Bain Capital Life Sciences Investors, LLC Top Holdings and 13F Report (2026) About Bain Capital Life Sciences Investors, LLCInvestment ActivityBain Capital Life Sciences Investors, LLC has $1.68 billion in total holdings as of June 30, 2026.Bain Capital Life Sciences Investors, LLC owns shares of 21 different stocks, but just 8 companies or ETFs make up 80% of its holdings.Approximately 38.72% of the portfolio was purchased this quarter.About 12.90% of the portfolio was sold this quarter.This quarter, Bain Capital Life Sciences Investors, LLC has purchased 20 new stocks and bought additional shares in 2 stocks.Bain Capital Life Sciences Investors, LLC sold shares of 7 stocks and completely divested from 1 stock this quarter.Largest Holdings KAILERA THERAPEUTICS INC $497,509,394HEARTFLOW INC $247,868,956NewAmsterdam Pharma $129,004,522Savara $108,419,826Alkermes $101,538,262 Largest New Holdings this Quarter 482931102 - KAILERA THERAPEUTICS INC $497,509,394 Holding423494103 - HEMAB THERAPEUTICS HOLDINGS INC $60,604,500 Holding Largest Purchases this Quarter KAILERA THERAPEUTICS INC 22,583,268 shares (about $497.51M)Alkermes 1,327,938 shares (about $69.58M)HEMAB THERAPEUTICS HOLDINGS INC 1,650,000 shares (about $60.60M)Cabaletta Bio 7,564,320 shares (about $23.53M) Largest Sales this Quarter NewAmsterdam Pharma 3,500,000 shares (about $118.62M)HEARTFLOW INC 2,000,000 shares (about $58.68M)Olema Pharmaceuticals 387,989 shares (about $4.85M)Annexon 774,943 shares (about $4.42M)KYVERNA THERAPEUTICS INC 225,000 shares (about $2.00M) Sector Allocation Over TimeMap of 500 Largest Holdings ofBain Capital Life Sciences Investors, LLC Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorKAILERA THERAPEUTICS INC$497,509,394$497,509,394 â–²New Holding22,583,26829.6%COMMON STOCKHEARTFLOW INC$247,868,956$58,680,000 â–¼-19.1%8,448,15814.7%COMNAMSNewAmsterdam Pharma$129,004,522$118,615,000 â–¼-47.9%3,806,5667.7%HealthcareSVRASavara$108,419,8260.0%17,600,6216.4%HealthcareALKSAlkermes$101,538,262$69,577,312 â–²217.7%1,937,9386.0%HealthcareSLDBSolid Biosciences$97,990,1020.0%9,808,8195.8%HealthcarePHVSPharvaris$92,519,1010.0%2,675,5095.5%HealthcareOLMAOlema Pharmaceuticals$88,636,465$4,853,742 â–¼-5.2%7,085,2495.3%HealthcareHEMAB THERAPEUTICS HOLDINGS INC$60,604,500$60,604,500 â–²New Holding1,650,0003.6%COM SHSCABACabaletta Bio$53,620,894$23,525,035 â–²78.2%17,241,4453.2%HealthcareX4 PHARMACEUTICALS INC$37,208,0110.0%7,967,4542.2%COM NEWDIANTHUS THERAPEUTICS INC$35,333,5760.0%362,4702.1%COMCCCCC4 Therapeutics$33,492,8200.0%7,171,9102.0%HealthcareKYVERNA THERAPEUTICS INC$25,705,350$2,004,750 â–¼-7.2%2,885,0001.5%COMANNXAnnexon$25,339,444$4,424,925 â–¼-14.9%4,437,7311.5%HealthcareRPIDRapid Micro Biosystems$14,591,7890.0%8,434,5600.9%HealthcareIRONDisc Medicine$10,329,8550.0%141,2340.6%HealthcareAVIRAtea Pharmaceuticals$9,651,721$1,325,245 â–¼-12.1%2,075,6390.6%HealthcareXILIO THERAPEUTICS INC$6,361,3220.0%664,0210.4%COMUPSTREAM BIO INC$4,158,567$1,842,533 â–¼-30.7%600,9490.2%COMNAMSWNewAmsterdam Pharma$2,136,9790.0%99,9990.1%HealthcareCNTACentessa Pharmaceuticals$0$25,222,200 â–¼-100.0%00.0%HealthcareShowing largest 100 holdings. 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