AI Holders Summary · Q2 2026

347 institutions reported ATMU in Q2 2026. BlackRock, Inc. leads at 19.8% 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

BlackRock, Inc.

CIK 0002012383

$632M12.4M0.01%Q2 2026 02

FMR LLC

CIK 0000315066

$271M5.3M0.01%Q2 2026 03

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$255M4.5M0.03%Q1 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$235M4.6M0.01%Q2 2026 05

Invesco Ltd.

CIK 0000914208

$227M4.5M0.02%Q2 2026 06

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$184M3.6M0.00%Q2 2026 07

STATE STREET CORP

CIK 0000093751

$166M3.3M0.00%Q2 2026 08

GOLDMAN SACHS GROUP INC

CIK 0000886982

$148M2.9M0.01%Q2 2026 09

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$146M2.9M0.01%Q2 2026 10

Neuberger Berman Group LLC

CIK 0001465109

$123M2.4M0.08%Q2 2026 11

T. Rowe Price Investment Management, Inc.

CIK 0001897612

$90M1.6M0.06%Q1 2026 12

JANUS HENDERSON GROUP PLC

CIK 0001274173

$88M1.6M0.04%Q1 2026 13

Channing Capital Management, LLC

CIK 0001302404

$88M1.7M2.03%Q2 2026 14

Jupiter Topco LLC

CIK 0002146052

$83M1.6M0.03%Q2 2026 15

MORGAN STANLEY

CIK 0000895421

$83M1.6M0.00%Q2 2026 16

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$81M1.6M0.05%Q2 2026 17

D. E. Shaw & Co., Inc.

CIK 0001009207

$75M1.4M0.04%Q4 2025 18

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$74M1.5M0.01%Q2 2026 19

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$74M1.4M0.01%Q2 2026 20

EMINENCE CAPITAL, LP

CIK 0001107310

$73M1.3M1.67%Q1 2026

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