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MPWR · Monolithic Power Systems, Inc. · Congressional Trades

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$1,283.32 +34.58 (+2.77%) At close · Oct 21
S&P 500 member Nasdaq-100 member Russell 1000 member Rebalance outlook locked
Market Cap
$61.37B
Shares
49.14M
Volume · Oct 21 611.33K Avg daily vol (3M) 733.92K

Transactions in this listed security by members of the U.S. Congress, disclosed under the STOCK Act. Lawmakers must report trades within 45 days, so the filing date can lag the trade itself.

Query congressional trades through the STOCK Act API or MCP →
Date Member Type Amount
2026-06-05 Byron Donalds Sell ST · Monolithic Power Systems, Inc. - Common Stock (MPWR) $1K - $15K
2026-06-05 Byron Donalds Sell ST · Monolithic Power Systems, Inc. - Common Stock (MPWR) $1K - $15K
2026-02-04 Markwayne Mullin Buy Stock · Monolithic Power Systems, Inc. - Common Stock $15K - $50K
2026-01-05 Markwayne Mullin Buy Stock · Monolithic Power Systems, Inc. - Common Stock $15K - $50K
2026-01-05 Markwayne Mullin Buy Stock · Monolithic Power Systems, Inc. - Common Stock $15K - $50K
2025-10-20 Michael Patrick Guest Buy ST · Monolithic Power Systems, Inc. - Common Stock (MPWR) $1K - $15K
2025-04-08 Rob Bresnahan Buy ST · Monolithic Power Systems, Inc. - Common Stock (MPWR) $1K - $15K
2025-01-13 Rob Bresnahan Sell ST · Monolithic Power Systems, Inc. - Common Stock (MPWR) $1K - $15K
2024-05-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2024-05-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2023-10-17 Thomas H Tuberville Buy Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2023-04-03 Thomas H Tuberville Sell Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
2021-09-30 Thomas H Tuberville Buy Stock · Monolithic Power Systems, Inc. - Common Stock $1K - $15K
Showing 1–16 of 16 trades
Key facts CIK 1280452 CUSIP 609839105 13F (30d) 233 filings 227 filers Visit website Investor relations