Musk’s Last Dance in Delaware Court Consolidated by Chief Judge

Elon Musk will face coordinated litigation—rather than a flurry of separate lawsuits by Tesla Inc. shareholders—over his alleged insider trades, Twitter Inc. acquisition, and artificial intelligence side projects.

A Delaware judge Monday combined multiple suits filed against Musk and other Tesla board members last spring, in the days and weeks before the world’s richest person moved its most valuable automaker to Texas. Musk, now serving as a government cost-cutting czar in Donald Trump’s second presidential administration, has a net worth of $428 billion, according to the Bloomberg Billionaires Index.

Musk shifted Tesla’s corporate home in June, five months after the ...