MTSI insider trading

Latest SEC Form 4 filings by MTSI officers, directors and 10% owners.

MTSI chart & news

Showing the last 30 days. 83 older filings are PRO.See full history →

Open-market buys (0)

No open-market insider buys in recent MTSI filings.

Open-market sales (2)

Kober John
Senior VP and CFO
$243.0K
Open-market sale · 1,027 sh @ $236.60
Traded 2026-10-26 · Filed 2026-10-27
Roth Ambra R.
SVP, GC and Secretary
$195.9K
Open-market sale · 653 sh @ $300.00
Traded 2026-10-01 · Filed 2026-10-05

Insider	Transaction	Shares	Price	Value	Traded	Filed
Kober John Senior VP and CFO	Open-market sale	1,027	$236.60	$243.0K	2026-10-26	2026-10-27
Roth Ambra R. SVP, GC and Secretary	Open-market sale	653	$300.00	$195.9K	2026-10-01	2026-10-05

Insider

Transaction

Price

Value

Traded

Filed

Kober John

Senior VP and CFO

Open-market sale

1,027

$236.60

$243.0K

2026-10-26

2026-10-27

Roth Ambra R.

SVP, GC and Secretary

Open-market sale

653

$300.00

$195.9K

2026-10-01

2026-10-05

Other filings

Grants, option exercises, tax withholding and gifts. These usually aren’t a view on the stock.

Dennehy Robert
Senior VP and COO
$62.9K
Tax withholding · 241 sh @ $260.92
Traded 2026-10-28 · Filed 2026-10-30
Hwang Donghyun Thomas
SVP, Global Sales
$59.8K
Tax withholding · 229 sh @ $260.92
Traded 2026-10-28 · Filed 2026-10-30
Roth Ambra R.
SVP, GC and Secretary
$72.8K
Tax withholding · 279 sh @ $260.92
Traded 2026-10-28 · Filed 2026-10-30
Kober John
Senior VP and CFO
$106.7K
Tax withholding · 409 sh @ $260.92
Traded 2026-10-28 · Filed 2026-10-30
Daly Stephen G
President and CEO
$427.1K
Tax withholding · 1,637 sh @ $260.92
Traded 2026-10-28 · Filed 2026-10-30
Roth Ambra R.
SVP, GC and Secretary
$71.1K
Tax withholding · 301 sh @ $236.24
Traded 2026-10-23 · Filed 2026-10-27
Dennehy Robert
Senior VP and COO
$61.4K
Tax withholding · 260 sh @ $236.24
Traded 2026-10-23 · Filed 2026-10-27
Hwang Donghyun Thomas
SVP, Global Sales
$58.1K
Tax withholding · 246 sh @ $236.24
Traded 2026-10-23 · Filed 2026-10-27
Kober John
Senior VP and CFO
$101.1K
Tax withholding · 428 sh @ $236.24
Traded 2026-10-23 · Filed 2026-10-27
Daly Stephen G
President and CEO
$367.6K
Tax withholding · 1,556 sh @ $236.24
Traded 2026-10-23 · Filed 2026-10-27
Roth Ambra R.
SVP, GC and Secretary
—
Grant / award · 1,401 sh
Traded 2026-10-21 · Filed 2026-10-24
Hwang Donghyun Thomas
SVP, Global Sales
—
Grant / award · 1,439 sh
Traded 2026-10-21 · Filed 2026-10-24
Dennehy Robert
Senior VP and COO
—
Grant / award · 2,104 sh
Traded 2026-10-21 · Filed 2026-10-23
Kober John
Senior VP and CFO
—
Grant / award · 2,277 sh
Traded 2026-10-21 · Filed 2026-10-23
Daly Stephen G
President and CEO
—
Grant / award · 5,941 sh
Traded 2026-10-21 · Filed 2026-10-23

Insider	Transaction	Shares	Price	Value	Traded	Filed
Dennehy Robert Senior VP and COO	Tax withholding	241	$260.92	$62.9K	2026-10-28	2026-10-30
Hwang Donghyun Thomas SVP, Global Sales	Tax withholding	229	$260.92	$59.8K	2026-10-28	2026-10-30
Roth Ambra R. SVP, GC and Secretary	Tax withholding	279	$260.92	$72.8K	2026-10-28	2026-10-30
Kober John Senior VP and CFO	Tax withholding	409	$260.92	$106.7K	2026-10-28	2026-10-30
Daly Stephen G President and CEO	Tax withholding	1,637	$260.92	$427.1K	2026-10-28	2026-10-30
Roth Ambra R. SVP, GC and Secretary	Tax withholding	301	$236.24	$71.1K	2026-10-23	2026-10-27
Dennehy Robert Senior VP and COO	Tax withholding	260	$236.24	$61.4K	2026-10-23	2026-10-27
Hwang Donghyun Thomas SVP, Global Sales	Tax withholding	246	$236.24	$58.1K	2026-10-23	2026-10-27
Kober John Senior VP and CFO	Tax withholding	428	$236.24	$101.1K	2026-10-23	2026-10-27
Daly Stephen G President and CEO	Tax withholding	1,556	$236.24	$367.6K	2026-10-23	2026-10-27
Roth Ambra R. SVP, GC and Secretary	Grant / award	1,401	—	—	2026-10-21	2026-10-24
Hwang Donghyun Thomas SVP, Global Sales	Grant / award	1,439	—	—	2026-10-21	2026-10-24
Dennehy Robert Senior VP and COO	Grant / award	2,104	—	—	2026-10-21	2026-10-23
Kober John Senior VP and CFO	Grant / award	2,277	—	—	2026-10-21	2026-10-23
Daly Stephen G President and CEO	Grant / award	5,941	—	—	2026-10-21	2026-10-23

Source: SEC Form 4 filings. For education and research only. Not financial advice.