12 insiders reported 333 Form 4 transactions for Horizon Kinetics Holding Corp (HKHC) over the past 18 months (most recent 2026-09-22). Recent activity: Nagelberg Allison (Director) Buy 190 shares, Brennan Alice C (Director) Buy 200 shares, Brennan Alice C (Director) Buy 200 shares, Brennan Alice C (Director) Buy 200 shares, Maran Partners Fund, LP (Insider) Buy 500 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-22 | Nagelberg Allison | Director | Buy | 190 | $4,991 |
| 2026-09-03 | Brennan Alice C | Director | Buy | 200 | $5,184 |
| 2026-08-31 | Brennan Alice C | Director | Buy | 200 | $5,240 |
| 2026-08-28 | Brennan Alice C | Director | Buy | 200 | $5,200 |
| 2026-08-27 | Maran Partners Fund, LP | Insider | Buy | 500 | $13,250 |
| 2026-08-27 | Maran Capital Management, LLC | Insider | Buy | 500 | $13,250 |
| 2026-08-27 | Maran Partners GP, LLC | Insider | Buy | 500 | $13,250 |
| 2026-08-27 | Roller Daniel J | Director | Buy | 500 | $13,250 |
| 2026-08-26 | Brennan Alice C | Director | Buy | 200 | $5,350 |
| 2026-08-25 | Rosenthal Brent D | Director | Buy | 2,000 | $54,000 |
| 2026-08-25 | Brennan Alice C | Director | Buy | 200 | $5,374 |
| 2026-08-20 | Herndon Mark | Chief Financial Officer | Buy | 200 | $5,350 |
| 2026-08-20 | Herndon Mark | Chief Financial Officer | Buy | 50 | $1,325 |
| 2026-05-21 | Rosenthal Brent D | Director | Buy | 700 | $19,495 |
| 2026-05-21 | Herndon Mark | Chief Financial Officer | Buy | 100 | $2,785 |
| 2026-03-24 | STAHL MURRAY | CEO and CIO | Buy | 10 | $346 |
| 2026-03-24 | Horizon Common Inc | 10% Owner | Buy | 10 | $346 |
| 2026-03-24 | STAHL MURRAY | CEO and CIO | Buy | 25 | $865 |
| 2026-03-24 | Horizon Common Inc | 10% Owner | Buy | 25 | $865 |
| 2026-03-24 | STAHL MURRAY | CEO and CIO | Buy | 18 | $623 |
| 2026-03-24 | Horizon Common Inc | 10% Owner | Buy | 18 | $623 |
| 2026-03-24 | STAHL MURRAY | CEO and CIO | Buy | 10 | $346 |
| 2026-03-24 | Horizon Common Inc | 10% Owner | Buy | 10 | $346 |
| 2026-03-24 | STAHL MURRAY | CEO and CIO | Buy | 25 | $865 |
| 2026-03-24 | Horizon Common Inc | 10% Owner | Buy | 25 | $865 |
来源：SEC Form 4 申报文件 · 截至 2026-09-22