William T. Andrews - 20 Nov 2025 Form 4 Insider Report for CATALYST PHARMACEUTICALS, INC. (CPRX)

Role: Chief Medical Officer
Signature: /s/ William T. Andrews
Issuer symbol: CPRX
Transactions as of: 20 Nov 2025
Net transactions value: $0
Form type: 4
Filing time: 24 Nov 2025, 20:08:17 UTC
Previous filing: 06 Jun 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Andrews William T.	Chief Medical Officer	355 ALHAMBRA CIRCLE, SUITE 801, CORAL GABLES	/s/ William T. Andrews	24 Nov 2025	0001638459

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	Options to purchase common stock	Award	$0	+98,652	+71%	$0.000000	238,360	20 Nov 2025	Common Stock	98,652	$22.77	Direct	F1
transaction	CPRX	Restricted Stock Units	Award	$0	+29,776	+12%	$0.000000	268,136	20 Nov 2025	Common Stock	29,776		Direct	F1, F2, F3

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

Explanation of Responses:

Id	Content
F1	Derivative securities vest in equal tranches, 1/3rd on November 20, 2026, 1/3rd on November 20, 2027 and 1/3rd on November 20, 2028.
F2	Each restricted stock unit represents a contingent right to receive one share of the Registrant's common stock upon vesting.
F3	Shares of common stock will be delivered to the Reporting Person upon vesting.