[thomasknowles]

When did selling shares (especially when you have many) become dumping? As I recall he's doing his humanitarian bit nowadays, which strangely enough costs money.

[jlgosse]

I'm pretty sure you're right - Bill donates BILLIONS of dollars to charity and humanitarian cause(s), so he needs to have billions on hand to do that.

You don't see Steve Jobs "dumping" his shares because he doesn't donate most of his money, like Bill Gates does.

[notahacker]

Also, Steve Jobs (until recent health issues) was very active in every aspect of Apple, whereas Bill Gates has been in the process of disengaging himself from Microsoft.

[zachallaun]

And just a little while ago Eric Schmidt was dumping his shares!

You're completely correct. There's many reasons to "dump" shares, and very few of them are indicators of something bad.