Tseng Saria 4
4 · MONOLITHIC POWER SYSTEMS INC · Filed Feb 10, 2026
Research Summary
AI-generated summary of this filing
Monolithic Power Systems (MPWR) EVP Saria Tseng Sells Shares
What Happened
- Saria Tseng, EVP and General Counsel of Monolithic Power Systems (MPWR), sold 22,875 shares on 2026-02-06 in an open-market transaction. The shares were disposed at $1,171.16 per share for a total proceeds of $26,790,370. This was a sale (not a purchase); such sales tied to tax withholding on vested restricted stock units are typically routine and do not necessarily signal a change in insider sentiment.
Key Details
- Transaction date: 2026-02-06; Price: $1,171.16 per share; Total value: $26,790,370.
- Transaction type/code: Sale (S); footnote indicates sale to cover taxes on RSU release (tax withholding).
- Shares owned after the transaction: not specified in the provided filing summary.
- Filing timing: Report filed 2026-02-10. Based on the transaction date, the filing appears to have been submitted within the standard Form 4 reporting window (i.e., timely).
Context
- The sale was executed to satisfy tax withholding obligations upon the release/vesting of restricted stock units, per the company’s equity plan. These "sell-to-cover" transactions are common and mainly reflect tax obligations rather than directional bets on the stock.
- For retail investors, note purchases by insiders can be more informative about confidence than routine tax-related sales; this filing alone should not be interpreted as a buy or sell recommendation.
Insider Transaction Report
Form 4
Tseng Saria
EVP & General Counsel
Transactions
- Sale
Common Stock
[F1]2026-02-06$1171.16/sh−22,875$26,790,370→ 200,626 total
Holdings
- 1,000(indirect: By Foundation)
Common Stock
Footnotes (1)
- [F1]The reported sales were to cover taxes upon the release of restricted stock units, as required by the Company's equity incentive plan.
Signature
/s/ Saria Tseng|2026-02-10