Slack Technologies will do a direct listing on the New York Stock Exchange this summer.
The Wall Street Journal, after talking to "people familiar with the matter," reported that the San Francisco-based workplace messaging company would take the rare step of using a direct listing to go public in June or July.
The music streaming company Spotify Inc. successfully used a similar listing method on the NYSE last year.
A direct listing doesn't allow a company to raise money when it goes public, nor…
