TLDR

The SESC will gain power to probe and fine crypto insider trading offenders.
Japan aims to align crypto laws with existing securities trading standards.
The FSA plans to finalize the framework by late 2025 for FIEA amendment.
Local crypto users in Japan have risen to 7.88 million in five years.

Japan is preparing to tighten oversight of its cryptocurrency market by introducing new rules to combat insider trading. The move seeks to bring digital asset trading under the same regulatory standards as traditional securities. The Securities and Exchange Surveillance Commission (SESC) will gain the authority to investigate suspicious activity, impose fines, and refer severe cases for criminal prosecution under the new framework.

Expanding Regulatory Powers for the SESC

The SESC, Japan’s financial watchdog, is developing regulations that would allow it to monitor, investigate, and penalize insider trading involving cryptocurrencies. According to Nikkei Asia, violators could face fines based on their illegal profits, while serious cases may be referred to prosecutors.

At present, crypto assets are not covered by the Financial Instruments and Exchange Act (FIEA). This gap has made it difficult for authorities to act on insider trading in digital tokens. The SESC’s new powers are intended to close this gap and ensure that the same level of scrutiny applies to both securities and crypto markets.

Framework Development and Legislative Process

The Financial Services Agency (FSA), which oversees the SESC, plans to finalize the regulatory framework by the end of 2025. A proposed amendment to the FIEA is expected to be submitted next year. The FSA aims to create a comprehensive legal foundation for crypto oversight that aligns with existing securities laws.

Currently, the Japan Virtual and Crypto Assets Exchange Association, a self-regulatory body, lacks a system to detect or monitor suspicious trading. Regulators believe that empowering the SESC will strengthen enforcement and improve transparency in crypto trading activities. This marks one of Japan’s most substantial efforts to formalize crypto supervision since the industry’s growth over the past decade.

Challenges in Identifying Crypto Insiders

Authorities face difficulties in determining who qualifies as an “insider” within decentralized digital asset networks. Many cryptocurrencies do not have identifiable issuers, making it hard to track individuals with privileged information. Nikkei Asia noted that regulators have limited experience handling crypto insider trading due to these structural differences.

Despite these challenges, the SESC and FSA are working to establish clear definitions and investigation procedures. The goal is to create enforceable rules that apply fairly across different types of tokens and trading platforms. Regulators believe that better data-sharing mechanisms and closer cooperation with exchanges will be essential in addressing these enforcement gaps.

Growing Market and Political Momentum

Japan’s push for tighter oversight comes as the number of local crypto users has grown fourfold in five years, reaching 7.88 million. This growth represents about 6.3% of the country’s population, indicating rising retail participation in digital asset markets.

Sanae Takaichi, expected to become Japan’s next prime minister, has expressed support for technological development, including blockchain and digital infrastructure. Her approach is expected to encourage innovation while maintaining strict regulatory standards. The government’s broader plan to place crypto regulation under the FIEA aims to improve investor protection and curb issues such as scams, unregistered operations, and inaccurate disclosures.

Japan’s new regulatory direction shows a clear effort to create a safer, more transparent crypto environment while maintaining the country’s commitment to responsible financial governance.

The post Japan plans new crackdown on insider trading in cryptocurrency markets appeared first on CoinCentral.

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Filed under: News - @ October 15, 2025 4:24 am