According to the filing today, Warren and another insider own 67M shares each. That's 134M shares total. You can bet they're both holding long. So, technically, you can subtract 134M shares from the 499M outstanding share count, because they're not trading on the open market. It leaves 365M shares trading on the open market, at maximum. There are many longs, so probably even less than that. Buy and hold is the name of this game.
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