Slack says it has submitted a confidential draft IPO filing with the SEC
Slack confidentially filed to go public, according to a press release published Monday. — Slack is one of a number of tech IPOs expected in 2019, including Uber, Lyft and Airbnb. — Here is the full release from Slack:
Context & Ripple Effects
This filing is the public confirmation of a run-up that began in September, when sources reported Slack was preparing for a first-half-2019 IPO at an expected valuation above $7B (IPO preparation). By January, sources had narrowed the plan: Slack would skip the traditional roadshow and go public through a direct listing, likely debuting in Q2.
First-order effects
- Slack now enters the SEC review window ahead of a NYSE debut, giving employees and early investors a defined path to liquidity without the company selling new shares.
- The confidential route lets Slack test its disclosure with regulators privately before rivals in the same 2019 class — Uber, Lyft and Airbnb — publish their own filings.
Second-order effects
- If Slack's direct listing executes cleanly, it hands Uber, Lyft and Airbnb a proven alternative to the underwritten IPO, pressuring bankers' pricing role across the entire 2019 tech-IPO queue.
- Competing workplace-software vendors now face a publicly disclosed competitor whose financials — losses and all — become quarterly market data rather than private rumor.
Third-order effects
- A successful direct listing by a company of Slack's scale would entrench the no-underwriter path as a standard option for high-profile growth companies, shifting listing decisions toward exchanges and away from syndicate banks.
- The wave of confidential filings among 2019's marquee tech names points toward a structurally more transparent late-stage private market, where pre-IPO valuations get stress-tested against public financials within months of each other.
The trend: Slack's confidential filing is one move in 2019's cluster of mega tech listings — Uber, Lyft, Airbnb alongside it — where direct listings are emerging as a credible rival to the traditional underwritten IPO.