Live feed21:07:00·1574dINSIDERFilingvia QuantisnowSEC Form 4: Chen Weidong converted options into 50,493 shares and covered exercise/tax liability with 16,108 shares, increasing direct ownership by 2% to 2,129,746 units to cover withholding taxByQuantisnow·Wall Street's wire, on your screen.CASA· Casa Systems Inc.TechnologyOriginal source