| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hwang Donghyun Thomas | SVP, Global Sales | 100 CHELMSFORD STREET, LOWELL | /s/ Ambra R. Roth, Attorney-in-Fact | 18 Nov 2025 | 0001480330 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTSI | Common Stock | Award | $8.71K | +83 | +0.16% | $104.94 | 53.5K | 14 Nov 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | The shares were purchased under the Issuer's Employee Stock Purchase Plan. |