Salesforce acquires Slack for over $27 billion, marking cloud software vendor’s largest deal ever

  • Salesforce is buying Slack using a combination of stock and cash.
  • Prior to Slack, Salesforce’s biggest deals were the $15.3 billion purchase of Tableau last year and the $6.5 billion acquisition of MuleSoft in 2018.
  • The deal pits Salesforce against Microsoft in yet another market, with the companies already going head-to-head in sales software, data visualization and productivity tools.



Marc Benioff wearing a suit and tie: Marc Benioff, founder, chairman and CEO of enterprise cloud computing company Salesforce.


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Marc Benioff, founder, chairman and CEO of enterprise cloud computing company Salesforce.

Salesforce is making the biggest acquisition in its 21-year history. The company announced on Tuesday that it’s buying chat software developer Slack for over $27 billion.

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Through a combination of cash and stock, Salesforce is purchasing Slack for $26.79 a share and .0776 shares of Salesforce, according to a statement. That comes to about $45.86 a share. Prior to initial reports of a deal last week, which led to a 38% pop in

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