Grisenthwaite Richard Roy — Chief Architect
Insider trading activity for Grisenthwaite Richard Roy sourced from SEC EDGAR Form 4 filings.
Overview
- Title: Chief Architect
- Company: ARM HOLDINGS PLC /UK
- Total insider trades: 15
- Total buy volume: $0
- Total sell volume: $5.1M
- Last trade: May 19, 2026
Recent Trades
| Date | Insider | Ticker / Company |
Type | Shares | Value |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
4,352 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
1,631 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
14,595 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
2,046 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
BUY |
34,785 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
BUY |
6,648 |
N/A |
| May 18, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
SELL |
24,339 |
$5.1M |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
21,301 |
$4.5M |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
4,352 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
BUY |
13,315 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
1,631 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
BUY |
4,158 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
14,595 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
OTHER |
2,046 |
N/A |
| May 15, 2026 |
Grisenthwaite Richard Roy |
ARM ARM HOLDINGS PLC /UK |
BUY |
5,217 |
N/A |
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