Stephen Frank Mandel Jr. (born March 12, 1956) is an American hedge fund manager, investor, and philanthropist. He founded

Lone Pine Capital Lone Pine Capital is an American-based hedge fund and investment advisor headquartered in Greenwich, Connecticut, established in 1997 by its president and portfolio manager, Stephen Mandel. The firm has offices in London, New York City, and San F ...

in 1997, after working as the managing director at

Tiger Management Tiger Management Corp., also known as "The Tiger Fund", is an American hedge fund and family office founded by Julian Robertson. The fund began investing in 1980 and closed in March 2000/01. It continues to operate today in direct public equit ...

. According to ''

Forbes ''Forbes'' () is an American business magazine owned by Integrated Whale Media Investments and the Forbes family. Published eight times a year, it features articles on finance, industry, investing, and marketing topics. ''Forbes'' also r ...

'', Mandel has an estimated net worth of US$3.9 billion as of August 2022.

Early life and education

Mandel is the son of Ann (née Safford) and Stephen Frank Mandel and grew up in

Darien, Connecticut Darien ( ) is a coastal town in Fairfield County, Connecticut, United States. With a population of 21,499 and a land area of just under 13 square miles, it is the smallest town on Connecticut's Gold Coast. It has the youngest population of any ...

. He has a brother, Edward Safford Mandel. In 1974, Mandel graduated from the Phillips Exeter Academy. In 1978, he graduated from

Dartmouth College Dartmouth College (; ) is a private research university in Hanover, New Hampshire. Established in 1769 by Eleazar Wheelock, it is one of the nine colonial colleges chartered before the American Revolution. Although founded to educate Native ...

with a Bachelor of Arts in government and was a member of the

Psi Upsilon Psi Upsilon (), commonly known as Psi U, is a North American fraternity,''Psi Upsilon Tablet'' founded at Union College on November 24, 1833. The fraternity reports 50 chapters at colleges and universities throughout North America, some of which ...

fraternity. He also has an M.B.A. from

Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of high ...

.Forbes: The World's Billionaires: Stephen Mandel Jr.
March 2013

Investment career

From 1982 to 1984, he worked at Mars & Co as a senior consultant and then from 1984 to 1990, he worked as a consumer-retail analyst at Goldman Sachs before working as a consumer analyst and eventually managing director at

, a hedge fund founded by

Julian Robertson Julian Hart Robertson Jr. (June 25, 1932 – August 23, 2022) was an American billionaire hedge fund manager, and philanthropist. Robertson founded Tiger Management, one of the first hedge funds, in 1980. From its inception in 1980 to its 1 ...

. In 1997, he left Tiger and founded his own hedge fund, Lone Pine Capital LLC (named after a Dartmouth College pine tree that survived an 1887 lightning strike).Forbes: The World's Billionaires - Stephen Mandel Jr
March 2008 ''Forbes'' listed Stephen Mandel as one of the 40 Highest-Earning hedge fund managers in 2012, one of the top 25 in 2013, and one of the top 15 in 2018. As of January 2019, Mandel will no longer manage investments for his Lone Pine Capital but will remain a managing director.

Wealth and philanthropy

According to ''

Forbes Magazine ''Forbes'' () is an American business magazine owned by Integrated Whale Media Investments and the Forbes family. Published eight times a year, it features articles on finance, industry, investing, and marketing topics. ''Forbes'' also rep ...

'', Mandel has a net worth of $3.9 billion as of October 2021. An increase of $1.1B, when compared to the Forbes 400 List, released October 2020 He was chairman of Dartmouth's board of trustees and is currently chair of the national board of directors at Teach for America. He founded two charitable foundations: the Zoom Foundation and the Lone Pine Foundation. Mendel donated $1 million to the Lincoln Project, an anti-Donald Trump super PAC.

Personal life

In 1982, he married Susan Joy Zadek of Baltimore, whom he met at Harvard. They have three children. His wife is a trustee of the

Environmental Defense Fund Environmental Defense Fund or EDF (formerly known as Environmental Defense) is a United States-based nonprofit environmental advocacy group. The group is known for its work on issues including global warming, ecosystem restoration, oceans, and hu ...

and of

Vassar College Vassar College ( ) is a private liberal arts college in Poughkeepsie, New York, United States. Founded in 1861 by Matthew Vassar, it was the second degree-granting institution of higher education for women in the United States, closely foll ...

.New York Times: "Kate Mandel, Christopher Bruce"
September 27, 2015

References

External links

Money, July 5, 2005
"The Power 30: The Investors,"
SmartMoney, October 10, 2006
"The Forbes 400 #289 Stephen Mandel, Jr.,"
Forbes, October 4, 2021 {{DEFAULTSORT:Mandel, Stephen Tiger Management 1956 births Living people 20th-century American businesspeople 21st-century American businesspeople 21st-century philanthropists American billionaires American chairpersons of corporations American chief executives of financial services companies American financial analysts American financial company founders American hedge fund managers American investors American management consultants Businesspeople from Greenwich, Connecticut Dartmouth College alumni Dartmouth College people Goldman Sachs people Harvard Business School alumni Jewish American philanthropists 21st-century American Jews Psi Upsilon