Portola Pharma Rips 20% Higher After FDA Approves Andexxa Antidote By: Benzinga via Benzinga May 04, 2018 at 14:14 PM EDT Portola Pharmaceuticals Inc (NASDAQ: PTLA) shares reclaimed the $40 level for the first time since February after a positive FDA ... Read More >> Related Stocks: Bayer Aktienges ADR Bristol-Myers Squibb Pfizer Portola Pharma