According to Broadcasting Cable, investment company and hedge fund manager Elliot Management said it now controls 8.8% of the shares in Nielsen. The shares are worth $660 million and Elliot Management is urging the company to put itself up for sale. Neilsen reported on July 26 that it was launching a strategic review that could lead to a sale of its troubled buy-side unit. Nielsen stock, which had closed at $29.56 on July 25, closed on July 26 at $22.11, down 25%.