AI Holders Summary · Q2 2026

160 institutions reported SLDB in Q2 2026. RA CAPITAL MANAGEMENT, L.P. leads at 12.4% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

Hide index funds / market makers / custodians(2 on this page)

#HolderValueShares% port.Quarter

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$120M12.0M1.04%Q2 2026 02

Bain Capital Life Sciences Investors, LLC

CIK 0001703031

$98M9.8M5.83%Q2 2026 03

PERCEPTIVE ADVISORS LLC

CIK 0001224962

$86M11.9M1.68%Q1 2026 04

Siren, L.L.C.

CIK 0002005245

$77M7.7M1.55%Q2 2026 05

BlackRock, Inc.

CIK 0002012383

$69M6.9M0.00%Q2 2026 06

FMR LLC

CIK 0000315066

$69M6.9M0.00%Q2 2026 07

ARMISTICE CAPITAL, LLC

CIK 0001601086

$43M4.3M0.52%Q2 2026 08

STATE STREET CORP

CIK 0000093751

$42M4.2M0.00%Q2 2026 09

Jupiter Topco LLC

CIK 0002146052

$40M4.0M0.02%Q2 2026 10

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$40M4.0M0.00%Q2 2026 11

RTW INVESTMENTS, LP

CIK 0001493215

$39M3.9M0.33%Q2 2026 12

Vestal Point Capital, LP

CIK 0001974915

$36M5.0M1.01%Q1 2026 13

Deep Track Capital, LP

CIK 0001856083

$36M3.6M0.52%Q2 2026 14

FRANKLIN RESOURCES INC

CIK 0000038777

$34M3.4M0.01%Q2 2026 15

JANUS HENDERSON GROUP PLC

CIK 0001274173

$29M4.0M0.01%Q1 2026 16

CITADEL ADVISORS LLC

CIK 0001423053

$28M2.8M0.00%Q2 2026 17

Alyeska Investment Group, L.P.

CIK 0001453072

$23M2.3M0.06%Q2 2026 18

AMERIPRISE FINANCIAL INC

CIK 0000820027

$22M2.2M0.00%Q2 2026 19

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$19M1.9M0.00%Q2 2026 20

GOLDMAN SACHS GROUP INC

CIK 0000886982

$17M1.7M0.00%Q2 2026

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