Insider Trading & Ownership of Mark Herndon

Location: Radnor, PA
Summary: The estimated net worth of Mark Herndon is at least $62,782 dollars as of 21 Nov 2025. Mark Herndon is the SVP & Chief Financial Officer of SAFEGUARD SCIENTIFICS INC and owns shares of SAFEGUARD SCIENTIFICS INC (SFES) stock worth about $59.3K. Mark Herndon is the Chief Financial Officer of Horizon Kinetics Holding Corp and owns shares of Horizon Kinetics Holding Corp (HKHC) stock worth about $3.5K.
Signature: /s/ Jay Kesslen, attorney-in-fact
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Ownership of Mark Herndon

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
SFES	SAFEGUARD SCIENTIFICS INC	SVP & Chief Financial Officer	$59,302			17 Jan 2023
HKHC	Horizon Kinetics Holding Corp	Chief Financial Officer	$3,480	+$3,704		20 Nov 2025

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.