0000950123-23-008184.txt : 20230814 0000950123-23-008184.hdr.sgml : 20230814 20230814163115 ACCESSION NUMBER: 0000950123-23-008184 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20230630 FILED AS OF DATE: 20230814 DATE AS OF CHANGE: 20230814 EFFECTIVENESS DATE: 20230814 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Bain Capital Life Sciences Investors, LLC CENTRAL INDEX KEY: 0001703031 IRS NUMBER: 813996001 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-18477 FILM NUMBER: 231171027 BUSINESS ADDRESS: STREET 1: 200 CLARENDON STREET CITY: BOSTON STATE: MA ZIP: 02116 BUSINESS PHONE: 6175162878 MAIL ADDRESS: STREET 1: 200 CLARENDON STREET CITY: BOSTON STATE: MA ZIP: 02116 13F-HR 1 primary_doc.xml X0202 13F-HR LIVE 0001703031 XXXXXXXX 06-30-2023 06-30-2023 false Bain Capital Life Sciences Investors, LLC

200 Clarendon Street Boston MA 02116

13F HOLDINGS REPORT 028-18477 Y Bain Capital Life Sciences Investors, LLC is (i) the general partner of Bain Capital Life Sciences Partners, LP, which is the general partner of Bain Capital Life Sciences Fund, L.P., (ii) the general partner of BC SW, LP, (iii) the manager of Bain Capital Life Sciences Investors II, LLC, which is the general partner of Bain Capital Life Sciences Fund II, L.P., which is the manager of BCLS II Investco (GP), LLC, which is the general partner of BCLS II Investco, LP, and (iv) the manager of Bain Capital Life Sciences III General Partner, LLC, which is the general partner of Bain Capital Life Sciences Fund III, L.P., which is the sole member of Bain Capital Life Sciences Opportunities III GP, LLC, which is the general partner of Bain Capital Life Sciences Opportunities III, LP. The shares of Disc Medicine, Inc. ("IRON") reflect the exercise of securities held by Bain Capital Life Sciences Opportunities III, LP for IRON common stock. As of 6/30/23, such person held 103,324 shares of IRON common stock. The shares of Savara Inc. ("SVRA") are as reported on Amendment No. 1 to the Schedule 13D filed by Bain Capital Life Sciences Fund II, L.P. and BCIP Life Sciences Associates, LP on 3/17/21 and reflect the exercise of securities held by such persons for SVRA common stock, after giving effect to provisions that prevent exercise if such persons would beneficially own more than 9.99% of the SVRA common stock following such exercise. As of 6/30/23, such persons held 6,913,208 shares of SVRA common stock. The shares of Syros Pharmaceuticals, Inc. ("SYRS") are as reported on Amendment No. 2 to the Schedule 13G filed by Bain Capital Life Sciences Fund II, L.P., BCIP Life Sciences Associates, LP and BCLS II Equity Opportunities, LP on 2/14/23 and reflect the exercise of securities held by such persons for SYRS common stock, after giving effect to provisions that prevent exercise if such persons would beneficially own more than 9.99% of the SYRS common stock following such exercise. As of 6/30/23, such persons held 1,082,404 shares of SYRS common stock. The shares of X4 Pharmaceuticals, Inc. ("XFOR") reflect the exercise of securities held by Bain Capital Life Sciences Fund, L.P., Bain Capital Life Sciences Fund II, L.P., BCIP Life Sciences Associates, LP, BCLS II Investco, LP and BCLS I Investco, LP for XFOR common stock, after giving effect to provisions the prevent exercise if such persons would beneficially own more than 9.99% of the XFOR common stock following such exercise. As of 6/30/23, such persons held 14,879,809 shares of XFOR common stock. Adam Koppel 617-516-2000 /s/ Adam Koppel Boston MA 08-14-2023 11 32 970993636 false 1 28-18476 Bain Capital Life Sciences Partners, LP 2 28-18478 Bain Capital Life Sciences Fund, L.P. 3 28-20270 BC SW, LP 4 28-20816 Bain Capital Life Sciences Investors II, LLC 5 28-20814 Bain Capital Life Sciences Fund II, L.P. 6 28-22976 BCLS II Investco (GP), LLC 7 28-22978 BCLS II Investco, LP 8 28-22975 Bain Capital Life Sciences III General Partner, LLC 9 28-22979 Bain Capital Life Sciences Fund III, L.P. 10 28-22968 Bain Capital Life Sciences Opportunities III GP, LLC 11 28-22966 Bain Capital Life Sciences Opportunities III, LP INFORMATION TABLE 2 25319.xml INFORMATION TABLE FOR FORM 13F 2SEVENTY BIO INC COMMON STOCK 901384107 14258078 1408901 SH SOLE 1408901 0 0 ACLARIS THERAPEUTICS INC COM 00461U105 35258000 3400000 SH SOLE 3400000 0 0 ANNEXON INC COM 03589W102 20070780 5701926 SH SOLE 5701926 0 0 ARCUTIS BIOTHERAPEUTICS INC COM 03969K108 28590000 3000000 SH SOLE 3000000 0 0 ATEA PHARMACEUTICALS INC COM 04683R106 9296286 2485638 SH SOLE 2485638 0 0 C4 THERAPEUTICS INC COM STK 12529R107 4516078 1642210 SH SOLE 1642210 0 0 CABALETTA BIO INC COM 12674W109 25820000 2000000 SH SOLE 2000000 0 0 CARA THERAPEUTICS INC COM 140755109 2645761 934898 SH SOLE 934898 0 0 CRINETICS PHARMACEUTICALS IN COM 22663K107 41546155 2305558 SH SOLE 2305558 0 0 CYMABAY THERAPEUTICS INC COM 23257D103 27375000 2500000 SH SOLE 2500000 0 0 DISC MEDICINE INC COM 254604101 59165131 1332548 SH SOLE 1332548 0 0 DYNAVAX TECHNOLOGIES CORP COM NEW 268158201 31201800 2415000 SH SOLE 2415000 0 0 EQRX INC COM 26886C107 18606646 10003573 SH SOLE 10003573 0 0 INVIVYD INC COM 00534A102 2034067 1937207 SH SOLE 1937207 0 0 MARINUS PHARMACEUTICALS INC COM NEW 56854Q200 15541290 1431058 SH SOLE 1431058 0 0 MERSANA THERAPEUTICS INC COM 59045L106 28503484 8663673 SH SOLE 8663673 0 0 NATERA INC COM 632307104 34071586 700197 SH SOLE 700197 0 0 NAUTILUS BIOTECHNOLOGY INC COM 63909J108 7740000 2000000 SH SOLE 2000000 0 0 NEWAMSTERDAM PHARMA COMPANY ORDINARY SHARES N62509109 124534826 10473913 SH SOLE 10473913 0 0 NEWAMSTERDAM PHARMA COMPANY *W EXP 11/22/202 N62509117 209000 100000 SH SOLE 100000 0 0 NURIX THERAPEUTICS INC COM 67080M103 18210601 1822883 SH SOLE 1822883 0 0 NUVALENT INC COM 670703107 150853349 3577267 SH SOLE 3577267 0 0 PHARVARIS N V COM N69605108 73713390 4868784 SH SOLE 4868784 0 0 RAPID MICRO BIOSYSTEMS INC CLASS A COM 75340L104 8434560 8434560 SH SOLE 8434560 0 0 SAVARA INC COM 805111101 37134201 11622598 SH SOLE 11622598 0 0 SOLID BIOSCIENCES INC COM NEW 83422E204 16403411 3130422 SH SOLE 3130422 0 0 SPRINGWORKS THERAPEUTICS INC COM 85205L107 80791870 3081307 SH SOLE 3081307 0 0 SYROS PHARMACEUTICALS INC COM NEW 87184Q206 6692786 2124694 SH SOLE 2124694 0 0 TANGO THERAPEUTICS INC COM 87583X109 6380343 1921790 SH SOLE 1921790 0 0 THIRD HARMONIC BIO INC COM 88427A107 3081435 640631 SH SOLE 640631 0 0 X4 PHARMACEUTICALS INC COM 98420X103 30963541 15960588 SH SOLE 15960588 0 0 XILIO THERAPEUTICS INC COM 98422T100 7350182 2805413 SH SOLE 2805413 0 0