AI Holders Summary · Q1 2026

80 institutions reported FBRX in Q1 2026. FEDERATED HERMES, INC. leads at 13.3% 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

FEDERATED HERMES, INC.

CIK 0001056288

$46M1.8M0.07%Q1 2026 02

FRED ALGER MANAGEMENT, LLC

CIK 0000003520

$33M1.3M0.14%Q1 2026 03

ORBIMED ADVISORS LLC

CIK 0001055951

$31M1.2M0.62%Q1 2026 04

JANUS HENDERSON GROUP PLC

CIK 0001274173

$31M1.2M0.01%Q1 2026 05

Affinity Asset Advisors, LLC

CIK 0001773195

$26M1.0M1.35%Q1 2026 06

BlackRock, Inc.

CIK 0002012383

$26M1.2M0.00%Q2 2026 07

MPM BioImpact LLC

CIK 0001687078

$26M1.0M2.00%Q1 2026 08

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$25M950K0.04%Q1 2026 09

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$14M532K0.00%Q1 2026 10

MORGAN STANLEY

CIK 0000895421

$13M500K0.00%Q1 2026 11

TYBOURNE CAPITAL MANAGEMENT (HK) LTD

CIK 0001553936

$12M787K38.15%Q3 2025 12

Cable Car Capital, LP

CIK 0001699575

$10M400K3.58%Q1 2026 13

FMR LLC

CIK 0000315066

$9M341K0.00%Q1 2026 14

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$9M338K0.00%Q1 2026 15

Woodline Partners LP

CIK 0001784547

$9M332K0.03%Q1 2026 16

STATE STREET CORP

CIK 0000093751

$7M329K0.00%Q2 2026 17

AWM Investment Company, Inc.

CIK 0001535264

$5M200K0.57%Q1 2026 18

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$5M191K0.00%Q1 2026 19

SPHERA FUNDS MANAGEMENT LTD.

CIK 0001496201

$5M185K0.76%Q1 2026 20

Integral Health Asset Management, LLC

CIK 0001773206

$4M150K0.19%Q1 2026

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