Stephen Mandel

Stephen Mandel runs Lone Pine Capital, a hedge fund overseeing $13.61B in disclosed equity holdings (SEC CIK 0001061165). The latest 13F filing (2025Q4) discloses 32 positions across 9 sectors, with the largest positions in TSM, VST and CVNA. On a mark-to-market basis the tracked portfolio has returned 14.7% over the past year. OpenStocks tracks 40 consecutive 13F filings for this manager — every position change, new entry, and exit is logged below.