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
- Brent D Rosenthal (Director) and 4 others bought $100K in the last 90 days, growing their stake 82%.
Last 12 months: insiders bought $183K (34 buys) and sold $0 (0 sales). Last close $27.65 on Jun 4, 2026.
Recent HKHC insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Sep 18, 2026 | Allison Nagelberg (Director) | Bought | $5K |
| Sep 2, 2026 | Alice C Brennan (Director) | Bought | $5.2K |
| Aug 27, 2026 | Alice C Brennan (Director) | Bought | $5.2K |
| Aug 26, 2026 | Daniel J Roller (Director) | Bought | $13.3K |
| Aug 25, 2026 | Alice C Brennan (Director) | Bought | $5.3K |
| Aug 24, 2026 | Brent D Rosenthal (Director) | Bought | $54K |
| Aug 24, 2026 | Alice C Brennan (Director) | Bought | $5.4K |
| Aug 20, 2026 | Mark Herndon (CFO) | Bought | $5.3K |
| Aug 19, 2026 | Mark Herndon (CFO) | Bought | $1.3K |
| 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 |
Who's trading HKHC
- Allison Nagelberg, Director: bought $10.1K (2 buys), last Sep 18, 2026
- Alice C Brennan, Director: bought $21.1K (4 buys), last Sep 2, 2026
- Daniel J Roller, Director: bought $13.3K (1 buy), last Aug 26, 2026
- Brent D Rosenthal, Director: bought $106K (4 buys), last Aug 24, 2026
- Mark Herndon, CFO: bought $15K (5 buys), last Aug 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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