Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Grisenthwaite Richard Roy
Over the trailing 90 days, Grisenthwaite Richard Roy (Other Officer at ARM HOLDINGS PLC /UK) sold $9.5M of stock in ARM, per 15 SEC Form 4 transactions.
- Role
- Other Officer
- Companies
- ARM
- Window
- Trailing 90 days · 15 transactions · CIK 2112445
- Net activity
- −$9.5M ($0 bought · $9.5M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| ARM | ARM HOLDINGS PLC /UK | 15 | — | $9.5M | −$9.5M |
Transactions (15)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-05-18 | ARM | Sell | 24.3K | $5.1M | Open market or private sale |
| 2026-05-15 | ARM | Sell | 14.6K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Sell | 1.6K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Sell | 4.4K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Buy | 34.8K | $0 | Grant, award or other acquisition |
| 2026-05-15 | ARM | Buy | 6.6K | $0 | Grant, award or other acquisition |
| 2026-05-15 | ARM | Buy | 5.2K | $0 | Grant, award or other acquisition |
| 2026-05-15 | ARM | Buy | 2.0K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Buy | 14.6K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Buy | 4.2K | $0 | Grant, award or other acquisition |
| 2026-05-15 | ARM | Buy | 1.6K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Buy | 13.3K | $0 | Grant, award or other acquisition |
| 2026-05-15 | ARM | Buy | 4.4K | $0 | Exercise or conversion of derivative security |
| 2026-05-15 | ARM | Sell | 21.3K | $4.5M | Payment of exercise price or tax liability by delivering securities |
| 2026-05-15 | ARM | Sell | 2.0K | $0 | Exercise or conversion of derivative security |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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