| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hsing Michael | CEO, Director | 1555 PALM BEACH LAKES BLVD., WEST PALM BEACH | /s/ Saria Tseng, attorney-in-fact for Mr. Michael R. Hsing | 13 Feb 2026 | 0001308676 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MPWR | Common Stock | Sale | $420,612 | -363 | -0.04% | $1158.71 | 953,871 | 11 Feb 2026 | Direct | F1, F2 |
| transaction | MPWR | Common Stock | Sale | $1,589,628 | -1,366 | -0.14% | $1163.71 | 952,505 | 11 Feb 2026 | Direct | F1, F3 |
| transaction | MPWR | Common Stock | Sale | $1,789,961 | -1,533 | -0.16% | $1167.62 | 950,972 | 11 Feb 2026 | Direct | F1, F4 |
| transaction | MPWR | Common Stock | Sale | $2,330,592 | -1,987 | -0.21% | $1172.92 | 948,985 | 11 Feb 2026 | Direct | F1, F5 |
| transaction | MPWR | Common Stock | Sale | $3,296,298 | -2,799 | -0.29% | $1177.67 | 946,186 | 11 Feb 2026 | Direct | F1, F6 |
| transaction | MPWR | Common Stock | Sale | $1,823,908 | -1,542 | -0.16% | $1182.82 | 944,644 | 11 Feb 2026 | Direct | F1, F7 |
| transaction | MPWR | Common Stock | Sale | $2,499,910 | -2,104 | -0.22% | $1188.17 | 942,540 | 11 Feb 2026 | Direct | F1, F8 |
| transaction | MPWR | Common Stock | Sale | $7,250,241 | -6,079 | -0.64% | $1192.67 | 936,461 | 11 Feb 2026 | Direct | F1, F9 |
| transaction | MPWR | Common Stock | Sale | $17,452,782 | -14,578 | -1.6% | $1197.20 | 921,883 | 11 Feb 2026 | Direct | F1, F10 |
| transaction | MPWR | Common Stock | Sale | $780,280 | -649 | -0.07% | $1202.28 | 921,234 | 11 Feb 2026 | Direct | F1, F11 |
| holding | MPWR | Common Stock | 133,040 | 11 Feb 2026 | by M Hsing 04 Trust | ||||||
| holding | MPWR | Common Stock | 12,825 | 11 Feb 2026 | ZH Family 2020 Trust |
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 $1,155.64 to $1,160.62 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 $1,160.70 to $1,165.64 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 $1,166.00 to $1,169.96. 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 $1,170.10 to $1,175.09. 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 $1,175.27 to $1,180.19. 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 $1,180.29 to $1,185.29. 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 $1,185.33 to $1,190.26. 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 $1,190.39 to $1,195.37. 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 $1,195.44 to $1,200.37. 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 $1,200.46 to $1,203.86. 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. |