Saba Capital Management has added more UK investment trusts to its activist campaign and plans to further shake up the sector, the hedge fund's founder Boaz Weinstein told a London School of Economics conference on Monday.

Activist hedge fund manager Boaz Weinstein has kicked off a new campaign against four UK investment trusts following a failed attempt to gain control of some funds earlier.

Boaz Weinstein's firm Saba Capital announced that it will call meetings at the trusts to vote on whether to change their structure.