Bain Capital Life Sciences Investors, LLC Long-Term Concentrated

CIK: 0001703031 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Nov 14, 2025

Total Value ($000): $1,506,676 (100.0% shares, 0.0% debt)

Holdings (21)

HTFL HEARTFLOW INC 27.8%

Value ($000) $419,005 Shares 12,448,158 Est. Cost $32.24 Unrealized 0.0%

NAMS NEWAMSTERDAM PHARMA COMPANY 20.2%

Value ($000) $304,851 Shares 10,719,110 Est. Cost $10.88 Unrealized +120.3%

— CIDARA THERAPEUTICS INC 19.2%

Value ($000) $289,290 Shares 3,020,990 Est. Cost $47.98 Unrealized —

PHVS PHARVARIS N V 5.3%

Value ($000) $79,373 Shares 3,181,275 Est. Cost $23.89 Unrealized -7.2%

OLMA OLEMA PHARMACEUTICALS INC 4.4%

Value ($000) $67,002 Shares 6,843,954 Est. Cost $9.99 Unrealized -39.9%

SVRA SAVARA INC 4.2%

Value ($000) $62,834 Shares 17,600,621 Est. Cost $2.08 Unrealized +42.3%

DNTH DIANTHUS THERAPEUTICS INC 3.4%

Value ($000) $51,780 Shares 1,315,892 Est. Cost $21.73 Unrealized +17.6%

SLDB SOLID BIOSCIENCES INC 3.2%

Value ($000) $48,815 Shares 7,911,669 Est. Cost $5.76 Unrealized +1.5%

UPB UPSTREAM BIO INC 3.0%

Value ($000) $45,888 Shares 2,439,538 Est. Cost $21.55 Unrealized -27.9%

RPID RAPID MICRO BIOSYSTEMS INC 1.9%

Value ($000) $28,171 Shares 8,434,560 Est. Cost $20.66 Unrealized -84.7%

TNGX TANGO THERAPEUTICS INC 1.5%

Value ($000) $22,781 Shares 2,712,008 Est. Cost $10.01 Unrealized -32.4%

CABA CABALETTA BIO INC 1.5%

Value ($000) $22,644 Shares 9,677,125 Est. Cost $3.63 Unrealized -52.8%

KYTX KYVERNA THERAPEUTICS INC 1.3%

Value ($000) $20,210 Shares 3,368,370 Est. Cost $27.08 Unrealized -85.2%

ANNX ANNEXON INC 1.1%

Value ($000) $16,010 Shares 5,249,069 Est. Cost $11.24 Unrealized -77.9%

XFOR X4 PHARMACEUTICALS INC 0.6%

Value ($000) $8,333 Shares 2,436,588 Est. Cost $2.93 Unrealized -12.0%

AVIR ATEA PHARMACEUTICALS INC 0.5%

Value ($000) $7,208 Shares 2,485,638 Est. Cost $32.23 Unrealized -89.4%

XLO XILIO THERAPEUTICS INC 0.3%

Value ($000) $3,848 Shares 4,566,817 Est. Cost $10.85 Unrealized -93.4%

— MERSANA THERAPEUTICS INC 0.2%

Value ($000) $2,689 Shares 346,545 Est. Cost $7.76 Unrealized —

CCCC C4 THERAPEUTICS INC 0.2%

Value ($000) $2,468 Shares 1,111,910 Est. Cost $29.00 Unrealized -91.7%

IPSC CENTURY THERAPEUTICS INC 0.1%

Value ($000) $1,762 Shares 3,538,609 Est. Cost $3.16 Unrealized -82.9%

NAMSW NEWAMSTERDAM PHARMA COMPANY 0.1%

Value ($000) $1,711 Shares 100,000 Est. Cost $0.00 Unrealized —

Ticker	Issuer	Shares	Value ($000)	%	Est. Cost	Unrealized	Class	CUSIP
HTFL	HEARTFLOW INC	12,448,158	$419,005	27.8%	$32.24	0.0%	COM	42238D107
NAMS	NEWAMSTERDAM PHARMA COMPANY	10,719,110	$304,851	20.2%	$10.88	+120.3%	ORDINARY SHARES	N62509109
—	CIDARA THERAPEUTICS INC	3,020,990	$289,290	19.2%	$47.98	—	COM NEW	171757206
PHVS	PHARVARIS N V	3,181,275	$79,373	5.3%	$23.89	-7.2%	COM	N69605108
OLMA	OLEMA PHARMACEUTICALS INC	6,843,954	$67,002	4.4%	$9.99	-39.9%	COM	68062P106
SVRA	SAVARA INC	17,600,621	$62,834	4.2%	$2.08	+42.3%	COM	805111101
DNTH	DIANTHUS THERAPEUTICS INC	1,315,892	$51,780	3.4%	$21.73	+17.6%	COM	252828108
SLDB	SOLID BIOSCIENCES INC	7,911,669	$48,815	3.2%	$5.76	+1.5%	COM NEW	83422E204
UPB	UPSTREAM BIO INC	2,439,538	$45,888	3.0%	$21.55	-27.9%	COM	91678A107
RPID	RAPID MICRO BIOSYSTEMS INC	8,434,560	$28,171	1.9%	$20.66	-84.7%	CLASS A COM	75340L104
TNGX	TANGO THERAPEUTICS INC	2,712,008	$22,781	1.5%	$10.01	-32.4%	COM	87583X109
CABA	CABALETTA BIO INC	9,677,125	$22,644	1.5%	$3.63	-52.8%	COM	12674W109
KYTX	KYVERNA THERAPEUTICS INC	3,368,370	$20,210	1.3%	$27.08	-85.2%	COM	501976104
ANNX	ANNEXON INC	5,249,069	$16,010	1.1%	$11.24	-77.9%	COM	03589W102
XFOR	X4 PHARMACEUTICALS INC	2,436,588	$8,333	0.6%	$2.93	-12.0%	COM NEW	98420X202
AVIR	ATEA PHARMACEUTICALS INC	2,485,638	$7,208	0.5%	$32.23	-89.4%	COM	04683R106
XLO	XILIO THERAPEUTICS INC	4,566,817	$3,848	0.3%	$10.85	-93.4%	COM	98422T100
—	MERSANA THERAPEUTICS INC	346,545	$2,689	0.2%	$7.76	—	COM	59045L205
CCCC	C4 THERAPEUTICS INC	1,111,910	$2,468	0.2%	$29.00	-91.7%	COM STK	12529R107
IPSC	CENTURY THERAPEUTICS INC	3,538,609	$1,762	0.1%	$3.16	-82.9%	COM	15673T100
NAMSW	NEWAMSTERDAM PHARMA COMPANY	100,000	$1,711	0.1%	$0.00	—	*W EXP 99/99/999	N62509117