MONOLITHIC POWER SYSTEMS INC·4

Feb 10, 6:58 PM ET

Tseng Saria 4

4 · MONOLITHIC POWER SYSTEMS INC · Filed Feb 10, 2026

Research Summary

AI-generated summary of this filing

Updated

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
Period: 2026-02-06
Tseng Saria
EVP & General Counsel
Transactions
  • Sale

    Common Stock

    [F1]
    2026-02-06$1171.16/sh22,875$26,790,370200,626 total
Holdings
  • Common Stock

    (indirect: By Foundation)
    1,000
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

Documents

1 file
  • 4
    marketforms-72093.xmlPrimary

    PRIMARY DOCUMENT