Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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 *
Gelbfish Gary A.
   2. Issuer Name and Ticker or Trading Symbol
CorMedix Inc. [CRMD] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O CORMEDIX INC., 400 CONNELL DRIVE, SUITE 5000		 3. Date of Earliest Transaction (Month/Day/Year)
10/12/2018
(Street)

BERKELEY HEIGHTS, NJ 07922		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 10/12/2018   M   1,000,000 A $ 1.05 3,101,121 D  
Common Stock 10/12/2018   F   468,750 D $ 2.24 2,632,371 D  
Common Stock               14,000 (1) I Landmark Foundation (1)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Series B Common Stock Warrant (2) $ 1.05 10/12/2018   M     1,000,000   (2)   (2) Common Stock, $0.001 par value per share 1,000,000 $ 0 0 D  
Series A Common Stock Warrant (3) $ 0.75 09/10/2018   J V   1,000,000   (3)   (3) Common Stock, $0.001 par value per share 1,000,000 $ 0 0 D  
Stock Option (Right to Buy Common Stock) $ 0.57               (4) 02/16/2028 Common Stock, $0.001 par value per share 40,000   40,000 D  
Restricted Stock Units (5)               (5)   (5) Common Stock, $0.001 par value per share 10,000   10,000 D  
Stock Option (Right to Buy Common Stock) $ 0.37               (6) 08/03/2027 Common Stock, $0.001 par value per share 75,000   75,000 D  
Series C-3 Non-Voting Convertible Preferred Stock (7)             01/08/2014   (7) Common Stock, $0.001 par value per share 500,000   500,000 D  
Warrant (Right to Purchase Common Stock) $ 0.9             01/08/2015 01/01/2020 Common Stock, $0.001 par value per share 250,000   250,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Gelbfish Gary A.
C/O CORMEDIX INC.
400 CONNELL DRIVE, SUITE 5000
BERKELEY HEIGHTS, NJ 07922		        

Signatures

 /s/ Alexander M. Donaldson, by Power of Attorney   10/16/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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).
(1) Held by Landmark Foundation, of which Dr. Gelbfish and his wife are trustees.
(2) The Series B Common Stock warrant is exercisable any time after the Company publicly announces through the filing of a Current Report on Form 8-K that the Company has received Stockholder Approval and the amendment to the Company's Certificate of Incorporation has become effective (the "Initial Exercise Date"). The warrant shall be exercisable for a period of five years from the Initial Exercise Date.
(3) The Series A Common Stock warrant is exercisable any time after the Company publicly announces through the filing of a Current Report on Form 8-K that the Company has received Stockholder Approval and the amendment to the Company's Certificate of Incorporation has become effective (the "Initial Exercise Date"). The warrant was exercisable for a period of thirteen months from the Initial Exercise Date and expired unexercised on September 10, 2018..
(4) These options were granted on 2/16/2018. The options vest in full on the first anniversary of the date of grant, subject to continued service on the board.
(5) These Restricted Stock Units were granted on 2/16/2018. Each restricted stock unit represents the right to receive one share of CorMedix Inc. common stock. The restricted stock units vest in full on the first anniversary of the date of grant, subject to continued service on the board.
(6) These options vest as follows: 1/3 on August 3, 2017, an additional 1/3 on August 3, 2018, and the remaining 1/3 on August 3, 2019.
(7) The conversion ratio is equal to the stated value of $10.00 divided by the conversion price of $1.00. The Series C-3 Non-Voting Convertible Preferred Stock is perpetual.

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