Net shares · 90d
-24.3K
0 buy · 24.3K sell
Net value · 90d
-$5.1M
$0 in · $5.1M out
Sentiment · 90d
Net selling
0% buying · 100% selling
Open-market trades · 90d
1
0 buy · 24.3K sell
Trading track record · all companies
Not enough open-market trades to chart a track record yet.
Running net of open-market buys − sells across every company. Tap the line or a marker for details. ▲ buy · ▼ sell.
Transactions · 90d
-
ARM Sell·S
Chief Architect
$5.1M
24.3K sh · $209.15
Own -100%
-
ARM Exercise·M
Chief Architect
$0
22.6K sh · 4 lots
Own +24%
-
ARM Grant·A
Chief Architect
$0
41.4K sh · 2 lots
Own +42%
-
ARM Other·F
Chief Architect
$4.5M
21.3K sh · $209.16
Own -47%
-
ARM Exercise·M
Chief Architect
—
22.6K sh · 4 lots
Own +98%
-
ARM Grant·A
Chief Architect
—
22.7K sh · 3 lots
Own +122%
| Date▾ | Ticker | Type | Shares | Value |
|---|---|---|---|---|
| May 18, 2026 | ARM | Sell S | 24.3K | $5.1M |
| May 15, 2026 | ARM | Exercise M | 22.6K4 lots | $0 |
| May 15, 2026 | ARM | Grant A | 41.4K2 lots | $0 |
| May 15, 2026 | ARM | Other F | 21.3K | $4.5M |
| May 15, 2026 | ARM | Exercise M | 22.6K4 lots | — |
| May 15, 2026 | ARM | Grant A | 22.7K3 lots | — |
Buy Sell Non-market (grant · exercise · gift)
About Richard Roy Grisenthwaite
This profile aggregates every SEC Form 4 insider transaction reported by Richard Roy Grisenthwaite across all companies they trade. Open-market purchases (code P) and sales (code S) are the highest-signal, discretionary trades; grants (A), option exercises (M) and gifts (G) reflect compensation rather than conviction and carry no market price. Figures cover the selected period and update as new filings are ingested.