Business
Sold at will
$1.96M 45,461 at 43.11
20.6%
Not planned
29 Jan 2021
RAY MICHAEL CHARLES EVP, Chief Legal Officer & Sec
Sold, plan not stated
$1.36M 22,735 at 59.92
27.0%
23 Jan 2020
CORDANO MICHAEL D President and COO
Sold, plan not stated 2×
$1.04M 14,706 at 70.80
5.6%
4 Sep 2019
RAY MICHAEL CHARLES EVP, Chief Legal Officer & Sec
Sold, plan not stated
$5.22M 87,053 at 59.96
77.4%
Sold half or more
30 Jul 2018
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated
$1.77M 24,938 at 70.83
11.5%
29 May 2018
Sivaram Srinivasan EVP, Memory Technology
Sold, plan not stated 2×
$5.52M 63,879 at 86.36
43.1%
14 May 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$1.34M 16,510 at 80.94
19.5%
13 Mar 2018
RAY MICHAEL CHARLES EVP, Chief Legal Officer & Sec
Sold, plan not stated
$1.12M 10,767 at 104.39
10.1%
12 Mar 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated
$5.11M 50,973 at 100.16
42.8%
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%
30 Jan 2018
RAY MICHAEL CHARLES EVP, Chief Legal Officer & Sec
Sold, plan not stated 2×
$2.70M 31,228 at 86.44
44.5%
29 Jan 2018
MILLIGAN STEPHEN D Chief Executive Officer
Sold, plan not stated 3×
$8.00M 90,755 at 88.12
39.3%
18 Aug 2017
BHATIA MANISH H EVP Silicon Operations
Sold, plan not stated
$1.66M 20,130 at 82.38
22.4%
4 Aug 2017
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated
$1.67M 19,777 at 84.50
18.6%
3 Aug 2017
DeMaria Jacqueline EVP & Chief Human Res Officer
Sold, plan not stated
$1.21M 14,358 at 84.53
18.9%
20 Jul 2017
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated
$1.10M 11,557 at 94.82
14.4%
19 Jul 2017
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated
$1.60M 17,028 at 93.84
17.5%
5 Jul 2017
Sivaram Srinivasan EVP Memory Technology
Sold, plan not stated 2×
$1.37M 16,049 at 85.06
18.8%
4 May 2017
Sivaram Srinivasan EVP Memory Technology
Sold, plan not stated
$3.58M 40,182 at 89.18
30.3%
3 May 2017
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated
$1.03M 11,631 at 88.49
14.5%
1 May 2017
LONG MARK P Pres WD Capital, CSO & CFO
Sold, plan not stated 3×
$5.03M 57,846 at 87.02
45.9%
1 May 2017
DeMaria Jacqueline EVP & Chief Human Res Officer
Sold, plan not stated 2×
$1.86M 21,410 at 87.02
30.4%
1 May 2017
BHATIA MANISH H EVP Silicon Operations
Sold, plan not stated 2×
$1.16M 13,295 at 87.02
17.3%
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