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* Bain Capital Life Sciences Investors, LLC (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol SpringWorks Therapeutics, Inc. [ SWTX ]	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) 09/17/2019
	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	09/17/2019		C		6,078,103	A	(1)	6,078,103	I	See Footnotes(4)(5)(6)
Common Stock	09/17/2019		C		1,053,204	A	(2)	7,131,307	I	See Footnotes(4)(5)(6)
Common Stock	09/17/2019		P		150,000(3)	A	$18	7,281,307	I	See Footnotes(4)(5)(6)

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
Series A Convertible Preferred Stock	(1)	09/17/2019		C			6,078,103	(1)	(1)	Common Stock	6,078,103	(1)	0	I	See Footnotes(4)(5)(6)
Series B Convertible Preferred Stock	(2)	09/17/2019		C			1,053,204	(2)	(2)	Common Stock	1,053,204	(2)	0	I	See Footnotes(4)(5)(6)

1. Name and Address of Reporting Person* Bain Capital Life Sciences Investors, LLC (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* BC SW, LP (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* Schwartz Jeffrey Lawrence (Last) (First) (Middle) C/O BAIN CAPITAL LIFE SCIENCES INVESTORS LLC, 200 CLARENDON STREET (Street) BOSTON MA 02116 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer X Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* Koppel Adam (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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. Each share of Series A Convertible Preferred Stock was convertible into shares of the Issuer's Common Stock on a 6.5810:1 basis. Upon the closing of the Issuer's initial public offering, all shares of Series A Convertible Preferred Stock automatically converted into shares of Common Stock of the Issuer. The Series A Convertible Preferred Stock had no expiration date.

2. Each share of Series B Convertible Preferred Stock was convertible into shares of the Issuer's Common Stock on a 6.5810:1 basis. Upon the closing of the Issuer's initial public offering, all shares of Series B Convertible Preferred Stock automatically converted into shares of Common Stock of the Issuer. The Series B Convertible Preferred Stock had no expiration date.

3. Represents shares purchased in the Issuer's initial public offering.

4. Represents shares held directly by BC SW, L.P.

5. Bain Capital Life Sciences Investors, LLC ("BCI LS"), whose managers are Jeffrey Schwartz and Adam Koppel, is the general partner of BC SW, L.P. As a result, each of BCI LS, Mr. Schwartz and Dr. Koppel may be deemed to share voting and dispositive power with respect to the securities held by BC SW, L.P. BCI LS, Mr. Schwartz and Dr. Koppel each disclaim beneficial ownership of such securities except to the extent of their pecuniary interest therein.

6. Jeffrey Schwartz is a director of the Issuer.

Remarks:

	Bain Capital Life Sciences Investors, LLC, By: /s/ Jeffery L. Schwartz, Name: Jeffery L. Schwartz, Title: Managing Director	09/19/2019
	BC SW, L.P., By: Bain Capital Life Sciences Investors, LLC, its general partner, By: /s/ Jeffery L. Schwartz, Name: Jeffery L. Schwartz, Title: Managing Director	09/19/2019
	/s/Jeffery L. Schwartz	09/19/2019
	/s/ Adam Koppel	09/19/2019
	** Signature of Reporting Person	Date
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