Redfin CEO Glenn Kelman is leaving the company after 20 years, effective Jan. 16. 

In an email to employees with the subject line, “Unemployed, In Greenland,” Kelman said the time had come for him to leave after the company completed its integration with Rocket Companies, which acquired the online brokerage for $1.75 billion last year. 

“We’ll start the second, much-longer phase at next week’s all-company meeting, which is much-greater scale. Approaching that, I had to decide whether to be at Rocket for years,” Kelman wrote. “Instead, I want to try finding another mission-driven enterprise outside of real estate.” 

After Kelman’s departure, Rocket CEO Varun Krishna will take over running Redfin until a successor is found. Kelman said he would remain in an advisory capacity through April 1.