TOKYO -- Hitachi has been trying to resolve the problem of a parent and subsidiary listing their stocks together in the stock market, but the Japanese electronics maker has been troubled by its Italian unit.
U.S. hedge fund Elliot Management, known as an activist shareholder, acquired a 30% stake in Italian railway signal maker Ansaldo STS, in which Hitachi has a 51% stake, to become a top shareholder. Ansaldo's board is now divided into six directors picked by Hitachi and three picked by Elliot.
