| 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 | 17 Feb 2026 | 0001308676 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | MPWR | Common Stock | Sale | $14,713,344 | -12,731 | -1.4% | $1155.71 | 908,503 | 12 Feb 2026 | Direct | F1, F2 |
| transaction | MPWR | Common Stock | Sale | $5,789,921 | -4,992 | -0.55% | $1159.84 | 903,511 | 12 Feb 2026 | Direct | F1, F3 |
| transaction | MPWR | Common Stock | Sale | $4,660,845 | -4,001 | -0.44% | $1164.92 | 899,510 | 12 Feb 2026 | Direct | F1, F4 |
| transaction | MPWR | Common Stock | Sale | $2,426,429 | -2,076 | -0.23% | $1168.80 | 897,434 | 12 Feb 2026 | Direct | F1, F5 |
| transaction | MPWR | Common Stock | Sale | $234,678 | -200 | -0.02% | $1173.39 | 897,234 | 12 Feb 2026 | Direct | F1, F6 |
| transaction | MPWR | Common Stock | Sale | $566,779 | -480 | -0.05% | $1180.79 | 896,754 | 12 Feb 2026 | Direct | F1, F7 |
| transaction | MPWR | Common Stock | Sale | $190,117 | -160 | -0.02% | $1188.23 | 896,594 | 12 Feb 2026 | Direct | F1, F8 |
| transaction | MPWR | Common Stock | Sale | $716,604 | -600 | -0.07% | $1194.34 | 895,994 | 12 Feb 2026 | Direct | F1, F9 |
| transaction | MPWR | Common Stock | Sale | $1,729,166 | -1,440 | -0.16% | $1200.81 | 894,554 | 12 Feb 2026 | Direct | F1, F10 |
| transaction | MPWR | Common Stock | Sale | $4,389,185 | -3,640 | -0.41% | $1205.82 | 890,914 | 12 Feb 2026 | Direct | F1, F11 |
| transaction | MPWR | Common Stock | Sale | $1,500,536 | -1,240 | -0.14% | $1210.11 | 889,674 | 12 Feb 2026 | Direct | F1, F12 |
| transaction | MPWR | Common Stock | Sale | $1,752,653 | -1,440 | -0.16% | $1217.12 | 888,234 | 12 Feb 2026 | Direct | F1, F13 |
| holding | MPWR | Common Stock | 133,040 | 12 Feb 2026 | by M Hsing 04 Trust | ||||||
| holding | MPWR | Common Stock | 12,825 | 12 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 08/28/2025. |
| 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 $1,152.31 to $1,157.31. 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 $1,157.38 to $1,162.38. 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 $1,162.42 to $1,167.20 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 $1,167.43 to $1,172.17. 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 $1,172.82 to $1,175.07. 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 $1,179.43 to $1,182.24. 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 $1,185.94 to $1,190.48. 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 $1,191.26 to $1,195.35. 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 $1,197.57 to $1,202.33. 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 $1,202.70 to $1,207.63. 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 $1,207.93 to $1,212.36. 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. |
| F13 | 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 $1,214.09 to $1,218.82. 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. |