David S. Tierney - Insider Trading & Ownership

Location: C/O Able Laboratories, Inc., 6 Hollywood Court, Cn 1013, South Plainfield, NJ
Summary: The estimated net worth of David S. Tierney is at least $8.68M dollars as of November 24, 2025. David S. Tierney is the Director of CATALYST PHARMACEUTICALS, INC. and owns shares of CATALYST PHARMACEUTICALS, INC. (CPRX) stock worth about $8.62M. David S. Tierney is the Director of ZEVRA THERAPEUTICS, INC. and owns shares of ZEVRA THERAPEUTICS, INC. (ZVRA) stock worth about $53.7K.
Signature: /s/ David S. Tierney
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Ownership of David S. Tierney

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
CPRX	CATALYST PHARMACEUTICALS, INC.	Director	$8.62M	-$525K	-5.74%	Nov 20, 2025
ZVRA	ZEVRA THERAPEUTICS, INC.	Director	$53.7K			Mar 9, 2023

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.