Encyclopedia · Biography
Miriam Adelson
Israeli-American physician, Las Vegas Sands controlling shareholder, media proprietor, philanthropist and major Republican political donor.
Personal details
- Full name
- Miriam Ochs(h)orn Adelson, née Farbstein (public professional name Miriam Adelson)
- Born
- October 10, 1945 · Tel Aviv, Mandatory Palestine
- Education
- Hebrew University of Jerusalem; Tel Aviv University medical school
- Spouses
- Ariel Ochshorn (divorced); Sheldon Adelson (married 1991; died 2021)
- Children
- Four across the marriages
- Specialty
- Internal medicine, addiction medicine and medical research
- Ownership
- Las Vegas Sands: 341,442,911 beneficial shares, 51.4% as of March 16, 2026
- Sports
- Controlling investor group for Dallas Mavericks NBA team
- Media
- Adelson family owns or controls Israel Hayom and Las Vegas Review-Journal
- Political giving
- May 5, 2026 $25 million MAGA Inc. reported FEC contribution; additional 2026 super PAC donations
Early life, medical education and family
Miriam Adelson was born Miriam Farbstein in Tel Aviv in 1945, attended Hebrew University and earned a medical degree from Tel Aviv University. She practiced and researched internal medicine and addiction treatment, especially approaches to substance-use disorders. Her clinical and medical philanthropy preceded her prominent U.S. donor role. [1]
She was previously married to Ariel Ochshorn and in 1991 married casino entrepreneur Sheldon G. Adelson, whose death in January 2021 left his business and philanthropic interests under trust and family ownership structures. Family details and trust beneficial interests are distinct from board membership or individual stock holdings. [1]
Las Vegas Sands share ownership and corporate governance
The Adelson family owns a controlling stake in Las Vegas Sands Corp., which operates integrated gaming and convention resorts in Macau and Singapore. The company's April 2026 SEC proxy lists 341,442,911 shares—51.4% of outstanding stock—as beneficially owned by Miriam Adelson as of March 16, 2026, while family members as a group beneficially held approximately 58.2%. These ownership categories can overlap via trusts and should not be added as if wholly independent shares. [2]
The corporation's 2026 businesses and management are separate from Miriam Adelson's Republican donations. A controlling shareholder can influence board matters but does not automatically manage each property or receive the entire company's revenues as personal income. [2]
Dallas Mavericks, news publishing and family institutions
The Adelson family became controlling investors in the NBA's Dallas Mavericks, and the family's holdings extend to Israel Hayom, the Las Vegas Review-Journal and aviation-interior company Citadel Completions. UNLV's 2026 Business Hall of Fame biography states that the family also holds controlling news and sports interests, separately from the casino company. [1]
Adelson family charitable institutions have supported medical research, addiction-treatment clinics, Jewish education and Israel-focused philanthropic projects. Media ownership, nonprofit grants and personal political spending should be traced to their respective companies and foundations. [1]
Trump campaigns and FEC-documented 2025–2026 donations
Adelson and Sheldon Adelson supported Republican candidates and Trump presidential campaigns through large political contributions and super PACs. Her disclosed activities include support for U.S.–Israel relations and the Republican coalition. Trump's public stances on Israel and donors' positions are separately observable; they do not establish that a donation purchased a particular government order. [3]
For the 2025–2026 cycle, FEC-derived filings identify a $25 million contribution to MAGA Inc. on May 5, 2026, $30 million to Senate Leadership Fund on March 11 and $10 million to Congressional Leadership Fund. The Washington Post's June 2026 compilation identified roughly $67.6 million in large contributions; later data and scope may differ. Gifts to super PACs are independent-expenditure committee funding, not donations made directly to Trump as an individual. [3] [4]
Political connections and limits
Direct documented links are Donald Trump (public endorsements and outside political donations), Las Vegas Sands (shareholder), the Dallas Mavericks (ownership), Republican outside expenditure committees (FEC donor records), and media and philanthropic institutions. [1] [2]
The documented overlap between money, publishing and political advocacy belongs in the Encyclopedia, but a donor's political preferences are not themselves evidence of unlawful influence or a private arrangement with every politician backed by the same committee. See The Story for the chronological background.
Separate 2026 contributions and beneficial corporate ownership
FEC-derived transaction records identify a $25 million May 5, 2026 contribution to MAGA Inc. by Miriam O. Adelson. Another data compilation identifies $30 million to Senate Leadership Fund and $10 million to Congressional Leadership Fund, both dated March 11, 2026. These transactions are contributions to three distinct outside-spending committees, not direct payments to Trump's personal finances or the candidate's authorized committee. [5]
Her Las Vegas Sands beneficial share ownership—341,442,911 shares, or 51.4%, as of March 16, 2026—is recorded in the issuer's SEC proxy. The shareholder stake is a specific corporate-control record; its market valuation changes with share price and is not an exact personal cash balance. [2]
Different databases may count memo entries, refunds or committee types differently. Their reported donor totals should not be added together without reconciling original FEC filings. [6]
Where this subject appears in The Story
References
- UNLV Lee Business School 2026 Miriam Adelson medical, shareholder, media and sports biography
- Las Vegas Sands SEC April 2026 proxy beneficial ownership figures
- FEC-derived dated individual contributions to MAGA Inc and other 2026 committees
- Washington Post June 2026 top political donors and allocations
- FundVoter 2026 FEC-derived Miriam Adelson contributions and dates
- FEC-derived donor transaction listing as of Nov 12 2026
Research updated November 13, 2026. The biography distinguishes dates, fees, campaign contributions, and institutional roles from allegations.