Sec Form 4 Filing - Tyree James L @ ChemoCentryx, Inc. - 2022-10-20

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 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 Tyree James L 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., 835 INDUSTRIAL ROAD, SUITE 600 3. Date of Earliest Transaction (MM/DD/YY) 10/20/2022 (Street) SAN CARLOS, CA94070 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 10/20/2022 D 9,138 D 0 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Stock Option $ 22.39 10/20/2022 D 8,342 ( 3 ) ( 3 ) Common Stock 8,342 ( 3 ) 0 D Stock Option $ 10.06 10/20/2022 D 4,504 ( 3 ) ( 3 ) Common Stock 4,504 ( 3 ) 0 D Stock Option $ 11.6 10/20/2022 D 12,287 ( 3 ) ( 3 ) Common Stock 12,287 ( 3 ) 0 D Stock Option $ 12.94 10/20/2022 D 13,352 ( 3 ) ( 3 ) Common Stock 13,352 ( 3 ) 0 D Stock Option $ 13.94 10/20/2022 D 12,500 ( 3 ) ( 3 ) Common Stock 12,500 ( 3 ) 0 D Restricted Stock Unit ( 4 ) 10/20/2022 D 15,723 ( 4 ) ( 4 ) Common Stock 15,723 ( 4 ) 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Tyree James L C/O CHEMOCENTRYX, INC. 835 INDUSTRIAL ROAD, SUITE 600 SAN CARLOS, CA94070 X Signatures /s/ Susan M. Kanaya, as Attorney-in-Fact 10/20/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects the disposition of securities pursuant to the Agreement and Plan of Merger (the "Merger Agreement"), dated as of August 3, 2022, among Amgen Inc. ("Parent"), Carnation Merger Sub, Inc. ("Merger Sub") and ChemoCentryx, Inc. (the "Company"), pursuant to which, on October 20, 2022, Merger Sub merged with and into the Company, with the Company surviving the merger as a wholly owned subsidiary of Parent (the "Merger"). At the effective time of the Merger (the "Effective Time"), each issued and outstanding share of common stock, par value $0.001 per share, of the Company (collectively, the "Shares," and each such share, a "Share") (other than any such Shares (i) held by the Company as treasury stock or owned by Parent or Merger Sub, (ii) held by any subsidiary of the Company or Parent (other than Merger Sub) or (iii) as to which appraisal rights have been properly exercised, ( 2 )(Continued from Footnote 1) and not withdrawn, in accordance with the Delaware General Corporation Law) was thereupon canceled and converted into the right to receive $52.00 in cash, without interest (the "Merger Consideration"). As a result of the Merger, the Reporting Person no longer beneficially owns, directly or indirectly, any Shares. ( 3 )Pursuant to the Merger Agreement, immediately prior to the Effective Time, each stock option of the Company ("Company Option") held by the Reporting Person that remained outstanding as of immediately prior to the Effective Time vested in full and was canceled and converted into the right to receive an amount in cash (without interest) equal to the product obtained by multiplying (x) the number of Shares underlying such Company Option immediately prior to the Effective Time by (y) the amount, if any, by which the Merger Consideration exceeded the exercise price of such Company Option. ( 4 )At the Effective Time, each restricted stock unit of the Company held by the Reporting Person that was outstanding immediately prior to the Effective Time and that was (A) granted prior to August 3, 2022 or granted after August 3, 2022 and specified in the disclosure schedules delivered by the Company to Parent in connection with the Merger Agreement and/or (B) granted to a non-employee member of the Board became fully vested and was cancelled and converted into the right to receive an amount in cash, less applicable withholding taxes and without interest, equal to (x) the total number of Shares underlying such restricted stock unit multiplied by (y) $52.00. The restricted stock units did not have an expiration date.

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