Insider trading

Period: 120 months Stock: MPWR Minimum amount: $10M × + 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.

45 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.

45 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.

45 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.

45 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.
45 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
45 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.

45 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
28 Sep 2026
Sold on a plan 8×
$40.35M 30,000 at 1,344.97
3.5%
Planned (10b5-1)
15 Jul 2026
Sciammas Maurice EVP, WW Sales & Marketing
Sold on a plan 18×
$20.25M 15,000 at 1,349.73
9.0%
Planned (10b5-1)
27 May 2026
Tseng Saria EVP & General Counsel
Sold at will
$12.86M 7,565 at 1,700.00
5.0%
Not planned
18 May 2026
Sold at will 13×
$59.31M 40,000 at 1,482.75
4.5%
Not planned
15 May 2026
Sciammas Maurice EVP, WW Sales & Marketing
Sold on a plan 8×
$18.74M 12,000 at 1,561.40
6.7%
Planned (10b5-1)
6 May 2026
Xiao Deming EVP, Global Operations
Sold at will 4×
$49.64M 30,000 at 1,654.55
12.7%
Not planned
6 May 2026
Elmiger Eugen J Director
Sold at will 9×
$19.02M 12,000 at 1,584.96
69.0%
Sold half or more
8 Apr 2026
Tseng Saria EVP & General Counsel
Sold on a plan 10×
$11.70M 8,963 at 1,305.22
5.4%
Planned (10b5-1)
30 Mar 2026
Tseng Saria EVP & General Counsel
Sold on a plan 8×
$25.94M 25,674 at 1,010.50
12.8%
Planned (10b5-1)
12 Feb 2026
Sold on a plan 12×
$38.67M 33,000 at 1,171.83
3.6%
Planned (10b5-1)
11 Feb 2026
Sold on a plan 10×
$39.23M 33,000 at 1,188.92
3.5%
Planned (10b5-1)
10 Feb 2026
Sold on a plan 9×
$38.84M 34,000 at 1,142.28
3.4%
Planned (10b5-1)
6 Feb 2026
Sold at will
$64.32M 54,923 at 1,171.16
5.3%
Not planned
6 Feb 2026
Xiao Deming EVP, Global Operations
Sold at will
$26.79M 22,875 at 1,171.16
8.8%
Not planned
6 Feb 2026
Tseng Saria EVP & General Counsel
Sold at will
$26.79M 22,875 at 1,171.16
10.2%
Not planned
6 Feb 2026
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$26.79M 22,875 at 1,171.16
11.4%
Not planned
6 Feb 2026
BLEGEN THEODORE EVP and CFO
Sold at will
$25.44M 21,725 at 1,171.16
20.9%
Not planned
26 Nov 2025
Tseng Saria EVP & General Counsel
Sold at will 9×
$18.53M 20,000 at 926.47
10.7%
Not planned
25 Nov 2025
Tseng Saria EVP & General Counsel
Sold at will 19×
$18.08M 20,000 at 904.18
9.6%
Not planned
19 Nov 2025
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will 24×
$30.78M 35,000 at 879.36
19.1%
Not planned
12 Nov 2025
Sold at will 19×
$35.72M 37,000 at 965.52
3.9%
Not planned
11 Nov 2025
Sold at will 17×
$38.34M 40,000 at 958.39
4.0%
Not planned
15 Oct 2025
Tseng Saria EVP & General Counsel
Sold on a plan
$14.25M 14,028 at 1,016.18
9.7%
Planned (10b5-1)
18 Sep 2025
Tseng Saria EVP & General Counsel
Sold on a plan
$13.27M 14,510 at 914.45
9.1%
Planned (10b5-1)
15 Aug 2025
Sold at will 11×
$16.77M 20,231 at 829.10
2.4%
Not planned
1 Aug 2025
Xiao Deming EVP, Global Operations
Sold on a plan
$31.20M 39,999 at 780.00
24.8%
Planned (10b5-1)
7 Oct 2024
Sciammas Maurice EVP, WW Sales & Marketing
Sold on a plan 11×
$10.23M 11,000 at 929.59
9.6%
Planned (10b5-1)
1 Jul 2024
Tseng Saria EVP & General Counsel
Sold on a plan 18×
$29.98M 37,093 at 808.20
18.2%
Planned (10b5-1)
4 Jan 2024
Sold at will
$34.20M 58,654 at 583.14
5.9%
Not planned
4 Jan 2024
Sciammas Maurice Sr. V.P.of Sales and Marketing
Sold at will
$16.13M 27,659 at 583.14
15.2%
Not planned
4 Jan 2024
Sold at will
$16.10M 27,613 at 583.14
24.0%
Not planned
4 Jan 2024
Xiao Deming Pres. of MPS Asia Operations
Sold at will
$14.76M 25,314 at 583.14
10.2%
Not planned
4 Jan 2024
Tseng Saria Executive VP & General Counsel
Sold at will
$14.76M 25,314 at 583.14
10.9%
Not planned
13 Dec 2023
Tseng Saria Executive VP & General Counsel
Sold on a plan
$11.17M 18,610 at 600.00
7.4%
Planned (10b5-1)
21 Jul 2023
Sold at will
$15.41M 28,845 at 534.23
2.7%
Not planned
8 Feb 2023
Sold, plan not stated
$10.40M 22,483 at 462.41
2.1%
12 Dec 2022
Moyer James C Director · indirect
Sold, plan not stated 7×
$15.46M 40,000 at 386.53
48.2%
7 Feb 2022
Sold, plan not stated
$11.83M 29,638 at 399.28
2.7%
30 Mar 2021
Sold, plan not stated 11×
$21.56M 63,583 at 339.06
5.8%
5 Feb 2021
Sold, plan not stated
$19.32M 52,729 at 366.34
4.5%
5 Jan 2021
Sold, plan not stated 14×
$16.45M 44,784 at 367.29
5.0%
7 Apr 2020
Sold, plan not stated
$16.32M 95,979 at 170.00
8.2%
6 Feb 2020
Sold, plan not stated
$13.03M 70,886 at 183.75
5.4%
7 Jan 2020
Sold, plan not stated
$11.65M 65,813 at 176.99
6.2%
12 Feb 2018
Sold, plan not stated
$10.41M 96,181 at 108.19
6.8%
Showing 1–45 of 45.