Live feed19:06:56·168dINSIDERFilingvia QuantisnowDirector Billerbeck Darin G exercised 12,000 shares at a strike of $7.20 and sold $113,040 worth of shares (12,000 units at $9.42) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MRAM· Everspin Technologies Inc.TechnologyOriginal source