COLLINS SPENCER (Chief Legal Officer) received a stock award from ARM HOLDINGS PLC /UK

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 3 awards

COLLINS SPENCER

Filed: 5/19/2026ACC: 0001973239-26-000074

InsiderCOLLINS SPENCERCIK 1999165

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IssuerARM HOLDINGS PLC /UKCIK 1973239

Officer· Chief Legal Officer

Since Mar 2026

+48.52K

Net shares

Net buyer

$7.59M

Total sold

Open market trades

0B · 0S

Total transactions

92.97K acquired · 44.44K disposed

Non-Derivative Transactions6

Ordinary Shares

Direct

A · Award

+10.67K

Price / share

—

Trade value

—

% of position

New position

5/15/2026

0.00→10.67K

Ordinary Shares

Direct

M · Option Exercise

+4.18K

Price / share

—

Trade value

—

% of position

39.2%

5/15/2026

10.67K→14.85K

Ordinary Shares

Direct

M · Option Exercise

+3.95K

Price / share

—

Trade value

—

% of position

26.6%

5/15/2026

14.85K→18.80K

Ordinary Shares

Direct

A · Award

+10.07K

Price / share

—

Trade value

—

% of position

53.6%

5/15/2026

18.80K→28.87K

Ordinary Shares

Direct

A · Award

+48.38K

Price / share

—

Trade value

—

% of position

167.6%

5/15/2026

28.87K→77.25K

Ordinary Shares

Direct

F · Tax Withholding

−36.31K

Price / share

$209.16

Trade value

$7.59M

% of position

47.0%

5/15/2026

77.25K→40.94K

Total

Net shares

+40.94K

Net value

-$7.59M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Ordinary Shares Direct	5/15/2026	A · Award	+10.67K	—	—	New position	0.00	10.67K
Ordinary Shares Direct	5/15/2026	M · Option Exercise	+4.18K	—	—	39.2%	10.67K	14.85K
Ordinary Shares Direct	5/15/2026	M · Option Exercise	+3.95K	—	—	26.6%	14.85K	18.80K
Ordinary Shares Direct	5/15/2026	A · Award	+10.07K	—	—	53.6%	18.80K	28.87K
Ordinary Shares Direct	5/15/2026	A · Award	+48.38K	—	—	167.6%	28.87K	77.25K
Ordinary Shares Direct	5/15/2026	F · Tax Withholding	−36.31K	$209.16	$7.59M	47.0%	77.25K	40.94K
Total			+40.94K		-$7.59M

Derivative Transactions3

Restricted Stock Units

Direct

A · Award

Converts to

Ordinary Shares

15.72K shares

+15.72K

Strike price

Held after

146.89K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

4.18K shares

−4.18K

Strike price

Held after

142.71K

Exercisable

—

5/15/2026

Restricted Stock Units

Direct

M · Option Exercise

Converts to

Ordinary Shares

3.95K shares

−3.95K

Strike price

Held after

138.76K

Exercisable

—

5/15/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Restricted Stock Units Direct	Ordinary Shares15.72K shares	5/15/2026	A · Award	+15.72K	—	146.89K
Restricted Stock Units Direct	Ordinary Shares4.18K shares	5/15/2026	M · Option Exercise	−4.18K	—	142.71K
Restricted Stock Units Direct	Ordinary Shares3.95K shares	5/15/2026	M · Option Exercise	−3.95K	—	138.76K