Paramount Group falls after Rithm Capital agrees to buy co for $1.6 bln
** Real estate investment trust Paramount Group's PGRE.N shares fall nearly 11% to about $6.5 in premarket trading ** Asset management company Rithm Capital agrees to buy PGRE for $1.6 billion in cash ** Rithm will acquire all of Paramount's outstanding shares of common stock for $6.60 per fully diluted share ** PGRE shares closed at $7.39 on Tuesday ** As of last close, PGRE shares up nearly 50% YTD (Reporting by Parth Chandna) ((Parth.Chandna@thomsonreuters.com;))