Brian Elsbernd - Dec 9, 2024 Form 4 Insider Report for CATALYST PHARMACEUTICALS, INC. (CPRX)

Role: Chief Compliance/Legal Officer
Signature: /s/ Brian Elsbernd
Stock symbol: CPRX
Transactions as of: Dec 9, 2024
Transactions value $: $0
Form type: 4
Date filed: 12/11/2024, 05:00 PM
Previous filing: Nov 29, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CPRX	Common Stock, par value $0.001 per share	Options Exercise		+7.07K	+4.13%		178K	Dec 9, 2024	Direct	F1
transaction	CPRX	Common Stock, par value $0.001 per share	Tax liability		-1.72K	-0.96%		177K	Dec 9, 2024	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	CPRX	Restricted Stock Units	Options Exercise	$0	-7.07K	-0.65%	$0.00	1.09M	Dec 9, 2024	Common Stock	7.07K		Direct	F1, F3, F4

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of the Registrant's common stock upon vesting.
F2	Shares withheld by the Registrant to satisfy applicable withholding taxes upon vesting of restricted stock units.
F3	Derivative securities vest in equal tranches, 1/3rd on December 8, 2024, 1/3rd on December 8,2025 and 1/3rd on December 8, 2026.
F4	Shares of common stock are required to be delivered to the Reporting Person within sixty days of vesting. The first tranche of shares was delivered on December 9, 2024.