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Facebook founder Mark Zuckerberg plans to sell shares in his company worth about $2.3bn.

The sale of 41.4 million shares will reduce his voting power in the company from almost 60% to 56%.

Facebook says Mr Zuckerberg will use money raised from the share sale to pay a tax bill, related to another share transaction.

Mr Zuckerberg's sale is part of a by the company of 70 million new shares.

first sold shares on the stock exchange in , priced at $38 each.

They are now trading at about $55, a rise of almost 45%.

Investors have been encouraged by strong results.

In the third quarter of this year, Facebook reported a 60% surge in revenue, to $2.02bn (£1.26bn),

Advertising sales grew by 66% to $1.8bn, with nearly half of that coming from mobile ads.