How is Bill Gates worth $59B and not $16B?

According to Wikipedia, Bill Gates owns about 6.4% of MSFT's common shares. Their market cap is $254B. According to my calculations, he should be worth $16.3B (6.4% X $254B = $16.3B).
How do they figure that he's worth this much and not my estimate? My working theory is due to stock options. My working theory is this: He owns $16.3B of stocks, but his options are worth $43B. But this is just my guess.
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Why would anyone care what your estimate is?
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2.7182818284590... wrote:

Forbes claims he's worth $53B

He owns a hell of a lot more than just MS stock and options.
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The rest is under his mattress.
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On 2/7/2012 09:50 AM, momarch wrote:

He's not stupid. He sold his MSFT for AAPL.
--


704set



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