Coinbase Is Said to Be Valued at $90 Billion in Private Auction

Coinbase Global Inc. shares changed hands at a roughly $90 billion value last week, in what could be the final chance for investors to trade its private stock before the cryptocurrency exchange goes public, according to people familiar with the matter.

That valuation is based on $350 a share, the price the stock was trading at on the Nasdaq Private Market auction that ended last Thursday, the people said, asking not to be identified because the information was private.

Thursday’s auction was the last time shares are being sold on the Nasdaq Private Market before Coinbase goes public in late ...