Lauren Hirsch

By backing Precision Neuroscience, the billionaire Bill Ackman joins Elon Musk and Jeff Bezos in diving into an emerging industry.

The brother of Jared Kushner is an influential venture capitalist with big bets on A.I. and health insurance.

Companies are seizing on what many say is perhaps the most favorable regulatory environment for businesses in years.

This year’s boom includes the most spent on global deal-making in a six-month period in a decade. But questions persist about whether it can continue.

Almost as soon as the two companies announced a split, analysts rushed to consider potential merger and acquisition targets for each.

The $111 billion deal would unite two major movie studios and put CNN under the same roof as CBS News.

Wall Street is giving its richest clients velvet rope access to this week’s public listing of SpaceX, reflecting the growing importance of the wealth management business.

Jamie Dimon himself is planning to pitch investors on the offering of Elon Musk’s rocket company, as banks prepare to reap huge fees from the largest I.P.O. ever.

New York City’s mayor said the company’s proposed acquisition of Intermex could make it costlier for immigrants to send money abroad.

The online marketplace called the cash-and-stock proposal “neither credible nor attractive.”