UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Schedule 13G/A


  Under the Securities Exchange Act of 1934

(Amendment No. 1)*

 

Catalyst Pharmaceuticals, Inc.
(Name of Issuer)
 
Common Stock
(Title of Class of Securities)
 
14888U101
(CUSIP Number)
 
December 31, 2017
(Date of Event which Requires Filing of this Statement)
 
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

 

x Rule 13d-1(b)
   
o Rule 13d-1(c)
   
o Rule 13d-1(d)

 

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

 

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

 

Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

 
CUSIP No. 14888U101 13G/A Page 2 of 9 Pages
     
1.

NAMES OF REPORTING PERSONS

 

Great Point Partners, LLC

 

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY):

 

37-1475292

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) o
3. SEC USE ONLY
4.

CITIZENSHIP OR PLACE OF ORGANIZATION

 

USA

NUMBER OF SHARES

 

BENEFICIALLY

 

OWNED BY EACH

 

REPORTING PERSON

 

WITH

5.

SOLE VOTING POWER

 

0

6.

SHARED VOTING POWER

 

3,817,288

7.

SOLE DISPOSITIVE POWER

 

0

8.

SHARED DISPOSITIVE POWER

 

3,817,288

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

3,817,288

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

3.73%1

12.

TYPE OF REPORTING PERSON (See Instructions)

 

IA

 

 
1 Based on a total of 102,474,498 shares outstanding, as reported in the Issuer’s Form 424B5 Prospectus filed with the SEC on November 28, 2017 (such share number inclusive of the underwriters’ exercise of their option to purchase additional shares in full as referenced therein).
 
CUSIP No. 14888U101 13G/A Page 3 of 9 Pages
     
1.

NAMES OF REPORTING PERSONS

 

Dr. Jeffrey R. Jay, M.D.

 

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY):

 

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) o
3. SEC USE ONLY
4.

CITIZENSHIP OR PLACE OF ORGANIZATION

 

USA

NUMBER OF SHARES

 

BENEFICIALLY

 

OWNED BY EACH

 

REPORTING PERSON

 

WITH

5.

SOLE VOTING POWER

 

0

6.

SHARED VOTING POWER

 

3,817,288

7.

SOLE DISPOSITIVE POWER

 

0

8.

SHARED DISPOSITIVE POWER

 

3,817,288

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

3,817,288

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

3.73%1

12.

TYPE OF REPORTING PERSON (See Instructions)

 

IN

 
CUSIP No. 14888U101 13G/A Page 4 of 9 Pages
     
1.

NAMES OF REPORTING PERSONS

 

Mr. David Kroin

 

I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY):

 

2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
(a) o
(b) o
3. SEC USE ONLY
4.

CITIZENSHIP OR PLACE OF ORGANIZATION

 

USA

NUMBER OF SHARES

 

BENEFICIALLY

 

OWNED BY EACH

 

REPORTING PERSON

 

WITH

5.

SOLE VOTING POWER

 

0

6.

SHARED VOTING POWER

 

3,817,288

7.

SOLE DISPOSITIVE POWER

 

0

8.

SHARED DISPOSITIVE POWER

 

3,817,288

9.

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

 

3,817,288

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (See Instructions)

o

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

 

3.73%1

12.

TYPE OF REPORTING PERSON (See Instructions)

 

IN

 
CUSIP No. 14888U101 13G/A Page 5 of 9 Pages
         
Item 1.        
         
  (a)   Name of Issuer
       
      Catalyst Pharmaceuticals, Inc.
         
  (b)   Address of Issuer’s Principal Executive Offices
       
      355 Alhambra Circle, Suite 1250, Coral Gables, FL 33134
         
Item 2.        
         
  (a)   Name of Person Filing
         
        Great Point Partners, LLC
Dr. Jeffrey R. Jay, M.D.
Mr. David Kroin
         
  The Reporting Persons have entered into a Joint Filing Agreement, dated February 14, 2018, a copy of which is filed with this Schedule 13G/A as Exhibit A, pursuant to which the Reporting Persons have agreed to file this statement jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Act.
         
  (b)   Address of Principal Business Office, or if none, Residence
       
       The address of the principal business office of each of the Reporting Persons is
         
        165 Mason Street, 3rd Floor
Greenwich, CT 06830
         
  (c)   Citizenship
         
  Great Point Partners, LLC is a limited liability company organized under the laws of the State of Delaware.  Dr. Jeffrey R. Jay, M.D. is a citizen of the United States. Mr. David Kroin is a citizen of the United States.
         
  (d)   Title of Class of Securities
       
      Common Stock
       
  (e)   CUSIP Number
       
      14888U101
       
Item 3. If this statement is filed pursuant to §240.13d-1(b) or 240.13d.2(b) or (c), check whether the person filing is a:
         
    Not Applicable.
         
  (a) o Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o)
         
  (b) o Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c).
       
  (c) o Insurance company as defined in Section 3(a)(19) of the Act (15. U.S.C. 78c).
       
  (d) o Investment Company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).
       
  (e) x An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E).
 
CUSIP No. 14888U101 13G/A Page 6 of 9 Pages
         
  (f) o An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F).
       
  (g) o A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G).
       
  (h) o A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813).
       
  (i) o A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3).
       
  (j) o Group, in accordance with §240.13d-1(b)(1)(ii)(J).
       
Item 4. Ownership
   
  Not Applicable
   
Item 5. Ownership of Five Percent or Less of a Class

 

If this statement is being filed to report the fact that as of the date hereof each of the Reporting Persons has ceased to be the beneficial owner of more than five percent of the class of securities, check the following x.

 

Item 6. Ownership of More than Five Percent on Behalf of Another Person:
   
  Not Applicable
   
Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company
   
  Not Applicable.
   
Item 8. Identification and Classification of Members of the Group
   
  Not Applicable.

 

Item 9. Notice of Dissolution of Group
   
  Not Applicable.
   
Item 10. Certification

 

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as participant in any transaction having that purpose or effect.

 
CUSIP No. 14888U101 13G/A Page 7 of 9 Pages

 

SIGNATURE

 

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

 

Date: February 14, 2018

 

  GREAT POINT PARTNERS, LLC
       
  By:  /s/ Dr. Jeffrey R. Jay, M.D.  
    Dr. Jeffrey R. Jay, M.D.,  
      as senior managing member  
       
  /s/ Dr. Jeffrey R. Jay, M.D.  
  DR. JEFFREY R. JAY, M.D.  
       
  /s/ Mr. David Kroin  
  MR. DAVID KROIN  
 

Exhibit A

 

AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G/A

 

The undersigned hereby agree as follows:

 

(i)        Each of them is individually eligible to use the Schedule 13G/A to which this Exhibit is attached, and such Schedule 13G/A is filed on behalf of each of them; and

 

(ii)       Each of them is responsible for the timely filing of such Schedule 13G/A and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

 

Date: February 14, 2018

 

  GREAT POINT PARTNERS, LLC
   
  By:  /s/ Dr. Jeffrey R. Jay, M.D.  
    Dr. Jeffrey R. Jay, M.D.,  
      as senior managing member  
       
  /s/ Dr. Jeffrey R. Jay, M.D.  
  DR. JEFFREY R. JAY, M.D.  
       
  /s/ Mr. David Kroin  
  MR. DAVID KROIN