PALO ALTO (CBS SF) — Tesla raised a whopping $738 million in a recent stock sale, netting the electric carmaker more than $200 million more than they had estimated.

According to an SEC filing, Tesla estimated the net proceeds from the offering at $738.3 million after deducting underwriting discounts, commissions, and other expenses.

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CEO Elon Musk announced that he was planning to get in on the action with a $20 million purchase of shares.

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Wall Street had been expecting the move after Musk announced during a second quarter earnings call that raising capital for the company would be valuable “as a risk reduction measure.”

Palo Alto-based Tesla will begin shipping the Model X SUV, its third vehicle, in early 2016.

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