Insider tradingForm 4
Horizon Kinetics Holding Corp (HKHC) Insider Trading
10 open-market trades reported since Aug 20, 2026: 10 purchases worth $105K and 0 sales worth $0.
By insider
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Allison Nagelberg | Director | 1 | $5K | 0 | $0 |
| Alice C. Brennan | Director | 5 | $26K | 0 | $0 |
| Daniel J. Roller | Director | 1 | $13K | 0 | $0 |
| Brent D. Rosenthal | Director | 1 | $54K | 0 | $0 |
| Mark Herndon | CFO | 2 | $7K | 0 | $0 |
ADVERTISEMENT
320 × 100 ad slot
All trades
| Filed | Insider | Type | Value | 3 mo. after |
|---|---|---|---|---|
| Sep 22 | Allison NagelbergDirector | ▲ BUY | $5K | |
| Sep 3 | Alice C. BrennanDirector | ▲ BUY | $5K | |
| Aug 31 | Alice C. BrennanDirector | ▲ BUY | $5K | |
| Aug 28 | Alice C. BrennanDirector | ▲ BUY | $5K | |
| Aug 27 | Daniel J. RollerDirector | ▲ BUY | $13K | |
| Aug 26 | Alice C. BrennanDirector | ▲ BUY | $5K | |
| Aug 25 | Brent D. RosenthalDirector | ▲ BUY | $54K | |
| Aug 25 | Alice C. BrennanDirector | ▲ BUY | $5K | |
| Aug 20 | Mark HerndonCFO | ▲ BUY | $5K | |
| Aug 20 | Mark HerndonCFO | ▲ BUY | $1K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings