Live feed19:27:22·600dINSIDERFilingvia QuantisnowDirector Singleton J Matthew exercised 16,000 shares at a strike of $4.48 and sold $1,272,000 worth of shares (16,000 units at $79.50) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.VKTX· Viking Therapeutics Inc.Health CareOriginal source