Bain Capital Life Sciences Investors, LLC

CIK: 0001703031SEC EDGAR →

Portfolio Value

$1.3B

Holdings

19

As of

Q4 2025

New Positions

2

Closed Positions

3

Top 10 Holdings

RankStockSharesValue% of Portfolio
1
HTFL

HEARTFLOW INC

12,448,158$362.9M
27.79%
2
NAMS

NEWAMSTERDAM PHARMA COMPANY

7,306,566$256.3M
19.63%
3
OLMA

OLEMA PHARMACEUTICALS INC

8,508,641$212.7M
16.29%
4
YB4P

SAVARA INC

17,600,621$106.1M
8.13%
5
PHVS

PHARVARIS N V

2,802,081$77.8M
5.96%
6
SLDB

SOLID BIOSCIENCES INC

7,911,669$44.6M
3.42%
7
UPB

UPSTREAM BIO INC

1,329,544$36.1M
2.76%
8
XFOR

X4 PHARMACEUTICALS INC

7,967,454$31.9M
2.44%
9
DNTH

DIANTHUS THERAPEUTICS INC

743,592$30.6M
2.35%
10
KYTX

KYVERNA THERAPEUTICS INC

3,110,000$29.2M
2.24%

Quarterly Changes

Top Buys

OLMA↑ Increased
$145.7M
XFOR↑ Increased
$23.5M
CCCC↑ Increased
$11.2M
XLO↑ Increased
$871K

Top Sells

IPSCCLOSED
$1.8B
CDTXCLOSED
$289.3M
NAMS↓ Decreased
$48.5M
DNTH↓ Decreased
$21.1M
TNGX↓ Decreased
$17.0M

Closed Positions (2)

IPSC
$1.8B · 3.5M shares
CDTX
$289.3M · 3.0M shares

Sector Breakdown

Sector# HoldingsValue%
Healthcare17$1.2B91.1%
Unknown2$116.2M8.9%