SEBI, by way of its Circulars dated August 5, 2022, and July 19,
2023, had introduced a framework for an automated system to
restrict trading by Designated Persons
('DPs') of listed companies by freezing
their Permanent Account Numbers ('PAN') at
a security level, during the trading window closure period.
Considering the effective implementation of this framework for
DPs, recently, by way of a Circular dated April 21, 2025, SEBI has
extended this automated trading window closure mechanism to the
immediate relatives of such DPs for listed companies.
The revised framework will apply to the top 500 listed companies
(by BSE market capitalisation as of March 31, 2025) from July 1,
2025, and to all other listed companies (including companies which
may get listed after the issuance of the Circular dated April 21,
2025) from October 1, 2025.