Sam Altman

Male

White

Coarse public-record coding; race is a noisy, interpretive category.

Ashkenazi Jewish

Wikipedia describes the family as Jewish American; his paternal great-grandfather was born in Płock, Poland. Denomination and depth of practice not established.

Multi-generation American

Great-grandfather emigrated from Poland; parents were both US-born. Coded as domestic (none/internal), not immigrant-descended in the near-term sense the migration field is built to capture.

Jewish

Two professional parents, a dermatologist and a real estate broker, in an affluent St. Louis suburb, throughout childhood and beyond. A real cushion at every point in his twenties.

No documented period without one. Loopt was outside-funded from close to the start, and he had no dependents and an affluent family behind him while building it.

0

No children until 2025, well after the ventures that built his wealth.

No money was owed or sent outward during the build.

not established

No student or other debt reported at any point; not directly confirmed either way.

not established

No housing or income instability documented at any stage.

not established

No austerity narrative, chosen or otherwise, appears in the record.

Mother Connie Gibstine, a dermatologist. Father Jerry Altman, a real estate broker.

A parent worked for themselves, the strongest known predictor of founding.

A real estate broker is often self-employed or commission-based; not independently confirmed for his father specifically.

3

Eldest of four children — two brothers, Max and Jack, and a sister, Ann.

1

Attended John Burroughs School, a private college-prep school in Ladue, Missouri, with no indication tuition strained the household.

Clayton, Missouri — an affluent inner-ring St. Louis suburb.

John Burroughs School, a selective private college-preparatory school in Ladue, Missouri.

Family moved from Chicago to Clayton, Missouri in 1989, his father's hometown, when Altman was four. Moved to Stanford, California for college in 2003, then stayed in the Bay Area.

Paul Graham, Y Combinator's co-founder, became his mentor after Loopt went through YC's first-ever batch in 2005, and later handed him the presidency of the firm.

Loopt was part of Y Combinator's inaugural Summer 2005 batch, putting him inside Silicon Valley's seed-stage network from his first venture rather than approaching it cold.

19

Paul Graham mentored him from Loopt onward and, in February 2014, installed him as Y Combinator's president in his own place — a senior figure spending real institutional capital on him, not just advice.

Mentored and financially backed by Peter Thiel from early in his career; attended Bilderberg meetings in 2016, 2022, and 2023; met his future husband at Thiel's house.

2

Loopt (founder) and OpenAI (co-founder/CEO) are the two ventures he ran; Y Combinator and Hydrazine Capital are his own firms, not employers in the ordinary sense.

Given a personal computer (an Apple Macintosh) at age eight in the early 1990s and taught himself to program and take hardware apart — an early, sustained exposure well ahead of typical access at the time.

No degree. Studied computer science at Stanford University for two years, 2003–2005, then dropped out to found Loopt.

not established

No student debt reported; his family's income makes needing loans unlikely, though it isn't directly confirmed either way.

Direct — accepted to Stanford out of a private college-prep high school.

Stanford's computer-science cohort and its pipeline into Silicon Valley venture capital, even for a two-year non-graduate, put him inside the network that later funded Loopt.

A $5 million investment from Patrick Chung, then at Xfund/New Enterprise Associates, anchored Loopt's first round in 2005.

It needed capital up front, before it earned anything.

Loopt raised venture capital from close to the start rather than launching on its own revenue.

More than $30 million raised for Loopt: the initial $5 million from Patrick Chung's team, followed by Sequoia Capital and Y Combinator.

Peter Thiel supplied most of the $21 million that started Hydrazine Capital in 2012 and has functioned as an ongoing mentor and social backer, not a passive check.

Hydrazine Capital, co-founded with his brother Jack in April 2012 on an initial $21 million, 75% of it deployed into Y Combinator companies. Its fourth fund, raised in 2023, took a $75 million check from the University of Michigan endowment as its only outside investor — the largest single investment that endowment had made. This fund, not any company he personally owns, is the actual source of most of his fortune.

Rather than spending or banking the Loopt sale proceeds, he put a portion into starting Hydrazine Capital a month after the deal closed, turning a modest exit into the seed of a much larger structure.

He has said repeatedly and under Senate testimony that he holds no equity in OpenAI, the company he runs, which reached a valuation near $500 billion. In a December 2024 interview he acknowledged a small indirect stake through a Sequoia venture fund, since sold; OpenAI described the stake as under a fraction of a percent of the company. His actual influence over OpenAI comes from the CEO role and board relationships rather than an ownership position.

4

Board or chair-level stakes taken across unrelated fields on the strength of his OpenAI profile — Helion Energy (fusion), Retro Biosciences (longevity), Oklo (nuclear fission, until stepping down as chairman in 2025 to avoid a conflict with OpenAI), and Tools for Humanity/Worldcoin (crypto/biometrics) — separate from his broader 400-plus-company investment portfolio.

34

Age when he left Y Combinator in March 2019 to become OpenAI's CEO full time.

Built Hydrazine and his investment portfolio through the 2010s venture boom and the post-2022 AI funding surge that followed ChatGPT, which he was also positioned to benefit from directly as OpenAI's CEO.

San Francisco Bay Area, already resident since 2003.

27

Hydrazine Capital founded April 2012; born April 1985.

14

2012 (Hydrazine founded) to 2026, uninterrupted.

Artificial intelligence and venture investing

3300000000

Forbes real-time estimate, August 2026, built almost entirely from his investment portfolio (Helion, Retro Biosciences, Reddit, Stripe, and others) rather than OpenAI equity. Forbes states this explicitly. The figure has moved fast — Bloomberg put him at roughly $2 billion in March 2024 — so treat it as a band, not a fixed number.

Journalistic estimate

2026

Mostly paper. Reddit's 2024 IPO realized some value from a long-held stake; Helion, Retro Biosciences, and most of Hydrazine's portfolio remain illiquid private holdings.

Wealth, and almost entirely from a portfolio rather than from owning the company he leads. The asset base is Hydrazine Capital's holdings and his personal stakes in Reddit, Stripe, Airbnb, Helion, and Retro Biosciences — not equity in OpenAI, which he has said repeatedly he does not hold in any meaningful amount.

CEO of OpenAI, one of the most consequential companies of the AI era; named to Time's 100 most influential people in 2023; a recurring presence at Bilderberg and in meetings with heads of state.

Uncapped

Worldcoin (Tools for Humanity, which he co-founded in 2019) has been investigated or had its eye-scanning operations suspended by regulators in Kenya, France, the UK, Bavaria, South Korea, Spain, Portugal, and Hong Kong over biometric data-privacy concerns. It has never operated in the United States.

After years of public statements, including 2023 Senate testimony, that he held no OpenAI equity, he acknowledged in a December 2024 interview holding a small indirect stake through a Sequoia fund, which he said he has since sold. OpenAI's own characterization was that the stake was under a fraction of a percent of the company.

During

Incidental

His role and reputation, not the equity-disclosure inconsistency itself, are what produced his wealth and influence.

None

Visionary, Persuasive, not consistently candid (per OpenAI's board, November 2023)

Insiders

4

OpenAI's own board (November 2023 statement), Helen Toner's May 2024 account, reporting drawing on named OpenAI and Loopt sources, and a book-length account (Keach Hagey's "The Optimist," 2025).

Before

His reputation as a sharp, connected operator predates the 2023 board crisis by close to two decades.

Mixed

OpenAI's own board removed him citing a lack of candor, and a former board member has since described specific instances she says the board relied on. The general public and most of the AI industry continued to treat him as the field's leading figure throughout, and still do.

Reinstated as CEO four days after his November 2023 removal, following an employee revolt and investor pressure. OpenAI's valuation and his own net worth have both grown substantially since.