David Einhorn runs Greenlight Capital, a hedge fund overseeing $2.05B in disclosed equity holdings (SEC CIK 0001079114). The latest portfolio (2023Q4) discloses 40 positions across 8 sectors, with the largest positions in GRBK, CEIXEUR and BHF. On a mark-to-market basis the tracked portfolio has returned 80.9% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.