Richard Roy Grisenthwaite insider trades

Open-market stock purchases and sales by Richard Roy Grisenthwaite, Chief Architect at ARM Holdings plc /UK, from SEC Form 4 filings since May 15, 2026.

Recent trades

DateStockTradeValue
May 18, 2026ARM ARM Holdings plc /UKSold$5.1M
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKSold (not open market)$4.5M
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—
May 15, 2026ARM ARM Holdings plc /UKBought (not open market)—

Companies traded

  • ARM ARM Holdings plc /UK: 1 sale, last May 18, 2026

Get free alerts when Richard Roy Grisenthwaite files a new trade →