HERNDON MARK

PrivateCIK: 1754318
Location

RADNOR, PA

HERNDON MARK (Chief Financial Officer) purchased 500.0% of their position (100.00 shares) of HORIZON KINETICS HOLDING CORP on the open market

Open‑market purchase worth $2.9K — a major conviction buy. The strongest form of insider conviction signal.

P · 1 purchase
InsiderHERNDON MARKCIK 1754318
Officer· Chief Financial Officer
Since Aug 2024
+100.00
Net shares
Net buyer
$2.9K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
100.00 acquired
Non-Derivative Transactions1

Common Stock

Direct
P · Purchase

Shares

+100.00

Price / share

$29.00

Trade value

$2.90K

% of position

500.0%
11/20/2025
20.00120.00
Total

Net shares

+100.00

Net value

$2.90K

Derivative Transactions0
No derivative transactions reported
HERNDON MARK — Insider Transaction (Form 4) Filed Nov 21, 2025 | Finecho