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MONOLITHIC POWER SYSTEMS INC
Semiconductors & Related Devices · DE · CIK 1280452
Monolithic Power Systems provides high-performance, semiconductor-based power electronics solutions for various applications
🔥 High media attention
$77.49B
Market cap
$1312.77
Last close
-0.0%
1D
-14.6%
5D
1.1M
Volume
Price · last 39 sessions-16.6%
May 4L $1312.77 · H $1689.89Jun 29
107
Total filings
Jun 12, 2026
Last filing
12/31
Fiscal year end
8-KShareholder Vote · Company UpdateJun 12, 202610-QFORM 10-QMay 4, 20268-KResults of OperationsApr 30, 2026DEFA14AFORM DEFA14AApr 30, 2026DEF 14AFORM DEF 14AApr 30, 202610-KFORM 10-KFeb 27, 20268-KRestatementFeb 27, 20268-KExecutive Change · Results of OperationsFeb 5, 20268-KCompany UpdateDec 12, 20258-KBylaw AmendmentNov 21, 202510-QFORM 10-QNov 5, 20258-KResults of OperationsOct 30, 20258-KCompany UpdateSep 11, 202510-QFORM 10-QAug 4, 20258-KResults of OperationsJul 31, 20258-KBylaw Amendment · Shareholder VoteJun 16, 202510-QFORM 10-QMay 5, 20258-KResults of OperationsMay 1, 2025DEFA14AFORM DEFA14AApr 30, 2025DEF 14AFORM DEF 14AApr 30, 20258-KBylaw AmendmentMar 26, 20258-KReg FD DisclosureMar 20, 202510-KFORM 10-KMar 3, 20258-KResults of Operations · Company UpdateFeb 6, 20258-KCompany UpdateDec 13, 20248-KReg FD DisclosureNov 12, 202410-QFORM 10-QNov 6, 20248-KResults of OperationsOct 30, 20248-KExecutive ChangeOct 22, 20248-KCompany UpdateSep 13, 202410-QFORM 10-QAug 2, 20248-KResults of Operations · Company UpdateAug 1, 20248-KShareholder Vote · Company UpdateJun 14, 2024DEFA14AFORM DEFA14AJun 6, 202410-QFORM 10-QMay 3, 20248-KResults of OperationsMay 1, 2024DEFA14AFORM DEFA14AApr 29, 2024DEF 14AFORM DEF 14AApr 29, 202410-KFORM 10-KFeb 29, 2024SC 13GSC 13GFeb 14, 2024SC 13GSC 13GFeb 9, 20248-KResults of Operations · Company UpdateFeb 7, 20248-KCompany UpdateDec 15, 202310-QFORM 10-QNov 8, 20238-KResults of Operations · Company UpdateOct 30, 20238-KCompany UpdateSep 15, 202310-QFORM 10-QAug 4, 20238-KResults of OperationsJul 31, 20238-KExecutive Change · Shareholder VoteJun 15, 2023DEFA14AFORM DEFA14AJun 7, 2023DEFA14AFORM DEFA14AJun 5, 2023DEFA14AFORM DEFA14AMay 22, 202310-QFORM 10-QMay 5, 20238-KResults of OperationsMay 4, 2023DEFA14AFORM DEFA14AMay 1, 2023DEF 14AFORM DEF 14AMay 1, 202310-KFORM 10-KFeb 24, 2023SC 13GSC 13GFeb 14, 20238-KExecutive Change · Results of OperationsFeb 8, 2023SC 13GSC 13GJan 20, 20238-KCompany UpdateDec 15, 202210-QFORM 10-QNov 9, 20228-KResults of OperationsOct 27, 20228-KCompany UpdateSep 16, 202210-QFORM 10-QAug 5, 20228-KResults of OperationsAug 1, 20228-KShareholder Vote · Company UpdateJun 21, 202210-QFORM 10-QMay 10, 2022DEFA14AFORM DEFA14AMay 2, 2022DEF 14AFORM DEF 14AMay 2, 20228-KResults of OperationsMay 2, 20228-KBylaw AmendmentApr 28, 202210-KFORM 10-KFeb 25, 20228-KResults of Operations · Company UpdateFeb 10, 20228-KCompany UpdateDec 15, 202110-QFORM 10-QNov 8, 20218-KResults of OperationsOct 28, 20218-KCompany UpdateSep 15, 202110-QFORM 10-QAug 9, 20218-KResults of OperationsJul 27, 2021
Insider Activity
In the 90 days to Mar 20, 2026: 6 sold $295.4M.
| Date | Insider | Action | Shares | Price | Value |
|---|---|---|---|---|---|
| Mar 20, 2026 | Sciammas MauriceEVP, WW Sales & Marketing | Sell | 30 | $1095.07 | $33K |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 12,731 | $1155.71 | $14.7M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 4,992 | $1159.84 | $5.8M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 4,001 | $1164.92 | $4.7M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 3,640 | $1205.82 | $4.4M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 2,076 | $1168.80 | $2.4M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 1,440 | $1217.12 | $1.8M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 1,440 | $1200.81 | $1.7M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 1,240 | $1210.11 | $1.5M |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 600 | $1194.34 | $717K |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 480 | $1180.79 | $567K |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 200 | $1173.39 | $235K |
| Feb 12, 2026 | Hsing MichaelCEO | Sell | 160 | $1188.23 | $190K |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 14,578 | $1197.20 | $17.5M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 6,079 | $1192.67 | $7.3M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 2,799 | $1177.67 | $3.3M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 2,104 | $1188.17 | $2.5M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 1,987 | $1172.92 | $2.3M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 1,542 | $1182.82 | $1.8M |
| Feb 11, 2026 | Hsing MichaelCEO | Sell | 1,533 | $1167.62 | $1.8M |
Open-market buys & sells (Form 4, transaction codes P/S). Source: SEC structured insider data.
In the News
🔥 High media attentionCoverage (30d): 9 reputable articles · skews ▲ positive.
MarketWatchMonolithic Power Systems Inc. stock outperforms competitors on strong trading day11d agoMarketWatchMonolithic Power Systems Inc. stock underperforms Tuesday when compared to competitors13d agoMarketWatchMonolithic Power Systems Inc. stock underperforms Friday when compared to competitors24d agoInvestor's Business DailyThis Nvidia Chip Supplier Is In The Middle Of A Legendary Comeback25d agoMarketWatchMonolithic Power Systems Inc. stock underperforms Thursday when compared to competitors25d ago
Reputable outlets only (Reuters, WSJ, CNBC, Barron's, and peers). More on Google News ↗
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