Insider Cluster (2 insiders) ·Filed Aug 26, 2026
Insider cluster: 2 insiders, $106K total
Actionable Insight • Neutral
These sales are too small to carry informational content. Monitor next quarterly filing for any fundamental changes, but this cluster alone does not warrant a trading response.
Latest settled — T+20d
MPWR ▲ +3.97% at T+20d
NEUTRAL call ✓ call won +3.97% · α vs SPY +4.07% · entry $1,311.08 → $1,363.11
Latest observation: T+24 +12.56% FF3 residual α
T+1d
-4.18%
call -4.18% · α -3.95%
$1,256.26
settled 5w ago
T+5d
-7.00%
call -7.00% · α -6.23%
$1,219.36
settled 4w ago
T+20d
+3.97%
call +3.97% · α +4.07%
$1,363.11
settled 8d ago
T+60d
—
call — · α —
—
in 7w
Price Chart
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Executive Summary
Two insiders at Monolithic Power Systems, including the Interim CFO, sold a combined $106K in open-market sales on August 24, 2026. The total dollar value is trivial relative to the company's $64.1B market cap (0.0002%), making this a routine liquidity-driven event with no material signal.
Key Financial Metrics
Direction
selling
Total Value
$106.0K
Insiders
2
Key Facts
- Interim CFO Robert W. Dean II sold 32 shares at $1,297.72 for $41,527
- Director Kuo Wei Herbert Chang sold 50 shares at $1,281.57 for $64,079
- Total insider sales of $105,606 represent ~0.0002% of MPWR's $64.1B market cap
- Sales occurred on the same day, likely driven by blackout window opening or routine portfolio rebalancing
- No insider buying activity in the cluster
Financial Impact
Insider sales of $106K are immaterial relative to $64.1B market cap
Risk Factors
- Insider sales at a $64B company are typically liquidity-driven and not predictive
- Historical calibration shows prior neutral reports on MPWR had negative T+20 outcomes, but this is likely due to broader sector weakness, not insider signal
Market Snapshot
Exchange
Nasdaq
Sector
Semiconductors & Related Devices
Analyst Consensus
83% bullish (23 analysts)
Investment Themes
Semiconductors
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-MPWR-1787788861330 |
30 reports for MPWR
80% Hit rate best @ T+20▲ +21.20%
Filters
Rows
| 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%) |
Showing 10 of 30
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