The Pure Storage IPO, in October 2015, was the culmination of a long process. The company was six years old and had completed six rounds of private funding. Pure had nearly 1,200 employees, and its annualized revenue was nearly $500 million. We’d waited longer and grown larger than many start-ups do before going public. We could have done it a year or so earlier, and there were risks in waiting: By the time we finally listed on the New York Stock Exchange, the IPO market had cooled—in fact, some companies pulled their offerings in the face of market weakness.

A version of this article appeared in the June 2016 issue (pp.37–40) of Harvard Business Review.