Atlassian just invested in them as part of a dope deal to switch to Slack. Much to the chagrin of everyone who wants to run their development toolchain entirely on-premises.
Could be that a promise of IPO Real Soon Now factored into that exchange. But the original investors and the employees have to be thinking "we're not gonna get that much more successful than now. Where's my money?"
> As part of this partnership, Atlassian has made an equity investment in Slack, and Slack has acquired the IP for Stride and Hipchat Cloud, both of which we will discontinue.
It's a distinction without a difference. At the end of the day, the deal was to shut down Hipchat - in exchange Atlassian was paid with shares of Slack.
Might not officially be an "investment" but it more or less amounts to the same thing.
Could be that a promise of IPO Real Soon Now factored into that exchange. But the original investors and the employees have to be thinking "we're not gonna get that much more successful than now. Where's my money?"