Posted in Web Warren Buffett dumps all his Costco stock — 3 reasons why … October 19, 2021 Warren Buffett has surprisingly exited stage left on one of the most dominant retailers on the planet: Costco ().The Oracle of Omaha’s Berkshire Hathaway exited its remaining stake in Costco … https://finance.yahoo.com/news/warren-buffett-dumps-all-his-costco-stock-3-reasons-why-that-is-a-big-surprise-235600486.html