Sec Form 3/A Filing - Asbury Mark @ Allakos Inc. - 2019-02-05

FORM 3/A 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 Asbury Mark 2. Issuer Name and Ticker or Trading Symbol Allakos Inc. [ ALLK] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) X __ Other (specify below) Chief Legal Officer/General Counsel (Last) (First) (Middle) 975 ISLAND DRIVE, SUITE 201 3. Date of Earliest Transaction (MM/DD/YY) 02/05/2019 (Street) REDWOOD CITY, CA94065 4. If Amendment, Date Original Filed (MM/DD/YY) 02/14/2019 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

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 (Right to buy) $ 57.3 ( 1 ) 11/07/2028( 2 ) Common Stock 120,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Asbury Mark 975 ISLAND DRIVE, SUITE 201 REDWOOD CITY, CA94065 Chief Legal Officer General Counsel Signatures /s/ Mark Asbury 07/30/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Mr. Asbury was granted options to purchase 120,000 shares of common stock on November 7, 2018, of which 25% will vest on November 7, 2019, the first anniversary of the vesting commencement date, with the remaining 75% of the options vesting monthly in substantially equal installments over the following 36 months, subject to Mr. Asbury's continued services to the Company through each vesting date. The options will terminate on the tenth anniversary of the date of grant, unless otherwise previously terminated pursuant to the terms of the option agreement accompanying the grant. ( 2 )This report on Form 3/A corrects an error with respect to the Expiration Date on the Form 3 filed February 14, 2019.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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