David S. Tierney - Aug 27, 2025 Form 4 Insider Report for CATALYST PHARMACEUTICALS, INC. (CPRX)

Role
Director
Signature
/s/ David S. Tierney
Stock symbol
CPRX
Transactions as of
Aug 27, 2025
Transactions value $
-$413,200
Form type
4
Date filed
8/28/2025, 05:00 PM
Previous filing
Feb 19, 2025
Next filing
Nov 24, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Tierney David S Director 355 ALHAMBRA CIRCLE, SUITE 801, CORAL GABLES /s/ David S. Tierney 2025-08-28 0001292636

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 $112K +50K +14.06% $2.24 406K Aug 27, 2025 Direct
transaction CPRX Common Stock, par value $0.001 per share Sale -$525K -26K -6.41% $20.20 380K Aug 27, 2025 Direct F1, 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 Options to purchase common stock Options Exercise $0 -50K -24.01% $0.00 158K Aug 27, 2025 Common Stock 50K $2.24 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Shares were sold on the open market to fund the exercise price and estimated taxes due from Reporting Person as a result of the exercise of the stock options reported on Table II.
F2 Represents a weighted average sales price for the shares sold. Shares were sold in a range from $20.10 to $20.32 per share.
F3 Derivative securities vested in three annual tranches beginning on December 19, 2019.