Live feed16:25:25·401dINSIDERFilingvia QuantisnowLarge owner Gc Investments Llc returned $33,900,000 worth of shares to the company (300,000 units at $113.00), closing all direct ownership in the company (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ALTR· Altair Engineering Inc.TechnologyOriginal source