Insider selling is trivial relative to market cap and consistent with routine diversification. No bearish signal. Monitor for any material change in insider buying patterns or a sudden increase in C-suite sales volume above $50M in a 30-day window.
Price Chart
Executive Summary
Three MPWR insiders sold a total of $8.78M in open-market sales over a 5-day window, led by EVP & General Counsel Tseng Saria ($7.93M). The sales represent ~0.01% of the $79.6B market cap, which is trivial in proportion. No insider purchases occurred, and the CFO's sale of only 22 shares is de minimis. The cluster is likely driven by routine portfolio diversification and tax planning rather than a bearish signal.
Key Financial Metrics
Key Facts
- Total insider sales of $8.78M represent ~0.01% of MPWR's $79.6B market cap
- EVP & General Counsel Tseng Saria sold 5,000 shares ($7.93M) and gifted 200 shares ($0)
- Interim CFO Dean sold only 22 shares ($36K) — immaterial
- Director Zhou Jeff sold 486 shares ($816K)
- No open-market purchases by any insider in the cluster window
- Recent 30d insider activity shows 7 sells totaling $20.1M — consistent pattern
Financial Impact
Total insider sales of $8.78M, or ~0.01% of market cap — negligible economic impact
Risk Factors
- Sustained insider selling >$50M/quarter could signal management concern about valuation
- No insider buying to offset selling pattern
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MPWR-1780012000512 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 10, 2026 21d ago | Press Release | $1,234.46 $1,217.80 | ▼ −1.35% | ▼ −1.13% | $1,452.76 (+17.68%) |
Aug 26, 2026 5w ago | Insider Cluster | $1,311.08 $1,213.65 | ▼ −7.43% | ▼ −7.70% | $1,452.76 (+10.81%) |
Aug 26, 2026 5w ago | Insider Cluster | $1,311.08 $1,219.36 | ▼ −7.00% | ▼ −6.23% | $1,452.76 (+10.81%) |
Aug 24, 2026 5w ago | Court Ruling | $1,285.03 $1,261.99 | ▼ −1.79% | ▼ −2.26% | $1,452.76 (+13.05%) |
Aug 13, 2026 7w ago | Insider Cluster | $1,362.55 $1,310.60 | ▼ −3.81% | ▼ −1.85% | $1,452.76 (+6.62%) |
Aug 6, 2026 8w ago | Insider Cluster | $1,350.21 $1,358.05 | ▲ +0.58% | ▼ −0.63% | $1,452.76 (+7.60%) |
Jul 30, 2026 9w ago | 8-K | $1,426.03 $1,391.91 | ▼ −2.39% | ▼ −5.90% | $1,452.76 (+1.87%) |
Jun 12, 2026 15w ago | Press Release | $1,652.29 $1,537.88 | ▼ −6.92% | ▼ −5.54% | $1,452.76 (−12.08%) |
Jun 3, 2026 17w ago | Insider Cluster | $1,650.98 $1,589.55 | ▼ −3.72% | ▼ −1.17% | $1,452.76 (−12.01%) |
May 29, 2026 17w ago | Insider Cluster | $1,537.90 $1,481.05 | ▼ −3.70% | ▼ −0.95% | $1,452.76 (−5.54%) |
US Market Status
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