AI Holders Summary · Q1 2026

290 institutions reported ATEN in Q1 2026. BlackRock, Inc. leads at 25.8% 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

$303M13.1M0.01%Q1 2026 02

Boston Trust Walden Corp

CIK 0001534866

$90M2.4M0.69%Q2 2026 03

Penserra Capital Management LLC

CIK 0001593324

$83M3.6M0.97%Q1 2026 04

Vanguard Portfolio Management

CIK 0002100121· Index

$78M3.4M0.00%Q1 2026 05

VANGUARD CAPITAL MANAGEMENT LLC

CIK 0002100119· Index

$72M3.1M0.00%Q1 2026 06

STATE STREET CORP

CIK 0000093751

$71M3.1M0.00%Q1 2026 07

WELLINGTON MANAGEMENT GROUP LLP

CIK 0000902219

$48M2.1M0.01%Q1 2026 08

BARCLAYS PLC

CIK 0000312069

$43M1.9M0.01%Q1 2026 09

RENAISSANCE TECHNOLOGIES LLC

CIK 0001037389

$41M1.8M0.06%Q1 2026 10

FIRST TRUST ADVISORS LP

CIK 0001125816· Index

$40M1.7M0.03%Q1 2026 11

GEODE CAPITAL MANAGEMENT, LLC

CIK 0001214717· Index

$40M1.7M0.00%Q1 2026 12

DIMENSIONAL FUND ADVISORS LP

CIK 0000354204· Quasi-passive

$38M1.6M0.01%Q1 2026 13

MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.

CIK 0001705339

$36M1.6M0.05%Q1 2026 14

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 0001164508

$35M1.5M0.02%Q1 2026 15

PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.

CIK 0001238990

$34M1.5M1.95%Q1 2026 16

TWO SIGMA INVESTMENTS, LP

CIK 0001179392

$31M1.3M0.02%Q1 2026 17

GOLDMAN SACHS GROUP INC

CIK 0000886982

$27M1.2M0.00%Q1 2026 18

PRICE T ROWE ASSOCIATES INC /MD/

CIK 0000080255

$25M1.1M0.00%Q1 2026 19

PRUDENTIAL FINANCIAL INC

CIK 0001137774

$20M885K0.03%Q1 2026 20

Boston Partners

CIK 0001386060

$19M816K0.02%Q1 2026

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