Microsoft Corp (MSFT.O) agreed to buy LinkedIn Corp (LNKD.N) for $26.2 billion in cash, the companies said in a statement on Monday.
The offer of $196 per share represents a premium of 49.5 percent to LinkedIn's Friday closing price.
"Today is a re-founding moment for LinkedIn," Reid Hoffman, chairman of LinkedIn's board, said in a statement.
Jeff Weiner will remain chief executive of LinkedIn, reporting to Microsoft CEO Satya Nadella.
The deal is expected to close in 2016.
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