| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| OCAMPO SUSAN | 10%+ Owner | BOX #88439, HONOLULU | /s/ Susan Ocampo | 2025-12-05 | 0001252243 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTSI | Common Stock | Sale | -$435K | -2.29K | -0.05% | $190.00 | 4.68M | Dec 4, 2025 | By Ocampo Family Trusts | F1 |
| transaction | MTSI | Common Stock | Sale | -$14.6M | -76.6K | -1.64% | $190.10 | 4.6M | Dec 5, 2025 | By Ocampo Family Trusts | F1, F3 |
| holding | MTSI | Common Stock | 2.58M | Dec 4, 2025 | By trusts for children | F1, F2 | |||||
| holding | MTSI | Common Stock | 939K | Dec 4, 2025 | By GRAT | F1 |
| Id | Content |
|---|---|
| F1 | The Reporting Person is a trustee of two Ocampo Family Trusts, the GRAT and each of the following trusts for the benefit of her children: (i) a trust for her son; (ii) a trust for her daughter; and (iii) a trust for her son. |
| F2 | 734,944 of such shares are held by a trust for the Reporting Person's son; 921,195 of such shares are held by a trust for the Reporting Person's daughter; and 921,195 of such shares are held by a trust for the Reporting Person's son. |
| F3 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $190.00 to $190.35. The Reporting Person undertakes to provide to the Issuer, any shareholder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |