// company-profile
Horizon Kinetics Holding Corp
HKHCExchangeOTCSectorInvestment AdviceInc.DEFilings101Insiders19
// api This Horizon Kinetics Holding Corp insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Horizon Kinetics Holding Corp insiders bought $22K across 2 transactions with no open-market sales.
- Most active insider: Rosenthal Brent D with 1 transaction totaling $19K.
- Largest single purchase: $19K by Rosenthal Brent D on May 20, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Horizon Kinetics Holding Corp as of 2026-03-31
Total reported AUM
$35.5M
QoQ change
—
Reporting period
2026-03-31
#1
HORIZON KINETICS ASSET MANAGEMENT LLC
CIK 1056823
$35.5M
1.1M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 20, 2026 | Herndon Mark | HKHC | Purchase | 100 | $27.85 | $3K |
| May 20, 2026 | Rosenthal Brent D | HKHC | Purchase | 700 | $27.85 | $19K |
| Mar 20, 2026 | Nagelberg Allison | HKHC | Purchase | 150 | $33.96 | $5K |
| Mar 20, 2026 | STAHL MURRAY | HKHC | Purchase | 25 | $34.60 | $1K |
| Mar 20, 2026 | STAHL MURRAY | HKHC | Purchase | 10 | $34.60 | $0K |
45 more transactions hidden
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