This document discusses insider trading and the case of Hindustan Unilever Limited vs SEBI. It provides details of the legal controversy where SEBI charged HUL with insider trading for purchasing shares in Brooke Bond Lipton India Ltd. two weeks before announcing their merger. SEBI directed HUL to pay compensation to UTI and initiated criminal proceedings against common directors, though HUL appealed and the appellate authority ruled in its favor. The document also covers advantages and disadvantages of insider trading, and the need to regulate it to maintain trust and prevent market manipulation.