A Murakami-associated fund has taken an almost 5% stake in Keikyu and owns fewer than 1% of Keisei shares, according to a Monday report by Toyo Keizai, citing an unidentified person.
Shares in Japanese train operators Keisei Electric Railway and Keikyu jumped Monday morning following reports that a fund linked to activist investor Yoshiaki Murakami has built stakes in both companies.
Keisei’s stock jumped over 18%, its sharpest intraday rise since October 2008, with Keikyu climbing more than 16%, the most since 1987.

