This cluster is too small relative to market cap to warrant a bearish read. Monitor for any upcoming earnings or material agreement filings that could provide context for the COO's larger sale, but treat this as routine portfolio diversification.
Price Chart
Executive Summary
Three Rambus insiders sold a total of $6.67M in open-market sales over a 7-day window, led by the EVP/COO ($5.74M) and a director ($788K). The total represents ~0.04% of the $17B market cap, well below the 0.1% materiality threshold, making this a routine liquidity-driven cluster. No insider buying was present.
Key Financial Metrics
Key Facts
- EVP/COO Sean Fan sold 37,814 shares for $5.74M on May 26 at $151.69
- Director Emiko Higashi sold 5,000 shares for $788K on May 26 at $157.57
- SVP/GC John Shinn sold 1,000 shares for $144K on May 22 at $143.63
- Total cluster value of $6.67M equals ~0.04% of Rambus's $17B market cap
- All three trades were open-market sales (code S); no insider purchases in the cluster
- No 10b5-1 plan disclosure or vesting pattern noted in the filing
Financial Impact
$6.67M in total insider sales, representing 0.04% of market cap
Risk Factors
- Insider sales at current elevated stock price ($157) could signal perceived overvaluation, though dollar amount is immaterial
- No insider buying to offset the 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-RMBS-1779921814919 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Aug 5, 2026 8w ago | 8-K | $97.30 $84.72 | ▼ −12.93% | ▼ −12.33% | $111.97 (+15.08%) |
Jul 27, 2026 9w ago | 8-K | $87.75 $89.86 | ▲ +2.40% | ▼ −0.98% | $111.97 (+27.60%) |
Jun 3, 2026 17w ago | Insider Cluster | $169.35 $112.92 | ▼ −33.32% | ▼ −31.95% | $111.97 (−33.88%) |
Jun 2, 2026 17w ago | Insider Cluster | $170.66 $112.92 | ▼ −33.83% | ▼ −32.83% | $111.97 (−34.39%) |
May 27, 2026 18w ago | Insider Cluster | $148.02 $114.73 | ▼ −22.49% | ▼ −19.35% | $111.97 (−24.35%) |
May 26, 2026 18w ago | Insider Cluster | $148.66 $123.69 | ▼ −16.80% | ▼ −14.90% | $111.97 (−24.68%) |
May 7, 2026 21w ago | Insider Cluster | $126.60 $170.66 | ▲ +34.80% | ▲ +31.67% | $111.97 (−11.56%) |
Apr 29, 2026 22w ago | 8-K | $115.11 $148.02 | ▲ +28.59% | ▲ +23.62% | $111.97 (−2.73%) |
Apr 27, 2026 22w ago | 8-K | $111.27 $157.23 | ▲ +41.30% | ▲ +35.84% | $111.97 (+0.63%) |
Apr 24, 2026 23w ago | 8-K | $141.31 $157.23 | ▲ +11.27% | ▲ +6.31% | $111.97 (−20.76%) |
US Market Status
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