Charlotte Claire Eaton - 21 May 2026 Form 4 Insider Report for ARM HOLDINGS PLC /UK (ARM)

Reporting relationship: Chief People Officer
Issuer ticker: ARM
Reported as of: 21 May 2026
Net transaction value: -$2,263,520
SEC form: 4
Accepted by SEC: 22 May 2026, 17:23:26 UTC
Prior SEC filing: 21 May 2026
Source filing: View source filing
Reporting owner signature: /s/ George Kanelos, as Attorney-in-Fact for Charlotte Claire Eaton

Key filing fact

Charlotte Claire Eaton filed Form 4 for ARM HOLDINGS PLC /UK (ARM) on 22 May 2026.

Key facts

This page summarizes Charlotte Claire Eaton's Form 4 filing for ARM HOLDINGS PLC /UK (ARM).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 22 May 2026, 17:23.

Change

Previous filing in this sequence was filed on 21 May 2026.
Current net transaction value: -$2,263,520.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002102441 Primary reporting owner

Eaton Charlotte Claire

Relationship: Chief People Officer
Address: C/O ARM HOLDINGS PLC, 110 FULBOURN ROAD, CAMBRIDGE, UNITED KINGDOM
Signature: /s/ George Kanelos, as Attorney-in-Fact for Charlotte Claire Eaton
Signature date: 22 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

ARM transaction

Ordinary Shares

Sale

Transaction value: $808,120
Shares: -2,805
Change %: -36%
Price: $288.10
Shares after: 5,000
Date: 21 May 2026
Ownership: Direct
Footnotes: F1

ARM transaction

Ordinary Shares

Sale

Transaction value: $1,455,400
Shares: -5,000
Change %: -100%
Price: $291.08
Shares after: 0
Date: 21 May 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

Ordinary shares, nominal value 0.001 GBP per share ("Ordinary Shares"), are held in the form of American Depositary Shares ("ADSs"). Each ADS represents 1 Ordinary Share.

Footnote F2

Represents weighted average sales price. The shares were sold at prices ranging from $291.04 to $291.08. The reporting person will provide upon request, to the SEC, the Issuer or security holder of the Issuer, full information regarding the number of shares sold at each separate price.