Sec Form 4 Filing - COLUMN GROUP II, LP @ RAPT Therapeutics, Inc. - 2020-06-18

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 COLUMN GROUP II, LP 2. Issuer Name and Ticker or Trading Symbol RAPT Therapeutics, Inc. [ RAPT] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1700 OWENS STREET, SUITE 500 3. Date of Earliest Transaction (MM/DD/YY) 06/18/2020 (Street) SAN FRANCISCO, CA94158 4. If Amendment, Date Original Filed (MM/DD/YY) 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 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) $ 28.27 06/18/2020 J 22,500 ( 1 ) 06/17/2030 Common Stock 22,500 $ 0 22,500 I See Footnote ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other COLUMN GROUP II, LP 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X Column Group II GP, LP 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X General Partner PONOI CAPITAL, LP 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X Ponoi Management, LLC 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X General Partner Ponoi Capital II, LP 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X Ponoi II Management, LLC 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X General Partner Kutzkey Tim 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X Managing Partner GOEDDEL DAVID V 1700 OWENS STREET SUITE 500 SAN FRANCISCO, CA94158 X Managing Partner Signatures /s/ Jennifer J. Carlson, Attorney-in-fact 06/22/2020 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The option shall vest in a series of three successive equal annual installments over the three-year period measured from the date of grant, subject to the continuous service of Peter Svennilson as a director of the Issuer through each applicable vesting date. ( 2 )The option was granted to Peter Svennilson, a director of the Issuer who is a managing partner of The Column Group II GP, LP ("TCG II GP"), Ponoi Management, LLC ("Ponoi LLC") and Ponoi II Management, LLC ("Ponoi II LLC"), which are the general partners of The Column Group II, LP ("TCG II LP"), Ponoi Capital, LP ("Ponoi LP") and Ponoi Capital II, LP ("Ponoi II LP," and, together with TCG II LP and Ponoi LP, the "Funds"), respectively. The managing partners of TCG II GP are David Goeddel and Peter Svennilson. The managing partners of Ponoi LLC and Ponoi II LLC are David Goeddel, Peter Svennilson and Tim Kutzkey. Under the partnership agreements of the Funds, Mr. Svennilson is deemed to hold the option for the economic benefit of the Funds. The reporting persons may be deemed indirect beneficial owners of the option. The reporting persons disclaim beneficial ownership of the option except to the extent of their pecuniary interest therein.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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