HBK INVESTMENTS L P is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q4 2024, the fund manages $2.3B in reported equity holdings across 11 positions. The largest holdings are KELLANOVA (30.4%), NSC (16.7%), ALTAIR ENG (13.2%), EDVR (11.6%), SMMT (10.0%). The portfolio is concentrated in Other (90.0%), Healthcare (10.0%). Data sourced from SEC EDGAR 13F filings (CIK 1011443).