I don't think there needs to be much "reporting".

Intel has a rule where c-suite and up execs who have been at the company 5+ years must hold a minimum amount of stock. For the CEO, that number is 250,000. The CEO recently exercised options and immediately sold them, holding onto the absolute minimum required (250k).

This is all available on the SEC's website, trades like this are reported to the SEC and are considered public information.