The Most Valuable Unicorns — and Their Hedge Fund Backers

Tiger Global and Glade Brook have investments in several of the most valuable private companies.

(Michael Nagle/Bloomberg)

(Michael Nagle/Bloomberg)

Another day, another successful unicorn IPO.

Shares of Slack Technologies, which went public on Thursday, closed at $38.62, up 48.5 percent from its reference price of $26 after opening for trading at $38.50.

The workplace-messaging company used a direct listing, an unusual method for going public, where by there were no underwriters and the company did not sell shares.

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