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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1. Name and Address of Reporting Person * KLEIN IRA   2. Issuer Name and Ticker or Trading Symbol ChemoCentryx, Inc. [CCXI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O CHEMOCENTRYX, INC., 850 MAUDE AVE. 3. Date of Earliest Transaction (Month/Day/Year) 05/21/2015 (Street) MOUNTAIN VIEW, CA 94043 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 05/22/2015   M(1)   27,027 A $ 0 27,027 D   Common Stock 05/22/2015   S(2)   10,811 D $ 7.4446 (3) 16,216 D

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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

Restricted Stock Units

(4)

05/21/2015

A

11,795

(5)

(5)

Common Stock

11,795

$ 0

11,795

D

Restricted Stock Units

(4)

05/22/2015

M

27,027

(6)

(6)

Common Shares

27,027

$ 0

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
KLEIN IRA C/O CHEMOCENTRYX, INC. 850 MAUDE AVE. MOUNTAIN VIEW, CA 94043	X

Signatures

/s/ Susan M. Kanaya, as Attorney-in-Fact		05/26/2015
**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)	Shares were acquired upon vesting of restricted stock units awarded on May 22, 2014.
(2)	The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person to cover estimated taxes due upon vesting of restricted stock units.
(3)	Reflects the weighted average sale price of the shares sold. The shares were sold in multiple trades at prices ranging from $7.3024 to $7.62 per share, inclusive. The Reporting Person will provide to the SEC staff, the issuer or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price.
(4)	Each restricted stock unit represents a contingent right to receive one share of CCXI common stock.
(5)	100% of the restricted stock units will vest on May 21, 2016, subject to the Reporting Person's continued service to the Company on such date. Vested shares will be delivered to the Reporting Person within thirty (30) days following the vesting date.
(6)	100% of the restricted stock units vested on May 22, 2015. Vested shares will be delivered to the Reporting Person within thirty (30) days following the vesting date.

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