RMBS RAMBUS INC
Price Chart
Executive Summary
Three Rambus insiders, including the COO, sold a combined $7.25M in open-market sales over a one-week window. The COO's $5.74M sale dominates the cluster, representing a material disposition relative to the $15.9B market cap. While the total is modest at ~0.05% of market cap, the COO's involvement and the cluster timing warrant attention.
Key Financial Metrics
Actionable Insight
The COO's $5.74M sale is the largest single insider disposition in the recent 30-day window (prior 30d total was $8.9M across 6 sells). While the dollar amount is not alarming for a $15.9B company, the cluster timing and COO involvement suggest monitoring upcoming earnings or material events for any negative catalyst. No 10b5-1 plan information is available to assess routine pattern.
Key Facts
- COO Sean Fan sold 37,800 shares for $5.74M on May 26, 2026
- Director Emiko Higashi sold 5,000 shares for $788K on May 26, 2026
- Director Eric Stang sold 5,000 shares for $730K on June 1, 2026
- Total cluster value: $7.25M, all open-market sales
- Cluster represents ~0.05% of $15.9B market cap
Financial Impact
Total insider sales of $7.25M, or 0.05% of market cap
Risk Factors
- COO selling a large block could signal private concerns about near-term performance
- Cluster sales may precede a negative earnings surprise or guidance revision
- No disclosed 10b5-1 plan for these sales increases information-signal risk
Market Snapshot
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-RMBS-1780440584509 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
|
Jun 3, 2026
13d ago
|
Insider Cluster
| $169.35 $144.47 | ▼ −14.69% | ▼ −12.14% | $132.48 (−21.77%) |
|
Jun 2, 2026
14d ago
|
Insider Cluster
| $170.66 $138.12 | ▼ −19.07% | ▼ −15.25% | $132.48 (−22.37%) |
|
May 27, 2026
20d ago
|
Insider Cluster
| $148.02 $170.66 | ▲ +15.30% | ▲ +15.34% | $132.48 (−10.50%) |
|
May 26, 2026
21d ago
|
Insider Cluster
| $148.66 $170.66 | ▲ +14.80% | ▲ +14.33% | $132.48 (−10.88%) |
|
May 7, 2026
5w ago
|
Insider Cluster
| $126.60 $134.85 | ▲ +6.52% | ▲ +5.01% | $132.48 (+4.64%) |
|
Apr 29, 2026
6w ago
|
8-K
| $115.11 $130.04 | ▲ +12.97% | ▲ +11.24% | $132.48 (+15.09%) |
|
Apr 27, 2026
7w ago
|
8-K
| $111.27 $111.50 | ▲ +0.21% | ▼ −1.49% | $132.48 (+19.06%) |
|
Apr 24, 2026
7w ago
|
8-K
| $141.31 $111.50 | ▼ −21.10% | ▼ −21.50% | $132.48 (−6.25%) |
|
Mar 6, 2026
14w ago
|
DEFA14A
| $88.52 $92.78 | ▲ +4.81% | ▲ +6.17% | $132.48 (+49.66%) |
|
Mar 2, 2026
15w ago
|
Insider Cluster
| $98.88 $88.52 | ▼ −10.48% | ▼ −9.27% | $132.48 (+33.98%) |
US Market Status
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