AI Holders Summary · Q2 2026

1,530 institutions reported ZTS in Q2 2026. BlackRock, Inc. leads at 17.7% 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

BlackRock, Inc.

CIK 0002012383

$2.8B39.4M0.04%Q2 2026 02

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$1.9B26.0M0.04%Q2 2026 03

Vanguard Portfolio Management

CIK 0002100121· Index

$1.7B23.9M0.08%Q2 2026 04

STATE STREET CORP

CIK 0000093751

$1.4B19.7M0.04%Q2 2026 05

STATE FARM MUTUAL AUTOMOBILE INSURANCE CO

CIK 0000315032

$1.1B15.9M0.78%Q2 2026 06

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$952M13.3M0.05%Q2 2026 07

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$677M9.4M0.12%Q2 2026 08

MORGAN STANLEY

CIK 0000895421

$638M8.9M0.03%Q2 2026 09

BROWN ADVISORY INC

CIK 0001345929

$509M4.0M0.71%Q4 2025 10

NORDEA INVESTMENT MANAGEMENT AB

CIK 0001218210

$472M6.6M0.38%Q2 2026 11

ALLIANCEBERNSTEIN L.P.

CIK 0001109448

$457M3.6M0.15%Q1 2026 12

JANUS HENDERSON GROUP PLC

CIK 0001274173

$438M3.7M0.21%Q1 2026 13

DEUTSCHE BANK AG\

CIK 0000948046

$421M5.9M0.12%Q2 2026 14

NORTHERN TRUST CORP

CIK 0000073124· Index

$398M5.5M0.05%Q2 2026 15

Invesco Ltd.

CIK 0000914208

$397M5.5M0.03%Q2 2026 16

FIL Ltd

CIK 0000318989

$387M5.4M0.28%Q2 2026 17

CITADEL ADVISORS LLC

CIK 0001423053

$374M5.2M0.04%Q2 2026 18

NORGES BANK

CIK 0001374170· Sovereign

$337M4.7M0.03%Q2 2026 19

VAN ECK ASSOCIATES CORP

CIK 0000869178

$306M4.3M0.19%Q2 2026 20

FLOSSBACH VON STORCH SE

CIK 0001575677

$303M4.2M1.37%Q2 2026

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