Horizon Kinetics Holding Corp (HKHC) insider trading
Every open-market stock purchase and sale by Horizon Kinetics Holding Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- Last insider buy: Brent D Rosenthal (Director), $19.5K, 4 months ago.
Last 12 months: insiders bought $82.7K (26 buys) and sold $0 (0 sales). Last close $27.65 on Jun 4, 2026.
Recent HKHC insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| May 20, 2026 | Brent D Rosenthal (Director) | Bought | $19.5K |
| May 20, 2026 | Mark Herndon (CFO) | Bought | $2.8K |
| Mar 20, 2026 | Allison Nagelberg (Director) | Bought | $5.1K |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $865 |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $865 |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $623 |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $623 |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $346 |
| Mar 20, 2026 | Murray Stahl (CEO) | Bought | $346 |
| Mar 19, 2026 | Murray Stahl (CEO) | Bought | $1.6K |
| Mar 19, 2026 | Murray Stahl (CEO) | Bought | $852 |
| Mar 19, 2026 | Murray Stahl (CEO) | Bought | $613 |
| Mar 18, 2026 | Brent D Rosenthal (Director) | Bought | $24.8K |
| Mar 18, 2026 | Mark Herndon (CFO) | Bought | $2.6K |
| Mar 18, 2026 | Murray Stahl (CEO) | Bought | $340 |
| Mar 18, 2026 | Murray Stahl (CEO) | Bought | $306 |
| Mar 18, 2026 | Murray Stahl (CEO) | Bought | $272 |
| Dec 23, 2025 | Maran Partners Fund LP (Insider) | Sold (not open market) | — |
| Dec 23, 2025 | Maran Partners Fund LP (Insider) | Bought (not open market) | — |
| Dec 10, 2025 | Murray Stahl (CEO) | Bought | $324 |
| Dec 10, 2025 | Murray Stahl (CEO) | Bought | $162 |
| Dec 10, 2025 | Murray Stahl (CEO) | Bought | $108 |
| Dec 9, 2025 | Murray Stahl (CEO) | Bought | $324 |
| Dec 9, 2025 | Murray Stahl (CEO) | Bought | $162 |
| Dec 9, 2025 | Murray Stahl (CEO) | Bought | $108 |
Who's trading HKHC
- Mark Herndon, CFO: bought $8.3K (3 buys), last May 20, 2026
- Brent D Rosenthal, Director: bought $52.5K (3 buys), last May 20, 2026
- Allison Nagelberg, Director: bought $5.1K (1 buy), last Mar 20, 2026
- Murray Stahl, CEO: bought $16.3K (54 buys), last Mar 20, 2026
- Maran Partners Fund LP, Insider: other filings, last Dec 23, 2025
- Horizon Common Inc, 10% owner: bought $494 (2 buys), last Dec 4, 2025
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