A number of large institutional investors, such as Blackstone and H&F private equity funds, plan to file a joint application for the acquisition of Nielsen Holdings, which provides data and marketing information, the Financial Times reports, citing informed sources. The cost of Nielsen is estimated at 17 billion dollars. The shareholder of Elliott Management put forward requirements that imply an assessment of possible business development options. Among the options he sees the transition of the company to private ownership, its full or partial sale. The deal to buy Nielsen can be one of the largest buybacks using borrowed funds over the past 10 years.