Herndon Mark Insider Trading Activity
Herndon Mark has been net-buying over the last 12 months with 3 purchases and 0 sales across 1 company.
HKHC is the most-traded position with 3 trades. The largest single transaction was a purchase of HKHC for $3K on Nov 20, 2025.
Performance Scorecard
Forward stock performance after each transaction by Herndon Mark. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | -13.5% | — | 0% | 3 |
| 90 days | -4.4% | — | 0% | 2 |
| 120 days | +3.9% | — | 50% | 2 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersHKHC · Horizon Kinetics Holding Corp
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Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| HKHC | Horizon Kinetics Holding Corp | 4 | $9K |
Other insiders at Horizon Kinetics Holding Corp
2 other tracked filers at HKHC.