Insider Trading & Ownership of Richard Roy Grisenthwaite

Location: Cambridge
Summary: The estimated net worth of Richard Roy Grisenthwaite is at least $6,520 dollars as of 18 Mar 2026. Richard Roy Grisenthwaite is the Chief Architect of ARM HOLDINGS PLC /UK and owns shares of ARM HOLDINGS PLC /UK (ARM) stock worth about $6.5K.
Signature: /s/ George Kanelos, as Attorney-in-Fact for Richard Roy Grisenthwaite
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Ownership of Richard Roy Grisenthwaite

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
ARM	ARM HOLDINGS PLC /UK	Chief Architect	$6,520			18 Mar 2026