Mark Herndon

HKHC

Mark Herndon serves as officer: Chief Financial Officer at HORIZON KINETICS HOLDING (HKHC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

4 trades

$9.1K

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$9.1K

Companies Traded

HKHC

Active Period

Jun 2025 – May 2026

4 total trades

Most Recent

Buy HKHC

May 21, 2026 · $2.8K

Mark Herndon's Insider Trading at HORIZON KINETICS HOLDING (HKHC)

Buys

4 · $9.1K

Sells

0 · $0.00

Total Shares Bought

300

Total Shares Sold

HKHC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
May 21, 2026	Buy	100	$27.85	$2.8K	300
Mar 19, 2026	Buy	80	$33.03	$2.6K	200
Nov 20, 2025	Buy	100	$29.00	$2.9K	0
Jun 4, 2025	Buy	20	$40.18	$803.60	0

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