Live feed20:57:51·462dINSIDERFilingvia QuantisnowSVP, Operations and Strat Deve Landes Gregg covered exercise/tax liability with 499 shares, decreasing direct ownership by 2% to 29,354 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ASPN· Aspen Aerogels Inc.Consumer DiscretionaryOriginal source