Egnyte, a SaaS leader in content management, has been sold to private equity for $1.5 billion after 18 years.The CEO, who has been with the company since its inception, will continue in the role.The company has achieved consistent 20-25% growth once at scale, with estimated annual recurring revenue (ARR) of around $250 million.Egnyte raised $137 million in venture capital and had a last round valuation of $460 million.