Insider trading

Period: 12 months Stock: MTSI Minimum amount: $10M × Plan: Discretionary × + 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.

15 decisions over 12 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.

15 decisions over 12 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.

15 decisions over 12 months
The trade

Minimum amount

Hides rows under this value. The amount is the shares traded times the price on the filing.

15 decisions over 12 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.
15 decisions over 12 months Remove this filter
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
15 decisions over 12 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.

15 decisions over 12 months
Stock
Insider
Type ?
Why it stands out
14 May 2026
CHUNG PETER Y Director · indirect
Sold at will
$16.36M 43,268 at 378.20
86.5%
Sold half or more
25 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will 3×
$66.60M 261,763 at 254.43
6.5%
Not planned
24 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will
$13.38M 53,509 at 250.08
1.3%
Not planned
17 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will 2×
$19.66M 80,123 at 245.32
1.9%
Not planned
13 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will 2×
$15.01M 62,050 at 241.85
1.5%
Not planned
12 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will 3×
$13.90M 57,827 at 240.32
1.4%
Not planned
6 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will
$23.58M 100,000 at 235.85
2.3%
Not planned
3 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will
$23.03M 100,000 at 230.29
2.2%
Not planned
9 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$23.01M 121,067 at 190.07
2.6%
Not planned
5 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$14.57M 76,642 at 190.10
1.6%
Not planned
3 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$17.25M 95,829 at 180.06
2.0%
Not planned
6 Nov 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$16.01M 100,000 at 160.08
2.3%
Not planned
28 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$18.43M 124,515 at 148.02
4.6%
Not planned
16 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$14.32M 102,261 at 140.06
3.5%
Not planned
15 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$20.40M 150,000 at 136.02
4.8%
Not planned
Showing 1–15 of 15.