Gates started selling off large portions of MSFT a long time ago, but at a very controlled and planned rate. Investors do not like to see serindipitous transac

Gates started selling off large portions of MSFT a long time ago, but at a very controlled and planned rate. Investors do not like to see serindipitous transactions at that scale, from post-Founders who are still effectively 'Godheads' even if they are not in control. Just like coupon payments or stock dividends, what matters is the consistency. So they signal well in advance, offer a structured plan, and then sell of $X every year, which goes into Gates Foundation etc.. It's 100% the purview of these mega donors to enshrine some kind of vision for their funds, which may last a long time, if not generations. They make take the view that they will invest 100% of the money into a charity fund, and the returns from that fund get distributed. I don't think there is really any specific merit in 'how quickly you give your money away'. Mackenzie was 'one degree removed' from Amazon as it was built, she probably feels less attached to it, and maybe she just wants to push it out the door now, that's fine, good on her, but I don't think it means anything really.