| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Lee Victor K | Director | 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH | /s/ Saria Tseng, attorney-in-fact for Mr. Victor K. Lee | 24 Dec 2025 | 0001292133 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MPWR | Common Stock | Sale | $187,091 | -197 | -0.67% | $949.70 | 29,370 | 24 Dec 2025 | Direct | F1, F2 |
| transaction | MPWR | Common Stock | Sale | $266,179 | -280 | -0.95% | $950.64 | 29,090 | 24 Dec 2025 | Direct | F1, F3 |
| transaction | MPWR | Common Stock | Sale | $152,256 | -160 | -0.55% | $951.60 | 28,930 | 24 Dec 2025 | Direct | F1, F4 |
| transaction | MPWR | Common Stock | Sale | $79,047 | -83 | -0.29% | $952.37 | 28,847 | 24 Dec 2025 | Direct | F1, F5 |
| transaction | MPWR | Common Stock | Sale | $190,740 | -200 | -0.69% | $953.70 | 28,647 | 24 Dec 2025 | Direct | F1, F6 |
| transaction | MPWR | Common Stock | Sale | $76,406 | -80 | -0.28% | $955.08 | 28,567 | 24 Dec 2025 | Direct | F1, F7 |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | These transactions were made pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 8/25/2025. |
| 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 $949.23 to $949.98. 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 $950.30 to $950.90. 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 $951.24 to $951.84. 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 $952.23 to $952.76. 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 $953.31 to $953.99. 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. |
| 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 $955.05 to $955.10. 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. |