Stewart Butterfield (C), co-founder and chief executive officer of Slack, and Allen Shim (2nd L), chief financial officer of Slack, ring the opening bell the New York Stock Exchange (NYSE), June 20, 2019 in New York City.
Drew Angerer | Getty Images
Salesforce stock dropped more than 4% on the news.
The deal would likely value Slack at more than its market cap, prior to the report, of $17 billion, according to the report.
Salesforce has been on an acquisition spree, taking advantage of its market cap growth in recent years to buy growth. It acquired MuleSoft for $6.5 billion in 2018, the company’s biggest deal ever at the time, to help connect cloud applications. The following year it spent more than twice that amount on Tableau, acquiring the data visualization company for $15.3 billion. Slack would be one of the biggest software deals ever for the industry.
A deal is not guaranteed and the talks could call through, the Wall Street Journal reported.
Shares of Microsoft, which competes with Slack through its Teams offering, dipped slightly.
This is a developing story. Please check back for updates.