MPWR MONOLITHIC POWER SYSTEMS INC
Price Chart
Executive Summary
Three MPWR insiders sold a total of $13.71M in shares over a 7-day window, led by EVP & General Counsel Saria Tseng's $12.86M open-market sale. The cluster is dominated by selling, but the total value represents only ~0.018% of MPWR's $75.8B market cap, making it trivial relative to company size. No insider buying occurred, and the sales lack the pattern of a coordinated bearish signal — they are routine liquidity events.
Key Financial Metrics
Actionable Insight
This cluster is routine and non-informative. The dollar amounts are trivial for a $75.8B company, and the sales are likely driven by personal liquidity or tax planning rather than a bearish view. No trading action warranted.
Key Facts
- Three insiders sold shares totaling $13.71M, with Tseng Saria (EVP & General Counsel) accounting for $12.86M at $1,700/share
- Total sales represent ~0.018% of MPWR's $75.8B market cap — well below the 0.1% materiality threshold
- Dean Robert W II (Interim CFO) sold only 22 shares ($36K), a de minimis amount
- No open-market purchases were made by any insider during the window
- One non-cash gift of 12,472 shares by EVP Maurice Sciammas had zero economic impact
Financial Impact
Total insider sales of $13.71M, or 0.018% of market cap — immaterial
Risk Factors
- No material risk identified from this cluster alone
- If future clusters show accelerating C-suite selling at higher volumes, reassess
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MPWR-1780439835663 |
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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