AI Holders Summary · Q1 2026

381 institutions reported PTCT in Q1 2026. BlackRock, Inc. leads at 19.3% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(3 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$882M12.9M0.02%Q1 2026 02

RTW INVESTMENTS, LP

CIK 0001493215

$528M7.7M5.25%Q1 2026 03

JANUS HENDERSON GROUP PLC

CIK 0001274173

$490M7.2M0.23%Q1 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$327M4.8M0.02%Q1 2026 05

STATE STREET CORP

CIK 0000093751

$296M4.3M0.01%Q1 2026 06

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$269M3.9M0.05%Q1 2026 07

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$250M3.7M0.01%Q1 2026 08

TORONTO DOMINION BANK

CIK 0000947263

$206M3.0M0.30%Q1 2026 09

ARMISTICE CAPITAL, LLC

CIK 0001601086

$168M2.5M2.99%Q1 2026 10

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$151M2.2M0.01%Q1 2026 11

D. E. Shaw & Co., Inc.

CIK 0001009207

$133M1.7M0.07%Q4 2025 12

BANK OF AMERICA CORP /DE/

CIK 0000070858

$129M1.9M0.01%Q1 2026 13

Hood River Capital Management LLC

CIK 0001578177

$113M1.7M1.14%Q1 2026 14

FMR LLC

CIK 0000315066

$104M1.5M0.01%Q1 2026 15

TANG CAPITAL MANAGEMENT LLC

CIK 0001232621

$102M1.5M5.19%Q1 2026 16

UBS Group AG

CIK 0001610520

$93M1.4M0.01%Q1 2026 17

Jefferies Financial Group Inc.

CIK 0000096223

$92M1.4M0.63%Q1 2026 18

CITADEL ADVISORS LLC

CIK 0001423053

$89M1.2M0.01%Q4 2025 19

Pictet Asset Management Holding SA

CIK 0001993888

$80M1.2M0.08%Q1 2026 20

FRANKLIN RESOURCES INC

CIK 0000038777

$76M1.1M0.02%Q1 2026

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