The SEBI (Prohibition of Insider Trading) Regulations, 2015 define unpublished price sensitive information, restrictions on communication and trading of such information by insiders. Unpublished price sensitive information refers to financial results, dividends, capital structure changes, mergers and acquisitions, changes in key personnel, and material events that could affect a company's stock price. Insiders are prohibited from communicating, providing access to, or procuring any unpublished price sensitive information, except on a need-to-know basis or for legitimate purposes. Such information can only be disclosed for transactions requiring an open offer or if the board decides the transaction benefits the company and the information is disclosed at least two days prior.