Monolithic Power Systems, Inc. (MPWR)
NasdaqGS • Currently up 19.12 (+1.49%) in today's trading session
4 members of Congress have disclosed 8 trades in Monolithic Power Systems, Inc. (MPWR) via STOCK Act filings. The most recent disclosure was a sale by Byron Donalds on 5 June 2026. The most active traders have been Byron Donalds (4), Robert P. Bresnahan (2), and Michael Guest (1). Aggregate disclosed activity totals roughly $40K in purchases and $24K in sales (midpoint estimates from bracketed disclosure amounts).
Monolithic Power Systems, Inc. is currently trading at $1304.15, positioned at 55% of its 52-week range ($800.97 – $1714.09).
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Monolithic Power Systems, Inc. Price History and Technical Analysis
Congressional Trading Activity for MPWR
| Byron Donalds | 5 Jun 2026 | 15 Jul 2026 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Byron Donalds | 5 Jun 2026 | 15 Jul 2026 | Sale | Stock | $1,001 - $15,000 | N/A | |
| Michael Guest | 20 Oct 2025 | N/A | Purchase | Stock | $1,001 - $15,000 | +26.42% | |
| Michael Patrick Guest | 20 Oct 2025 | 19 Nov 2025 | Purchase | Stock | $1,001 - $15,000 | +26.42% | |
| Robert P. Bresnahan | 8 Apr 2025 | 8 May 2025 | Purchase | Stock | $1,001 - $15,000 | N/A | |
| Robert P. Bresnahan | 13 Jan 2025 | 13 Feb 2025 | Sale | Stock | $1,001 - $15,000 | N/A |
Select transactions to view their annotations on the chart
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Frequently Asked Questions about MPWR
- Which members of Congress have traded MPWR?
- 4 members of Congress have disclosed 8 trades in Monolithic Power Systems, Inc. (MPWR) under the STOCK Act. The most active traders are Byron Donalds, Robert P. Bresnahan, and Michael Guest.
- When was MPWR most recently disclosed by Congress?
- The most recent MPWR disclosure was a sale by Byron Donalds on 5 June 2026.
- What is the total disclosed congressional trading volume for MPWR?
- Members of Congress have disclosed approximately $40K in MPWR purchases and $24K in sales. These figures are midpoint estimates derived from the bracketed amount ranges used in STOCK Act filings.
- How can I track new congressional trades in MPWR?
- This MPWR page updates as soon as new STOCK Act disclosures are filed for Monolithic Power Systems, Inc.. Every trade, politician, transaction date and amount range is surfaced above, typically within hours of the official filing appearing on the House or Senate disclosure portals.
Track MPWR in Congress
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