Here’s what’s been happening on Wall Street overnight

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Amazon, JPMorgan, and Berkshire Hathaway have picked the CEO to run their joint health venture

The healthcare venture that JPMorgan, Amazon, and Berkshire Hathaway announced back in January finally has a CEO.

The three employers have selected Dr. Atul Gawande, a surgeon who is also a professor at the Harvard T.H. Chan School of Public Health and at Harvard Medical School, they said in a news release. The venture will be based in Boston.

The venture, announced in January, is aimed at lowering healthcare costs for the companies’ employees, though there haven’t been many details about what that looks like.

Disney boosts its offer for 21st Century Fox assets

Disney has raised its offer for 21st Century Fox assets to $US38 a share, or $US71.3 billion in all.

The increased offer comes one week after Comcast crashed Disney’s attempt to buy the assets with a $US65 billion bid, following the US Justice Department’s approval of AT&T’s merger with Time Warner. Disney originally bid $US28 a share back in December.

Former D.E. Shaw hedge fund manager planning legal action

Things might be about to get heated in a dispute between $US50 billion hedge fund D.E. Shaw and a fired portfolio manager.

Daniel Michalow, a former senior portfolio manager in the firm’s discretionary macro group, plans to take legal action against his former employer next month, a person familiar with the matter said. Michalow plans to file a statement of claim in arbitration next month with the Financial Industry Regulatory Authority. Michalow plans to claim that the New York hedge fund, in its response to Michalow’s termination, defamed him in internal and external communications and to the media.

Goldman Sachs has hired a rising star from Moelis

Goldman Sachs has hired a rising star from Moelis & Company who has advised health and wellness companies on mergers and investments.

Aarti Kapoor, 32, will join Goldman’s consumer and retail investment banking group, according to people familiar with the matter. She spent nearly nine years at Moelis, according to her LinkedIn profile.

Goldman has been chasing after deals from such middle-market and high-growth companies from regions across America as part of a goal to cover more than 1,000 new companies and add $US500 million in new investment-banking revenue.

Shakeup in the ICO market

Chris Concannon, the president of Cboe Global Markets, is one of Wall Street’s biggest crypto advocates. But the trading veteran thinks investors should lay awake at night worrying about the uncertainty hanging over the market for initial coin offerings, the popular crypto crowdfunding method.

“The reckoning will come in two waves,” Concannon said in an interview with Business Insider. First, the SEC will go after ICO market participants. Then, class-action lawsuits against the teams behind ICO projects will surge.

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