☆Bain Capital Life Sciences Investors, LLC
Quality Q
0.468
AUM ($M)
1,682
Positions
21
Turnover
0.38
Top-10 wt
88%
Herfindahl
0.136
History (qtrs)
6
Excess Return
—
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Holdings · 22 positions · portfolio value $1,682M
| Ticker | Name | Activity | Security Type | Weight | Δ Weight | Value ($M) | Shares | Δ Shares | Qtrs Held | Excess Return |
|---|---|---|---|---|---|---|---|---|---|---|
| ☆KLRA funds › | KAILERA THERAPEUTICS INC | NEW | — | 29.6% | +29.6% | 497.5 | 22,583,268 | +22,583,268 | 1 | — |
| ☆HTFL funds › | HEARTFLOW INC | TRIM | — | 14.7% | -8.2% | 247.9 | 8,448,158 | -2,000,000 | 4 | — |
| ☆NAMS funds › | NEWAMSTERDAM PHARMA COMPANY | TRIM | — | 7.7% | -13.4% | 129.0 | 3,806,566 | -3,500,000 | 5 | — |
| ☆SVRA funds › | SAVARA INC | HOLD | — | 6.4% | -2.2% | 108.4 | 17,600,621 | +0 | 5 | — |
| ☆ALKS funds › | ALKERMES PLC | ADD | — | 6.0% | +4.1% | 101.5 | 1,937,938 | +1,327,938 | 2 | — |
| ☆SLDB funds › | SOLID BIOSCIENCES INC | HOLD | — | 5.8% | -0.5% | 98.0 | 9,808,819 | +0 | 5 | — |
| ☆PHVS funds › | PHARVARIS N V | HOLD | — | 5.5% | -1.3% | 92.5 | 2,675,509 | +0 | 5 | — |
| ☆OLMA funds › | OLEMA PHARMACEUTICALS INC | TRIM | — | 5.3% | -4.8% | 88.6 | 7,085,249 | -387,989 | 5 | — |
| ☆COAG funds › | HEMAB THERAPEUTICS HOLDINGS INC | NEW | — | 3.6% | +3.6% | 60.6 | 1,650,000 | +1,650,000 | 1 | — |
| ☆CABA funds › | CABALETTA BIO INC | ADD | — | 3.2% | +0.8% | 53.6 | 17,241,445 | +7,564,320 | 5 | — |
| ☆XFOR funds › | X4 PHARMACEUTICALS INC | HOLD | — | 2.2% | -0.8% | 37.2 | 7,967,454 | +0 | 5 | — |
| ☆DNTH funds › | DIANTHUS THERAPEUTICS INC | HOLD | — | 2.1% | -0.6% | 35.3 | 362,470 | +0 | 5 | — |
| ☆CCCC funds › | C4 THERAPEUTICS INC | HOLD | — | 2.0% | +0.3% | 33.5 | 7,171,910 | +0 | 5 | — |
| ☆KYTX funds › | KYVERNA THERAPEUTICS INC | TRIM | — | 1.5% | -0.9% | 25.7 | 2,885,000 | -225,000 | 5 | — |
| ☆ANNX funds › | ANNEXON INC | TRIM | — | 1.5% | -1.1% | 25.3 | 4,437,731 | -774,943 | 5 | — |
| ☆RPID funds › | RAPID MICRO BIOSYSTEMS INC | HOLD | — | 0.9% | -0.9% | 14.6 | 8,434,560 | +0 | 5 | — |
| ☆IRON funds › | DISC MEDICINE INC | HOLD | — | 0.6% | -0.2% | 10.3 | 141,234 | +0 | 2 | — |
| ☆AVIR funds › | ATEA PHARMACEUTICALS INC | TRIM | — | 0.6% | -0.6% | 9.7 | 2,075,639 | -284,999 | 5 | — |
| ☆XLO funds › | XILIO THERAPEUTICS INC | HOLD | — | 0.4% | -0.1% | 6.4 | 664,021 | +0 | 2 | — |
| ☆UPB funds › | UPSTREAM BIO INC | TRIM | — | 0.2% | -0.5% | 4.2 | 600,949 | -266,262 | 5 | — |
| ☆CUSIP:N62509117 funds › | NEWAMSTERDAM PHARMA COMPANY | HOLD | — | 0.1% | -0.1% | 2.1 | 99,999 | +0 | 5 | — |
| ☆CUSIP:152309100 funds › | CENTESSA PHARMACEUTICALS | EXIT | — | 0.0% | -2.3% | 0.0 | 0 | -635,000 | 0 | — |
Point-in-time history
| Period | AUM ($M) | Positions | Turnover | Top-10 wt | Herfindahl | Quality Q | Skill | Universe |
|---|---|---|---|---|---|---|---|---|
| 2026Q2 | 1,682 | 21 | 0.38 | 88% | 0.136 | 0.467 | — | in |
| 2026Q1 | 1,109 | 20 | 0.15 | 87% | 0.129 | 0.833 | — | in |
| 2025Q4 | 1,306 | 19 | 0.22 | 91% | 0.157 | 0.741 | — | in |
| 2025Q3 | 1,507 | 21 | 0.33 | 93% | 0.166 | 0.582 | — | in |
| 2025Q2 | 799 | 23 | 0.18 | 87% | 0.121 | 0.758 | — | entered |
| 2025Q1 | 676 | 24 | 0.00 | 91% | 0.156 | 0.000 | — | out |
Long US-equity 13F disclosures only · up to 45-day reporting lag · sells = reduce/avoid, not short.
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