Horizon Kinetics Holding Corp (HKHC) Insider Trading

4 insiders at Horizon Kinetics Holding Corp (HKHC) have purchased stock in the past 90 days, totaling $35K across 6 transactions (1,046 shares).

The most recent purchase was by Director Nagelberg Allison on March 20, 2026 — a $5K buy of 150 shares at $33.96, bringing his total holdings to 400 shares.

Insiders who purchased: Rosenthal Brent D (Director, 1 buy totaling $25K); Nagelberg Allison (Director, 1 buy totaling $5K); Herndon Mark (CFO, 1 buy totaling $3K); STAHL MURRAY (CEO, 3 buys totaling $2K).

This insider buying is notable given that HKHC had no recorded open market purchases in the nine months before that.

With 4 different insiders buying in the same 90-day window, this qualifies as cluster buying at HKHC — a pattern that research suggests can signal conviction among management.

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