Microsoft announced on Friday that Bill Gates is leaving the board, effective Friday. Gates is also stepping down from his position on the board of Berkshire Hathaway.

"I have made the decision to step down from both of the public boards on which I serve – Microsoft and Berkshire Hathaway – to dedicate more time to philanthropic priorities including global health and development, education, and my increasing engagement in tackling climate change," Gates said on LinkedIn. "The leadership at the Berkshire companies and Microsoft has never been stronger, so the time is right to take this step."

"With respect to Microsoft, stepping down from the board in no way means stepping away from the company," Gates said. "Microsoft will always be an important part of my life's work and I will continue to be engaged with Satya and the technical leadership to help shape the vision and achieve the company's ambitious goals. I feel more optimistic than ever about the progress the company is making and how it can continue to benefit the world."