In an earlier post, Mihir had remarked that while arguments for legalizing insider trading are interesting, there is a long way to go before they are actually accepted by legal systems. SEBI’s recent move to tighten insider trading norms is a case in point. ET reports that SEBI will soon amend its regulations to ban insiders from any opposing transaction within a period of six months. ‘Insider’ has been defined quite widely, and includes any ‘officer’ of a company who owns more than 10 %, either directly or indirectly. ET’s detailed analysis of this proposal is available here.