HORIZON KINETICS ASSET MANAGEMENT LLC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q2 2026, the fund manages $8.8B in reported equity holdings across 351 positions. The largest holdings are TPL (48.6%), GBTC (6.3%), LB (5.2%), HE (3.4%), MIAX (3.3%). The portfolio is concentrated in Other (95.8%), Energy (1.5%), Financial Services (1.3%). Data sourced from SEC EDGAR 13F filings (CIK 1056823).