Live feed16:30:09·39dINSIDERFilingvia QuantisnowDirector Song Haiyan returned $1,820,592 worth of shares to the company (22,560 units at $80.70), closing all direct ownership in the company (SEC Form 4) to satisfy tax liabilityByQuantisnow·Wall Street's wire, on your screen.CSGS· CSG Systems International Inc.TechnologyOriginal source