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Buyer revealed: Hedge funder Nick Maounis pays $75M for Miami Beach estate, sources say

Reported by Therealdeal
May 1, 2025· 3 min read
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Key Takeaways
  • • Hedge fund manager Nick Maounis and his wife, Susan, paid $75 million for the 21,700-square-foot, nine-bedroom mansion at 88 La Gorce Circle in Miami Beach, according to The Real Deal, citing sources.
  • • The seller was Okto, owned by the Kollmans, a wealthy German family. The sale marks a record for completed homes on the island and is among the most expensive home sales in Miami-Dade County.
  • • Maounis founded Amaranth Advisors, which collapsed in 2006 after losing more than $6 billion on natural gas futures. He is now CEO of Greenwich, Connecticut-based Verition Fund Management, which manages about $12.6 billion, up from about $1 billion in 2019, per the Wall Street Journal.
  • • The Maounises already own a Pine Tree Drive waterfront estate, bought for $26 million in 2022, and the new buyers plan a gut renovation of the La Gorce property.
Summary
Hedge fund manager Nick Maounis is the buyer who recently paid $75 million for a waterfront estate in Miami Beach, The Real Deal reported, citing sources. Maounis and his wife, Susan, acquired the 21,700-square-foot mansion at 88 La Gorce Circle, which Okto, owned by the Kollmans, a wealthy German family, sold. The estate has nine bedrooms, 12 full bathrooms, three half bathrooms, a guest house and staff quarters. It was built in 2008 by Todd Michael Glaser and includes a 'Guggenheim-inspired' staircase with a skylight, a pool, 260 feet of water frontage, two docks and a five-car garage, according to the listing. The property sits on one acre and was on the market for about two weeks before going into contract. Nelson Gonzalez of Berkshire Hathaway HomeServices EWM Realty represented the seller, and Ryan Mendell of Maxwelle Real Estate Group represented the buyer. Gonzalez declined to comment, and Mendell could not immediately be reached.

The sale is a record for completed homes on Miami Beach's La Gorce Island and one of the most expensive home sales in Miami-Dade County. The buyers plan to gut-renovate the property. Mendell wrote to TRD that the buyer is working with designers and architects to make the home 'even more spectacular than it already is.'

Maounis founded Amaranth Advisors, which collapsed in 2006 after losing more than $6 billion on natural gas futures, one of the largest hedge fund failures in history. He is now CEO of Verition Fund Management, one of the fastest-growing hedge funds, according to the Wall Street Journal's March reporting. Verition manages about $12.6 billion, up from roughly $1 billion in 2019. The couple also owns a waterfront estate on Pine Tree Drive in Miami Beach, which they bought from David and Leila Centner, owners of the Centner Academy, for $26 million in 2022.

The transaction is part of a run of high-value Miami Beach luxury sales. Earlier this year, billionaire developer Vlad Doronin sold his Star Island estate for $120 million, a new benchmark for single-family home sales in Miami-Dade. Sources say billionaire hedge fund manager Ken Griffin, not the named buyer Michael Ferro, is the real purchaser of that property. In March, developer James Curnin sold his 66 La Gorce Circle mansion for $60 million, and consumer goods multimillionaire Anand Khubani paid $100 million in September for three adjacent La Gorce Circle properties where he plans a large estate.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Therealdeal Buyer revealed: Hedge funder Nick Maounis pays $75M for Miami Beach estate, sources say