AI Holders Summary · Q2 2026

346 institutions reported PTGX in Q2 2026. BlackRock, Inc. leads at 17.9% 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

$1.3B10.3M0.02%Q2 2026 02

FARALLON CAPITAL MANAGEMENT LLC

CIK 0000909661

$778M6.3M3.59%Q2 2026 03

RTW INVESTMENTS, LP

CIK 0001493215

$620M5.1M5.30%Q2 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$445M3.6M0.02%Q2 2026 05

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$419M3.4M0.07%Q2 2026 06

UBS Group AG

CIK 0001610520

$417M3.4M0.05%Q2 2026 07

STATE STREET CORP

CIK 0000093751

$407M3.3M0.01%Q2 2026 08

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$350M2.9M0.01%Q2 2026 09

JANUS HENDERSON GROUP PLC

CIK 0001274173

$305M2.9M0.15%Q1 2026 10

JOHNSON & JOHNSON

CIK 0000200406

$300M2.4M37.59%Q2 2026 11

Invesco Ltd.

CIK 0000914208

$287M2.3M0.02%Q2 2026 12

Jupiter Topco LLC

CIK 0002146052

$261M2.1M0.11%Q2 2026 13

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$213M1.7M0.01%Q2 2026 14

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$176M1.7M0.02%Q1 2026 15

Woodline Partners LP

CIK 0001784547

$173M1.4M0.54%Q2 2026 16

BANK OF AMERICA CORP /DE/

CIK 0000070858

$162M1.3M0.01%Q2 2026 17

JENNISON ASSOCIATES LLC

CIK 0000053417

$141M1.2M0.08%Q2 2026 18

PERCEPTIVE ADVISORS LLC

CIK 0001224962

$130M1.2M2.54%Q1 2026 19

ADAR1 Capital Management, LLC

CIK 0001940272

$118M961K5.39%Q2 2026 20

MORGAN STANLEY

CIK 0000895421

$111M906K0.01%Q2 2026

Page 1 of 18

326 more holders available. Log in →