SEBI Tightens IPO Rules, Enables Lock-In On Pledged Shares Via System Tagging by NDTV Profits | April 8, 2026 9:16 pm | Latest Posts, Market, Trending News In a circular dated April 8, 2026, SEBI said that in cases where a lock-in cannot be created on certain pledged securities, depositories will now mark such shares as “non-transferable” for the duration of the lock-in period.