His latest is White Claw, the “hard seltzer” that was the hit of the summer among millennials, outselling every craft beer and even heavyweights like Budweiser in the U.S. for stretches at a time.

It was the latest in a string of successes that includes Mike’s Hard Lemonade and has given von Mandl, 69, a net worth of about $3.4 billion, according to the Bloomberg Billionaires Index.

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