Fox Run Management Expands Stake in SL Green Realty Fox Run Management L.L.C. has significantly increased its holdings in SL Green Realty Corp., bolstering its position by 70.9% in Q4 2024. The firm now owns 24,296 shares, valued at $1.65 million. Institutional investors have been actively trading SL Green, with 89.96% of shares owned by such entities.12