Live feed17:02:43·640dINSIDERFilingvia QuantisnowDirector Niggli Michael R exercised 11,852 shares at a strike of $6.88, increasing direct ownership by 18% to 77,312 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.GWH· ESS Tech Inc.MiscellaneousOriginal source