Pleasanton, Calif.-based 10x Genomics Inc. priced its initial public offering to raise $390 million and then immediately climbed in the first hours of trading. The single-cell sequencing company had upwardly revised its share price range twice – and then priced above the latest one at $39 per share, heading to above $55 (NASDAQ:TXG) in its first few hours as a public company. That gave it a market cap of about $5.1 billion. 10x Genomics also took advantage of its momentum by boosting the number of shares to 10 million from the anticipated 9 million.