Here's who's getting rich on Slack's multi-billion dollar IPO

Slack, the workplace messaging app, is about to go public in a multi-billion IPO.
Some of the company's early investors have stakes worth billions, and many employees have shares worth millions.
Here are the people and investors who stand to make the most.Slack has released its SEC paperwork to become a public company giving us our first glimpse at its financials and top investors.
As is typical these days, Slack is using a two-tier structure where it will sell Class A shares to the public, with