AI Holders Summary · Q1 2026

95 institutions reported DRUG in Q1 2026. JANUS HENDERSON GROUP PLC leads at 16.8% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(1 on this page)

#HolderValueShares% port.Quarter

JANUS HENDERSON GROUP PLC

CIK 0001274173

$94M1.3M0.04%Q1 2026 02

Cormorant Asset Management, LP

CIK 0001583977

$77M1.1M3.88%Q1 2026 03

BlackRock, Inc.

CIK 0002012383

$45M622K0.00%Q1 2026 04

Vivo Capital, LLC

CIK 0001674712

$41M557K3.38%Q1 2026 05

BRAIDWELL LP

CIK 0001920938

$39M540K1.31%Q1 2026 06

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$36M496K0.06%Q1 2026 07

Vestal Point Capital, LP

CIK 0001974915

$36M492K1.00%Q1 2026 08

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 0000938206

$32M433K0.23%Q1 2026 09

PERCEPTIVE ADVISORS LLC

CIK 0001224962

$28M378K0.54%Q1 2026 10

BALYASNY ASSET MANAGEMENT L.P.

CIK 0001218710

$22M297K0.03%Q1 2026 11

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$19M265K0.20%Q1 2026 12

MPM BioImpact LLC

CIK 0001687078

$15M212K1.20%Q1 2026 13

Ikarian Capital, LLC

CIK 0001778253

$12M167K0.99%Q1 2026 14

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$10M137K0.00%Q1 2026 15

MORGAN STANLEY

CIK 0000895421

$10M133K0.00%Q1 2026 16

EVENTIDE ASSET MANAGEMENT, LLC

CIK 0001442891

$9M130K0.16%Q1 2026 17

SEVEN GRAND MANAGERS, LLC

CIK 0001909126

$9M120K0.59%Q1 2026 18

ACUTA CAPITAL PARTNERS, LLC

CIK 0001582844

$8M112K5.76%Q1 2026 19

STATE STREET CORP

CIK 0000093751

$8M108K0.00%Q1 2026 20

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$6M89K0.00%Q1 2026

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