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

5 trades

$15.8K

Total Sells

0 trades

$0.00

Net Position

Net Buyer

$15.8K

Companies Traded

HKHC

Active Period

Jun 2025 – Aug 2026

5 total trades

Most Recent

Buy HKHC

Aug 20, 2026 · $6.7K

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

Buys

5 · $15.8K

Sells

0 · $0.00

Total Shares Bought

550

Total Shares Sold

HKHC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Aug 20, 2026	Buy	250	$26.70	$6.7K	550
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