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 *
  Vifor (International) Ltd
 2. Date of Event Requiring Statement (Month/Day/Year)
10/23/2018		 3. Issuer Name and Ticker or Trading Symbol
ChemoCentryx, Inc. [CCXI]
(Last)
(First)
(Middle)
RECHENSTRASSE 37		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

CH-9014 ST. GALLEN, V8 		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ 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, $0.001 par value per share 10,676,825
I
See Notes (1) (2) (3)

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

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Vifor (International) Ltd
RECHENSTRASSE 37
CH-9014 ST. GALLEN, V8 		     X    
Vifor Pharma Ltd.
RECHENSTRASSE 37
CH-9014 ST. GALLEN, V8 		     X    
Vifor Fresenius Medical Care Renal Pharma Ltd.
RECHENSTRASSE 37
CH-9014 ST. GALLEN, V8 		     X    

Signatures

VIFOR (INTERNATIONAL) LTD., /s/ Oliver Kronenberg, Title: Group General Counsel 11/02/2018
**Signature of Reporting Person Date
VIFOR PHARMA LTD, /s/ Oliver Kronenberg, Title: Group General Counsel 11/02/2018
**Signature of Reporting Person Date
VIFOR FRESENIUS MEDICAL CARE RENAL PHARMA LTD., /s/ Oliver Kronenberg Title: Group General Counsel 11/02/2018
**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).
(1) In addition to Vifor (International) Ltd., an entity formed under the laws of Switzerland ("Vifor"), and Vifor Fresenius Medical Care Renal Pharma Ltd., an entity formed under the laws of Switzerland ("VFMCRP"), this Form 3 is being filed by Vifor Pharma Ltd., an entity formed under the laws of Switzerland ("Vifor Pharma" and together with Vifor and VFMCRP, the "Reporting Persons"). The business addresses for each of the Reporting Persons are listed above. Each of the Reporting Persons may be deemed to have a pecuniary interest in securities reported by it on this Form 3 (the "Subject Securities").
(2) Beneficial ownership of the common stock referred to herein is being reported solely because (i) Vifor Pharma may be deemed to beneficially own 7,343,492 shares of Common Stock of ChemoCentryx, Inc. as a result of Vifor Pharma's indirect ownership of 100% of the equity interests of Vifor, and (ii) Vifor Pharma may be deemed to beneficially own 3,333,333 shares of Common Stock of ChemoCentryx, Inc. as a result of Vifor Pharma's indirect ownership of 55% of the equity interests of VFMCRP.
(3) Each of the Reporting Persons disclaims any beneficial ownership of any of the Subject Securities, except to the extent of any pecuniary interest therein.

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