AI Holders Summary · Q1 2026

1,433 institutions reported REGN in Q1 2026. BlackRock, Inc. leads at 15.7% 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

$6.9B8.9M0.12%Q1 2026 02

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$5.1B6.7M0.13%Q1 2026 03

STATE STREET CORP

CIK 0000093751

$3.6B4.7M0.12%Q1 2026 04

DODGE & COX

CIK 0000200217

$3.4B4.5M1.89%Q1 2026 05

JPMORGAN CHASE & CO

CIK 0000019617

$3.2B4.3M0.21%Q1 2026 06

Invesco Ltd.

CIK 0000914208

$3.0B3.9M0.29%Q1 2026 07

FRANKLIN RESOURCES INC

CIK 0000038777

$2.1B2.7M0.52%Q1 2026 08

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$2.0B2.6M0.12%Q1 2026 09

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$1.7B2.2M0.19%Q1 2026 10

Nuveen, LLC

CIK 0001871926

$1.6B2.1M0.43%Q1 2026 11

LOOMIS SAYLES & CO L P

CIK 0000312348

$1.5B1.9M1.99%Q1 2026 12

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$1.4B1.8M0.27%Q1 2026 13

Vanguard Portfolio Management

CIK 0002100121· Index

$1.3B1.7M0.07%Q1 2026 14

FMR LLC

CIK 0000315066

$1.2B1.5M0.06%Q1 2026 15

GOLDMAN SACHS GROUP INC

CIK 0000886982

$1.2B1.5M0.13%Q1 2026 16

Capital World Investors

CIK 0001422849

$1.1B1.4M0.15%Q1 2026 17

MORGAN STANLEY

CIK 0000895421

$1.0B1.3M0.06%Q1 2026 18

AQR CAPITAL MANAGEMENT LLC

CIK 0001167557

$946M1.2M0.43%Q1 2026 19

BANK OF AMERICA CORP /DE/

CIK 0000070858

$919M1.2M0.07%Q1 2026 20

Amundi

CIK 0001330387

$780M1.0M0.21%Q1 2026

Page 1 of 72

1413 more holders available. Log in →