Warren Buffett's dealmaker closed the biggest 'blank-check' takeover ever this month. Here's why he may owe the Berkshire Hathaway chief for the deal.

Business Insider

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· *Warren Buffett's dealmaker struck an $11 billion deal to acquire MultiPlan this month, marking the biggest "blank-check" takeover to date.*
· *Former Citi banker Michael Klein got to know MultiPlan and its boss when he advised Buffett's Berkshire Hathaway on a potential purchase of the healthcare group in 2013, the...

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