Congress Trades

Coverage gap. Senate eFD: the last 13 checks failed; last successful check Oct 23. New filings from this source are not coming in. Newest Senate eFD filing on this site: 2026-10-21.

Source status

Robert W Dean IIFiled

Interim CFOExecutiveCIK 1445300
Net · 12 months
-$233.7K
Open-market buys − sales
Sold · 12 months
$233.7K
$50K 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
  • 65Insider overlapPublic Aug 7, 2026 · traded Jul 27, 2026

    Rep. Ro Khanna's dependent child bought MPWR 9 days before its CFO sold $141K

    DRo KhannaRobert W Dean IIMPWRFilingOCR4
    Details
    Politician
    Ro Khanna
    Ticker
    MPWR
    Asset
    MONOLITHIC POWER SYSTEMS INC CMN
    Tx type
    buy
    Traded
    Jul 27, 2026
    Filed
    Aug 7, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Range midpoint (estimate)
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    11
    Owner type
    dependent
    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":"2026-08-05","shares":105,"price":1344.27,"value":141148.35,"is_10b5_1":false,"filing_date":"2026-08-06"}
    Days between
    -9
    Opposite side
    Yes
    Public from
    Aug 7, 2026
    Method version
    2026-11-03
  • 50Insider overlapPublic Jul 15, 2026 · traded Jun 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
    Traded
    Jun 5, 2026
    Filed
    Jul 15, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Range midpoint (estimate)
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    40
    Owner type
    self
    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,"filing_date":"2026-05-28"}
    Days between
    10
    Opposite side
    No
    Public from
    Jul 15, 2026
    Method version
    2026-11-03
  • 50Insider overlapPublic Jul 15, 2026 · traded Jun 5, 2026

    Rep. Byron Donalds's spouse 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
    Traded
    Jun 5, 2026
    Filed
    Jul 15, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Range midpoint (estimate)
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    40
    Owner type
    spouse
    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,"filing_date":"2026-05-28"}
    Days between
    10
    Opposite side
    No
    Public from
    Jul 15, 2026
    Method version
    2026-11-03
  • 65Insider overlapPublic Jul 6, 2026 · traded Jun 18, 2026

    Rep. Ro Khanna's dependent child bought MPWR 23 days after its CFO sold $36K

    DRo KhannaRobert W Dean IIMPWRFilingOCR4
    Details
    Politician
    Ro Khanna
    Ticker
    MPWR
    Asset
    MONOLITHIC POWER SYSTEMS, INC. CMN
    Tx type
    buy
    Traded
    Jun 18, 2026
    Filed
    Jul 6, 2026
    Amount low
    $1,001
    Amount high
    $15,000
    Range midpoint (estimate)
    $8,001
    Disclosed range
    $1,001 - $15,000
    Reporting lag days
    18
    Owner type
    dependent
    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,"filing_date":"2026-05-28"}
    Days between
    23
    Opposite side
    Yes
    Public from
    Jul 6, 2026
    Method version
    2026-11-03

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.