AI Holders Summary · Q1 2026

351 institutions reported PCVX in Q1 2026. JANUS HENDERSON GROUP PLC leads at 13.8% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(4 on this page)

#HolderValueShares% port.Quarter

JANUS HENDERSON GROUP PLC

CIK 0001274173

$960M16.6M0.46%Q1 2026 02

FMR LLC

CIK 0000315066

$958M16.5M0.05%Q1 2026 03

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$705M12.1M0.49%Q1 2026 04

RA CAPITAL MANAGEMENT, L.P.

CIK 0001346824

$667M11.5M7.07%Q1 2026 05

BlackRock, Inc.

CIK 0002012383

$638M11.0M0.01%Q1 2026 06

Vanguard Portfolio Management

CIK 0002100121· Index

$365M6.3M0.02%Q1 2026 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$364M6.3M0.01%Q1 2026 08

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$326M5.6M0.06%Q1 2026 09

Paradigm Biocapital Advisors LP

CIK 0001855655

$279M4.8M5.69%Q1 2026 10

STATE STREET CORP

CIK 0000093751

$258M4.4M0.01%Q1 2026 11

Deep Track Capital, LP

CIK 0001856083

$250M4.3M4.08%Q1 2026 12

WESTFIELD CAPITAL MANAGEMENT CO LP

CIK 0001177719

$212M3.6M0.89%Q1 2026 13

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$186M3.2M0.01%Q1 2026 14

Kynam Capital Management, LP

CIK 0001907884

$170M2.9M10.48%Q1 2026 15

D. E. Shaw & Co., Inc.

CIK 0001009207

$168M3.6M0.09%Q4 2025 16

Caligan Partners LP

CIK 0001727492

$120M2.1M7.97%Q1 2026 17

Polar Capital Holdings Plc

CIK 0001837309

$83M1.4M0.29%Q1 2026 18

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$82M1.4M0.01%Q1 2026 19

MAVERICK CAPITAL LTD

CIK 0000934639

$80M1.4M0.92%Q1 2026 20

EVENTIDE ASSET MANAGEMENT, LLC

CIK 0001442891

$80M1.4M1.32%Q1 2026

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