Luxury Yachts

Yacht Owners Database | Biggest Yachts | Richest Owners | About | News

The SuperYacht Owners Database

Download More than 1,000 Yachts and Yacht Owners in a searchable Excel file.

More info here.

yacht owners - 2019

Luxury Yacht Charter | Charter Broker

A luxury yacht charter offers all the benefits and facilities of a yacht, without the hassles of ownership.

Experience ultimate luxury and absolute freedom.

Yacht Charter

Material may not be published, broadcast, rewritten or redistributed without a link to the original content.


The details about yacht ownership as stated on this site and in our Yacht Owners Register are mostly based on rumors. In almost no case actual yacht ownership by the private individuals mentioned can be confirmed from a legal point of view. This site is for entertainment purposes only.

Legal Notice

The content of this website and all associated program code are protected under the Digital Millennium Copyright Act.

More about our Privacy Policy here.

Author| Celebs on Yachts | Yacht Charter | Engines | Resources | Insurance

Buy Now

See the World’s Biggest Yachts

Learn all You Need to Know about the world’s largest yachts. Azzam is the longest, Dilbar is the biggest, Eclipse is reportedly the most expensive.

Biggest Yachts

All You Need to Know About Robert Mercer, his Net Worth, his House and his Sea Owl Yacht

Yacht Specifications

Yacht Name:

Sea Owl

Yacht Length:

62 m (203 ft)


12 in 6 cabins


18 in 9 cabins




Andrew Winch Designs




16 knots


MTU 16V4000


1,494 ton




US$ 75 million

Yacht For Sale:

Contact a Sales Broker

Yacht Charter:

Contact a Charter Broker

Who is the Owner of the Yacht Sea Owl?


Robert Mercer



Net Worth:

US$ 500 million


Renaissance Technologies


July 11, 1946


Diana Lynne


Rebekah Mercer, Jennifer Mercer, Heather Sue


Long Island, New York

Private Jet:

Gulfstream. Pls send a message if you have information.

Our Super Yacht Owners Database: more than 1,000 Yachts and Yacht Owners.

Mercer owns a large house on Long Island, NY, named Owl’s Nest.

Who Robert Mercer?Robert Mercer

He is co-CEO of the hedge fund Renaissance Technologies. The fund was founded by James Simons. He was born in July 1946. He is married to Diana Lynne Dean and they have three daughters: Jennifer, Rebekah and Heather Sue.

James Simons is the owner of the yacht Archimedes.

What is Renaissance Technologies?

Renaissance Technologies is one of the largest quant funds. It use mathematical algorithms and computers to identify trades. Renaissance employs dozens of math and physics doctorate-holders with knowledge of artificial intelligence.

In 2015 the fund had US$ 65 billion in assets and 290 employees.

How Much Does he Earn per Year?

According to Forbes, Mercer earned US$ 125 million in 2016. He earned  US$ 150 million in 2015 and US$ 115 million in 2013. And he earned US$ 90 million in 2012 and US$ 125 million in 2011.

He is one of the highest earning hedge fund managers. Mercer’s career started at IBM. He was working on a speech recognition program. In 1993 he joined Renaissance Technologies. When James Simons retired, Mercer took over as CEO.

What are his Political Donations?

Mercer was "the biggest single donor" in the 2016 U.S. presidential race. He donated US$ 14 million to the 2016 presidential campaign of Ted Cruz. And he supported Trump super pac committees.

In total Mercer has donate d more than US$ 35 million to political campaigns. Including the Trump campaign.

Mercer is also a major source of funds of Steve Bannon ’s Breitbart News. Which he gave more than US$ 10 million according to the Wall Street Journal.

What is Robert Mercer Net Worth?

He has a net worth of more than US$ 500 million. In this article on Bloomberg his net worth is estimated to be near US$ 1 billion.

What Does He Donate to Philanthropy?

He is an active philanthropist. He donated US$ 13.5 million in 2013 through his Mercer Family Foundation. The foundation is run by his daughter Rebekah Mercer. The foundation has US$ 37 million in assets.

The foundation has been giving donations to the National Youth Science Fund. And to the World Science Festival,  the Oregon Institute of Science and Medicine (OISM). And also to the Museum of Natural History in Manhattan, and the Home Depot Foundation.

What About His Machine Gun Collection?

Mercer has a large and rare collection of machine guns and historical firearms. He owns a weapon which Arnold Schwarzenegger used in The Terminator.

Who is Rebekah Mercer?Robert and his daughter Rebekah Mercer

Rebekah Mercer directs the Mercer Family Foundation. She served on the Executive Committee of the transition team of United States President-elect Donald Trump.

She was running Make America Number 1, a pro-Trump super PAC.

Rebekah is married to Sylvain Mirochnikoff. They have four children. Mirochnikoff, a native of France, was a managing director at Morgan Stanley. We estimate the net worth of Rebekah Mercer at US$ 50 million.

Since 2018 Mercer and his daughter Rebekah scaled down support for the GOP and the White House.  He’s no longer playing as big a role in supporting the Republican Party as he used to.

In 2016 he was one of the top 10 political donors, by giving just over $25 million to conser vative causes. But he has not donated any funds in 2018. And he sold his stake in Breitbart News, the conservative online news platform.

Where is Mercer Residence?

Robert and his wife Diana Mercer own a large house in Head of the Harbour, Long Island, New York. The house is named Owl’s Nest. It has an estimated value of more than US$ 18 million.

Does He Own a Private Jet?

We think he also owns a private jet. But we have not yet been able to identify the registration number. Do you know more about a jet owned by Mercer? Please do send us a message.

Message to Other Media

Please mention and link to this page, when using this information. Thanks!

Tweet this!

Sea Owl Yacht

The yacht is a 62 meter displacement yacht, built at Feadship. She has a steel hull and an aluminum superstructure. The yacht was delivered in 2013 to her owner by Royal Van Lent.

The yacht is powered by 2 MTU diesel engines. Which bring her a top speed of 16 knots. Her cruise speed is 14 knots. We estimate her range at more than 5,000 nm.

Who Designed the Yacht?

Both her ext erior lines and her interior design is done by Andrew Winch Designs. Sea Owl features a jade mist green and oyster white color scheme. It is the same color scheme as the owners’ previous superyacht.

Tell Me About the Yacht’s Interior.

Besides the owners stateroom, the yacht has 3 guest cabins, two kid’s cabins and a nanny cabin. There is even a herb garden.

The luxury yacht has a crew of 18. The owners’ previous yacht was a 43 meter Burger, with the same name. All photos on this page are made by Tom ‘McNikon’ Gulbrandsen.

Is She Available for Yacht Charter?

The boat is not available for yacht charter. And she is not listed for sale.

Is he Building a New Yacht?

We think Robert Leroy Mercer is building a new yacht at Feadship.

Does he Own Another Yacht?

Mercer still owns his previous yacht, a Burger Yacht built in 2010. She is now named Shadowl.

Shadowl is powered by Caterpillar engines, which bring her a top speed of 14 knots. Her design is by Andrew Winch.

She has a similar styling and logo / name plate as Sea Owl.

Our yacht owners database has more info about yachts, the value of yachts, yacht owners, their source of wealth and net worth.

Scroll all the way down for more amazing content!

10 Facts about Robert Mercer you probably didn’t know

  1. He started his career as a computer scientist, working at IBM.
  2. In 1993 he was recruited at Renaissance Technologies. Later he was CEO.
  3. RenTech uses mathematical algorithms to identify trades.
  4. He is one of the Highest Earning Hedge Fund Managers.
  5. He donated millions of dollars to political campaigns.
  6. His net worth is estimated between US$ 500 million and US$ 1 billion.
  7. He lives in a large house named Owl’s Nest.
  8. He has owned several large yachts all named Sea Owl.
  9. He has a large collection of rare fire arms and machine guns.
  10. His daughter Rebekah Mercer runs the Mercer Family Foundation.
yacht Sea Owl


yacht Sea OwlRobert Mercer yachtSea Owl Royal van Lentsea owl yachtRobert Mercer's yacht

He is CEO of  the hedge-fund Renaissance Technologies.

Nice photo of the yacht.

Luxury yacht Sea Owl in Norway.

She was built by Royal Van Lent (Feadship).

Her owner is one of the highest earning hedge-fund managers.

Sea Owl yacht Robert Mercer

The yacht is designed by Andrew Winch Designs.

Next yacht:


Previous yacht:


Follow the location of the yacht live!

Robert Mercer houseRobert Mercer Long Island

The House Owl’s Nest.

Owl’s Nest - Long Island.

sea owl at night

Robert Leroy Mercer House

Search the SuperYachtFan site for owners or yachts

Inside the Yacht

yacht sea owl interiorinterior yacht sea owlherb garden yacht sea owlinside robert mercer yacht
SuperYacht | Fan

The Superyacht Owners Register, yacht names: #1 to B

The Superyacht Owners Register, yacht names: C to H

The Superyacht Owners Register, yacht names: I to L

The Superyacht Owners Register, yacht names: M to P

The Superyacht Owners Register, yacht names: Q to S

The Superyacht Owners Register, yacht names: T to Z

yacht shadowl

The Burger Yacht Shadowl (photo by Jelpics).

Watch This Amazing Video!

Robert Mercer CEO of the hedge fund Renaissance Technologies July 11, 1946 Renaissance Technologies Mercer Family Foundation Diana Mercer Rebekah Mercer US$ 1 billion
Owl’s Nest, Long Island, NY
yacht Sea Owl Built at Feadship, value US$ 75 million
Yacht Shadowl Burger Yachts Shadowl (2010)