Apple's in-house teams of experts are beginning to exercise their stock options, reports the Mercury News.

The report focuses on Apple senior vice president for software engineering Bertrand Serlet, who played a "critical role" building Mac OS X.

Serlet cashed in $3.2 million in stock last July, and $7.6 million in the last year, according to Apple's legally required insider trading disclosures. Serlet uses a legally-sanctioned automatic stock sales plan to conduct these trades.

A host of other executives have also been cashing in on Apple's new boom time, including: Phil Schiller; Jon Rubenstein; Sina Tamaddon and Avadis Tavanian. US law means such trades must be disclosed. You can check for insider trades here.

Apple has faced pressure in recent years to change the way it furnishes stock options to its executives. Apple CEO Steve Jobs has argued these to be essential in order to attract and to retain the best talent.