It’s been an expensive year for hedge fund manager Ken Griffin. The billionaire investor launched into 2019 by buying a $122 million mansion in London. A pied-a-terre in the Robert A.M. Stern-designed 220 Central Park South, one of the city’s most exclusive addresses, followed; the $238 million Griffin paid for that property set a record for New York.

This week, Griffin added to his Palm Beach estate by buying a $99.1 million property adjacent to it. Both properties are ocean-to-lake—that is, flanked by water—with the Atlantic on one side, and the Intracoastal Waterway on the other. The 18,500 square-foot mansion sits on a 3.6-acre lot. The acquisition rounds out the size of Griffin’s Palm Beach estate to 20 acres, with 1,200 feet of private beach to boot.

The 17 acres of property that Griffin owned prior to the purchase was itself cobbled together in several transactions, the first of which was recorded in 2012. In all, Griffin has spent upwards of $350 million assembling the estate in Palm Beach. Not to mention the expense of renovating to taste, and razing homes after purchasing the properties.

In 2016, Griffin, in a well-publicized deal, bought a pair of abstract expressionist paintings—a de Kooning and a Pollock—for $500 million. His high-profile purchases of the last several years add up to well beyond a billion dollars.

Griffin is the founder and CEO of investment firm Citadel. His net worth is north of $12 billion.

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