Insider trading

Period: 120 months Stock: STX Role: CEO × + Add filter Clear all
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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.

46 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.

46 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.

46 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.

46 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.
46 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
46 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.

46 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
1 Oct 2026
Sold on a plan 44×
$27.67M 30,000 at 922.35
7.7%
Planned (10b5-1)
15 Sep 2026
Sold at will
$75.58M 97,889 at 772.14
20.6%
Not planned
14 Sep 2026
Sold at will
$1.46M 1,870 at 781.23
0.6%
Not planned
10 Sep 2026
Sold at will 2×
$2.46M 2,849 at 862.13
1.0%
Not planned
1 Sep 2026
Sold on a plan 26×
$24.49M 30,000 at 816.28
9.2%
Planned (10b5-1)
21 Aug 2026
Sold at will 3×
$15.41M 18,139 at 849.35
5.7%
Not planned
3 Aug 2026
Sold on a plan 48×
$24.51M 30,000 at 817.04
9.2%
Planned (10b5-1)
1 Jul 2026
Sold on a plan 44×
$27.44M 30,000 at 914.82
8.8%
Planned (10b5-1)
12 Jun 2026
Sold at will
$1.56M 1,768 at 880.19
0.5%
Not planned
10 Jun 2026
Sold at will 2×
$2.35M 2,855 at 821.74
0.9%
Not planned
1 Jun 2026
Sold on a plan 49×
$27.35M 30,000 at 911.59
8.5%
Planned (10b5-1)
20 May 2026
Sold on a plan 19×
$22.54M 30,000 at 751.29
8.1%
Planned (10b5-1)
1 Apr 2026
Sold on a plan 21×
$8.41M 20,000 at 420.73
5.3%
Planned (10b5-1)
19 Mar 2026
Sold at will
$10.00M 24,584 at 406.77
6.1%
Not planned
2 Mar 2026
Sold on a plan 22×
$7.70M 20,000 at 384.76
4.8%
Planned (10b5-1)
2 Feb 2026
Sold on a plan 16×
$8.59M 20,000 at 429.27
4.7%
Planned (10b5-1)
2 Jan 2026
Sold on a plan 9×
$5.71M 20,000 at 285.56
4.4%
Planned (10b5-1)
1 Dec 2025
Sold on a plan 8×
$5.42M 20,000 at 271.03
4.3%
Planned (10b5-1)
3 Nov 2025
Sold on a plan 13×
$5.26M 20,000 at 262.82
4.1%
Planned (10b5-1)
1 Oct 2025
Sold on a plan 21×
$5.00M 20,000 at 249.90
4.0%
Planned (10b5-1)
2 Sep 2025
Sold on a plan 6×
$3.38M 20,000 at 168.97
4.2%
Planned (10b5-1)
1 Aug 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 6×
$3.07M 20,000 at 153.75
4.0%
Planned (10b5-1)
1 Jul 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$2.89M 20,000 at 144.66
3.9%
Planned (10b5-1)
9 Jun 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan
$7.08M 54,347 at 130.19
9.5%
Planned (10b5-1)
3 Jun 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan
$6.01M 50,000 at 120.27
8.8%
Planned (10b5-1)
2 Jun 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$2.38M 20,000 at 118.88
3.7%
Planned (10b5-1)
22 May 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 6×
$7.66M 70,000 at 109.47
12.6%
Planned (10b5-1)
1 Apr 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 2×
$1.69M 20,000 at 84.56
3.5%
Planned (10b5-1)
3 Mar 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 4×
$2.03M 20,000 at 101.57
3.4%
Planned (10b5-1)
3 Feb 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$1.88M 20,000 at 94.13
3.3%
Planned (10b5-1)
2 Jan 2025
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 2×
$1.73M 20,000 at 86.65
3.2%
Planned (10b5-1)
2 Dec 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 4×
$2.06M 20,000 at 102.83
3.1%
Planned (10b5-1)
1 Nov 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$1.99M 20,000 at 99.53
3.0%
Planned (10b5-1)
1 Oct 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$2.15M 20,000 at 107.68
3.0%
Planned (10b5-1)
26 Sep 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan
$15.62M 141,785 at 110.18
17.5%
Planned (10b5-1)
3 Sep 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 3×
$1.94M 20,000 at 97.18
3.1%
Planned (10b5-1)
7 Aug 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 4×
$1.87M 20,000 at 93.46
3.0%
Planned (10b5-1)
9 Mar 2024
MOSLEY WILLIAM D Chief Executive Officer
Sold at will
$92.69K 1,000 at 92.69
0.1%
Not planned
9 Dec 2023
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan
$112.50K 1,396 at 80.59
0.2%
Planned (10b5-1)
8 Dec 2023
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan
$12.29M 153,188 at 80.21
18.6%
Planned (10b5-1)
1 Sep 2023
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 4×
$7.21M 98,860 at 72.97
13.8%
Planned (10b5-1)
31 Aug 2023
MOSLEY WILLIAM D Chief Executive Officer
Sold on a plan 4×
$14.06M 200,000 at 70.28
24.5%
Planned (10b5-1)
1 Sep 2021
MOSLEY WILLIAM D Chief Executive Officer
Sold, plan not stated 2×
$2.74M 31,500 at 86.95
5.4%
3 May 2021
MOSLEY WILLIAM D Chief Executive Officer
Sold, plan not stated 2×
$7.19M 77,754 at 92.49
13.6%
6 Sep 2019
MOSLEY WILLIAM D Chief Executive Officer
Sold, plan not stated
$4.89M 90,000 at 54.31
25.5%
25 Apr 2017
LUCZO STEPHEN J Chairman & CEO · indirect
Sold, plan not stated
$5.00M 100,000 at 50.00
7.5%
Showing 1–46 of 46.