Stephen F. Mandel, Jr. is the founder and managing member of Lone Pine Capital in Greenwich. See sector focus and contact routes.
Stephen F. Mandel, Jr. is the founder and managing member of Lone Pine Capital in Greenwich, and SEC filings for Lone Cascade identify him as its executive officer; Lone Pine was founded in 1997 after Mandel worked as a consumer analyst and senior managing director at Tiger Management and earlier at Goldman Sachs and Mars and Company. Lone Pine is a public-equity manager with both long/short and long-only products, and sources describe Mandel’s style as fundamental growth investing across global markets. Public descriptions indicate Lone Cascade is a long-only fund, while Lone Pine’s broader platform invests across the public equity markets globally. I could not verify a consistent standard check size, but public reports show Mandel’s funds taking meaningful positions in large-cap names rather than private-equity-style deals. Named holdings reported in recent materials include Taiwan Semiconductor Manufacturing, Vistra Energy, Carvana, ASML, and KKR. Earlier reporting also tied Lone Pine to Activision Blizzard, Electronic Arts, and Amazon. Mandel has said he looks for companies with strong returns
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