DOSSIER · 13F-HR · Q1 2026

Bain Capital Life Sciences Investors, LLC

Bain Life Sciences Investors's pension fund based in Boston, MA $1.1B in tracked AUM across 20 positions as of Q1 2026.

BL
Bain Life Sciences Investors·Boston, MA·Pension Fund
CIK 0001703031 · last filed Mar 31, 2026
Total AUM
$1.1B
8.6%
vs prior
Holdings
20
positions
Whale Score
79
79
strong
Activity
no data
changes this Q
Top sector
Tech
7% weight
concentration
AI Analysis · Q1 2026 · Q1 2026
Comprehensive Analysis of Bain Capital Life Sciences Investors, LLC (SEC 13F)
1. Portfolio Overview

Bain Capital Life Sciences Investors, LLC manages a highly concentrated, high-conviction portfolio totaling approximately $1.03 billion as of the reporting period ending September 30, 2025. The fund executed a significant strategic pivot during the quarter, reducing the total number of holdings from the previous quarter's count (implied to be ~25 based on activity) down to **16 current p...

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
HTFL
HEARTFLOW INC
$254M10.4M22.9%
02
N62509109
NEWAMSTERDAM PHARMA COMPANY
$234M7.3M21.1%
03
OLMA
OLEMA PHARMACEUTICALS INC
$111M7.5M10.0%
04
SVRA
SAVARA INC
$96M17.6M8.7%
05
N69605108
PHARVARIS N V
$76M2.7M6.8%
06
SLDB
SOLID BIOSCIENCES INC
$71M9.8M6.4%
07
XFOR
X4 PHARMACEUTICALS INC
$33M8.0M3.0%
08
DNTH
DIANTHUS THERAPEUTICS INC
$30M362K2.7%
09
ANNX
ANNEXON INC
$29M5.2M2.6%
10
KYTX
KYVERNA THERAPEUTICS INC
$27M3.1M2.4%

Filing history

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