Stephen Mandel, Jr.

One of Julian Robertson's "Tiger Cubs," Stephen Mandel started his hedge fund firm, Lone Pine Capital, in 1997.
Mandel stepped back from managing investments for Lone Pine Capital in January 2019 but remains a managing director.
Mandel built up a reputation as one of the hedge fund industry's best when it comes to fundamental analysis and bottom-up stock picking.
Mandel has poured hundreds of millions into his Zoom Foundation. The hedge fund also has its Lone Pine Foundation.
He is a big donor to charter schools and sits on the national board of directors of Teach for America.

Wealth History

HOVER TO REVEAL NET WORTH BY YEAR

Forbes Lists

list appearances

Personal Stats

Age: 70

Source of Wealth: Hedge funds, Self Made

Self-Made Score: 7

Philanthropy Score: 2

Residence: Greenwich, Connecticut

Citizenship: United States

Marital Status: Married

Children: 3

Education: Bachelor of Arts/Science, Dartmouth College; Diploma, Phillips Academy Exeter; Master of Business Administration, Harvard University

Did you know

Mandel donates to the Environmental Defense Fund, of which he is a board trustee.

Mandel named Lone Pine Capital after a pine tree that, legend has it, survived a lightning strike on the campus of Dartmouth College in 1887.

In Their Own Words

If you can manage a classroom and inspire kids, it's going to be a hard thing for you to do, but it's just unbelievable preparation for anything you're going to do in life.
Stephen Mandel, Jr.

Related People & Companies

Daniel Hochman

Related by education: Dartmouth College

Attended the school

Related by origin of wealth: Hedge funds

View Profile

Greg Jensen

Related by education: Dartmouth College

Attended the school

Related by education: Dartmouth College

View Profile

Jeff Butler

Related by education: Dartmouth College

View Profile

Ken Griffin

Related by origin of wealth: Hedge funds

View Profile

Marilyn Simons & family

Related by origin of wealth: Hedge funds

View Profile

Steve Cohen

Related by origin of wealth: Hedge funds

View Profile

Terry McGuire

Related by education: Dartmouth College

View Profile

50 minutes ago

Advances In The AI-Mind-Body Psychophysiological Connection Require These Vital Research Pursuits

New focus is the AI-mind-body connection, beyond AI-mind and mind-body studies. Research pursuits for AI-mind-body are laid out. An AI Insider analysis and scoop.

3 hours ago

Viola Davis Talks About Getting Shingles Not Once, But Twice

Viola Davis opens up about how she got shingles and then a recurrence and how her experience with the varicella zoster virus changed her view of strength and her body.

6 hours ago

Rock Song Copyright Dispute Rocks The Entertainment Industry

7 hours ago

How Adele Lim Is The Heart Of 'Crazy Rich Asians' And Its Return

'Crazy Rich Asians' screenwriter Adele Lim returns to the anticipated project - now an HBO Max TV series - as showrunner, EP, and writer — where she belongs.

7 hours ago

Hexagon Is Putting 1,000 Humanoid Robots In Schaeffler Factories. This Is Not A Copy-Paste Process

1 robot is a pilot. 1,000 is a revolution. But how do you scale? We chat with Hexagon Robotics president Arnaud Robert on the path.

7 hours ago

US Force Donated An F-117 Nighthawk Stealth Fighter To The Smithsonian

One of the original stealth fighters will soon go on display at the National Air and Space Museum’s Steven F. Udvar-Hazy Center in Chantilly, Va.

7 hours ago

Here Is Who’s Submitting What For 2027 Grammy Nominations (Updating)

The Grammys first-round voting runs Oct 12–22. Here's who submitted for the 2027 Grammy Awards including Taylor Swift, Cardi B, Olivia Rodrigo, Trevor Noah and more.

8 hours ago

Here’s Why Tyler Adams Is The Perfect Choice As USMNT Captain

Tyler Adams, who captained the USMNT at the 2022 World Cup, was selected by head coach Mauricio Pochettino to skipper the team as it starts preparations to qualify for the 2030 World Cup.

8 hours ago

Today’s Wordle #1939: Hints, Clues And Answer For Saturday October 10

Looking for help with today's New York Times Wordle? Here are some expert hints, clues and commentary to help you solve today's Wordle and sharpen your guessing game.

8 hours ago

In The Age Of AI Itineraries, Interrail Retires Eurail And Sells The Unplanned

Eurail is now Interrail. As AI optimizes travel itineraries, the European rail brand is betting on getting lost.

9 hours ago

Intel Stock Has Made A Strong Comeback. Here’s How To Play It

Intel stock has experienced volatility despite surging AI compute demand and investors must decide whether to ride the momentum, lock in profits or stay put. See which strategy to choose.

9 hours ago

Income Tax Identity Theft Victims Face Long Refund Delays

Income tax identity theft remains a serious threat. Learn how tax refund fraud works, why victims wait years for refunds, and how an IRS PIN can help protect you.

10 hours ago

How To Legally Pay Less In Tariffs Without Moving Your Factory

Tariffs have nearly tripled since 2025. Tariff engineering lets brands legally pay less by changing the product. Here’s how it works and who it’s worth it for.

10 hours ago

What To Know About Turkish Businessman Turhan Mildon—Trump Attorney Alina Habba’s New Husband

Mildon wed Habba, a longtime Trump ally, at a September ceremony in New York City.

10 hours ago

What To Watch This Weekend: New Shows And Movies To Stream On Netflix, Hulu, Prime Video, Apple TV And More

Looking for something new to stream this weekend? Here’s every major new movie and show hitting Netflix, Hulu, Prime Video, Apple TV and more.

10 hours ago

Troye Sivan, Jadakiss And Hasan Minhaj Lead This Week’s Smartest Music Marketing Moves

This week was full of crowded release calendars require campaigns that give fans a role to play.

Last Updated Sep 15, 2026, 6:30am EDT

Forbes Lists

Personal Stats

More on Forbes

Advances In The AI-Mind-Body Psychophysiological Connection Require These Vital Research Pursuits

Viola Davis Talks About Getting Shingles Not Once, But Twice

Rock Song Copyright Dispute Rocks The Entertainment Industry

How Adele Lim Is The Heart Of 'Crazy Rich Asians' And Its Return

Hexagon Is Putting 1,000 Humanoid Robots In Schaeffler Factories. This Is Not A Copy-Paste Process

US Force Donated An F-117 Nighthawk Stealth Fighter To The Smithsonian

Here Is Who’s Submitting What For 2027 Grammy Nominations (Updating)

Here’s Why Tyler Adams Is The Perfect Choice As USMNT Captain

Today’s Wordle #1939: Hints, Clues And Answer For Saturday October 10

In The Age Of AI Itineraries, Interrail Retires Eurail And Sells The Unplanned

Intel Stock Has Made A Strong Comeback. Here’s How To Play It

Income Tax Identity Theft Victims Face Long Refund Delays

How To Legally Pay Less In Tariffs Without Moving Your Factory

What To Know About Turkish Businessman Turhan Mildon—Trump Attorney Alina Habba’s New Husband

What To Watch This Weekend: New Shows And Movies To Stream On Netflix, Hulu, Prime Video, Apple TV And More

Troye Sivan, Jadakiss And Hasan Minhaj Lead This Week’s Smartest Music Marketing Moves

also on forbes

Advances In The AI-Mind-Body Psychophysiological Connection Require These Vital Research Pursuits

Viola Davis Talks About Getting Shingles Not Once, But Twice

Rock Song Copyright Dispute Rocks The Entertainment Industry

Stephen Mandel, Jr.

Real Time Net Worth

Last Updated Sep 15, 2026, 6:30am EDT

Forbes Lists

Personal Stats

More on Forbes

Advances In The AI-Mind-Body Psychophysiological Connection Require These Vital Research Pursuits

Viola Davis Talks About Getting Shingles Not Once, But Twice

Rock Song Copyright Dispute Rocks The Entertainment Industry

How Adele Lim Is The Heart Of 'Crazy Rich Asians' And Its Return

Hexagon Is Putting 1,000 Humanoid Robots In Schaeffler Factories. This Is Not A Copy-Paste Process

US Force Donated An F-117 Nighthawk Stealth Fighter To The Smithsonian

Here Is Who’s Submitting What For 2027 Grammy Nominations (Updating)

Here’s Why Tyler Adams Is The Perfect Choice As USMNT Captain

Today’s Wordle #1939: Hints, Clues And Answer For Saturday October 10

In The Age Of AI Itineraries, Interrail Retires Eurail And Sells The Unplanned

Intel Stock Has Made A Strong Comeback. Here’s How To Play It

Income Tax Identity Theft Victims Face Long Refund Delays

How To Legally Pay Less In Tariffs Without Moving Your Factory

What To Know About Turkish Businessman Turhan Mildon—Trump Attorney Alina Habba’s New Husband

What To Watch This Weekend: New Shows And Movies To Stream On Netflix, Hulu, Prime Video, Apple TV And More

Troye Sivan, Jadakiss And Hasan Minhaj Lead This Week’s Smartest Music Marketing Moves

also on forbes

Advances In The AI-Mind-Body Psychophysiological Connection Require These Vital Research Pursuits

Viola Davis Talks About Getting Shingles Not Once, But Twice

Rock Song Copyright Dispute Rocks The Entertainment Industry