Robert W. Dean II

Chief Financial Officer

Monolithic Power Systems Inc Monolithic Power Systems, Inc.

Insider activity · 24 months0 buys4 salesCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 0 salesJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 0 salesJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 0 salesMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 1 saleJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 3 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Company

▲ Purchases (0 ops.)

—

▼ Sales (4 ops.)

€196k

Latest filing published 26 Aug 2026 for MONOLITHIC POWER SYSTEMS, INC.. Read the official filing

Filing timeline

BuySale

Robert W. Dean II

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Robert W. Dean II: trading record in brief

Robert W. Dean II, listed as finance chief, appears in our data through filings on Monolithic Power Systems Inc shares, published by SEC (Form 4). The record holds 7 filings, for trades running from 13 May 2026 to 24 August 2026.

No open-market purchase appears, only 4 sales worth €196k. Besides market trades, the filings include 1 share grant.

The record was last updated on 26 August 2026 with a transaction in Monolithic Power Systems Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. The legal deadline for a Form 4 is two business days after the transaction. Sales are harder to read than purchases, since they often meet personal needs such as tax or diversification. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.