Bain Capital Life Sciences Investors, LLC
CIK 0001703031
Annualised vol
8.65346%
Beta
0.057017
HHI
1363.499159
Top-10 weight
87.85334%
VaR 95%
0.785909%
VaR 99%
1.888112%
Max drawdown
27.801085%
Matched value
90.102678%
Returns of reported holdings
Loading returns…
Position changes vs prior quarter
What the latest 13F shows bought and sold against the quarter before, by share count.
| Ticker | Change | Shares now | Shares before | Share change % | Value now ($) |
|---|---|---|---|---|---|
| KLRA | NEW | 22,583,268 | - | - | 497,509,394 |
| HTFL | REDUCED | 8,448,158 | 10,448,158 | -19.14% | 247,868,956 |
| SVRA | UNCHANGED | 17,600,621 | 17,600,621 | 0.0% | 108,419,826 |
| ALKS | ADDED | 1,937,938 | 610,000 | 217.69% | 101,538,262 |
| SLDB | UNCHANGED | 9,808,819 | 9,808,819 | 0.0% | 97,990,102 |
| PHVS | UNCHANGED | 2,675,509 | 2,675,509 | 0.0% | 92,519,101 |
| OLMA | REDUCED | 7,085,249 | 7,473,238 | -5.19% | 88,636,465 |
| COAG | NEW | 1,650,000 | - | - | 60,604,500 |
| CABA | ADDED | 17,241,445 | 9,677,125 | 78.17% | 53,620,894 |
| XFOR | UNCHANGED | 7,967,454 | 7,967,454 | 0.0% | 37,208,011 |
| CCCC | UNCHANGED | 7,171,910 | 7,171,910 | 0.0% | 33,492,820 |
| KYTX | REDUCED | 2,885,000 | 3,110,000 | -7.23% | 25,705,350 |
| ANNX | REDUCED | 4,437,731 | 5,212,674 | -14.87% | 25,339,444 |
| RPID | UNCHANGED | 8,434,560 | 8,434,560 | 0.0% | 14,591,789 |
| IRON | UNCHANGED | 141,234 | 141,234 | 0.0% | 10,329,855 |
| AVIR | REDUCED | 2,075,639 | 2,360,638 | -12.07% | 9,651,721 |
| XLO | UNCHANGED | 664,021 | 664,021 | 0.0% | 6,361,322 |
| UPB | REDUCED | 600,949 | 867,211 | -30.7% | 4,158,567 |
Holdings (latest quarter)
| Ticker | Change | Issuer | Class | CUSIP | Value ($) | Weight % | Shares |
|---|---|---|---|---|---|---|---|
| KLRA | NEW | KAILERA THERAPEUTICS INC | COMMON STOCK | 482931102 | 497,509,394 | 29.58 | 2.2583268E7 |
| HTFL | REDUCED | HEARTFLOW INC | COM | 42238D107 | 247,868,956 | 14.74 | 8448158.0 |
| - | NEWAMSTERDAM PHARMA COMPANY | ORDINARY SHARES | N62509109 | 129,004,522 | 7.67 | 3806566.0 | |
| SVRA | UNCHANGED | SAVARA INC | COM | 805111101 | 108,419,826 | 6.45 | 1.7600621E7 |
| ALKS | ADDED | ALKERMES PLC | SHS | G01767105 | 101,538,262 | 6.04 | 1937938.0 |
| SLDB | UNCHANGED | SOLID BIOSCIENCES INC | COM NEW | 83422E204 | 97,990,102 | 5.83 | 9808819.0 |
| PHVS | UNCHANGED | PHARVARIS N V | COM | N69605108 | 92,519,101 | 5.5 | 2675509.0 |
| OLMA | REDUCED | OLEMA PHARMACEUTICALS INC | COM | 68062P106 | 88,636,465 | 5.27 | 7085249.0 |
| COAG | NEW | HEMAB THERAPEUTICS HOLDINGS INC | COM SHS | 423494103 | 60,604,500 | 3.6 | 1650000.0 |
| CABA | ADDED | CABALETTA BIO INC | COM | 12674W109 | 53,620,894 | 3.19 | 1.7241445E7 |
| XFOR | UNCHANGED | X4 PHARMACEUTICALS INC | COM NEW | 98420X202 | 37,208,011 | 2.21 | 7967454.0 |
| - | DIANTHUS THERAPEUTICS INC | COM | 252828108 | 35,333,576 | 2.1 | 362470.0 | |
| CCCC | UNCHANGED | C4 THERAPEUTICS INC | COM STK | 12529R107 | 33,492,820 | 1.99 | 7171910.0 |
| KYTX | REDUCED | KYVERNA THERAPEUTICS INC | COM | 501976104 | 25,705,350 | 1.53 | 2885000.0 |
| ANNX | REDUCED | ANNEXON INC | COM | 03589W102 | 25,339,444 | 1.51 | 4437731.0 |
| RPID | UNCHANGED | RAPID MICRO BIOSYSTEMS INC | CLASS A COM | 75340L104 | 14,591,789 | 0.87 | 8434560.0 |
| IRON | UNCHANGED | DISC MEDICINE INC | COM | 254604101 | 10,329,855 | 0.61 | 141234.0 |
| AVIR | REDUCED | ATEA PHARMACEUTICALS INC | COM | 04683R106 | 9,651,721 | 0.57 | 2075639.0 |
| XLO | UNCHANGED | XILIO THERAPEUTICS INC | COM | 98422T209 | 6,361,322 | 0.38 | 664021.0 |
| UPB | REDUCED | UPSTREAM BIO INC | COM | 91678A107 | 4,158,567 | 0.25 | 600949.0 |
| - | NEWAMSTERDAM PHARMA COMPANY | *W EXP 99/99/999 | N62509117 | 2,136,979 | 0.13 | 99999.0 |
Quarterly portfolios
| Period | Filed | Value ($) | Positions | Vol % | Beta | Max DD % |
|---|---|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | 1,682,021,456 | 21 | 8.65346 | 0.057017 | 27.801085 |
| 2026-03-31 | 2026-05-15 | 1,108,816,309 | 20 | 10.403647 | 0.069578 | 34.233124 |
| 2025-12-31 | 2026-02-17 | 1,305,660,829 | 19 | 11.426814 | 0.065971 | 36.425272 |
| 2025-09-30 | 2025-11-14 | 1,506,676,329 | 21 | 8.156463 | 0.045467 | 21.6673 |
| 2025-03-31 | 2025-05-15 | 675,912,941 | 24 | 6.596525 | 0.049739 | 23.988907 |
| 2024-12-31 | 2025-02-14 | 850,096,624 | 26 | 6.438051 | 0.047555 | 25.509795 |