KINGDON CAPITAL MANAGEMENT, L.L.C. is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q1 2026, the fund manages $911M in reported equity holdings across 65 positions. The largest holdings are SPY (20.3%), SNDX (6.4%), NVDA (3.8%), NXE (3.2%), ECNS.SN (2.7%). The portfolio is concentrated in Other (88.9%), Technology (3.2%), Consumer Cyclical (3.0%). Data sourced from SEC EDGAR 13F filings (CIK 1000097).