Mark Herndon, Chief Financial Officer at Horizon Kinetics Holding Corp (HKHC), bought 100 shares at $29.00 ($3K) on 2025-11-20, disclosed to the SEC on 2025-11-21.
Open-market purchase of $3k HKHC by Chief Financial Officer. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade D.
Clearly above the average filing.
| Filing → |
| HKHC | BUY | 2026-03-19 | $3K | — | Filing → |
| HKHC | BUY | 2025-06-05 | $804 | — | Filing → |
| SFE | BUY | 2020-05-07 | $13K | — | Filing → |