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Richard Roy Grisenthwaite

Chief Architect

Richard Roy Grisenthwaite (Chief Architect) filed 1 Form 4 report in the trailing twelve months (0 purchases, 1 sale), most often in Arm Holdings plc (ARM). The largest single filing was $5.1M of ARM (24,339 sh × $209.15, as filed), executed May 18.

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Return, ttmiAverage return per filing, trailing twelve months
–
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
–
returns measure stock purchases only
Filings, ttm
1
0 buys · 1 sells
Median delay
–
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$5.1M
shares × price, as filed
Last traded
May 18
Filed May 19

Median ADV $1.9B across their filed names

Open performance→
Volume by month
$5.1M$2.5M$0Oct 2024Apr 2025Oct 2025Apr 2026May 2026 · sells $5.1M
Buys $0 Sells $5.1M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Technology 1 filing

Sector per market data · by filing · past 12 months

Most traded names
ARM Arm Holdings plc ARM · 0 buys · 1 sell 1 filing
Recent filings
ARMSALE Arm Holdings plc View filing → $5.1M
24,339 sh × $209.15
Exec May 18
Filed May 19 · 5:30 PM ET