The Bill and Melinda Gates Foundation made just one stock market play last quarter: selling off $1 billion worth of shares in Warren Buffett’s Berkshire Hathaway. But despite its Berkshire dump, the Gates Foundation’s stock portfolio was still worth $17.864 billion as of its latest SEC disclosure, up some $512 million since last quarter. (NB: If the visualisations don’t appear, try reloading this page in your browser’s “Desktop Mode.”) Still, the Foundation’s portfolio remains Buffett heavy, with $7.1 billion invested in Berkshire Hathaway — representing 40% of Gates‘ total assets under management. After Buffett, Gates‘ next biggest bets are infrastructure and industry…

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