Herndon Mark, Chief Financial Officer, made two open market purchases of Horizon Kinetics Holding Corp ($HKHC) shares in the last 365 days, totaling $3,703.60. His most recent buy occurred on November 20, 2025. These purchases rank 4,661st among 4,983 insiders in our database, where the average buy amounts to $1.46 million across about 3.3 transactions. Herndon Mark reported no open market sales during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 18, 2026 | Horizon Kinetics Holding Corp | $HKHC | Herndon Mark | Chief Financial Officer | P | Common Stock | 80 | $33.03 | 200.0000 | 18,635,321 | 66.67% | 0.00% |
| Nov. 20, 2025 | Horizon Kinetics Holding Corp | $HKHC | Herndon Mark | Chief Financial Officer | P | Common Stock | 100 | $29.00 | 120.0000 | 18,635,321 | 500.00% | 0.00% |
| June 4, 2025 | Horizon Kinetics Holding Corp | $HKHC | Herndon Mark | Chief Financial Officer | P | Common Stock | 20 | $40.18 | 20.0000 | 18,635,321 | 9999.99% | 0.00% |
| Jan. 17, 2023 | SAFEGUARD SCIENTIFICS INC | $SFES | Herndon Mark | SVP & Chief Financial Officer | A | common stock | 26835 | $0.00 | 70,625.0000 | 0 | 61.28% | 0.00% |
| Jan. 17, 2023 | SAFEGUARD SCIENTIFICS INC | $SFES | Herndon Mark | SVP & Chief Financial Officer | F | common stock | 13156 | $3.13 | 57,469.0000 | 0 | 18.63% | 0.00% |