Insider trading

Period: 120 months Stock: MTSI 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.

50 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.

50 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.

50 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.

50 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.
50 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
50 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.

50 decisions over 120 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
8 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$19.95M 150,000 at 133.03
4.5%
Not planned
18 Sep 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$19.96M 150,000 at 133.09
4.3%
Not planned
15 Sep 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will 2×
$19.92M 150,424 at 132.43
4.0%
Not planned
12 Sep 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will 2×
$11.94M 89,868 at 132.86
2.3%
Not planned
11 Sep 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will 2×
$10.72M 80,891 at 132.49
2.1%
Not planned
5 Sep 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will 3×
$14.89M 113,275 at 131.41
2.8%
Not planned
21 May 2025
OCAMPO SUSAN Director · indirect
Sold at will 2×
$12.95M 104,449 at 123.98
2.5%
Not planned
13 May 2025
OCAMPO SUSAN Director · indirect
Sold at will 3×
$18.58M 150,000 at 123.87
3.4%
Not planned
12 May 2025
OCAMPO SUSAN Director · indirect
Sold at will 6×
$37.07M 300,000 at 123.58
6.4%
Not planned
20 Feb 2025
OCAMPO SUSAN Director · indirect
Sold at will
$12.10M 97,527 at 124.08
2.0%
Not planned
18 Feb 2025
OCAMPO SUSAN Director · indirect
Sold at will
$37.24M 300,000 at 124.13
5.9%
Not planned
14 Feb 2025
OCAMPO SUSAN Director · indirect
Sold at will 2×
$35.34M 286,635 at 123.31
5.3%
Not planned
26 Nov 2024
OCAMPO SUSAN Director · indirect
Sold at will 4×
$25.20M 187,562 at 134.34
2.9%
Not planned
19 Nov 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$70.98M 600,000 at 118.30
9.7%
Not planned
15 Nov 2024
OCAMPO SUSAN Director · indirect
Sold at will 3×
$13.08M 105,782 at 123.67
1.8%
Not planned
29 Aug 2024
OCAMPO SUSAN Director · indirect
Sold at will 3×
$16.73M 152,719 at 109.54
2.5%
Not planned
16 Aug 2024
OCAMPO SUSAN Director · indirect
Sold at will
$16.45M 154,905 at 106.17
2.4%
Not planned
15 Aug 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$32.52M 305,395 at 106.48
4.5%
Not planned
24 May 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$10.56M 102,722 at 102.76
1.4%
Not planned
22 May 2024
OCAMPO SUSAN Director · indirect
Sold at will
$13.45M 131,187 at 102.53
1.8%
Not planned
20 May 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$16.58M 161,140 at 102.88
2.2%
Not planned
15 May 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$15.42M 150,000 at 102.82
1.9%
Not planned
22 Feb 2024
OCAMPO SUSAN Director · indirect
Sold at will 3×
$12.29M 140,711 at 87.32
2.0%
Not planned
12 Feb 2024
OCAMPO SUSAN Director · indirect
Sold at will 3×
$17.00M 200,000 at 85.00
2.7%
Not planned
9 Feb 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$16.56M 200,000 at 82.81
2.6%
Not planned
8 Feb 2024
OCAMPO SUSAN Director · indirect
Sold at will 4×
$16.48M 200,000 at 82.39
2.5%
Not planned
7 Feb 2024
OCAMPO SUSAN Director · indirect
Sold at will 2×
$16.16M 200,000 at 80.79
2.5%
Not planned
14 Nov 2023
OCAMPO JOHN L Director · indirect
Sold at will 9×
$16.83M 205,480 at 81.92
100%
Sold half or more
15 Nov 2022
OCAMPO JOHN L Director · indirect
Sold, plan not stated 3×
$17.08M 238,678 at 71.57
2.9%
11 Nov 2022
OCAMPO JOHN L Director · indirect
Sold, plan not stated 3×
$14.23M 202,417 at 70.29
2.4%
10 Nov 2022
OCAMPO JOHN L Director · indirect
Sold, plan not stated 8×
$10.92M 161,134 at 67.79
38.6%
8 Aug 2022
CHUNG PETER Y Director · indirect
Sold, plan not stated
$50.17M 850,311 at 59.00
95.2%
Sold half or more
27 Aug 2021
OCAMPO JOHN L Director · indirect
Sold, plan not stated 2×
$12.93M 207,500 at 62.32
2.4%
11 Nov 2020
CHUNG PETER Y Director · indirect
Sold, plan not stated
$17.85M 420,368 at 42.47
32.1%
2 Feb 2017
CHUNG PETER Y Director · indirect
Sold, plan not stated
$55.94M 1,201,635 at 46.55
98.6%
Sold half or more
Showing 1–50 of 50.