Chris Hohn runs TCI Fund Mgmt, an activist overseeing $53.65B in disclosed equity holdings (SEC CIK 0001647251). The latest portfolio (2025Q4) discloses 9 positions across 4 sectors, with the largest positions in GE, V and MSFT. On a mark-to-market basis the tracked portfolio has returned 28.9% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.