Insider trading

Period: 120 months Stock: MPWR Role: Other officers × + 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.

404 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.

404 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.

404 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.

404 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.
404 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
404 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.

404 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
3 Aug 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$40.32K 30 at 1,343.94
2.6%
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)
1 Jul 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$40.55K 30 at 1,351.61
2.5%
Planned (10b5-1)
1 Jun 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$46.02K 30 at 1,533.95
2.5%
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
22 May 2026
Tseng Saria EVP & General Counsel
Sold at will
$7.93M 5,000 at 1,586.43
3.2%
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
5 May 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold at will
$601.85K 380 at 1,583.81
29.3%
Not planned
4 May 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$47.66K 30 at 1,588.73
2.4%
Planned (10b5-1)
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)
6 Apr 2026
Tseng Saria EVP & General Counsel
Sold on a plan 8×
$8.92M 7,636 at 1,167.95
4.4%
Planned (10b5-1)
1 Apr 2026
Tseng Saria EVP & General Counsel
Sold on a plan 5×
$1.59M 1,400 at 1,133.52
0.8%
Planned (10b5-1)
1 Apr 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$33.49K 30 at 1,116.44
2.4%
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)
20 Mar 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$32.85K 30 at 1,095.07
2.3%
Planned (10b5-1)
11 Feb 2026
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold at will
$236.00K 200 at 1,179.98
13.3%
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
Xiao Deming EVP, Global Operations
Sold at will
$26.79M 22,875 at 1,171.16
8.8%
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
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
24 Nov 2025
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$3.56M 3,976 at 895.23
2.7%
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
5 Nov 2025
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold at will
$197.36K 200 at 986.81
13.3%
Not planned
24 Oct 2025
Tseng Saria EVP & General Counsel
Sold on a plan
$1.41M 1,300 at 1,087.62
1.0%
Planned (10b5-1)
16 Oct 2025
Tseng Saria EVP & General Counsel
Sold on a plan 2×
$2.88M 2,812 at 1,025.72
2.2%
Planned (10b5-1)
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)
1 Aug 2025
Xiao Deming EVP, Global Operations
Sold on a plan
$31.20M 39,999 at 780.00
24.8%
Planned (10b5-1)
12 May 2025
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan
$8.41M 12,000 at 701.00
74.9%
Sold half or more
10 Feb 2025
Tseng Saria EVP & General Counsel
Sold at will
$475.44K 663 at 717.10
0.4%
Not planned
10 Feb 2025
Xiao Deming EVP, Global Operations
Sold at will
$474.72K 662 at 717.10
0.4%
Not planned
10 Feb 2025
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$474.72K 662 at 717.10
0.6%
Not planned
7 Feb 2025
Sciammas Maurice EVP, WW Sales & Marketing · indirect
Sold on a plan 4×
$4.91M 7,000 at 701.98
30.4%
Planned (10b5-1)
8 Nov 2024
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$662.61K 866 at 765.14
0.8%
Not planned
8 Nov 2024
Xiao Deming EVP, Global Operations
Sold at will
$662.61K 866 at 765.14
0.5%
Not planned
8 Nov 2024
Tseng Saria EVP & General Counsel
Sold at will
$662.61K 866 at 765.14
0.5%
Not planned
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)
27 Aug 2024
Xiao Deming EVP, Global Operations · indirect
Sold at will
$8.80M 9,259 at 950.00
31.2%
Not planned
22 Aug 2024
Xiao Deming EVP, Global Operations · indirect
Sold at will
$9.50M 10,000 at 950.00
25.2%
Not planned
8 Aug 2024
Tseng Saria EVP & General Counsel
Sold at will
$668.64K 859 at 778.39
0.5%
Not planned
8 Aug 2024
Xiao Deming EVP, Global Operations
Sold at will
$668.64K 859 at 778.39
0.4%
Not planned
8 Aug 2024
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$668.64K 859 at 778.39
0.7%
Not planned
22 Jul 2024
Sciammas Maurice EVP, WW Sales & Marketing
Sold at will
$2.67M 3,205 at 831.58
2.7%
Not planned
22 Jul 2024
Tseng Saria EVP & General Counsel
Sold at will
$2.67M 3,205 at 831.58
1.9%
Not planned
22 Jul 2024
Xiao Deming EVP, Global Operations
Sold at will
$2.67M 3,205 at 831.58
1.6%
Not planned
8 Jul 2024
Sciammas Maurice EVP, WW Sales & Marketing
Sold on a plan 10×
$9.28M 10,999 at 843.83
8.5%
Planned (10b5-1)
2 Jul 2024
Tseng Saria EVP & General Counsel
Sold on a plan
$1.53M 1,858 at 824.65
1.1%
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)
Showing 1–50 of 404. Page 1 of 9 Older →