AI Holders Summary · Q2 2026

239 institutions reported ATAI in Q2 2026. BlackRock, Inc. leads at 24.1% of the visible book.

Top holders

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

Hide index funds / market makers / custodians(8 on this page)

#HolderValueShares% port.Quarter

BlackRock, Inc.

CIK 0002012383

$135M25.6M0.00%Q2 2026 02

Deep Track Capital, LP

CIK 0001856083

$76M14.4M1.11%Q2 2026 03

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$62M11.7M0.00%Q2 2026 04

STATE STREET CORP

CIK 0000093751

$44M8.3M0.00%Q2 2026 05

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$37M6.9M0.00%Q2 2026 06

ADAGE CAPITAL PARTNERS GP, L.L.C.

CIK 0001165408

$30M5.6M0.04%Q2 2026 07

UBS Group AG

CIK 0001610520

$23M4.4M0.00%Q2 2026 08

Vanguard Portfolio Management

CIK 0002100121· Index

$22M4.1M0.00%Q2 2026 09

MORGAN STANLEY

CIK 0000895421

$20M3.8M0.00%Q2 2026 10

Candriam S.C.A.

CIK 0001537014

$16M3.0M0.07%Q2 2026 11

NORTHERN TRUST CORP

CIK 0000073124· Index

$14M2.6M0.00%Q2 2026 12

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 0001446194· Market maker

$12M2.3M0.00%Q2 2026 13

RTW INVESTMENTS, LP

CIK 0001493215

$11M2.0M0.09%Q2 2026 14

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

CIK 0000884546· Index

$10M2.0M0.00%Q2 2026 15

MILLENNIUM MANAGEMENT LLC

CIK 0001273087

$9M1.8M0.00%Q2 2026 16

Eagle Health Investments LP

CIK 0001842545

$9M1.7M1.49%Q2 2026 17

VANGUARD FIDUCIARY TRUST CO

CIK 0000933478· Index

$8M1.6M0.00%Q2 2026 18

Halter Ferguson Financial Inc.

CIK 0001842665

$8M1.5M1.27%Q2 2026 19

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$7M1.4M0.00%Q2 2026 20

Nuveen, LLC

CIK 0001871926

$7M1.3M0.00%Q2 2026

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