https://qz.com/1215389/the-dropbox-ipo-is-a-transformative-moment-for-y-combinator/

Dropbox on Feb. 23 announced plans to raise $500 million through an initial public offering (pdf), making the 11-year-old file-storage startup the first company in Y Combinator’s portfolio to make a market debut.

It’s a big moment not just for Dropbox, but for the incubator. Y Combinator has a backlog of big companies, including Stripe and Airbnb, that will go public eventually. And so the Dropbox IPO marks a turning point for a company that has established an enormous imprint in Silicon Valley.