Congress Trades

Robert W Dean IIFiled

Interim CFOExecutiveCIK 1445300
Net · 12 months
-$233.7K
Open-market buys − sales
Sold · 12 months
$233.7K
$191.2K in 90d · 5 sales on record
Bought · 12 months
$0
$0 in 90d · 0 buys on record
Under 10b5-1
0%
Share of sale value under a trading plan
Last trade
Aug 24, 2026
Filed Aug 26, 2026 · 8 rows

Monthly open-market value · 24 months Filed

  • Bought (open market)
  • Sold (open market)

Unusual activity Estimated

Whale score 14Whale watch
  • 50Insider overlapJun 5, 2026

    Rep. Byron Donalds partially sold MPWR 10 days after its CFO sold $36K

    RByron DonaldsRobert W Dean IIMPWRFiling4
    Details
    Politician
    Byron Donalds
    Ticker
    MPWR
    Asset
    Monolithic Power Systems, Inc. - Common Stock (MPWR)
    Tx type
    partial_sale
    Tx date
    Jun 5, 2026
    Filing date
    Jul 15, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Amount mid
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    40
    Is whale
    No
    Insider trade
    {"insider":{"slug":"robert-w-dean-ii","name":"Robert W Dean II","title":"Interim CFO","short_title":"CFO"},"company":"MONOLITHIC POWER SYSTEMS, INC.","ticker":"MPWR","tx_kind":"open_market_sale","tx_date":"2026-05-26","shares":22,"price":1649.56,"value":36290.32,"is_10b5_1":false}
    Days between
    10
    Opposite side
    No
  • 50Insider overlapJun 5, 2026

    Rep. Byron Donalds partially sold MPWR 10 days after its CFO sold $36K

    RByron DonaldsRobert W Dean IIMPWRFiling4
    Details
    Politician
    Byron Donalds
    Ticker
    MPWR
    Asset
    Monolithic Power Systems, Inc. - Common Stock (MPWR)
    Tx type
    partial_sale
    Tx date
    Jun 5, 2026
    Filing date
    Jul 15, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Amount mid
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    40
    Is whale
    No
    Insider trade
    {"insider":{"slug":"robert-w-dean-ii","name":"Robert W Dean II","title":"Interim CFO","short_title":"CFO"},"company":"MONOLITHIC POWER SYSTEMS, INC.","ticker":"MPWR","tx_kind":"open_market_sale","tx_date":"2026-05-26","shares":22,"price":1649.56,"value":36290.32,"is_10b5_1":false}
    Days between
    10
    Opposite side
    No

Transactions

Independent third-party platform; not affiliated with or endorsed by any member of Congress. Data sourced from publicly available filings and records. Portfolio, holdings, returns, and allocations are estimates and may differ from actual values. Informational and educational only; not investment advice. Shares, prices and post-transaction holdings are exactly as reported on SEC Form 4; the whale score is a model ranking of that filed activity.