Insider Cluster (3 insiders) ·Filed Jun 3, 2026

RMBS

RAMBUS INC
NEUTRAL
Impact 2/10
Horizondays Processed4mo ago
Insider cluster: 3 insiders, $7.3M total
Actionable Insight • Neutral

The dollar value of this cluster is trivial relative to RMBS's $18B market cap. Insider selling at this scale is routine and non-informative. No trading action warranted based on this filing alone. Monitor for any material change in business fundamentals or a material uptick in insider selling volume (e.g., >0.5% of market cap in a single month).

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
RMBS ▼ -49.36% at T+60d
NEUTRAL call ✗ call lost -49.36% · α vs SPY -51.24% · entry $169.35 → $85.76
Entry anchored
Jun 3, 04:44 PM ET
via exchange tick
T+1d
-14.20%
call -14.20% · α -11.62%
$145.31
settled 4mo ago
T+5d
-14.69%
call -14.69% · α -12.14%
$144.47
settled 4mo ago
T+20d
-33.32%
call -33.32% · α -31.95%
$112.92
settled 3mo ago
T+60d
-49.36%
call -49.36% · α -51.24%
$85.76
settled 5w ago

Price Chart

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Executive Summary

Two directors (Stang and Higashi) sold a combined $1.5M in open-market sales on June 1-2, while EVP/COO Fan sold $5.74M on May 26. Total cluster sales of $7.28M represent ~0.04% of RMBS's $18B market cap, well below the 0.1% materiality threshold. The sales are small relative to company size and likely reflect routine portfolio diversification or tax planning, not a coordinated bearish signal.

Key Financial Metrics

Direction
selling
Total Value
$7.3M
Insiders
3

Key Facts

  • Total insider sales of $7.28M over 8-day window, representing ~0.04% of $18B market cap
  • EVP/COO Sean Fan sold 37,800 shares ($5.74M) on May 26 — largest trade in cluster
  • Directors Stang and Higashi each sold 5,000 shares on June 1-2 ($730K and $815K respectively)
  • All three transactions are open-market sales (code S); no purchases in the cluster
  • Prior 30d insider activity: 7 sells totaling $9.7M, consistent with ongoing selling pattern
  • Historical calibration shows score-2 reports on RMBS have had mixed outcomes (T+20 avg alpha -2.55% for this segment)

Financial Impact

Total insider sales of $7.28M, or 0.04% of market cap — immaterial relative to company size

insider ownership

Risk Factors

  • Insider selling could accelerate if management becomes concerned about near-term headwinds, but current levels are routine
  • No purchases in the cluster — consistent with a one-sided selling pattern, but not unusual for a large-cap semiconductor company

Market Snapshot

Exchange
Nasdaq
Sector
Semiconductors & Related Devices
Analyst Consensus
76% bullish (17 analysts)

Investment Themes

Semiconductors

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-RMBS-1780524645797
13 reports for RMBS
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for RMBS — sortable, filterable
TypeNow
Aug 5, 2026
8w ago
8-K
NEUTRAL ★ 4/10
$97.30 $84.72▼ −12.93%▼ −12.33%$111.97 (+15.08%)
Jul 27, 2026
9w ago
8-K
BULLISH ★ 7/10
$87.75 $89.86▲ +2.40%▼ −0.98%$111.97 (+27.60%)
Jun 3, 2026
17w ago
Insider Cluster
NEUTRAL ★ 2/10
$169.35 $112.92▼ −33.32%▼ −31.95%$111.97 (−33.88%)
Jun 2, 2026
17w ago
Insider Cluster
NEUTRAL ★ 4/10
$170.66 $112.92▼ −33.83%▼ −32.83%$111.97 (−34.39%)
May 27, 2026
18w ago
Insider Cluster
NEUTRAL ★ 3/10
$148.02 $114.73▼ −22.49%▼ −19.35%$111.97 (−24.35%)
May 26, 2026
18w ago
Insider Cluster
NEUTRAL ★ 2/10
$148.66 $123.69▼ −16.80%▼ −14.90%$111.97 (−24.68%)
May 7, 2026
21w ago
Insider Cluster
NEUTRAL ★ 2/10
$126.60 $170.66▲ +34.80%▲ +31.67%$111.97 (−11.56%)
Apr 29, 2026
22w ago
8-K
NEUTRAL ★ 2/10
$115.11 $148.02▲ +28.59%▲ +23.62%$111.97 (−2.73%)
Apr 27, 2026
22w ago
8-K
NEUTRAL ★ 5/10
$111.27 $157.23▲ +41.30%▲ +35.84%$111.97 (+0.63%)
Apr 24, 2026
23w ago
8-K
NEUTRAL ★ 3/10
$141.31 $157.23▲ +11.27%▲ +6.31%$111.97 (−20.76%)
Showing 10 of 13

US Market Status

Market Closed — Opens Mon (64h 16m)

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Report published Jun 3, 2026