** Shares of life insurer Brighthouse Financial BHF.O rise 20.3% to $54.93 in early trading
** Aquarian Holdings in advanced talks to take private U.S. life insurer Brighthouse Financial in $4 billion deal, Financial Times reports, equating to $69.98 per share according to Reuters' calculation
** Reuters earlier reported Aquarian would pay $70 per share; Sixth Street also explored the deal after talks cooled in September
** Aquarian, backed by Abu Dhabi's Mubadala and RedBird Capital Partners, focuses on insurance and asset management
** Brighthouse, Aquarian and Sixth Street did not immediately respond to requests for comment
** Among 10 analysts covering BHF, average rating is "hold"; median PT at $53
** BHF stock down 4.89% YTD, as of last close
(Reporting by Tharuniyaa Lakshmi in Bengaluru)
((tharuniyaa@thomsonreuters.com))