The United States Federal Trade Commission has launched an antitrust investigation into Arm Holdings over concerns about its semiconductor licensing practices, according to reports from Bloomberg News.
The probe is focused on whether the UK-based chip designer may be using its dominant position in the semiconductor industry to restrict competition or unfairly control access to its technology.
Arm Holdings is a key player in global chip design, providing licensing technology used by major firms including smartphone and computing manufacturers around the world.
The investigation reportedly examines whether Arm could be limiting or altering licensing agreements for its chip architecture, which is widely used in central processing unit (CPU) designs. These agreements are central to how semiconductor companies build and develop modern processors.
The FTC has not publicly confirmed the details of the probe, but sources cited in the report say the regulator informed Arm earlier this year and requested the preservation of internal documents as part of the investigation process.
Arm has not publicly commented on the alleged investigation. The FTC also declined to respond to media inquiries regarding the case.
The scrutiny comes at a time when global regulators are paying closer attention to the semiconductor industry, which plays a critical role in everything from smartphones to artificial intelligence systems and cloud computing infrastructure.
The case also overlaps with a broader commercial dispute involving Arm and US chipmaker Qualcomm. The disagreement centers on whether Qualcomm violated licensing terms after acquiring chip startup Nuvia.
Arm has previously rejected Qualcomm’s claims of anti-competitive behavior, describing them as part of a commercial strategy dispute rather than a legal violation.
Semiconductor licensing is a major source of revenue for Arm. The company earns income by allowing firms to use its chip designs, which are then adapted for a wide range of processors used in consumer electronics and data centers.
Major technology companies such as Nvidia and Apple also rely on Arm-based architectures in many of their products, highlighting the company’s central role in the global tech supply chain.
The FTC investigation is part of a wider trend of increased regulatory attention on dominant technology firms, particularly those involved in critical infrastructure such as chips and software platforms.
Outside the United States, Arm is also facing scrutiny from other competition regulators. Authorities in South Korea previously investigated the company’s offices as part of a broader review of its licensing practices in the semiconductor market.
Regulators are increasingly concerned about whether control over chip architecture and licensing models could limit innovation or create barriers for smaller competitors trying to enter the market.
The outcome of the US investigation could have significant implications for the global semiconductor industry, especially as demand for advanced chips continues to rise due to artificial intelligence development and high-performance computing needs.
Industry analysts say any regulatory action involving Arm could reshape licensing standards and influence how chip design companies structure their partnerships and agreements.
For now, the investigation remains in its early stages, and no formal charges or penalties have been announced. However, the probe signals growing pressure on key players in the semiconductor ecosystem as governments seek to ensure fair competition in a strategically important sector.

