Indonesia Bourse and Depository Tighten Transparency by Disclosing Controlling and Affiliated Shareholders Above 1%

JAKARTA, Investortrust.id — Indonesia's capital market authorities are significantly raising the bar for corporate transparency by mandating the disclosure of controlling shareholders and their affiliated parties across all listed entities.

The Indonesia Stock Exchange (IDX), in partnership with the Indonesian Central Securities Depository (KSEI), announced that monthly shareholding reports for stakes exceeding 1% will now explicitly identify whether a stakeholder serves as a controlling shareholder or an affiliate of one. The initiative is aimed at unwinding complex, opaque shareholding networks, mapping ownership concentration, and giving market participants a clearer view of underlying corporate governance structures.

Regulatory Backing and Implementation Timeline

The transparency overhaul is formalized under IDX Board of Directors Decree No. Kep-00160/BEI/11-2026, issued on November 2, 2026. The decree revises previous regulations governing the Monthly Shareholding Registration Activity Report (Laporan Bulanan Kegiatan Registrasi Kepemilikan Saham or SK LBRE) and has secured formal approval from Indonesia's Financial Services Authority (OJK).

Under the updated directive, listed companies must submit granular ownership breakdowns detailing any shareholder with an equity stake above 1%, complete with their classification as a controlling entity or an affiliated person or institution. Market authorities will publish this compiled data set on a monthly basis via the official IDX web portal, with disclosures officially starting with data as of October 30, 2026.

Enhancing Investor Diligence and Market Surveillance

The move comes as regulators seek to align domestic market infrastructure with international standards of market integrity and investor protection. Providing an unvarnished view of ownership concentration enables domestic and institutional foreign investors to better evaluate governance risks, voting power distribution, and related-party transaction risks before committing capital.

Simultaneously, the enhanced transparency regime provides market regulators with stronger intelligence tools for real-time surveillance. By clearly identifying how controlling parties and their related entities hold equity across various vehicles, surveillance units can more effectively monitor unusual price swings, detect potential market manipulation, and verify adherence to statutory public float requirements.

Investors and market analysts can access the expanded data set directly through the IDX portal under the Listed Companies section by navigating to the Share Ownership Data module.

MSCI-Induced Regulatory Pressure and Float Scrutiny

The heightened disclosure requirements arrive against the backdrop of sustained scrutiny from global index benchmark providers, most notably MSCI Inc. International index evaluators have repeatedly flagged Indonesian equities for low genuine public floats and complex cross-holding structures, which often obscure true market liquidity and artificially constrain investable weightings for institutional emerging-market funds.

To address these structural concerns and prevent benchmark downgrades or index weight reductions, the Indonesia Stock Exchange and the Financial Services Authority (OJK) have accelerated sweeping market-microstructure reforms. By unmasking entities with stakes above 1% and mapping their direct or indirect affiliations with controlling shareholders, bourses authorities can accurately differentiate between passive secondary-market liquidity and strategic holdings masquerading as free float. Regulators expect the sharper accounting of genuine tradable shares to align domestic equity governance with international index methodologies, ultimately supporting institutional capital inflows and reinforcing market integrity.