Activist investor Nelson Peltz's Trian Fund Management has accumulated a stake worth more than $2.5 billion and is planning a fresh push for board seats at Disney, the Wall Street Journal reported on Sunday, citing people familiar with the matter.

(This story has been refiled to correct the spelling of Nelson Peltz in paragraph 1)

(Reporting by Urvi Dugar in Bengaluru; Editing by Krishna Chandra Eluri)