LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM

Reporting ownerCIK 0002112445

Richard Roy Grisenthwaite

15 transactions in one company, from May 15, 2026 to May 18, 2026.

By company

Where this insider traded.

Company	Ticker	Trades	Bought	Sold
ARM HOLDINGS PLC /UK	ARM	15	—	$5.1M

15 in total, newest filings first.

Company	Ticker	Insider	Date	Code	Shares	Price	Value
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	M	4,352	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	M	1,631	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	M	14,595	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	M	2,046	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	A	34,785	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChiefDERIV	May 15	A	6,648	$0.00	—?
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 18	S	24,339	$209.15	$5.1M
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	F	21,301	$209.16	$4.5M
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	M	4,352	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	A	13,315	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	M	1,631	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	A	4,158	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	M	14,595	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	M	2,046	—	—
ARM HOLDINGS PLC /UK	ARM	Richard Roy GrisenthwaiteChief	May 15	A	5,217	—	—