MPWR MONOLITHIC POWER SYSTEMS INC
Price Chart
Executive Summary
Two MPWR insiders (EVP Maurice Sciammas and Director Jeff Zhou) sold a total of $1.41M in open-market sales over a 7-day window, immediately following a strong Q1 2026 earnings beat and raised guidance. The sales are modest relative to MPWR's $78B market cap (0.0018%), consistent with routine portfolio diversification rather than a bearish signal.
Key Financial Metrics
Actionable Insight
Insider selling is negligible relative to market cap and follows a strong earnings report — no bearish read-through. Monitor for any C-suite selling in coming weeks; if CEO/CFO begin selling material amounts, that would warrant attention. For now, the cluster is routine.
Key Facts
- Total insider sales: $1.41M across 2 insiders (EVP Sciammas and Director Zhou)
- Sales represent ~0.0018% of MPWR's $78B market cap — trivial in size
- Cluster occurred 6 days after Q1 2026 earnings beat ($804.2M revenue, +26.1% YoY; EPS $5.10 vs $4.90 consensus)
- No C-suite officers (CEO/CFO) participated in sales
- All transactions were open-market sales (code S); no non-cash transactions in cluster
Financial Impact
Total insider sales of $1.41M, representing 0.0018% of market cap
Risk Factors
- Insider selling could accelerate if stock continues to rally post-earnings
- No C-suite buying to offset sales — lack of bullish insider conviction
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MPWR-1778111976876 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 12, 2026
today
|
Press Release
| $1,576.88 awaiting T+1 | awaiting T+1 | — | $1,577.32 (+0.03%) |
|
Jun 3, 2026
9d ago
|
Insider Cluster
| $1,650.98 $1,476.57 | ▼ −10.56% | ▼ −7.97% | $1,577.32 (−4.46%) |
|
May 29, 2026
14d ago
|
Insider Cluster
| $1,537.90 $1,625.47 | ▲ +5.69% | ▲ +5.55% | $1,577.32 (+2.56%) |
|
May 29, 2026
14d ago
|
Insider Cluster
| $1,537.90 $1,625.47 | ▲ +5.69% | ▲ +5.55% | $1,577.32 (+2.56%) |
|
May 28, 2026
15d ago
|
Insider Cluster
| $1,562.07 $1,537.90 | ▼ −1.55% | ▼ −1.81% | $1,577.32 (+0.98%) |
|
May 27, 2026
16d ago
|
Insider Cluster
| $1,632.36 $1,562.07 | ▼ −4.31% | ▼ −4.55% | $1,577.32 (−3.37%) |
|
May 27, 2026
16d ago
|
Insider Cluster
| $1,632.36 $1,562.07 | ▼ −4.31% | ▼ −4.55% | $1,577.32 (−3.37%) |
|
May 21, 2026
23d ago
|
Insider Cluster
| $1,553.55 $1,588.88 | ▲ +2.27% | ▲ +1.83% | $1,577.32 (+1.53%) |
|
May 20, 2026
23d ago
|
Insider Cluster
| $1,553.55 $1,588.88 | ▲ +2.27% | ▲ +1.83% | $1,577.32 (+1.53%) |
|
May 8, 2026
5w ago
|
Insider Cluster
| $1,653.69 $1,592.75 | ▼ −3.69% | ▼ −3.55% | $1,577.32 (−4.62%) |
US Market Status
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