https://www.reuters.com/article/us-grab-m-a-altimeter-capital-spac/softbank-backed-grab-in-talks-to-go-public-in-nearly-40-billion-spac-deal-sources-idUSKBN2B32RX >Grab Holdings Inc is in talks to go public through a merger with a special purpose acquisition company that could value the ride-hailing giant at nearly $40 billion, making it the largest ever blank-check deal, people familiar with the matter said on Thursday.