Bain Capital Life Sciences Investors, Llc Portfolio Stock Holdings
According to the SEC 13F filed on August 14, 2026, Bain Capital Life Sciences Investors, Llc disclosed 20 stock positions valued at approximately $1.68B as of quarter-end June 30, 2026. The largest holdings include KAILERA THERAPEUTICS INC, HEARTFLOW INC, and NEWAMSTERDAM PHARMA COMPANY.
- Report Period
- June 30, 2026
- No. of Stocks
- 20
- Portfolio Value
- $1.68B
Holdings by Sector
Bain Capital Life Sciences Investors, Llc Portfolio Holdings in Q2 2026
| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| KAILERA THERAPEUTICS INC | KLRA | Healthcare | 29.58% | 22,583,268 | +22,583,268 | +100.00% | $497,509,394 |
| HEARTFLOW INC | HTFL | Healthcare | 14.74% | 8,448,158 | -2,000,000 | -19.14% | $247,868,956 |
| NEWAMSTERDAM PHARMA COMPANY | NAMSW | Other | 7.67% | 3,806,566 | -3,500,000 | -47.90% | $129,004,522 |
| SAVARA INC | SVRA | Healthcare | 6.45% | 17,600,621 | - | - | $108,419,826 |
| ALKERMES PLC | ALKS | Healthcare | 6.04% | 1,937,938 | +1,327,938 | +217.69% | $101,538,262 |
| SOLID BIOSCIENCES INC | SLDB | Healthcare | 5.83% | 9,808,819 | - | - | $97,990,102 |
| PHARVARIS N V | PHVS | Healthcare | 5.50% | 2,675,509 | - | - | $92,519,101 |
| OLEMA PHARMACEUTICALS INC | OLMA | Healthcare | 5.27% | 7,085,249 | -387,989 | -5.19% | $88,636,465 |
| HEMAB THERAPEUTICS HOLDINGS INC | COAG | Healthcare | 3.60% | 1,650,000 | +1,650,000 | +100.00% | $60,604,500 |
| CABALETTA BIO INC | CABA | Healthcare | 3.19% | 17,241,445 | +7,564,320 | +78.17% | $53,620,894 |
| X4 PHARMACEUTICALS INC | XFOR | Healthcare | 2.21% | 7,967,454 | - | - | $37,208,011 |
| DIANTHUS THERAPEUTICS INC | DNTH | Healthcare | 2.10% | 362,470 | - | - | $35,333,576 |
| C4 THERAPEUTICS INC | CCCC | Healthcare | 1.99% | 7,171,910 | - | - | $33,492,820 |
| KYVERNA THERAPEUTICS INC | KYTX | Healthcare | 1.53% | 2,885,000 | -225,000 | -7.23% | $25,705,350 |
| ANNEXON INC | ANNX | Healthcare | 1.51% | 4,437,731 | -774,943 | -14.87% | $25,339,444 |
| RAPID MICRO BIOSYSTEMS INC | RPID | Healthcare | 0.87% | 8,434,560 | - | - | $14,591,789 |
| DISC MEDICINE INC | IRON | Healthcare | 0.61% | 141,234 | - | - | $10,329,855 |
| ATEA PHARMACEUTICALS INC | AVIR | Healthcare | 0.57% | 2,075,639 | -284,999 | -12.07% | $9,651,721 |
| XILIO THERAPEUTICS INC | XLO | Healthcare | 0.38% | 664,021 | - | - | $6,361,322 |
| UPSTREAM BIO INC | UPB | Healthcare | 0.25% | 600,949 | -266,262 | -30.70% | $4,158,567 |
Showing 20 of 20 holdings in the latest reporting period.