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
11d ago
|
Insider Cluster
| $169.35 $145.31 | ▼ −14.20% | ▼ −11.62% | $146.56 (−13.46%) |
|
Jun 2, 2026
12d ago
|
Insider Cluster
| $170.66 $169.35 | ▼ −0.77% | ▼ −1.17% | $146.56 (−14.12%) |
|
May 27, 2026
18d ago
|
Insider Cluster
| $148.02 $145.46 | ▼ −1.73% | ▼ −1.97% | $146.56 (−0.99%) |
|
May 26, 2026
19d ago
|
Insider Cluster
| $148.66 $148.02 | ▼ −0.43% | ▼ −0.98% | $146.56 (−1.41%) |
|
May 7, 2026
5w ago
|
Insider Cluster
| $126.60 $129.25 | ▲ +2.09% | ▲ +1.26% | $146.56 (+15.77%) |
|
Apr 29, 2026
6w ago
|
8-K
| $115.11 $115.11 | · 0.00% | ▼ −0.22% | $146.56 (+27.32%) |
|
Apr 27, 2026
6w ago
|
8-K
| $111.27 $110.48 | ▼ −0.71% | ▼ −0.70% | $146.56 (+31.72%) |
|
Apr 24, 2026
7w ago
|
8-K
| $141.31 $111.27 | ▼ −21.26% | ▼ −20.77% | $146.56 (+3.72%) |
|
Mar 6, 2026
14w ago
|
DEFA14A
| $88.52 $89.61 | ▲ +1.23% | ▲ +1.41% | $146.56 (+65.57%) |
|
Mar 2, 2026
15w ago
|
Insider Cluster
| $98.88 $87.59 | ▼ −11.42% | ▼ −10.50% | $146.56 (+48.22%) |
US Market Status
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