SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* COLUMN GROUP L P (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol CONSTELLATION PHARMACEUTICALS INC [ CNST ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 10/03/2019
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

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	10/03/2019		P		1,331,764(1)	A	$8.5	6,009,702	D(2)(3)(4)(5)
Common Stock	10/03/2019		P		80,000	A	$8.5	159,155	I(6)	See footnote

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 Securities Underlying Derivative Security (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: 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

1. Name and Address of Reporting Person* COLUMN GROUP L P (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* COLUMN GROUP GP, LP (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* PONOI CAPITAL, LP (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Ponoi Management, LLC (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Ponoi Capital II, LP (Last) (First) (Middle) 1700 OWENS STREET STE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Ponoi II Management, LLC (Last) (First) (Middle) 1700 OWENS STREET, SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GOEDDEL DAVID V (Last) (First) (Middle) C/O COLUMN GROUP LP 1700 OWENS STREET, SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Kutzkey Tim (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Svennilson Peter (Last) (First) (Middle) 1700 OWENS STREET SUITE 500 (Street) SAN FRANCISCO CA 94158 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Consists of 665,882 shares of common stock held directly by Ponoi Capital, LP and 665,882 shares of common stock held directly by Ponoi Capital II, LP.

2. Consists of 2,554,850 shares of common stock held directly by The Column Group, LP, 1,880,623 shares of common stock held directly by Ponoi Capital, LP and 1,574,229 shares of common stock held directly by Ponoi Capital II, LP. The reported number of shares held directly by Ponoi Capital, LP was decreased by one share to accurately match the issuer's records.

3. The securities are directly held by The Column Group, LP, and indirectly held by The Column Group GP, LP, the general partner of The Column Group, LP. The managing partners of The Column Group GP, LP are David Goeddel and Peter Svennilson. The managing partners of The Column Group GP, LP may be deemed to have voting and investment power with respect to such shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares.

4. The securities are directly held by Ponoi Capital, LP, and indirectly held by Ponoi Management, LLC, the general partner of Ponoi Capital, LP. The managing partners of Ponoi Management, LLC are David Goeddel, Peter Svennilson, and Tim Kutzkey. The managing partners of Ponoi Management, LLC may be deemed to have voting and investment power with respect to such shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares.

5. The securities are directly held by Ponoi Capital II, LP, and indirectly held by Ponoi II Management, LLC, the general partner of Ponoi Capital II, LP. The managing partners of Ponoi II Management, LLC are David Goeddel, Peter Svennilson, and Tim Kutzkey. The managing partners of Ponoi II Management, LLC may be deemed to have voting and investment power with respect to such shares. Each individual managing partner disclaims beneficial ownership of these shares, except to the extent of his pecuniary interest in such shares.

6. The securities are held directly by The David V. and Alena Z. Goeddel 2004 Trust.

	Jennifer J. Carlson, Attorney-in-Fact	10/07/2019
	** Signature of Reporting Person	Date
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