Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  BRENNAN DANIEL
 2. Date of Event Requiring Statement (Month/Day/Year)
06/13/2018		 3. Issuer Name and Ticker or Trading Symbol
CATALYST PHARMACEUTICALS, INC. [CPRX]
(Last)
(First)
(Middle)
355 ALHAMBRA CIRCLE, SUITE 1250		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Commercial Officer
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CORAL GABLES, FL 33134		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock, par value $0.001 per share 3,094
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Options to purchase Common Stock 06/13/2019 06/13/2025 Common Stock 133,333 $ 3.41 D  
Options to purchase Common Stock 06/13/2020 06/13/2025 Common Stock 133,333 $ 3.41 D  
Options to purchase Common Stock 06/13/2021 06/13/2025 Common Stock 133,334 $ 3.41 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
BRENNAN DANIEL
355 ALHAMBRA CIRCLE
SUITE 1250
CORAL GABLES, FL 33134		       Chief Commercial Officer  

Signatures

/s/ Daniel Brennan 06/15/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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