SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Omega Fund V, L.P. (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 10/08/2020	3. Issuer Name and Ticker or Trading Symbol Kronos Bio, Inc. [ KRON ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	19,451	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Series Seed Preferred Stock	(2)	(2)	Common Stock	1,606,220	(2)	D(1)
Series A Preferred Stock	(2)	(2)	Common Stock	1,376,313	(2)	D(1)
Convertible Promissory Note	(3)	02/20/2020	Common Stock	366,299	16.15	D(1)

1. Name and Address of Reporting Person* Omega Fund V, L.P. (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

1. Name and Address of Reporting Person* Omega Fund V GP, L.P. (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

1. Name and Address of Reporting Person* Omega Fund V GP Manager, Ltd. (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

1. Name and Address of Reporting Person* Paster Anne-Mari (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

1. Name and Address of Reporting Person* Nessi Claudio (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

1. Name and Address of Reporting Person* Stampacchia Otello (Last) (First) (Middle) 888 BOYLSTON ST. SUITE 1111 (Street) BOSTON MA 02199 (City) (State) (Zip)

Explanation of Responses:

1. Otello Stampacchia, a director of the Issuer, Claudio Nessi and Anne-Mari Paster are the directors of Omega Fund V GP Manager, Ltd. ("Omega Manager"), which is the sole general partner of Omega Fund V GP, L.P. ("Omega GP"), which is the sole general partner of Omega Fund V, L.P. ("Omega L.P."). Such individuals may be deemed to share voting and dispositive power over the shares held by Omega L.P. Such individuals, together with Omega GP and Omega Manager, disclaim beneficial ownership of the shares held by Omega L.P. except to the extent of their respective pecuniary interests therein.

2. Each share of Series Seed Preferred Stock and Series A Preferred Stock (the "Preferred Stock") is convertible into 1.055 shares of Common Stock. The Preferred Stock has no expiration date.

3. The convertible promissory note will automatically convert into shares of the Issuer's common stock upon the closing of the Issuer's first firm commitment underwritten initial public offering.

Remarks:

	Omega Fund V, L.P., by Omega Fund V GP, L.P., its general partner, by Omega Fund V GP Manager, Ltd., its general partner, /s/ Anne-Mari Paster, Director	10/08/2020
	Omega Fund V GP, L.P., by Omega Fund V GP Manager, Ltd., its general partner, /s/ Anne-Mari Paster, Director	10/08/2020
	Omega Fund V GP Manager, Ltd., /s/ Anne-Mari Paster, Director	10/08/2020
	/s/ Anne-Mari Paster	10/08/2020
	/s/ Claudio Nessi	10/08/2020
	/s/ Otello Stampacchia	10/08/2020
	** Signature of Reporting Person	Date
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