Dropbox CEO Drew Houston is stepping down after 19 years at the helm of the cloud storage company, transitioning into an executive chairman role. Ashraf Alkarmi, the current product chief, will take over as co-CEO and eventually become the sole CEO. Houston founded Dropbox at the age of 24 and has led the company to become a household name in Silicon Valley. The company has faced challenges in distinguishing itself from competitors and has seen its market cap decline in recent years.