This is a planned, not unusual, insider sale by an officer following a common post-vesting strategy; however, traders should monitor for actual execution of the sale, especially given recent insider selling trends which may signal caution.
Price Chart
Executive Summary
Saria Tseng, an officer of Monolithic Power Systems, filed a Form 144 to notify intent to sell up to 76,360 shares of common stock, valued at approximately $8.9 million based on current market prices. The shares are scheduled for sale on or after April 6, 2026, and appear to be part of a structured disposition plan following prior vesting events.
Key Facts
- Saria Tseng is an officer of Monolithic Power Systems (MPWR).
- Filed Form 144 for proposed sale of 76,360 shares of common stock.
- Shares are to be sold on or after April 6, 2026.
- Approximate value of the proposed sale is $8.9 million based on current market price.
- Recent insider selling activity includes 5 transactions totaling $6.2M in the past 30 days.
Financial Impact
Approximately $8.9 million in potential stock sales, representing a small fraction of MPWR's $58.5 billion market cap.
Risk Factors
- Perception of insider selling could weigh on investor sentiment if multiple officers file similar notices.
- Execution of the sale could increase near-term supply in the market, potentially impacting price.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 144 Filing (Primary) | 0001950047-26-003339 |
| Document: 0001950047-26-003339-index.html | 0001950047-26-003339 |
| Document: 0001950047-26-003339.txt | 0001950047-26-003339 |
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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