AI Holders Summary · Q1 2026

141 institutions reported CRBU in Q1 2026. PFIZER INC leads at 14.7% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(5 on this page)

#HolderValueShares% port.Quarter

PFIZER INC

CIK 0000078003

$8M4.7M3.50%Q1 2026 02

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$7M3.8M0.00%Q1 2026 03

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$5M2.6M0.01%Q1 2026 04

Kynam Capital Management, LP

CIK 0001907884

$5M2.5M0.29%Q1 2026 05

BlackRock, Inc.

CIK 0002012383

$4M2.1M0.00%Q1 2026 06

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$3M1.8M0.00%Q1 2026 07

BANK OF AMERICA CORP /DE/

CIK 0000070858

$2M1.3M0.00%Q1 2026 08

Aberdeen Group plc

CIK 0001716774

$2M1.2M0.00%Q1 2026 09

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$2M1.1M0.00%Q1 2026 10

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$2M1.0M0.00%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$2M1.0M0.00%Q1 2026 12

PFM Health Sciences, LP

CIK 0001442756

$2M958K0.17%Q1 2026 13

MACKENZIE FINANCIAL CORP

CIK 0000919859

$2M943K0.00%Q1 2026 14

TWO SIGMA ADVISERS, LP

CIK 0001478735

$2M1.1M0.00%Q4 2025 15

ACADIAN ASSET MANAGEMENT LLC

CIK 0000916542

$2M925K0.00%Q1 2026 16

MARSHALL WACE, LLP

CIK 0001318757

$1M881K0.00%Q4 2025 17

FMR LLC

CIK 0000315066

$1M724K0.00%Q1 2026 18

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$1M673K0.00%Q1 2026 19

MAVERICK CAPITAL LTD

CIK 0000934639

$1M653K0.01%Q1 2026 20

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$1M560K0.00%Q1 2026

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