| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| OCAMPO SUSAN | 10%+ Owner | BOX #88439, HONOLULU | /s/ Susan Ocampo | 26 Feb 2026 | 0001252243 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MTSI | Common Stock | Sale | $13,381,370 | -53,509 | -1.3% | $250.08 | 4,021,658 | 24 Feb 2026 | By Ocampo Family Trusts | F1, F3 |
| transaction | MTSI | Common Stock | Sale | $10,269,179 | -41,012 | -1% | $250.39 | 3,980,646 | 25 Feb 2026 | By Ocampo Family Trusts | F1, F4 |
| transaction | MTSI | Common Stock | Sale | $583,440 | -2,323 | -0.06% | $251.16 | 3,978,323 | 25 Feb 2026 | By Ocampo Family Trusts | F1, F5 |
| transaction | MTSI | Common Stock | Sale | $55,747,697 | -218,428 | -5.5% | $255.22 | 3,759,895 | 25 Feb 2026 | By Ocampo Family Trusts | F1, F6 |
| transaction | MTSI | Common Stock | Gift | $0 | -174,465 | -4.6% | $0.000000 | 3,585,430 | 25 Feb 2026 | By Ocampo Family Trusts | F1, F7 |
| holding | MTSI | Common Stock | 2,577,334 | 24 Feb 2026 | By trusts for children | F1, F2 | |||||
| holding | MTSI | Common Stock | 938,631 | 24 Feb 2026 | By GRAT | F1 |
Susan Ocampo is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
| 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 $250 to $250.755. 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. |
| F4 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $250 to $250.79. 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. |
| F5 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $251.035 to $251.395. 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. |
| F6 | The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $255.00 to $255.96. 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. |
| F7 | Represents a bona fide gift of shares to a charitable donor-advised fund in which the Reporting Person has no pecuniary interest. |
Reporting person ceased to be a 10% owner on 2/25/2026 and is no longer subject to Section 16.