Tim Cook is worth $625 million and leads a $1 trillion company - but he reportedly buys discounted underwear and prefers hiking to yachting

Richard Drew/AP

Tim Cook's net worth is estimated around $625 million.

• Apple CEO Tim Cook's net worth is estimated to be $625.37 million.
• That's mostly from Apple stock options.
• But the native Alabaman doesn't live very lavishly.

Apple CEO Tim Cook, 57, is at the helm of the only company in the world that's worth $1 trillion.

But he actually is a lot less wealthy than leaders of other, less revenue-generating corporations. He's worth "only" $625 million, while folks like Mark Zuckerberg, Jeff Bezos, and Larry Page are worth tens of billions.

Cook, who is the son of a shipyard worker and a pharmacy employee, said he's not motivated by money - and that shows through in what we know about the private CEO's habits.

Here's how Cook made his millions and what he does with them.