What stocks does Stephen Mandel own? — Lone Pine Capital LLC portfolio & 13F holdings

Stephen Mandel runs Lone Pine Capital LLC, a multi-strategy investment firm tracked here via SEC 13F filings. As of the Q4 2025 13F filing, the disclosed long-equity portfolio is valued at $13.6B across 32 positions. The largest holdings are TAIWAN SEMICONDUCTOR MFG LTD, VISTRA CORP, and CARVANA CO (TAIWAN SEMICONDUCTOR MFG LTD alone is 6.8% of the book).

New positions opened in the latest quarter include AFFIRM HLDGS INC, ASML HOLDING N V, and BOSTON SCIENTIFIC CORP. Recently exited names: CIENA CORP, EQT CORP, and ETSY INC.