X0407 4 2023-03-16 0 0001773427 SpringWorks Therapeutics, Inc. SWTX 0001702957 Schwartz Jeffrey Lawrence C/O BAIN CAPITAL LIFE SCIENCES INVESTORS 200 CLARENDON STREET BOSTON MA 02116 1 0 0 0 0 Common Stock 2023-03-16 4 S 0 1750000 28.50 D 3081307 I See footnote Common Stock 5924 D Consists of shares of common stock held directly by BC SW, LP. Bain Capital Life Sciences Investors, LLC ("BCLSI") is the general partner of BC SW, LP. Mr. Schwartz is a Partner of BCLSI. As a result, Mr. Schwartz may be deemed to share voting and dispositive power with respect to the shares of common stock held by BC SW, LP. Mr. Schwartz disclaims beneficial ownership of such securities except to the extent of his pecuniary interest therein. /s/ Jeffrey Schwartz 2023-03-20