| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Sciammas Maurice | EVP, WW Sales & Marketing | 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH | /s/ Saria Tseng, attorney-in-fact for Mr. Maurice Sciammas | 19 Nov 2025 | 0001360833 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MPWR | Common Stock | Sale | $377,237 | -431 | -0.24% | $875.26 | 175,841 | 19 Nov 2025 | Direct | F1 |
| transaction | MPWR | Common Stock | Sale | $824,023 | -940 | -0.53% | $876.62 | 174,901 | 19 Nov 2025 | Direct | F2 |
| transaction | MPWR | Common Stock | Sale | $1,733,841 | -1,976 | -1.1% | $877.45 | 172,925 | 19 Nov 2025 | Direct | F3 |
| transaction | MPWR | Common Stock | Sale | $1,628,832 | -1,854 | -1.1% | $878.55 | 171,071 | 19 Nov 2025 | Direct | F4 |
| transaction | MPWR | Common Stock | Sale | $1,729,176 | -1,966 | -1.1% | $879.54 | 169,105 | 19 Nov 2025 | Direct | F5 |
| transaction | MPWR | Common Stock | Sale | $3,325,070 | -3,776 | -2.2% | $880.58 | 165,329 | 19 Nov 2025 | Direct | F6 |
| transaction | MPWR | Common Stock | Sale | $2,176,226 | -2,469 | -1.5% | $881.42 | 162,860 | 19 Nov 2025 | Direct | F7 |
| transaction | MPWR | Common Stock | Sale | $2,951,113 | -3,344 | -2.1% | $882.51 | 159,516 | 19 Nov 2025 | Direct | F8 |
| transaction | MPWR | Common Stock | Sale | $5,754,236 | -6,513 | -4.1% | $883.50 | 153,003 | 19 Nov 2025 | Direct | F9 |
| transaction | MPWR | Common Stock | Sale | $1,900,662 | -2,149 | -1.4% | $884.44 | 150,854 | 19 Nov 2025 | Direct | F10 |
| transaction | MPWR | Common Stock | Sale | $1,538,304 | -1,738 | -1.2% | $885.10 | 149,116 | 19 Nov 2025 | Direct | F11 |
| transaction | MPWR | Common Stock | Sale | $717,668 | -810 | -0.54% | $886.01 | 148,306 | 19 Nov 2025 | Direct | F12 |
| holding | MPWR | Common Stock | 1,699 | 19 Nov 2025 | The Joseph Roger Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 2,000 | 19 Nov 2025 | Rosalind Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 1,299 | 19 Nov 2025 | Rosalind Sciammas Brokerage Account | ||||||
| holding | MPWR | Common Stock | 49,460 | 19 Nov 2025 | Sciammas Family Trust | ||||||
| holding | MPWR | Common Stock | 26,660 | 19 Nov 2025 | Various Sciammas GRATs | ||||||
| holding | MPWR | Common Stock | 1,699 | 19 Nov 2025 | The Patrick Francis Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 4,015 | 19 Nov 2025 | By Sciammas Trust 2020 | ||||||
| holding | MPWR | Common Stock | 5,000 | 19 Nov 2025 | Clement Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 1,000 | 19 Nov 2025 | Peter Rafferty and Eric Toothill 2021Trust | ||||||
| holding | MPWR | Common Stock | 1,699 | 19 Nov 2025 | The Chloe Liliane Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 1,499 | 19 Nov 2025 | Clement Sciammas Trust |
| Id | Content |
|---|---|
| F1 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $875.01 to $875.95. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F2 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $876.28 to $876.97. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F3 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $877.00 to $877.97. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F4 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $878.00 to $878.97. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F5 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $879.25 to $879.99. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F6 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $880.07 to $880.94. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F7 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $881.01 to $881.93. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F8 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $882.06 to $882.92. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F9 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $883.00 to $883.93. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F10 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $884.00 to $884.69. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F11 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $885.00 to $885.99. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |
| F12 | The price is the weighted average sale price for the transactions reported on this line. The prices for the transactions reported on this line range from $886.00 to $886.15. The reporting person undertakes to provide, upon request by the staff of the Securities and Exchange Commission, the issuer, or a security holder of the issuer, full information regarding the number of shares sold at each separate price. |