Arm CEO takes added SoftBank Group role

Arm Holdings plc reports that Chief Executive Officer Rene Haas has taken on an expanded role as Chief Executive Officer of SoftBank Group International, effective April 20, 2026.

Rhea-AI Filing Summary

Arm Holdings plc reports that Chief Executive Officer Rene Haas has taken on an expanded role as Chief Executive Officer of SoftBank Group International, effective April 20, 2026. SoftBank Group International oversees certain subsidiaries of Arm’s controlling shareholder, SoftBank Group Corp., particularly in semiconductors and artificial intelligence.

The new position is described as limited and part-time and is intended to improve coordination and operational efficiency across SoftBank’s technology portfolio. Haas will continue as Arm’s Chief Executive Officer and as a member of its Board of Directors, with his responsibilities at Arm stated to remain unchanged.

Key Figures

Form type: Form 6-K Effective date of new role: April 20, 2026 Announcement date: April 21, 2026

3 metrics

Form type Form 6-K Current report for the month of April 2026

Effective date of new role April 20, 2026 Rene Haas becomes CEO of SoftBank Group International

Announcement date April 21, 2026 Arm announces Rene Haas’s expanded role

Key Terms

Form 6-K, SoftBank Group International, controlling shareholder, semiconductors and artificial intelligence, +1 more

5 terms

Form 6-K regulatory

"Form 6-K For the month of April, 2026"

A Form 6-K is a report that companies listed in certain countries file to provide important updates, such as financial results, corporate changes, or other significant information, to regulators and investors. It functions like an official company update or news release, helping investors stay informed about developments that could affect their investment decisions.

SoftBank Group International financial

"Chief Executive Officer of SoftBank Group International (“SBGI”)"

controlling shareholder financial

"subsidiaries of our controlling shareholder, SoftBank Group Corp."

A controlling shareholder is a person or entity that holds enough voting power in a company—often a majority of votes or decisive influence through agreements—to determine its board, strategy and major decisions. For investors this matters because that control shapes corporate direction, risk and who benefits from deals; like a driver steering a car, a controlling shareholder can speed up or block changes, which can affect minority shareholders’ returns and the company’s value.

semiconductors and artificial intelligence technical

"portfolio of companies focusing on semiconductors and artificial intelligence development"

operational efficiency financial

"with the aim of further enhancing operational efficiency"

Operational efficiency is the ability of a business to use its resources—such as time, labor, and materials—in the best possible way to produce goods or services. When a company operates efficiently, it can deliver more value with less waste or unnecessary cost. This matters to investors because higher efficiency often leads to better profitability and a stronger position in the market.

FAQ

What leadership change did Arm (ARM) disclose regarding Rene Haas?

Arm disclosed that CEO Rene Haas has also become Chief Executive Officer of SoftBank Group International, effective April 20, 2026. This new, part-time role expands his responsibilities within the SoftBank ecosystem while he continues as Arm’s CEO and a member of its Board of Directors.

Will Rene Haas remain CEO of Arm (ARM) after joining SoftBank Group International?

Yes, Rene Haas will remain Chief Executive Officer of Arm Holdings plc and continue serving on its Board of Directors. His new role at SoftBank Group International is described as limited and part-time and is not intended to detract from his responsibilities at Arm.

What is SoftBank Group International’s connection to Arm (ARM)?

SoftBank Group International is an operating platform that oversees certain subsidiaries of SoftBank Group Corp., Arm’s controlling shareholder. The expanded role for Rene Haas is intended to support coordination across SoftBank’s portfolio focused on semiconductors and artificial intelligence development, aiming to enhance operational efficiency.

When does Rene Haas’s role at SoftBank Group International become effective?

Rene Haas’s role as Chief Executive Officer of SoftBank Group International became effective on April 20, 2026. Arm announced this change on April 21, 2026, explaining that the role is part-time and designed to complement his ongoing leadership responsibilities at Arm.

How is Rene Haas’s new role expected to affect Arm (ARM)?

The company states that Rene Haas’s role at SoftBank Group International is expected to be limited and part-time. It is not intended to detract from his responsibilities at Arm and is aimed at improving coordination and operational efficiency across SoftBank’s semiconductor and artificial intelligence portfolio.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/21/2026 - 09:01 AM Learn about SEC filing dates

0001973239ARM HOLDINGS PLC /UK04-212027Q12026-04-21false00019732392026-04-212026-04-21

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April, 2026

Commission file number 001-41800

Arm Holdings plc

110 Fulbourn Road

Cambridge

United Kingdom

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒    Form 40-F ☐

Rene Haas Appointment to SoftBank Group International

On April 21, 2026, Arm Holdings plc (the “Company”) announced that its Chief Executive Officer, Rene Haas, will assume the expanded role of Chief Executive Officer of SoftBank Group International (“SBGI”), an operating platform that oversees certain subsidiaries of our controlling shareholder, SoftBank Group Corp., effective April 20, 2026. This position builds on Mr. Haas’s existing role as a director of SoftBank Group Corp. and is intended to support coordination across SoftBank Group Corp.’s portfolio of companies focusing on semiconductors and artificial intelligence development, with the aim of further enhancing operational efficiency.

Mr. Haas’s role at SBGI is expected to be limited and part-time and is not intended to detract from his responsibilities at the Company. Mr. Haas will continue to serve as the Company’s Chief Executive Officer and a member of its Board of Directors.

The information contained in this report on Form 6-K is intended to be furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, unless expressly set forth by specific reference in such a filing.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			ARM HOLDINGS PLC
Date: April 21, 2026			By:			/s/ Laura Bartels
			Name:			Laura Bartels
			Title:			Chief Accounting Officer (Principal Accounting Officer)

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 1.7 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 9.0 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 5.0 KB