US opens antitrust probe into Arm Holdings chip licensing

US regulators have opened an antitrust investigation into Arm Holdings over how the British chip designer licenses its technology, according to reports on May 15 and 16, 2026.

The review focuses on whether Arm may restrict or downgrade access to its blueprints, a step that could affect major semiconductor companies and wider competition in the chip market.

Regulators and reporters

The investigation is described as part of broader scrutiny of Arm’s licensing model and its role in the semiconductor supply chain. Reported concerns center on whether access to Arm’s designs could be used to disadvantage rivals.

Arm Holdings

Arm said Qualcomm’s anticompetitive allegation was baseless and called it a bid to gain leverage in their commercial dispute. The company’s position is that the complaint is strategic rather than a fair description of its business conduct.

Qualcomm

Qualcomm’s complaint has helped trigger the scrutiny, reflecting its dispute with Arm over commercial terms and access to chip technology. From that perspective, the issue is whether Arm’s licensing practices may distort competition among chipmakers.

  • Arm’s designs are used in many devices because they are licensed widely rather than sold as finished chips.
  • The FTC can seek remedies that reshape business practices without breaking up a company.
  • Semiconductor licensing disputes often matter far beyond one firm because they can influence the whole industry.
US opens antitrust probe into Arm Holdings chip licensing | Implica