MIRIAM ADELSON
Majority owner of Las Vegas Sands, widow of Sheldon Adelson, the largest Republican megadonor in America, and owner of the Dallas Mavericks
Miriam Adelson is a trained physician who became one of the richest women on the planet and the single biggest Republican donor in America. She inherited control of Las Vegas Sands, a casino empire worth tens of billions, when her husband Sheldon died in 2021. Then she did something no casino mogul had done. She bought an NBA team, taking majority control of the Dallas Mavericks from Mark Cuban in 2023. She has poured hundreds of millions into Donald Trump and pro-Israel causes. A doctor who owns casinos, a basketball team, and a chunk of American politics.
Net Worth
$32.5 billion
Nationality
Israeli-American
Time Horizon
Generational
Risk Appetite
7 / 10
Net Worth Context
- · That's the GDP of a small country — around the size of Greenland.
- · Enough to buy an NBA team and keep $29B for snacks.
CAREER & BACKGROUND
Miriam Adelson was born in Tel Aviv in 1945 and trained as a doctor. She specialized in internal medicine and then in addiction.
That is not the usual resume for a casino billionaire. In 1991 she married Sheldon Adelson, the brash Las Vegas entrepreneur who built Las Vegas Sands into a global casino giant.
While Sheldon built casinos in Las Vegas, Macau, and Singapore, Miriam built addiction clinics and ran her medical research. When Sheldon died in January 2021, she inherited his controlling stake in Las Vegas Sands and his role as the family's political force.
She did not fade into the background. She got louder.
COMPANIES & ROLES
Her main asset is Las Vegas Sands, the casino company her husband founded. She is the majority shareholder.
Sands made its real fortune not in Las Vegas but in Asia, with massive resorts in Macau and the Marina Bay Sands in Singapore, the one with the giant boat-shaped pool on top of three towers. In 2021 the company actually sold its Las Vegas properties, including the Venetian, to focus on Asia.
In December 2023, Miriam and her family bought a majority stake in the Dallas Mavericks from Mark Cuban, valuing the team around $3.5 billion. She also owns Israel Hayom, a free daily newspaper that is the most read in Israel.
INVESTING STYLE & PHILOSOPHY
Adelson does not spread her money thin. She bets huge on a few things she controls completely.
The family fortune is overwhelmingly tied to one company, Las Vegas Sands, and one region, Asia. That is the opposite of a diversified portfolio.
It is a giant concentrated bet on the idea that people in Macau and Singapore will keep gambling. Her other big investment is political.
She treats donations like a long-term position, backing candidates and causes for decades and expecting policy results. Concentrate, control, and play a long game.
That is the whole approach.
THE PLAYBOOK
Risk Approach
The Adelson money is anything but cautiously spread out. Almost everything rides on casinos, an industry that lives and dies on regulation, tourism, and the mood in Beijing.
When COVID shut down Macau, Las Vegas Sands stock got hammered and Miriam even paused some philanthropy. She rode it out rather than bailing.
She is comfortable with the violent swings of the casino business because she believes in the long-term value of the properties. The risk she will not take is losing control.
The family keeps a firm grip on the company rather than diluting itself.
Money Habits
Despite a fortune north of $30 billion, Adelson's spending has a clear pattern. It flows to causes, not just toys.
She and Sheldon gave hundreds of millions to medical research, Jewish education, and addiction treatment. She funds the Adelson clinics for drug abuse in Las Vegas and Tel Aviv, named after her and Sheldon.
Then there is the political spending, which is staggering. The Adelsons were among the top donors of the 2016 and 2020 election cycles, giving well over $100 million in each.
Buying the Dallas Mavericks was her one truly flashy purchase, and even that came tied to a plan to build a casino resort in Texas.
BIGGEST WIN
Her biggest win was inheriting and holding Las Vegas Sands at the right moment. When Sheldon died in early 2021, the casino world was on its knees from COVID.
A lot of people would have sold into the panic. Instead the company sold its Las Vegas assets, doubled down on Asia, and waited.
As travel recovered in Macau and Singapore, the business roared back. Her stake is worth tens of billions.
Holding a battered casino empire through its worst year and watching it recover is a quiet, enormous win.
BIGGEST MISTAKE
The clearest stumble is the COVID-era pullback in giving. As Las Vegas Sands took a beating in 2020 and 2021, the family foundation cut its philanthropic spending sharply, even as Adelson's personal fortune stayed in the tens of billions.
For someone whose public identity is built on generosity and medical causes, slashing donations during a pandemic was a bad look and drew criticism. The lesson is that when your brand is philanthropy, the timing of your giving matters as much as the amount.
Critics noticed.
FINANCIAL PHILOSOPHY
Adelson's philosophy blends money and mission. She does not separate her wealth from her causes.
Her view is that a fortune is a tool to advance things she believes in, mainly Israel, conservative politics, and the fight against drug addiction. On the business side, the family belief is control above all.
Own enough of the company to call the shots and never let go. On the political side, she plays the longest game in the donor world, funding a cause for decades rather than chasing a single election.
As she put it about her addiction work, drug dependency is enslavement, and treatment is emancipation.
FAMILY & PERSONAL LIFE
Miriam married Sheldon Adelson in 1991, a second marriage for both of them. Together they became a political and philanthropic power couple.
She has daughters from her first marriage, and Sheldon had children from his. The blended family shares the foundation work and now the businesses, including the Dallas Mavericks.
Sheldon died in January 2021 at 87. Miriam, a doctor by training, has kept the family's name in the headlines through politics, basketball, and giving.
The Adelsons split their life between Las Vegas and Israel.
EDUCATION
Adelson earned her medical training in Israel. She studied microbiology and genetics at the Hebrew University of Jerusalem, then earned her medical degree from Tel Aviv University's Sackler School of Medicine.
She worked as a physician and an addiction specialist before her life turned toward casinos and politics. The medical background is the key to understanding her.
She funds addiction science because she practiced it.
BOOKS & RESOURCES
Adelson is not an author and does not hand out reading lists, so any recommendation here is from Netfigo, not from her.
A sweeping history of gambling that explains the business her fortune sits on
A landmark book on addiction by a doctor, which mirrors the world she spent decades treating as a physician. Together they cover both halves of her life. The money and the mission
As an Amazon Associate, Netfigo earns from qualifying purchases. Book links above may be affiliate links.
QUOTES (5)
I am deeply humbled and moved by this exceptional honor.
Trump represents kinship, friendship, courage, the triumph of truth.
Liberty is at the heart of my decades of work against substance abuse. Drug dependency is enslavement, for the user and his or her family and society, and treatment an emancipation.
NETFIGO SCORE
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