Elliott Management Pushes for Changes at Sempra Energy

Activist Elliott and investment firm Bluescape have built a 4.9% stake in Sempra

Sempra Energy’s new chief executive has an activist investor to contend with less than two months into the job.

Activist Elliott Management Corp. is hoping to strike a deal with the energy-services holding company and its CEO Jeff Martin to replace six board members and initiate a strategic review of the company, which Elliott argues has become a scattered conglomerate with disparate pieces.

Elliott...