Mark Zuckerberg is selling a lot of Facebook shares in these days (twitter.com)

Executives at public companies are often subject to lock-up periods when they can sell their stock. That is likely the case here, and nothing can be inferred from it.

Might be a ‘Signal’

CEOs and other officers typically have schedules to sell stock, precisely to avoid a situation where selling lots of shares might be interpreted as being a sign.

That's not 'a lot'. Selling 0.01% of his FB stocks in a day is nothing. If he kept that pace whole year he would have sold 3.5% of his FB stocks.

Some people are just bad with numbers and understanding them in context.

Can't wait for the Twitter Share bloodbath tomorrow.