ARM ARM HOLDINGS PLC /UK

NEUTRAL Impact: 3/10 Insider Cluster (3 insiders)
Horizon immediate Filed May 21, 2026 Processed 19d 11h ago
Insider cluster: 3 insiders, $13.1M total
Latest settled — T+5d
ARM ▲ +33.39% at T+5d
NEUTRAL call ✓ call won +33.39% · α vs SPY +31.71% · entry $306.51 → $408.85
Next anchor: T+20d in 12d
Last close $346.39 (close Jun 8) · +13.01% from $306.51 entry
Entry anchored
May 21, 04:13 PM ET
via Databento tick
T+1d
+4.80%
call +4.80% · α +4.21%
$321.22
settled 19d ago
T+5d
+33.39%
call +33.39% · α +31.71%
$408.85
settled 12d ago
T+20d
call — · α —
in 12d
T+60d
call — · α —
in 2mo

Price Chart

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Executive Summary

Three ARM insiders (CFO, Chief People Officer, Chief Architect) sold a total of $13.1M in open-market shares over a 3-day window. The sales amount to only ~0.005% of ARM's $271.9B market cap, making them trivial in size and likely routine portfolio rebalancing or tax planning. No material bearish signal.

Key Financial Metrics

Direction
selling
Total Value
$13.1M
Insiders
3

Actionable Insight

These insider sales are immaterial in size and likely driven by pre-scheduled 10b5-1 plans or post-blackout window liquidity. No bearish read-through. Monitor next earnings for any fundamental changes.

Key Facts

  • CFO Jason Child sold 31,920 shares for $7.23M at $226.54 on 2026-05-20.
  • Chief People Officer Charlotte Claire Eaton sold 3,100 shares for $782K at $252.25 on 2026-05-20.
  • Chief Architect Richard Roy Grisenthwaite sold 24,339 shares for $5.09M at $209.15 on 2026-05-18.
  • Total open-market sales: $13.1M, representing ~0.005% of ARM's market cap.
  • No insider open-market purchases in this cluster.

Financial Impact

Total insider sales of $13.1M, negligible relative to $271.9B market cap.

Market Snapshot

Exchange
Nasdaq
Sector
Semiconductors & Related Devices
Analyst Consensus
64% bullish (45 analysts)

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-ARM-1779394448426
9 reports for ARM
Performance horizon

Track record builds as more directional reports settle.

Filters
Rows
Reports for ARM — sortable, filterable
Type Now
Jun 4, 2026
5d ago
Insider Cluster
NEUTRAL ★ 2/10
$390.51 awaiting T+5awaiting T+5$346.39 (−11.30%)
May 26, 2026
14d ago
Insider Cluster
NEUTRAL ★ 3/10
$302.71 $402.71▲ +33.03%▲ +31.83%$346.39 (+14.43%)
May 26, 2026
14d ago
20-F
BULLISH ★ 7/10
$302.71 $402.71▲ +33.03%▲ +31.83%$346.39 (+14.43%)
May 22, 2026
18d ago
Insider Cluster
NEUTRAL ★ 3/10
$321.22 $408.85▲ +27.28%▲ +26.20%$346.39 (+7.84%)
May 21, 2026
19d ago
Insider Cluster
NEUTRAL ★ 3/10
$306.51 $408.85▲ +33.39%▲ +31.71%$346.39 (+13.01%)
May 20, 2026
20d ago
144
NEUTRAL ★ 2/10
$256.73 $302.71▲ +17.91%▲ +16.67%$346.39 (+34.92%)
May 19, 2026
21d ago
Insider Cluster
NEUTRAL ★ 2/10
$256.73 $335.27▲ +30.59%▲ +28.79%$346.39 (+34.92%)
Apr 22, 2026
6w ago
144
NEUTRAL ★ 3/10
$196.57 $197.52▲ +0.48%▲ +0.43%$346.39 (+76.22%)
Apr 21, 2026
7w ago
6-K
NEUTRAL ★ 3/10
$175.49 $198.65▲ +13.20%▲ +12.11%$346.39 (+97.38%)
Showing 9 of 9

US Market Status

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