** Shares of life insurer Brighthouse Financial BHF.O rise 26% to $65.25 in premarket trading
** Aquarian Capital to take Brighthouse private in a $4.1 billion deal
** Aquarian will pay $70 per share of Brighthouse, representing a 37% premium to its closing price on January 27, a day before reports merged that the company had put itself up for sale
** Backed by Abu Dhabi's Mubadala and RedBird Capital Partners, Aquarian focuses on insurance and asset management
** Among 10 analysts covering BHF, average rating is "hold"; median PT at $53
** BHF stock up ~7.83% YTD, as of last close
(Reporting by Anuj T in Bengaluru)