https://www.wired.com/story/bill-gates-steps-down-microsoft-board/

On March 13, 1976, Microsoft became a public company. Its founder and CEO, a 26-year-old Bill Gates, took a seat on its board of directors. Forty-four years later—exactly to the day—Gates is stepping down.

Gates explained the move on Friday in a brief LinkedIn post, in which he also said he was leaving the board of Berkshire Hathaway, the conglomerate led by his longtime friend Warren Buffett. The reason for these departures, Gates wrote, was “to dedicate more time to philanthropic priorities including global health and development, education, and my increasing engagement in tackling climate change.” Coming as Gates joined the epic battle against Covid-19, the timing seems particularly apt.