Stephen Mandel
American hedge fund manager
About Stephen Mandel
Born 1956. Stephen Mandel is an American investor and hedge fund manager, known for Lone Pine Capital.
Stephen Frank Mandel Jr. (born March 12, 1956) is an American hedge fund manager, investor, and philanthropist. He founded Lone Pine Capital in 1997, after working as the managing director at Tiger Management. According to Forbes, Mandel has an estimated net worth of US$3.9 billion as of August 2022.
Early life Mandel is the son of Ann (née Safford) and Stephen Frank Mandel, and was raised in Darien, Connecticut. He has a brother, Edward Safford Mandel. In 1974, Mandel graduated from the Phillips Exeter Academy. In 1978, he graduated from Dartmouth College with a Bachelor of Arts in government and was a member of the Psi Upsilon fraternity.
Investment career From 1982 to 1984, and then from 1984 to 1990, before working as a consumer analyst and eventually managing director at Tiger Management,
In 1997, he left Tiger Management with backing from Robertson, and founded his own hedge fund, Lone Pine Capital
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. An increase of $1.1B, when compared to the Forbes 400 List, released October 2020. 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. Mandel donated $2 million to the Lincoln Project, an anti-Donald Trump super PAC. Mandel donated $16,179,889 to the Democrats in the 2020 election cycle, making him the 22nd largest donor that year.
Personal life In 1982, he married Susan Joy Zadek of Baltimore, whom he met at Harvard. They have three children.
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Important facts
People in Stephen Mandel's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Stephen Mandel's
Frequently asked questions
Who is Stephen Mandel?
American hedge fund manager
When was Stephen Mandel born?
Stephen Mandel was born on 12 March 1956.
What is Stephen Mandel's occupation?
Stephen Mandel is an investor and hedge fund manager.
What is Stephen Mandel known for?
Stephen Mandel is known for Lone Pine Capital.
What nationality is Stephen Mandel?
Stephen Mandel is American.
Sources & further reading
· DBpedia: Stephen Mandel (hedge fund manager)
Cite this page
APA: Biography.guide. (2026). Stephen Mandel. https://biography.guide/stephen-mandel/
MLA: "Stephen Mandel." Biography.guide, https://biography.guide/stephen-mandel/.
Chicago: "Stephen Mandel." Biography.guide. https://biography.guide/stephen-mandel/.
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