Slack Reveals Losses Amid Rapid Growth in Plan to Go Public

Slack Technologies Inc. submitted its plans to U.S. regulators to go public through an unusual direct listing.

The workplace-messaging company’s filing April 26 confirms its plans to avoid a traditional public offering and instead list its shares directly on the New York Stock Exchange under the symbol SK.

The filing gives potential investors their first look at key financial information, revealing stable net losses against a backdrop of rapid revenue growth. Slack had a net loss for the year ending Jan. 31 of $139 million on revenue of $401 million, compared to a net loss of $140 million on revenue ...