| 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 | -$377K | -431 | -0.24% | $875.26 | 176K | 19 Nov 2025 | Direct | F1 |
| transaction | MPWR | Common Stock | Sale | -$824K | -940 | -0.53% | $876.62 | 175K | 19 Nov 2025 | Direct | F2 |
| transaction | MPWR | Common Stock | Sale | -$1.73M | -1.98K | -1.13% | $877.45 | 173K | 19 Nov 2025 | Direct | F3 |
| transaction | MPWR | Common Stock | Sale | -$1.63M | -1.85K | -1.07% | $878.55 | 171K | 19 Nov 2025 | Direct | F4 |
| transaction | MPWR | Common Stock | Sale | -$1.73M | -1.97K | -1.15% | $879.54 | 169K | 19 Nov 2025 | Direct | F5 |
| transaction | MPWR | Common Stock | Sale | -$3.33M | -3.78K | -2.23% | $880.58 | 165K | 19 Nov 2025 | Direct | F6 |
| transaction | MPWR | Common Stock | Sale | -$2.18M | -2.47K | -1.49% | $881.42 | 163K | 19 Nov 2025 | Direct | F7 |
| transaction | MPWR | Common Stock | Sale | -$2.95M | -3.34K | -2.05% | $882.51 | 160K | 19 Nov 2025 | Direct | F8 |
| transaction | MPWR | Common Stock | Sale | -$5.75M | -6.51K | -4.08% | $883.50 | 153K | 19 Nov 2025 | Direct | F9 |
| transaction | MPWR | Common Stock | Sale | -$1.9M | -2.15K | -1.4% | $884.44 | 151K | 19 Nov 2025 | Direct | F10 |
| transaction | MPWR | Common Stock | Sale | -$1.54M | -1.74K | -1.15% | $885.10 | 149K | 19 Nov 2025 | Direct | F11 |
| transaction | MPWR | Common Stock | Sale | -$718K | -810 | -0.54% | $886.01 | 148K | 19 Nov 2025 | Direct | F12 |
| holding | MPWR | Common Stock | 1.7K | 19 Nov 2025 | The Joseph Roger Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 2K | 19 Nov 2025 | Rosalind Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 1.3K | 19 Nov 2025 | Rosalind Sciammas Brokerage Account | ||||||
| holding | MPWR | Common Stock | 49.5K | 19 Nov 2025 | Sciammas Family Trust | ||||||
| holding | MPWR | Common Stock | 26.7K | 19 Nov 2025 | Various Sciammas GRATs | ||||||
| holding | MPWR | Common Stock | 1.7K | 19 Nov 2025 | The Patrick Francis Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 4.02K | 19 Nov 2025 | By Sciammas Trust 2020 | ||||||
| holding | MPWR | Common Stock | 5K | 19 Nov 2025 | Clement Sciammas Family 2021 Trust | ||||||
| holding | MPWR | Common Stock | 1K | 19 Nov 2025 | Peter Rafferty and Eric Toothill 2021Trust | ||||||
| holding | MPWR | Common Stock | 1.7K | 19 Nov 2025 | The Chloe Liliane Sciammas 2020 Irrevocable Trust | ||||||
| holding | MPWR | Common Stock | 1.5K | 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. |