Musk, Tesla Oppose Bid to Merge Twitter, AI, Insider Trade Suits

Two pension funds are asking a judge to combine a group of lawsuits that allege Elon Musk harmed Tesla Inc. by making insider trades, buying Twitter Inc., and steering resources to artificial intelligence-related side projects.

Rhode Island’s retirement system and a Cleveland union fund moved Wednesday to consolidate the three cases, each a shareholder suit filed in Delaware’s Chancery Court days before Musk moved the automaker’s charter to Texas. The disputes concern “overlapping claims involving essentially the same defendants,” according to the brief court filing.

Although the funds made the motion jointly, it could preview a high-stakes fight to ...