-
Signature
-
/s/ Saria Tseng
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Stock symbol
-
MPWR
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Transactions as of
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Oct 15, 2025
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Transactions value $
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-$17,139,295
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Form type
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4
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Date filed
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10/17/2025, 12:11 PM
Reporting Owners (1)
| Name |
Relationship |
Address |
Signature |
Signature date |
CIK |
| Tseng Saria |
EVP & General Counsel |
5808 LAKE WASHINGTON BLVD NE, KIRKLAND |
/s/ Saria Tseng |
2025-10-16 |
0001312593 |
Transactions Table
| Type |
Sym |
Class |
Transaction |
Value $ |
Shares |
Change % |
* Price $ |
Shares After |
Date |
Ownership |
Footnotes |
| transaction |
MPWR |
Common Stock |
Sale |
-$14.3M |
-14K |
-9.71% |
$1,016.18 |
130K |
Oct 15, 2025 |
Direct |
F1 |
| transaction |
MPWR |
Common Stock |
Sale |
-$1.53M |
-1.5K |
-1.15% |
$1,021.26 |
129K |
Oct 16, 2025 |
Direct |
F1 |
| transaction |
MPWR |
Common Stock |
Sale |
-$1.35M |
-1.31K |
-1.02% |
$1,030.81 |
128K |
Oct 16, 2025 |
Direct |
F1 |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.
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).
Explanation of Responses: