Herndon Mark
SEC insider (Form 3/4/5 filer). CIK 0001754318. Chief Financial Officer at Horizon Kinetics Holding Corp (HKHC). 6 reported Form 4/5 transactions since Sep 2024; latest on Aug 20, 2026. Located in NEW YORK, NY.
Companies Herndon Mark has filed insider reports for
- Horizon Kinetics Holding Corp (HKHC): Officer, Chief Financial Officer
Herndon Mark
CIK: 0001754318
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
Horizon Kinetics Holding Corp
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Aug 20, 2026HKHC
Horizon Kinetics Holding Corp
PurchaseDirect200 shares at avg. $26.75$5K - Aug 19, 2026HKHC
Horizon Kinetics Holding Corp
PurchaseDirect50 shares at avg. $26.50$1K - May 20, 2026HKHC
Horizon Kinetics Holding Corp
PurchaseDirect100 shares at avg. $27.85$3K - Mar 18, 2026HKHC
Horizon Kinetics Holding Corp
PurchaseDirect80 shares at avg. $33.03$3K - Nov 20, 2025HKHC
Horizon Kinetics Holding Corp
PurchaseDirect100 shares at avg. $29.00$3K - Jun 4, 2025HKHC
Horizon Kinetics Holding Corp
PurchaseDirect20 shares at avg. $40.18$803.6
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 20, 2026 | HKHC Horizon Kinetics Holding Corp | Purchase | 200 | $26.75 | $5,350 | Direct |
| Aug 19, 2026 | HKHC Horizon Kinetics Holding Corp | Purchase | 50 | $26.50 | $1,325 | Direct |
| May 20, 2026 | HKHC Horizon Kinetics Holding Corp | Purchase | 100 | $27.85 | $2,785 | Direct |
| Mar 18, 2026 | HKHC Horizon Kinetics Holding Corp | Purchase | 80 | $33.03 | $2,642 | Direct |
| Nov 20, 2025 | HKHC Horizon Kinetics Holding Corp | Purchase | 100 | $29.00 | $2,900 | Direct |
| Jun 4, 2025 | HKHC Horizon Kinetics Holding Corp | Purchase | 20 | $40.18 | $804 | Direct |
1-6 of 6 transactions