Insider trading

Period: 120 months Stock: MTSI Minimum amount: $100K × + 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.

392 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.

392 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.

392 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.

392 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.
392 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
392 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.

392 decisions over 120 months
Stock
Insider
Type ?
Why it stands out
1 Oct 2026
Roth Ambra R. SVP, GC and Secretary
Sold on a plan
$195.90K 653 at 300.00
6.6%
Planned (10b5-1)
17 Aug 2026
Kober John Senior VP and CFO
Sold on a plan 8×
$2.41M 7,389 at 326.08
18.0%
Planned (10b5-1)
25 Jun 2026
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 12×
$1.01M 2,620 at 383.87
8.1%
Planned (10b5-1)
29 May 2026
Daly Stephen G President and CEO
Sold on a plan 19×
$5.79M 15,828 at 365.75
29.2%
Planned (10b5-1)
18 May 2026
Kober John Senior VP and CFO
Sold on a plan 13×
$2.75M 7,644 at 359.25
15.7%
Planned (10b5-1)
18 May 2026
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 11×
$935.87K 2,595 at 360.64
7.4%
Planned (10b5-1)
14 May 2026
CHUNG PETER Y Director · indirect
Sold at will
$16.36M 43,268 at 378.20
86.5%
Sold half or more
13 May 2026
BLAND CHARLES R Director
Sold at will
$304.00K 800 at 380.00
5.3%
Not planned
11 May 2026
RIBAR GEOFFREY G Director
Sold at will
$587.27K 1,623 at 361.84
11.4%
Not planned
30 Apr 2026
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 9×
$1.03M 3,718 at 276.74
9.6%
Planned (10b5-1)
26 Feb 2026
Dennehy Robert Senior VP and COO
Sold on a plan 9×
$4.51M 18,398 at 245.25
58.9%
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
25 Feb 2026
RIBAR GEOFFREY G Director
Sold at will
$569.06K 2,244 at 253.59
14.3%
Not planned
25 Feb 2026
Ritchie John Director
Sold at will
$401.12K 1,573 at 255.00
15.3%
Not planned
24 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will
$13.38M 53,509 at 250.08
1.3%
Not planned
18 Feb 2026
OCAMPO SUSAN 10% owner · indirect
Sold at will
$789.00K 3,156 at 250.00
0.1%
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
17 Feb 2026
Kober John Senior VP and CFO
Sold on a plan 10×
$1.75M 7,196 at 243.07
12.9%
Planned (10b5-1)
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
12 Feb 2026
BLAND CHARLES R Director
Sold at will
$240.82K 1,000 at 240.82
6.5%
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
2 Feb 2026
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 10×
$1.19M 5,274 at 226.06
12.0%
Planned (10b5-1)
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
4 Dec 2025
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 7×
$811.57K 4,372 at 185.63
9.1%
Planned (10b5-1)
4 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$435.29K 2,291 at 190.00
0.0%
Not planned
3 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$17.25M 95,829 at 180.06
2.0%
Not planned
2 Dec 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$750.78K 4,171 at 180.00
0.1%
Not planned
1 Dec 2025
Daly Stephen G President and CEO
Sold on a plan 6×
$3.46M 20,000 at 173.16
26.9%
Planned (10b5-1)
24 Nov 2025
BLAND CHARLES R Director
Sold at will
$660.00K 4,000 at 165.00
20.7%
Not planned
19 Nov 2025
Roth Ambra R. SVP, GC and Secretary
Sold on a plan 6×
$2.78M 17,268 at 160.91
63.7%
Sold half or more
19 Nov 2025
Hwang Donghyun Thomas SVP, Global Sales
Sold on a plan 5×
$610.38K 3,789 at 161.09
7.1%
Planned (10b5-1)
14 Nov 2025
BLAND CHARLES R Director
Sold at will
$157.79K 1,000 at 157.79
4.8%
Not planned
10 Nov 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will 4×
$7.42M 43,289 at 171.47
1.0%
Not planned
10 Nov 2025
Daly Stephen G President and CEO
Sold on a plan 9×
$3.51M 20,000 at 175.73
21.2%
Planned (10b5-1)
10 Nov 2025
Kober John Senior VP and CFO
Sold on a plan
$170.71K 972 at 175.63
1.7%
Planned (10b5-1)
7 Nov 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$9.64M 56,711 at 170.01
1.3%
Not planned
7 Nov 2025
Kober John Senior VP and CFO
Sold on a plan 7×
$3.10M 18,506 at 167.58
24.4%
Planned (10b5-1)
6 Nov 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$16.01M 100,000 at 160.08
2.3%
Not planned
29 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$1.25M 8,358 at 150.01
0.3%
Not planned
28 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$18.43M 124,515 at 148.02
4.6%
Not planned
28 Oct 2025
Kober John Senior VP and CFO
Sold on a plan 2×
$217.85K 1,497 at 145.53
3.3%
Planned (10b5-1)
27 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$8.92M 60,705 at 147.02
2.2%
Not planned
24 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$6.37M 44,809 at 142.10
1.6%
Not planned
23 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$262.54K 1,862 at 141.00
0.1%
Not planned
20 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$5.18M 36,762 at 141.01
1.3%
Not planned
16 Oct 2025
OCAMPO SUSAN 10% owner · indirect
Sold at will
$14.32M 102,261 at 140.06
3.5%
Not planned
16 Oct 2025
Dennehy Robert SVP, Operations
Sold on a plan
$578.00K 4,128 at 140.02
38.7%
Planned (10b5-1)
Showing 1–50 of 392. Page 1 of 8 Older →