Alternative asset manager Blackstone is reportedly set to acquire an 80% stake in Sony Payment Services, a payment service provider under Sony Group. The deal, valued at approximately $280 million, is expected to be announced as soon as Friday (Dec. 22), Bloomberg reported Thursday (Dec. 21), citing an unnamed source. Neither Blackstone nor Sony Payment Services immediately replied to PYMNTS’ request for comment. Sony Group, renowned for its electronics and entertainment offerings, also operates a financial ...