The new SEBI (Prohibition of Insider Trading) Regulations, 2015 were notified on January 15, 2015 to tighten regulations around insider trading. Key aspects of the new regulations include expanded definitions of "insider" and "connected persons", prohibitions on trading based on unpublished price sensitive information, increased responsibilities for compliance officers, requirements for initial and continual shareholding disclosures, and penalties for non-compliance. The regulations aim to align India's insider trading framework with global standards and plug existing loopholes.